Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 1021. Отображено 100.
02-01-2020 дата публикации

METHOD FOR REBUILDING AN ELECTRIC SUPPLY GRID

Номер: US20200003181A1
Автор: BROMBACH Johannes, BUSKER Kai, MACKENSEN Ingo
Принадлежит:

A method for rebuilding an electric supply grid of a grid operator by means of at least one wind power installation, wherein the electric supply grid has a first grid section and at least one further grid section, wherein the first grid section is connected to the at least one wind power installation and has a first grid nominal voltage, the first grid section is coupled to the at least one further grid section via at least one switching device in order to transmit electric energy between the grid sections, wherein the at least one switching device is set up to disconnect the first grid section from the at least one further grid section in the event of a fault, comprising the steps of operating the at least one wind power installation in an observation mode if the fault occurs, wherein the wind power installation does not feed the first grid section in the observation road and a status of the first grid section is checked, and operating the at least one wind power installation in a grid rebuilding mode if the first grid section has a grid rebuilding voltage, and operating the at least one wind power installation in a normal operating mode again as soon as the fault has passed. 1. A method for rebuilding an electric supply grid by at least one wind power installation , wherein the electric supply grid includes a first grid section and a second grid section , wherein:the first grid section is coupled to the at least one wind power installation and has a first grid nominal voltage,the first grid section is coupled to the second grid section via at least one switching device in order to transmit electric energy between the first and second grid sections, and operating the at least one wind power installation in an observation mode if the fault occurs, wherein the at least one wind power installation does not feed into the first grid section in the observation mode and a status of the first grid section is checked;', 'operating the at least one wind power installation in ...

Подробнее
Номер записи: 1
02-01-2020 дата публикации

GENERATION OF PATTERNS FOR IDENTIFYING FAULTS IN POWER SUPPLY SYSTEMS

Номер: US20200003821A1
Автор: BEYER Dagmar, HEYDE Chris Oliver, MUENZ Ulrich
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A method is for the generation of patterns for identifying faults in power supply systems. In this case, values characterizing a state of the power supply system are used for measurable variables specific to the power supply system for various times in a power supply system and values are determined for the variables specific to the power supply system via a model for the power supply system. In this case, the determination via a model is based on known system-specific input variables and unknown system-specific variables, and the unknown system-specific variables are determined in accordance with a fault-free functioning power supply system. Finally, a pattern for identifying faults is generated by forming the difference between the values characterizing the state and the values determined via the model for the various times. 1. A method for the generation of at least one patterns for identifying faults in a power supply system , the method comprising:using values characterizing a state of a power supply system in the power supply system as measurable variables specific to the power supply system; the determining via the model includes a use of known system-specific input variables and unknown system-specific variables, and', 'the determining via the model includes determining the unknown system-specific variables in accordance with a fault-free functioning power supply system; and, 'determining values for the measurable variables specific to the power supply system via a model for the power supply system, wherein'}generating the at least one pattern for identifying faults by forming differences between values characterizing a state and the values determined via the model at various times.2. The method of claim 1 ,wherein the known system-specific input variables include the measurable variables specific to the power supply system.3. The method of claim 1 ,wherein the model is controlled based upon the known system-specific variables.4. The method{'claim-ref': {'@ ...

Подробнее
Номер записи: 2
02-01-2020 дата публикации

SYSTEMS AND METHODS TO AGGREGATE DISTRIBUTED ENERGY RESOURCES

Номер: US20200004212A1
Автор: Fife John Michael, Patterson Gregg
Принадлежит:

The present disclosure is directed to systems and methods for economically optimal control of an electrical system. Some embodiments employ generalized multivariable constrained continuous optimization techniques to determine an optimal control sequence over a future time domain in the presence of any number of costs, savings opportunities (value streams), and constraints. Some embodiments also include control methods that enable infrequent recalculation of the optimal setpoints. Some embodiments may include a battery degradation model that, working in conjunction with the economic optimizer, enables the most economical use of any type of battery. Some embodiments include techniques for load and generation learning and prediction. Some embodiments include consideration of external data, such as weather. 1. A system of aggregated distributed energy resources (DERs) , comprising:a plurality of site controllers each corresponding to and controlling a site of a plurality of sites each comprising one or more corresponding DERs of a plurality of DERs, each site controller to determine a set of control values for a set of control variables to effectuate a change to the corresponding one or more DERs, wherein each site controller can determine a site impact of the corresponding one or more DERs operating during a given time period in accordance with one or more constraints and one or more cost elements associated with operation of the corresponding one or more DERs; receive an aggregation opportunity to participate in a response event, the aggregation opportunity specifying a requested power level production over a period of time of the response event;', 'provide an engagement rule set for each site controller of the plurality of site controllers, the engagement rule set defining parameters for the corresponding one or more DERs to participate in the response event;', 'receive an impact representation from each site controller of the plurality of site controllers, the ...

Подробнее
Номер записи: 3
02-01-2020 дата публикации

ELECTRIC POWER SYSTEM CONTROL WITH PLANNING OF ENERGY DEMAND AND ENERGY EFFICIENCY USING AMI-BASED DATA ANALYSIS

Номер: US20200004280A1
Автор: PESKIN MELISSA A., Powell Phillip W.
Принадлежит:

A method, apparatus, system and computer program is provided for controlling an electric power system, including implementation of an energy planning process (EPP) system which can be used to plan a voltage control and conservation (VCC) system applied to an electrical distribution connection system (EEDCS). The EPP system plans modifications to the EEDCS as a result of operating the VCC system in the “ON” state, in order to maximize the level of energy conservation achieved by the VCC system control of the EEDCS. The EPP system may also identify potential problems in the EEDCS for correction. 1. A control system for an electric power grid configured to supply electric power from a supply point to a plurality of consumption locations , the system comprising:a plurality of sensors, wherein each sensor is located at a respective one of a plurality of distribution locations on the electric power grid at or between the supply point and at least one of the plurality consumption locations, and wherein each sensor is configured to sense at least one component of a supplied electric power received at the respective consumption location and at least one of the plurality of sensors is configured to generate measurement data based on the sensed component of the power; and,a controller configured to receive the measurement data from the sensors and to communicate with at least one component adjusting device to adjust a component of the electric power grid based on a control point, wherein the controller is configured to determine an energy savings for at least one modification to the electric power grid,wherein the at least one component adjusting device is configured to adjust a component of the electric power grid based on the at least one control point.2. The system of claim 1 , wherein the at least one modification is a proposed modification.3. The system of claim 1 , wherein the at least one modification is a variation of load.4. The system of claim 1 , wherein the at ...

Подробнее
Номер записи: 4
07-01-2021 дата публикации

DATACENTER STABILIZATION OF REGIONAL POWER GRIDS

Номер: US20210004035A1
Автор: Edge Darren Keith, Lytvynets Kateryna, White Christopher Miles, Yang Weiwei
Принадлежит:

A system and method for regulating charge/discharge of a battery to stabilize a regional power grid includes a regulation control module that monitors a frequency regulation signal from the regional power grid and market conditions for obtaining power from the regional power grid. A machine learning module predicts from the frequency regulation signal and market conditions a future beneficial period when the battery may be exposed to the regional power grid to charge/discharge power in accordance with the frequency regulation signal to stabilize the regional power grid through participation in the regulation of the regional power grid. Another machine learning module calculates a regulation control signal that tracks the frequency regulation signal during the future beneficial period and outputs the regulation control signal to at least one battery control module that manages charging/discharging of the battery to selectively withdraw/apply power from/to the regional power grid during the future beneficial period. 1. A computer-implemented method of using a battery to stabilize a regional power grid , comprising:monitoring a frequency regulation signal from the regional power grid and market conditions for obtaining power from the regional power grid;predicting from the frequency regulation signal and market conditions a future beneficial period when the battery may be exposed to the regional power grid to charge/discharge power in accordance with the frequency regulation signal to stabilize the regional power grid through participation in the regulation of the regional power grid;calculating a regulation control signal that tracks the frequency regulation signal during the future beneficial period; andduring the future beneficial period, charging/discharging the battery in response to the regulation control signal.2. The method of claim 1 , wherein the market conditions comprise at least one of (1) a discrepancy between available power from the regional power grid ...

Подробнее
Номер записи: 5
02-01-2020 дата публикации

Machine learning of electrical system behavior, and related systems, apparatuses, and methods

Номер: US20200005208A1
Автор: John Michael Fife
Принадлежит: Enel X North America Inc

The present disclosure is directed to machine learning of electrical power system behavior, and related systems, apparatuses, and methods. A controller of an electrical power system includes a data storage device configured to store model data indicating a model load power consumed by loads of the electrical power system. The controller also includes a processor configured to determine current data including current load power consumed by the loads, modify the model data by aggregating the model data with the current data, and determine a set of control values for a set of control variables to effectuate a change to operation of the electrical power system based, at least in part, on the model data.

Подробнее
Номер записи: 6
03-01-2019 дата публикации

SYSTEMS AND METHODS FOR REAL-TIME DC MICROGRID POWER ANALYTICS FOR MISSION-CRITICAL POWER SYSTEMS

Номер: US20190005165A1
Автор: Meagher Kevin, Nasle Adib, Radibratovic Brian
Принадлежит: POWER ANALYTICS CORPORATION

Systems and methods for performing power analytics on a microgrid. In an embodiment, predicted data is generated for the microgrid utilizing a virtual system model of the microgrid, which comprises a virtual representation of a topology of the microgrid. Real-time data is received via a portal from at least one external data source. If the difference between the real-time data and the predicted data exceeds a threshold, a calibration and synchronization operation is initiated to update the virtual system model in real-time. Power analytics may be performed on the virtual system model to generate analytical data, which can be returned via the portal. 1. A system for performing power analytics on a microgrid , comprising:at least one processor, comprising a virtual system modeling engine and analytics engine; and a microgrid portal;wherein the virtual system modeling engine is configured to generate a virtual system model of the microgrid and generate predicted output data based on the virtual system model;wherein the microgrid portal is configured to connect at least one data source of the microgrid via at least one data acquisition system to the virtual system model and to communicate real-time output data from the at least one data source of the microgrid to the virtual system model;wherein the analytics engine is configured to monitor the predicted output data and real-time output data from the at least one data source of the microgrid, and calibrate the virtual system model based on a difference between the predicted output data and the real-time output data; wherein the virtual system model is synchronized with the microgrid;wherein the analytics engine is configured to generate analytical data by performing power analytics required for a size and a scope and a mission of the microgrid;wherein the analytics engine is further configured to calculate a real-time system security index value based on stability indices generated from the virtual system model once a ...

Подробнее
Номер записи: 7
03-01-2019 дата публикации

PRIMARY POWER GRID FREQUENCY RESPONSE CHARACTERIZATION USING PHASOR MEASUREMENT UNIT DATA

Номер: US20190006848A1
Автор: Pai Gurudatha, Parashar Manu, Ramapuram-Matavalam Amarsagar
Принадлежит:

The technology is generally directed towards characterizing primary frequency response parameters (e.g., frequency response coefficient, inertia, damping, droop) for an interconnection, region, and power plant utilizing phasor measure unit (PMU) data captured during an event (e.g., a generation trip event) that causes an imbalance in the power grid system. Pre-processing of localized PMU based frequency measurements combined with system identification techniques fit the observed frequency response to estimate parameters such as system inertia, frequency response coefficient, turbine time constant, system damping and governor droop that characterize the interconnection-wide frequency response. 1. A method , comprising:detecting, by a system comprising a processor, a change in power in a power grid system that changes a frequency associated with the power grid system; and establishing, based on measurement data associated with the power grid, a boundary region for a frequency response of the power grid system; and', 'varying at least one transfer function parameter value of a transfer function that relates the change in power to the change in frequency until the frequency response is within the boundary region., 'in response to the detecting the change in power2. The method of claim 1 , further comprising claim 1 , determining a system response value of the power grid system based on the measurement data claim 1 , and using the system response value to obtain transfer function parameter values of the transfer function.3. The method of claim 2 , wherein the determining the system response value comprises estimating dynamic response parameter values from the measurement data and a change in power value representing the change in power.4. The method of claim 1 , wherein the determining the system response value comprises computing the system response value based on a first value representative of system droop and a second value representative of system damping.5. The ...

Подробнее
Номер записи: 8
03-01-2019 дата публикации

METHOD FOR FORECASTING THE POWER DAILY GENERABLE BY A SOLAR INVERTER

Номер: US20190006850A1
Автор: Bistoni Fabio, Koutifaris Andrea, Polverini Luca, Vernia Filippo
Принадлежит: ABB Schweiz AG

A method for forecasting the power generable by a solar inverter during a current day, including: a) collecting sunrise measurements related to the power generated by the inverter during at least a staring period of the sunrise of one or more days including the current day; and b) performing modelling techniques based on the sunrise measurements of at least one of the one or more days, for determining a forecasting model which fits the sunrise measurements and predicts the power generable by the inverter during the rest of the current day. 1. A method for forecasting the power generable by a solar inverter during a current day (D) , the method comprises:{'sub': 1', 's', '1', '2', '1, 'a) collecting at least sunrise measurements (Ms) related to the power generated by the solar inverter during at least a staring period (T) of the sunrise of one or more days (D, D, . . . ) comprising the current day (D); and'}{'sub': 1', '1', 'start', '1', '1', '2, 'b) determining a forecasting model, which fits the sunrise measurements (Ms) and predicts the power generable by the solar inverter during the rest of the current day (D), by performing modelling techniques on starting model equations (Eq) initially set to predict the power generable by said solar inverter during the rest of the current day, said modelling techniques based on the sunrise measurements (Ms) of at least one of said one or more days (D, D, . . . ).'}2. The method according to claim 1 , wherein step b) comprises performing the modelling techniques based on the sunrise measurements (Ms) of the current day (D).3. The method according to claim 1 , wherein:{'sub': 1', '2', '1, 'said step a) comprises collecting sunrise measurements (Ms) of at least one previous day (D, . . . ) preceding the current day (D); and'} [{'sub': 1', '1', '2', '1, 'b) performing said modelling techniques based at least on the sunrise measurements (Ms) of the previous day (D) to determine a candidate model of the power generable by the solar ...

Подробнее
Номер записи: 9
02-01-2020 дата публикации

DEMAND SETPOINT MANAGEMENT IN ELECTRICAL SYSTEM CONTROL AND RELATED SYSTEMS, APPARATUSES, AND METHODS

Номер: US20200006940A1
Автор: Fife John Michael
Принадлежит:

The present disclosure is directed to systems and methods for controlling an electrical system using setpoints. Some embodiments include control methods that monitor an adjusted net power associated with the electrical system and adjust the setpoint based on a comparison of the adjusted demand to the setpoint. If the adjusted demand has not exceeded the demand setpoint, the setpoint is reduced. If the adjusted demand has exceeded the demand setpoint, the setpoint is increased. 1. A controller of an electrical power system , the controller comprising:a data storage device to store a demand setpoint representing a desired upper limit of demand of an electrical power system; provide at least one control value to the electrical power system to effectuate a change to the electrical power system to attempt to comply with the demand setpoint;', 'monitor an adjusted demand associated with the electrical power system;', 'compare the adjusted demand to the demand setpoint and if the adjusted demand is greater than the demand setpoint, increase the demand setpoint; and', 'reduce the setpoint., 'one or more processors operably coupled to the data storage device and configured to2. The controller of claim 1 , wherein the one or more processors are configured to: reduce the demand setpoint continuously; compare the adjusted demand continuously to determine if the demand setpoint should be increased; or both reduce the demand setpoint continuously and compare continuously to determine if the demand setpoint should be increased.3. The controller of claim 1 , wherein the one or more processors are configured to reduce or increase the demand setpoint periodically.4. The controller of claim 1 , wherein the one or more processors are configured to reduce the demand setpoint periodically independent of the comparison of the adjusted demand and the demand setpoint and to increase the demand setpoint immediately in response to the adjusted demand exceeding the demand setpoint.5. The ...

Подробнее
Номер записи: 10
02-01-2020 дата публикации

MANAGING CONSUMER ENERGY DEMAND

Номер: US20200006943A1
Автор: Arar Raphael I., Asthana Shubhi, Butler Eric K., Chowdhary Pawan R., Gopisetty Sandeep, Hernandez Manuel, JR. Hovey R., Kieliszewski Cheryl A., Roche Kevin P., Strong
Принадлежит:

A computer-implemented method, according to one embodiment, includes: receiving an energy consumption profile which spans multiple intervals in a period of time, and predicting a net energy demand of a consumer system over the period of time. Moreover, a first multiple is determined which, when applied to the received energy consumption profile, produces an updated energy consumption profile which corresponds to an amount of energy that is capable of satisfying the predicted net energy demand of the consumer system. A greatest amount of underprediction is estimated. A greatest amount of overprediction is also estimated. Furthermore, an initial state of an energy storage device electrically coupled to the consumer system is computed according to the updated energy consumption profile. The initial state of the energy storage device is also based on a second multiple applied to each of the greatest amount of underprediction, and the greatest amount of overprediction. 1. A computer-implemented method , comprising:receiving an energy consumption profile which spans multiple intervals in a period of time;predicting a net energy demand of a consumer system over the period of time;determining a first multiple which, when applied to the received energy consumption profile, produces an updated energy consumption profile which corresponds to an amount of energy that is capable of satisfying the predicted net energy demand of the consumer system;estimating a greatest amount of underprediction by which the predicted net energy demand of the consumer system underpredicts an actual net energy demand of the consumer system over the period of time;estimating a greatest amount of overprediction by which the predicted net energy demand of the consumer system overpredicts the actual net energy demand of the consumer system over the period of time; andcomputing an initial state of an energy storage device electrically coupled to the consumer system which is able to satisfy the actual ...

Подробнее
Номер записи: 11
02-01-2020 дата публикации

RANDOM VARIABLE GENERATION FOR STOCHASTIC ECONOMIC OPTIMIZATION OF ELECTRICAL SYSTEMS, AND RELATED SYSTEMS, APPARATUSES, AND METHODS

Номер: US20200006946A1
Автор: Fife John Michael, Silva-Monroy Cesar A., Wolkoff Rebecca G.
Принадлежит:

Electrical system controllers, computer-readable storage media, and related methods for generating random variables for stochastic control of electrical systems. An electrical power system controller includes a processor. The processor is configured to generate an uncertainty metric based on observed input data, the uncertainty metric configured to indicate an uncertainty of an input variable. The processor is configured to generate a random variable based on the uncertainty metric to forecast the input data during a future period of time. The processor is also configured to generate a cost function corresponding to a cost of operating the electrical power system during the future period of time. The cost function is a function of the one or more random variables. The processor is further configured to control operation of the electrical power system during the future period of time based on an optimization of the cost function. 1. An electrical power system controller , comprising:one or more data storage devices;one or more observed input data interfaces configured to receive observed input data, the observed input data corresponding to observed values of one or more input variables during one or more previous periods of time; and store the observed input data on the one or more data storage devices;', 'generate one or more uncertainty metrics based on the observed input data, the one or more uncertainty metrics configured to indicate an uncertainty of the one or more input variables;', 'generate one or more random variables based on the one or more uncertainty metrics to forecast input data during a future period of time;', 'generate a cost function corresponding to a cost of operating the electrical power system during the future period of time, wherein the cost function is a function of the one or more random variables; and', 'control operation of the electrical power system during the future period of time based on an optimization of the cost function., 'one ...

Подробнее
Номер записи: 12
11-01-2018 дата публикации

METHOD OF AND APPARATUS ADAPTED FOR CONTROLLING A POWER CONSUMPTION OF A MEDIA STREAM REPRODUCING DEVICE

Номер: US20180011525A1
Автор: Keller Anton Werner
Принадлежит:

A method of controlling a power consumption of a media stream reproducing device having a wide input voltage range power supply includes receiving a media stream and providing an output signal representative of the received media stream. A mains supply voltage of the media stream receiver is monitored and, in case the measured mains supply voltage falls below a first level the method further includes one or more of providing an output signal representative of a message indicating the reduced mains supply voltage and advising a user to reduce the power consumption of at least the media stream reproducing device, or providing an output signal controlling a first reduction of the power consumption of the media stream reproducing device, or controlling a recording device operatively connected to the media stream reproducing device to record the received media stream for later reproduction. 1. A method of controlling a power consumption of a device that is powered from a single mains supply voltage source , the device having a wide input voltage range power supply circuit adapted to provide a constant output power over a wide mains supply voltage range , the method including:monitoring, in a monitoring circuit, the mains supply voltage of the device;in case the measured mains supply voltage is below a first level within the wide input voltage range of the power supply circuit, reducing the power consumption of the device and continuing monitoring the mains supply voltage while the power consumption of the device is reduced, wherein the method further includes, after the power consumption has been reduced and in case the mains supply voltage exceeds a second level for a first time period,cancelling the reduction of the power consumption of the device in response to a corresponding control signal, wherein a delay proper to the device is set to expire before the cancellation is executed.2. The method of claim 1 , further including determining an average normal mains power ...

Подробнее
Номер записи: 13
10-01-2019 дата публикации

METHOD AND SYSTEM FOR DESIGNING AN ELECTRICITY DISTRIBUTION NETWORK

Номер: US20190012408A1
Автор: FORBES Joseph Patrick, LAMBETH Lois Elenid
Принадлежит:

A system and method for designing an electricity distribution network in a geographic area includes receiving design inputs that include data indicative of locations of one or more substations a location of at least one zone substation, how much power is required by the substations, a supply capacity of the zone substation, and data indicative of a maximum allowed number of outgoing feeders that can be supported by the zone substation; receiving or accessing architecture rules dictating minimum requirements of the electricity distribution network; electronically generating design outputs by determining a plurality of paths using the design inputs, the architecture rules and a linear optimisation function subject to linear and integer constraints, such that a total length of the paths is minimized, wherein the design outputs include the plurality of paths; and electronically outputting the design outputs. 128.-. (canceled)29. A computer-implemented method of designing an electricity distribution network for a geographic area , the method comprising:electronically receiving design inputs comprising data indicative of locations of one or more substations for serving electricity to the geographic area, data indicative of a location of at least one zone substation for serving electricity to the substations, data indicative of how much power is required by the substations, data indicative of a supply capacity of the zone substation, data indicative of a maximum allowed number of outgoing feeders that can be supported by the zone substation, and street network inputs specifying where cables may be laid or strung;electronically receiving or accessing architecture rules dictating minimum requirements of the electricity distribution network;electronically generating design outputs by determining a plurality of paths for laying or stringing cables to implement the electricity distribution network, at least one of the paths being between the zone substation and one or more of ...

Подробнее
Номер записи: 14
09-01-2020 дата публикации

APPARATUS AND METHOD FOR NON-INVASIVELY ANALYZING BEHAVIORS OF MULTIPLE POWER DEVICES IN CIRCUIT AND MONITORING POWER CONSUMED BY INDIVIDUAL DEVICES

Номер: US20200012306A1
Автор: AHN Hyun Kwon, AHN Tae Hyo, Kim Han Soo
Принадлежит:

The present invention provides a method for analyzing power devices in a circuit by using a non-invasive technique, wherein a power analysis apparatus: analyzes information on power supplied to the circuit, so as to acquire information on power patterns which are generated according to ON/OFF operation states of individual power devices, and classifies the power patterns into groups of their own similar power patterns by making reference to the information on the power patterns, so as to acquire at least one piece of motif information which is information on at least one fingerprint; counts the frequency of occurrence of each motif by analyzing information on power supplied to the circuit for a predetermined operation state determination time; and determines, as information on the operation state of a particular power device among the individual power devices, a pair of specific motifs having the difference between the counted frequencies of occurrence, which is within a predetermined value range, and average power variation values symmetrical to each other, whereby an accurate determination can be made as to the individual power devices in the circuit. 1. A method for non-invasively analyzing power devices in a circuit , comprising steps of:(a) a power analyzing device analyzing power information on power fed into the circuit, to thereby acquire power pattern information generated according to ON or OFF states of individual power devices;(b) the power analyzing device classifying pieces of the acquired power pattern information into each group of its own similar power patterns, to thereby acquire at least one piece of motif information which is information on at least one fingerprint; and(c) the power analyzing device analyzing the power information on power fed into the circuit during a preset state-detecting time range, to thereby count the number of occurrences per motif, and determine one or more pairs of specific motifs, whose differences in the number of ...

Подробнее
Номер записи: 15
10-01-2019 дата публикации

POWER GENERATION PREDICTION SYSTEM AND A METHOD THEREOF

Номер: US20190012598A1
Автор: Chang Chih-Jung, CHOU LI-FEN, LEU YIH-GUANG
Принадлежит:

A power generation prediction system using a first neural network and a second neural network is provided, and the first neural network is connected to the second neural network. The first neural network receives first input data, and generates the amount prediction data according to the first input data. The first input data is used to determine amount prediction data, and the amount prediction data is used to determine power generation prediction data. The second neural network receives the amount prediction data, and calculates the power generation prediction data according to the amount prediction data. When a device in a selected area is deteriorated or reinstalled, the second neural network is fine-tuned and trained again. 1. A power generation prediction system , applicable to an area where a plurality of devices are installed for power generation with a power generation conversion curve , and the power generation prediction system comprising:a first computing device configured to receive first input data, and use a first neural network to generate amount prediction data according to the first input data, wherein the first input data comprises meteorological data and used to determine the amount prediction data, and the amount prediction data is used to determine power generation prediction data;a second computing device connected to the first computing device and configured to receive the amount prediction data, and use a second neural network to perform an approximation function to calculate the power generation prediction data according to the amount prediction data; anda third computing device connected to the second computing device, and configured to receive second input data, and use a third neural network to generate a power generation module parameter prediction data according to the second input data, wherein the second input data is used to determine the power generation module parameter prediction data, and the power generation module parameter ...

Подробнее
Номер записи: 16
10-01-2019 дата публикации

Apparatus of Controlling Uninterruptible Power Supply for Grid

Номер: US20190013676A1
Автор: CHANG YUNG-RUEI, HOU Meng-Chen, LEE YIH-DER, SUN SHYH-WERN
Принадлежит:

An apparatus is provided for controlling uninterruptible power supply (UPS) for grid. It comprises a power bus; an energy storage system connected to the power bus; a load connected to the power bus; a renewable energy connected to the power bus; an extra generator connected to the power bus; a static switch connected to mains and the energy storage system; and a synchronizing switch connected to the extra generator. When the grid is turned from mains-connected to islanding or is already operated in an islanding mode owing to the failure of the energy storage system, the extra generator can be used as a voltage source. The stability and safety of the grid is enhanced. Furthermore, the voltage source can be put under the control of either the energy storage system or the extra generator according to requirements. Thus, stability and reliability of power supply for the grid are increased. 1. An apparatus for controlling uninterruptible power supply (UPS) for a power grid , comprising:a power bus;a load connected directly to said power bus;a renewable energy connected directly to said power bus;at least one extra generator connected directly to said power bus;an energy storage system;at least one synchronizing switch connected to said extra generator and connecting said energy storage system to said power bus;a mains; anda static transfer switch connecting said mains to said energy storage system and to said at least one synchronizing switch.2. The apparatus according to claim 1 , wherein said synchronizing switch comprises a primary and a secondary connected to said at least one extra generator.3. (canceled)4. The apparatus according to claim 1 , wherein the following steps are processed when said energy storage system is operated normally but mains is operated abnormally:(a) said grid turns from mains-connected to be operated under an islanding mode;(b) said energy storage system is functioned as a voltage source of said grid under said islanding mode; and(c) said at ...

Подробнее
Номер записи: 17
09-01-2020 дата публикации

AUTOMATED VALIDATION, ESTIMATION, AND EDITING CONFIGURATION SYSTEM

Номер: US20200014203A1
Автор: CHEN WENDY, MAIN ELIZABETH J.
Принадлежит:

An apparatus for configuring validation, estimation, and editing (VEE) rules for performing VEE on interval-based energy consumption streams includes a data stores, a rules processor, and a process control element. The stores provides tagged data sets each associated with a corresponding one of the streams, each of the sets comprising groups of contiguous interval values tagged as having been validated. The rules processor reads the stores upon initiation of an event and, for the each of the sets, creates anomalies having different durations using only the groups of values, the groups of values corresponding to correct data, and generates estimates for the anomalies by employing estimation techniques for each of the durations and, for the each of the durations, selects a corresponding one of the techniques for subsequent employment when performing VEE of subsequent energy consumption data associated with the each of the durations for the corresponding one of the streams. The control element executes functions on the streams translated by the rules processor, and directs one or more system elements to change state. 1. An apparatus for configuring validation , estimation , and editing (VEE) rules for performing VEE on interval-based energy consumption streams , the apparatus comprising:a post VEE readings data stores, configured to provide tagged energy consumption data sets that are each associated with a corresponding one of the interval-based energy consumption streams, each of said tagged energy consumption data sets comprising groups of contiguous interval values tagged as having been validated;a rules processor, configured to read said post VEE readings data stores upon initiation of an event and, for said each of said tagged energy consumption data sets, configured to create anomalies having different durations using only said groups of contiguous interval values, said groups of contiguous interval values corresponding to correct data, and configured to ...

Подробнее
Номер записи: 18
09-01-2020 дата публикации

AUTOMATED DETECTION AND CORRECTION OF VALUES IN ENERGY CONSUMPTION STREAMS

Номер: US20200014204A1
Автор: CHEN WENDY, MAIN ELIZABETH J.
Принадлежит:

An apparatus for configuring validation, estimation, and editing (VEE) rules for performing VEE on interval-based energy consumption streams includes a data stores, a rules processor, and a process control element. The stores provides tagged data sets each associated with a corresponding one of the streams, each of the sets comprising groups of contiguous interval values tagged as having been validated. The rules processor reads the stores upon initiation of an event and, for the each of the sets, creates anomalies having different durations using only the groups of values, the groups of values corresponding to correct data, and generates estimates for the anomalies by employing estimation techniques for each of the durations and, for the each of the durations, selects a corresponding one of the techniques for subsequent employment when performing VEE of subsequent energy consumption data associated with the each of the durations for the corresponding one of the streams. The control element executes functions on the streams translated by the rules processor, and directs one or more system elements to change state. 1. An apparatus for configuring validation , estimation , and editing (VEE) rules for performing VEE on interval-based energy consumption streams , the apparatus comprising:a VEE processor, configured to detect and correct one or more adjacent points in the interval-based energy consumption streams that appear to be erroneous;a post VEE readings data stores, configured to provide tagged energy consumption data sets that are each associated with a corresponding one of the interval-based energy consumption streams, each of said tagged energy consumption data sets comprising groups of contiguous interval values tagged as having been validated;a rules processor, configured to read said post VEE readings data stores upon initiation of an event and, for said each of said tagged energy consumption data sets, configured to create anomalies having different ...

Подробнее
Номер записи: 19
09-01-2020 дата публикации

SYSTEMS AND METHODS FOR MANAGING POWER QUALITY EVENTS IN AN ELECTRICAL SYSTEM

Номер: US20200014207A1
Автор: Bickel Jon A., Munro Michael A.
Принадлежит: Schneider Electric USA, Inc.

A method for managing power quality events in an electrical system includes processing electrical measurement data from or derived from energy-related signals captured by at least one intelligent electronic device (IED) to identify at least one power quality event associated with one or more loads monitored by the at least one IED. The method also includes determining at least one means for mitigating or eliminating an impact (and/or reducing a recovery time) of the at least one identified power quality event on the electrical system based, at least in part, on an evaluation of a dynamic tolerance curve associated with one or more loads in the electrical system. The method further includes applying one or more of the at least one means for mitigating or eliminating the impact (and/or reducing the recovery time) to selected portions or zones of the electrical system. 1. A method for managing power quality events in an electrical system , the method comprising:processing electrical measurement data from or derived from energy-related signals captured by at least one intelligent electronic device (IED) to identify at least one power quality event associated with one or more loads monitored by the at least one IED, wherein the at least one IED and the loads are installed at respective locations in the electrical system;determining at least one means for mitigating or eliminating an impact of the at least one identified power quality event on the electrical system based, at least in part, on an evaluation of a dynamic tolerance curve associated with one or more loads in the electrical system, wherein the dynamic tolerance curve characterizes response of the one or more loads to the at least one identified power quality event, and the impact of the at least one identified power quality event on the electrical system; andapplying one or more of the at least one means for mitigating or eliminating the impact to selected portions or zones of the electrical system.2. The ...

Подробнее
Номер записи: 20
09-01-2020 дата публикации

SUPPLEMENTAL TECHNIQUES FOR CHARACTERIZING POWER QUALITY EVENTS IN AN ELECTRICAL SYSTEM

Номер: US20200014208A1
Автор: Bickel Jon A., Wall Theresa K.
Принадлежит: Schneider Electric USA, Inc.

A method for characterizing power quality events in an electrical system includes deriving electrical measurement data for at least one first virtual meter in an electrical system from (a) electrical measurement data from or derived from energy-related signals captured by at least one first IED in the electrical system, and (b) electrical measurement data from or derived from energy-related signals captured by at least one second IED in the electrical system. In embodiments, the at least one first IED is installed at a first metering point in the electrical system, the at least one second IED is installed at a second metering point in the electrical system, and the at least one first virtual meter is derived or located at a third metering point in the electrical system. The derived electrical measurement data may be used to generate or update a dynamic tolerance curve associated with the third metering point. 1. A method for characterizing power quality events in an electrical system , comprising:processing electrical measurement data from or derived from energy-related signals captured by at least one first IED in the electrical system to generate or update a first dynamic tolerance curve associated with a first metering point in the electrical system, wherein the at least one first IED is installed at the first metering point;processing electrical measurement data from or derived from energy-related signals captured by at least one second IED in the electrical system to generate or update a second dynamic tolerance curve associated with a second metering point in the electrical system, wherein the at least one second IED is installed at the second metering point;deriving electrical measurement data for at least one first virtual meter in the electrical system from (a) the electrical measurement data from or derived from the energy-related signals captured by the at least one first IED, and (b) the electrical measurement data from or derived from the energy-related ...

Подробнее
Номер записи: 21
09-01-2020 дата публикации

System and method for controlling a power storage device

Номер: US20200014209A1
Автор: Benoit Chazottes
Принадлежит: Electricite de France SA

The present invention relates to a local control system (6) configured to define a charge or discharge command made to a power storage device (5) on the basis of a charge or discharge instruction, sent by an overall control system (7), and the instantaneous power used by the power-using devices (4), such that the instantaneous power used by the power using devices (4) is always greater than the discharge power of the power storage device (5), so as to guarantee that the power stored by the power storage device (5) is not re-injected into the power distribution network (3).

Подробнее
Номер записи: 22
09-01-2020 дата публикации

Energy Management Method for an Energy System and Energy System

Номер: US20200014210A1
Автор: ARNOLD Christian, HAFNER Bernd, LODIGE Daniel, STRUBEL Jan
Принадлежит:

The present invention relates to an energy management method for an energy system () in a building. The energy system () comprises a plurality of uncontrollable energy consumers (HH), at least one controllable energy consumer (WP), an energy storage device (BAT), a net connection point (NAP) through which energy can be drawn from the net and/or fed into the net, and a feedback-control or control device (EMS) which is designed to feedback-control or control the at least one controllable energy consumer (WP) and the energy storage device (BAT). The plurality of uncontrollable energy consumers (HH) is configured to draw energy from the net or from the energy storage device (BAT). The method comprises the following steps: detecting a current state of charge (SOC) of the energy store device (BAT), defining a period of time (ΔT) during which the uncontrollable energy consumers (HH) are supplied with energy from the energy storage device, determining a limit value (SOC) of the state of charge of the energy storage device (BAT) on the basis of a determined minimum energy demand of the plurality of uncontrollable energy consumers (HH) up to the time of charging (T), operating the at least one controllable energy consumer (WP) with energy from the energy storage device (BAT) if the current charge state (SOC) of the energy storage device (BAT) is greater than the determined limit value (SOC) of the charge state and operating the at least one controllable energy consumer (WP) with energy from the net if the current charge state (SOC) of the energy storage device (BAT) is less than or equal to the determined limit value (SOC) of the charge state. 111. An energy management method for an energy system () in a building , the energy system () comprising:a plurality of uncontrollable energy consumers (HH),at least one controllable energy consumer (WP),an energy storage device (BAT),a net connection point (NAP) through which energy can be drawn from the net and/or fed into the net, ...

Подробнее
Номер записи: 23
09-01-2020 дата публикации

METHOD FOR CONTROLLING AN ELECTRICAL DISTRIBUTION NETWORK

Номер: US20200014213A1
Автор: BLAAK Isabel, BROMBACH Johannes, SCHUBERT Katharina
Принадлежит:

A method for controlling an electrical distribution network, wherein a network control station is provided to control the electrical distribution network and the electrical distribution network comprises a plurality of balancing areas, wherein each balancing area outputs or receives an exchange power to or from the electrical distribution network, and wherein at least one of the balancing areas has at least one generator, in particular a wind farm, for generating a generator power and additionally at least one consumer for receiving a consumer power, wherein at least one balancing area controller is provided to control the at least one generator or wind farm, and the method comprises the following steps: reception by the balancing area controller from the network control station of a value of an exchange power to be set, wherein the exchange power is defined as a difference between the consumer power and the generator power, drawing up by the balancing area controller of a deployment plan for adherence to or attainment of the exchange power to be set, wherein the deployment plan is provided to control the generators and consumers and is drawn up in such a way that a difference between the attained exchange power and the exchange power to be set is minimal, and generation of electrical power by means of the at least one generator or wind farm depending on the deployment plan. 1. A method for controlling an electrical distribution network , wherein a network control station is configured to control the electrical distribution network and the electrical distribution network comprises a plurality of balancing areas , wherein each of the plurality of balancing areas is configured to output or receive an exchange power to or from the electrical distribution network , wherein at least one of the plurality of balancing areas has at least one generator configured to generate a generator power and has at least one consumer configured to receive a consumer power , and wherein ...

Подробнее
Номер записи: 24
19-01-2017 дата публикации

DEMAND PREDICTION SYSTEM AND PROGRAM

Номер: US20170017215A1
Автор: Shimizu Noriyoshi
Принадлежит:

A demand prediction system includes a receiver, a memory, an extractor, a model generator and a predictor. The extractor is configured to extract consumption periods for branch circuits, during each of which power is consumed once. The model generator is configured to generate models. Each model includes: an order in which the consumption periods have occurred; amounts of electric power respectively consumed during the consumption periods; and start time points and duration times, of the consumption periods. The model generator is further configured to calculate transition probabilities between the models. The predictor configured to predict, as a prediction result, an amount of electric power that is demanded in a prediction period defined as a time period after a determination time point, based on: a certain model in past before the determination time point, of the models; and a transition probability corresponding to the certain model. 1. A demand prediction system , comprising:a receiver configured to acquire, from a meter, power values respectively consumed through two or more branch circuits branched in a distribution board installed in a facility of a power consumer;a memory configured to store power information that includes a power value per branch circuit, acquired by the receiver, in association with date and time;an extractor configured to extract consumption periods for the two or more branch circuits, during each of which an electric load consumes power by being used once, based on the power information stored in the memory;a model generator configured to generate models based on pieces of the power information in prescribed periods, stored in the memory, respectively, an order in which the consumption periods have occurred,', 'amounts of electric power that have been respectively consumed during the consumption periods, and', 'start time points and duration times, of the consumption periods,, 'each model including'}the model generator being further ...

Подробнее
Номер записи: 25
16-01-2020 дата публикации

MULTI-MODE GENERATOR FOR ICE PROTECTION ON AIRCRAFT

Номер: US20200017221A1
Автор: White Jeffrey J.
Принадлежит:

On an aircraft, a multi-mode power generator is operated in a variable voltage mode to power an electric Wng Ice Prevention System (eWIPS), and is operated in a fixed voltage mode to provide backup power. When atmospheric conditions are conducive to the formation of ice (and main generators are operative), the multi-mode power generator is operated in variable voltage mode to power the eWIPS with a first or second variable voltage. The first variable voltage, the value of which depends on atmospheric conditions, is for anti-ice operation. The second variable voltage, which can be the maximum output voltage, is for de-ice operation. Transitions between different variable voltage levels are not instantaneous which eliminates fatigue damage due to transients. If a main generator fails (or when atmospheric conditions are not conducive to the formation of ice), the multi-mode power generator is operated in fixed voltage mode to provide backup power. 1. A method of operating a first multi-mode generator to power an electric Wng Ice Protection System (eWIPS) applying heat to flying surfaces of an aircraft; comprising:monitoring atmospheric conditions;during atmospheric conditions conducive to the formation of ice and when sufficient main generators are operative and providing power to a main aircraft electrical bus, operating the first multi-mode generator in a variable voltage mode and providing a variable voltage to the eWIPS; andduring atmospheric conditions not conducive to the formation of ice, or upon a failure of one or more main generators, operating the first multi-mode generator in a fixed voltage mode and providing a predetermined fixed voltage to the main aircraft electrical bus as backup power.2. The method of further comprising:monitoring the presence of ice on the aircraft flying surfaces; and providing a first variable voltage to the eWIPS when atmospheric conditions conducive to the formation of ice but no ice is detected; and', 'providing a second ...

Подробнее
Номер записи: 26
19-01-2017 дата публикации

DATA ANALYZING SYSTEM AND METHOD

Номер: US20170018038A1
Автор: IIJIMA Kouichirou, IKEMOTO Yu, KONDO Mitsuyoshi, MORITA Youichirou, Watanabe Tohru
Принадлежит:

Proposed is a data analyzing system and method capable of performing highly reliable analytical processing which matches the actual situation. In a data analyzing device and method in which load data is classified into a plurality of clusters in consumer units based on the load data representing the power usage of each consumer for each unit time and the attribute information of each consumer, a diagnostic decision tree is generated for classifying the consumer into one of the clusters based on the attribute information of that consumer. 1. A data analyzing system , comprising:a server device which collects load data representing power usage of each consumer for each unit time, and manages attribute information of each of the consumers; anda data analyzing device which classifies the load data into a plurality of clusters in consumers units based on the load data of each of the consumers for each unit time that is periodically notified from the server device and the attribute information of each of the consumers,wherein the data analyzing device:generates a diagnostic decision tree for classifying the consumers into one of the clusters based on the attribute information of each of the consumers.2. The data analyzing system according to claim 1 ,wherein the data analyzing device:calculates an intra-cluster relevance representing a degree of unity of the load data in each of the clusters when assuming that a cluster number is respectively 1 to M (M is number of the consumers), and an inter-cluster average degree of separation representing a degree of separation of the clusters; anddecides the cluster number to be used upon classifying the load data based on the calculation result.3. The data analyzing system according to claim 2 ,wherein the data analyzing device:calculates, as a relevance optimal cluster number, a minimum cluster number in which a ratio of a variation of the intra-cluster relevance relative to a variation of the cluster number is equal to or less ...

Подробнее
Номер записи: 27
18-01-2018 дата публикации

ELECTRIC VEHICLE DISTRIBUTED INTELLIGENCE

Номер: US20180018007A1
Автор: Dorn John Z., Malcolm Wade P.
Принадлежит: Accenture Global Services Limited

The present disclosure provides system and methods for electric vehicle distributed intelligence. A system may determine scheduled charging times and scheduled charging locations to charge electric vehicles. The scheduled charging locations may correspond to charging stations geographical distributed throughout a power grid. The system may receive parameters related to power grid components configured to affect distribution of power. The system may forecast a power demand for charging the electric vehicles at the scheduled charging times and scheduled charging locations. The system may determine that a power demand to charge the electric vehicles is greater or less than power made available by the power grid components at the charging stations. The system may cause power to be reallocated among the power grid components in response to determination that the power demand to charge the electric vehicles is greater or less than power made available by the power grid components. 1. A method , comprising:determining scheduled charging times and scheduled charging locations to charge electric vehicles, the scheduled charging locations corresponding to charging stations geographical distributed throughout a power grid;receiving parameters related to power grid components configured to affect distribution of power to at least one of the charging stations, the parameters indicative of power made available by the power grid components;forecasting a power demand for charging the electric vehicles at the scheduled charging times and scheduled charging locations;determining that the power demand to charge the electric vehicles is greater or less than power made available by the power grid components at the charging stations; andcausing power to be reallocated among the power grid components in response to determination that the power demand to charge the electric vehicles is greater or less than power made available by the power grid components.2. The method of claim 1 , wherein ...

Подробнее
Номер записи: 28
19-01-2017 дата публикации

SYSTEMS AND METHODS FOR REDUCING AN ELECTRIC UTILITY RESERVE CAPACITY USING INSTRUMENTED ENERGY CONSUMING DEVICES

Номер: US20170018924A1
Автор: Blackler Matthew, Jenson Ralph, Wormley Nicholas
Принадлежит:

The present disclosure relates to systems and methods for distributing power over a power distribution network. Power may be distributed across a power distribution network to power consuming devices based on power conditions and information received from control devices associated with the power consuming devices. Where power is demanded by a power consuming device, such as an electric water heater, in order to satisfy a comfort need of a consumer, the power consuming device can be prioritized and power can be allocated to that power consuming device before other consuming devices. 1. A power distribution network for distributing power to power consuming devices , the power distribution network comprising:a plurality of control devices, each control device associated with at least one power consuming device having a power consumption,wherein the power consuming devices are controlled by the control devices such that a sum of a power consumption of the power consuming devices is less than or substantially equal to a maximum power consumption for the power distribution network, the power consumption of each power consuming device is greater than or substantially equal to a minimum power consumption of the power consuming device, and the sum of the power consumption of the power consuming devices electronically connected to one power transmitting node is dependent on a desired maximum amount of transmitted power from the power transmitting node.2. The power distribution network of claim 1 , wherein the minimum power consumption of a power consuming device is based on comfort criteria for a user of the power consuming device.3. The power distribution network of claim 1 , wherein at least one control device is connected to a network.4. The power distribution network of claim 3 , wherein the control device controls power consumption of the power consuming devices based on information received from the network.5. The power distribution network of claim 4 , wherein the ...

Подробнее
Номер записи: 29
18-01-2018 дата публикации

SYSTEM AND METHOD OF DETERMINING FORECAST ERROR FOR RENEWABLE ENERGY FLUCTUATIONS

Номер: US20180019595A1
Автор: BANDI Mahesh M.
Принадлежит: Okinawa Institute of Science and Technology Graduate U

A system for determining (a) forecast error and/or (b) scaling error for wind power generation is provided, the system utilizing generated and forecast time series for power generation derived from wind and analyzing temporal correlations in the wind fluctuations to quantify: (a) the forecast error defined by deviations between the high frequency components of the forecast and generated time series, and (b) a scaling error defined by a degree that temporal correlations fail to be predicted for an accurate predictor of wind fluctuations. Wind fluctuations may exhibit multi-fractal behavior at the turbine level and/or may be rectified to a fractal structure at the grid level. A memory kernel may be used to reduce the forecast and scaling errors. 1. A computer-readable storage medium storing a program to manage energy production in an energy grid based on a physical quantity , the program causing a computer to execute at least following processes ,a first process including:a (1-1)-th step that fixes n to an integer equal to 1 or greater;a (1-2)-th step that makes a calculation shown in a formula (1) regarding the physical quantity:{'sub': G', 'F', 'F', 'G, 'sup': 'n', 'P(t) represented as a function of a time t and a predicted value of the physical quantity: P(t+τ) at a time t+τ when a fixed time τ passes from the time t, (|P(t+τ)−P(t)|). . . (1);'}a (1-3)-th step that calculates a first average value as an average value of the formula (1) when the time t is varied for a fixed period;a (1-4)-th step that calculates a first average value when the T is varied;a (1-5)-th step that performs the (1-1)-th step to the (1-4)-th step at least once for the integer that is different from the n in the (1-1)-th step; anda (1-6)-th step that calculates a time scaling error in accordance with a numeric of the n from the first average value calculated in the (1-4)-th step and the first average value calculated in the (1-5)-the step;a second process including steps below:a (2-1)-th ...

Подробнее
Номер записи: 30
17-01-2019 дата публикации

METHOD AND SYSTEM FOR MANAGING CHARGING/DISCHARGING OF ELECTRIC ENERGY BASED ON PREDICTION FOR PHOTOVOLTAIC POWER AND LOAD

Номер: US20190020197A1
Автор: AHN Cha Ho, CHOI Woo Young, KIM YOUNG IL, Yang Jin Sun
Принадлежит:

Disclosed herein is a system for managing charging/discharging of electric energy based on prediction for PV power and load. The system includes a power generation unit configured to generate electric energy from PV power, a energy storage unit configured to be charged with the electric energy supplied from the power generation unit and electric energy supplied from an external power supplier via one common node or to be discharged with the electric energy to a load via the one common node, and a manager control unit configured to predict a PV power and a load and schedule and control charging/discharging of the energy storage unit based on data of a result of the prediction. 1. A system for managing charging/discharging of electric energy based on prediction for PV power and load , comprising:a power generation unit configured to generate electric energy from PV power;a energy storage unit configured to be charged with the electric energy supplied from the power generation unit and electric energy supplied from an external power supplier via one common node or to be discharged with the electric energy to a load via the one common node; anda manager control unit configured to predict a PV power and a load and schedule and control charging/discharging of the energy storage unit based on data of a result of the prediction.2. The system according to claim 1 , wherein the manager control unit includes:a power predicting part that predicts the PV power for a preset period by processing the past PV power data using a Gaussian process method;a load predicting part that predicts the load for the preset period by processing the past load data using the Gaussian process method; anda charging/discharging setting part that generates first schedule data for scheduling the charging/discharging of the energy storage unit, using at least one information and data of the current PV power, the current electric energy charging amount, the current load and the current temperature, based ...

Подробнее
Номер записи: 31
17-01-2019 дата публикации

Method for supplying electrical power

Номер: US20190020198A1
Автор: Alfred Beekmann
Принадлежит: Wobben Properties GMBH

A method for supplying electrical power to an electrical supply grid from at least one wind power installation is provided. The supply of electrical power is controlled such that changes in the supplied electrical power are limited based on at least one limit gradient. The at least one limit gradient specifies a magnitude of a maximum change of the supplied electrical power. The least one limit gradient is set based on a property and/or an instantaneous state of the supply grid.

Подробнее
Номер записи: 32
16-01-2020 дата публикации

TOLERANCE-BASED INTELLIGENT EDGE NETWORK ENERGY DELIVERY

Номер: US20200021110A1
Автор: "OReilly Michael", BOUNDY David, Prasad Amit Umashankar, RELIHAN David
Принадлежит:

Systems and techniques for tolerance-based intelligent edge network energy delivery are described herein. A flexibility metric may be calculated for a node of the edge network. The flexibility metric of the node and flexibility metrics of a set of additional nodes of the edge network may be ranked to create a set of flexibility ranked edge nodes. A notification may be received of a demand response event. A candidate node subset may be identified from the set of flexibility ranked nodes based on requirements of the demand response event and a ranked order the set of flexibility ranked nodes. A demand response command may be transmitted to the candidate node subset upon determining that the candidate node subset satisfies the requirements of the demand response event. The demand response command may cause nodes of the candidate node subset to alter energy consumption for a time period of demand response event. 1. A system for tolerance-based intelligent energy delivery at an edge network , the system comprising:at least one processor; and calculate a flexibility metric for a node of the edge network;', 'receive a notification of a demand response event from a utility service communicatively coupled to the edge network;', 'identify a candidate node subset from a set of flexibility-ranked nodes based on requirements of the demand response event and a ranked order of the set of flexibility-ranked nodes; the set of flexibility-ranked nodes including the node; and', 'transmit a demand response command to the candidate node subset upon a determination that the candidate node subset satisfies the requirements of the demand response event, wherein the demand response command causes nodes of the candidate node subset to alter energy consumption for a time period coinciding with the demand response event., 'memory including instructions that, when executed by the at least one processor, cause the at least one processor to perform operations to2. The system of claim 1 , wherein ...

Подробнее
Номер записи: 33
16-01-2020 дата публикации

CONTROL FOR ENERGY RESOURCES IN A MICROGRID

Номер: US20200021131A1
Автор: Mana Priya Thekkumparambath, Radhakrishnan Nikitha, Schneider Kevin P., Tang Yingying, Tuffner Francis K.
Принадлежит: BATTELLE MEMORIAL INSTITUTE

A method employing an intuitive physical slider, or graphical computer display of a slider, to generate a single input value for use in generating operating set points (typically comprising dispatch and droop settings) for each of a multiplicity of energy resources in a microgrid to achieve a predetermined operational goal, such as maximizing resiliency or efficiency, or minimizing emissions. The single input value may be selected to maximize the resiliency of the microgrid, using a minimized droop when the microgrid encounters either a decrease in energy resources or an abrupt increase in end-user loads. Alternatively, the single input value may maximize the efficiency of the microgrid. Other operational goals may also be achieved with different settings of the single input value. 1. A method of controlling operating set points of energy resources in a microgrid , comprising:receiving a data set associating a plurality of energy resources with candidate operational points for the microgrid;supplying power to end-use loads using the plurality of energy resources;receiving a single input value to select an operational point of the microgrid;correlating the single input value with the data set to calculate a plurality of control set points corresponding to the selected operational point of the microgrid; andmodifying the configurations of the plurality of energy resources using the calculated control set points.2. The method of claim 1 , wherein the receiving a data set includes accessing a database of simulations of a plurality of energy resources having different control set points.3. The method of claim 1 , further including simulating a plurality of energy resources having different control set points to generate the data set.4. The method of claim 3 , wherein the simulating of the plurality of energy resources includes simulating the microgrid with different transient conditions.5. The method of claim 1 , wherein the end-use loads are within the microgrid.6. The ...

Подробнее
Номер записи: 34
26-01-2017 дата публикации

ARRANGEMENT FOR OPERATING A TECHNICAL INSTALLATION

Номер: US20170023962A1
Автор: JÄGERS Stefan
Принадлежит:

The invention provides for an arrangement for operating a technical installation comprising a number of machines, the arrangement comprises a control structure, the control structure being adapted for generating a schedule for sending requests to the machines by means of a simulation and in consideration of expectation values of the machines, for monitoring the operation achieved by switching of the machines, wherein switching of the machines is performed by the machines themselves, in order to achieve a template illustrating the switching of the machines, and for comparing the generated schedule with the template. 1. Arrangement for operating a technical installation comprising a number of machines , the arrangement comprising:a control structure;the control structure being adapted for generating a schedule for sending requests to the machines by means of a simulation and in consideration of expectation values of the machines, for monitoring the operation achieved by switching of the machines, wherein switching of the machines is performed by the machines themselves, in order to achieve a template illustrating the switching of the machines, and for comparing the generated schedule with the template.2. Arrangement according to claim 1 , adapted for operating a smart grid claim 1 , wherein the control structure is adapted for monitoring the energy flow achieved by switching of the machines.3. Arrangement according to claim 1 , wherein the control structure is adapted for providing a rank array considering the expectation values of the machines used for generating the schedule.4. Arrangement according to claim 1 , wherein the control is performed with help of a fuzzy logic using the expectation values as input values.5. Arrangement according to claim 1 , comprising a number of agents associated to the number of machines and in connection with the control structure.6. Arrangement according to claim 1 , wherein the control is implemented within one control center ...

Подробнее
Номер записи: 35
25-01-2018 дата публикации

POWER TRANSACTION MANAGEMENT SYSTEM AND POWER TRANSACTION MANAGEMENT METHOD

Номер: US20180025423A1
Автор: OKAMOTO Yoshihisa, Tsuyuzaki Masao, UTSUMI Masato, Watanabe Tohru
Принадлежит: Hitachi, Ltd.

A system for distributing electric energy on a power trading market, takes into account fluctuating adjustment capacity for power consumption among a plurality of customers. This power trading management system: performs a forecast in power prices; extracts information about a predetermined power product to be traded; adjusts a capacity forecast in the power consumption adjustment capacity which indicates the capacity to adjust power consumption is forecasted for each customer; prepares an adjustment plan by assigning electric energy to be traded to each customer on the basis of capacity to adjust power consumption; prepares a trading plan for the trading of power products on the basis of the adjustment plan; processes order information based on the trading plan and transmits the order information to a market operation management device; and transmits the adjustment plan to each customer. 1. A power transaction management system managing a power transaction , comprising:a communication unit communicatively coupled to a market operation management apparatus configured to manage a predetermined power transaction market, and to a plurality of consumers;a memory unit configured to store a predetermined computer program; anda processing unit coupled to the communication unit and the memory unit, and configured to execute the predetermined computer program thereby executing predetermined processing, whereinthe processing unit is configured to execute:power price forecasting processing of forecasting a future power price in the predetermined power transaction market;power product extracting processing of extracting information on a predetermined power product to be purchased and sold in the predetermined power transaction market on the basis of a predetermined power product extracting condition configured in advance and the forecasted power price;adjusting ability forecasting processing of forecasting, for each of the consumers, a power consumption amount adjusting ability ...

Подробнее
Номер записи: 36
26-01-2017 дата публикации

Thévenin equivalent based static contingency assessment

Номер: US20170025853A1
Автор: Hjörtur JÓHANSSON, Jakob Glarbo MØLLER
Принадлежит: Danmarks Tekniskie Universitet

The present invention relates to a method for static security assessment of a power system and a real time static security assessment system for assessing a power system, the power system having a plurality of generators, the plurality of generators being represented in the network by a plurality of voltage controlled nodes, wherein the method for static security assessment of the power system comprises receiving information of a present state of the power system, determining a Thevenin equivalent for each voltage controlled node, determining for each voltage controlled node on basis of the determined present state of the power system and determining a first representation of the network based on the determined Thevenin equivalents, determining a modified representation of the network, wherein the modified representation is a representation of the network having at least one contingency, wherein at least one Thevenin equivalent of at least one voltage controlled node is modified due to the at least one contingency, the modified network representation being determined on the basis of the modified Thevenin equivalents, calculating voltage angles of the modified Thevenin equivalents, and evaluating the voltage angles to determine whether the network having at least one contingency admit a steady state. Also a method of providing information on a real time static security assessment of a power system is disclosed.

Подробнее
Номер записи: 37
26-01-2017 дата публикации

SYSTEM, METHOD, AND APPARATUS FOR ELECTRIC POWER GRID AND NETWORK MANAGEMENT OF GRID ELEMENTS

Номер: US20170025893A1
Автор: Forbes, JR. Joseph W.
Принадлежит: Causam Energy, Inc.

Systems, methods, and apparatus embodiments for electric power grid and network registration and management of active grid elements. Grid elements are transformed into active grid elements following initial registration of each grid element with the system, preferably through network-based communication between the grid elements and a coordinator, either in coordination with or outside of an IP-based communications network router. A multiplicity of active grid elements function in the grid for supply capacity, supply and/or load curtailment as supply or capacity. Also preferably, messaging is managed through a network by a Coordinator using IP messaging for communication with the grid elements, with the energy management system (EMS), and with the utilities, market participants, and/or grid operators. 1. A system for electric power grid element and network management , comprising:at least one grid element constructed and configured for Internet Protocol (IP)-based network communication with a server and at least one database via at least one coordinator;wherein the at least one grid element communicates an initial message to the at least one coordinator for registration with an electric power grid;wherein the at least one coordinator is operable to register and introduce the at least one grid element to the electric power grid;wherein the at least one grid element is automatically and/or autonomously transformed into at least one active grid element via registration with the electric power grid;wherein the at least one active grid element is operable to send messages to and receive messages from the server via the at least one coordinator;wherein the at least one coordinator is operable to route messages from the at least one active grid element to the at least one database; andwherein the server exchanges with the at least one database information associated with the at least one active grid element for affecting electric grid operations, reporting, and/or ...

Подробнее
Номер записи: 38
25-01-2018 дата публикации

Local demand side power management for electric utility networks

Номер: US20180026443A1
Автор: Grant Anthony Covic, John Talbot Boys, Joshua Reuben Lee
Принадлежит: Auckland Uniservices Ltd

A demand side electric power supply management system is disclosed. The system comprises an islanded power system having a point of coupling to a supply grid. The islanded power system supplies a plurality of electric loads, each of which is associated with a load controller to control the maximum power demanded by that load. A measuring means associated with the point of coupling measures the total power transfer between the grid and the islanded system, and a system controller monitors the measured power transfer relative to a set point and provides a control signal to a plurality of load controllers. Each load controller receives substantially the same control signal and determines the maximum power which the or each load associated with the load controller is allowed to draw from the islanded power system based on information contained in the control signal.

Подробнее
Номер записи: 39
25-01-2018 дата публикации

EFFICIENT AND ENERGY-SAVING POWER GRID OPERATION METHOD

Номер: US20180026447A1
Автор: GU WEIDONG
Принадлежит:

Efficient and energy-saving power-grid operation method, belonging to the technical field of power control, which includes steps of: calculating disposable electricity power for high-power consumption industrial users in the power-grid by a power-grid control center according to a predicted load value in a power-grid and rated output power of a power generation side in the power-grid, wherein the disposable electricity power is the difference between rated output power and predicted load value; performing electricity-consuming operations via high-power consumption industrial users according to the disposable electricity power. Converting high-power consumption industries into highly efficient industries, reducing operation cost of enterprises while realizing stable running of the power-grid. Improving the power-grid utilization rate ensuring high-load running of thermal and nuclear power-stations, avoiding increases in production cost of thermal and nuclear power enterprises by regulating loads, and ensures renewable resource of generated electricity can be completely incorporated into the power-grid to be used. 1. An efficient and energy-saving power grid operation method , comprises: a power grid control center calculates disposable electricity power for high power consumption industrial users in a power grid according to predicted load values in the power grid and the rated output power of a power generation side in the power grid , wherein the disposable electricity power is the difference between the rated output power and the predicted load values; the high energy consumption industrial users perform electricity-consumption operation according to the disposable electricity power.2. The efficient and energy-saving power grid operation method according to claim 1 , wherein low energy consumption industrial users in the power grid include residential users claim 1 , primary-industry users claim 1 , tertiary-industry users and conventional industrial users; the ...

Подробнее
Номер записи: 40
25-01-2018 дата публикации

AUDIT METHOD AND SYSTEM AND SUPPLY METHOD AND SYSTEM FOR PV POWER INJECTION AND CONSUMPTION IN A POWER GRID SYSTEM

Номер: US20180026478A1
Автор: Peloso Matthew
Принадлежит:

A method of supplying power in a power grid, a system supplying power in a power grid, a method of consolidating power injection and consumption in a power grid, a system for consolidating power injection and consumption in a power grid, a metering system for a power grid, and a metering method for a power grid. The method of supplying power in a power grid, the method comprises determining an initial forward probabilistic power supply time profile of an aggregate intermittent power source connected to the power grid; determining a target power demand time profile of at least one load connected to the power grid; and associating at least respective portions of the initial forward probabilistic power supply time profile and the target demand time profile such that a probability of supply of power from the intermittent power source to the load meets a specified criterion. 1. A method of supplying power in a power grid , the method comprising:determining an initial forward probabilistic power supply time profile of an aggregate intermittent power source connected to the power grid;determining a target power demand time profile of at least one load connected to the power grid; andassociating at least respective portions of the initial forward probabilistic power supply time profile and the target demand time profile such that a probability of supply of power from the intermittent power source to the load meets a specified criterion.2. The method as claimed in claim 1 , further comprising generating an updated forward probabilistic power supply profile based on the associated portion of the initial forward probabilistic power supply time profile being dedicated to the load.3. The method as claimed in claim 1 , further comprising outputting a forward probabilistic intermittent power supply contribution for the load based on the associated at least respective portions of the initial forward probabilistic power supply time profile and the target demand time profile.4. The ...

Подробнее
Номер записи: 41
23-01-2020 дата публикации

LOW-OBSERVABILITY MATRIX COMPLETION

Номер: US20200025810A1
Автор: BERNSTEIN Andrey, SCHMITT Andreas Joachim, ZHANG Yingchen
Принадлежит:

An example device includes at least one processor configured to receive electrical parameter values corresponding to at least one first location within a power network. The at least one processor is further configured to determine, using matrix completion and based on the at least one electrical parameter value, an estimated value of at least one unknown electrical parameter. The at least one unknown electrical parameter corresponds to a second location within the power network. The at least one processor is also configured to cause at least one device within the power network to modify operation based on the estimated value of the at least one unknown electrical parameter. 1. A device comprising: receive at least one electrical parameter value corresponding to at least one first location within a power network;', 'determine, using matrix completion, based on the at least one electrical parameter value, an estimated value of at least one unknown electrical parameter, wherein the at least one unknown electrical parameter corresponds to a second location within the power network; and', 'cause at least one device within the power network to modify operation based on the estimated value of the at least one unknown electrical parameter., 'at least one processor configured to2. The device of claim 1 , wherein determining the estimated value of the at least one unknown electrical parameter comprises solving an optimization problem comprising at least one constraint representation.3. The device of claim 2 , wherein the at least one constraint representation comprises at least one relaxed version of a constraint representation that is bounded by an error tolerance value.4. The device of claim 2 , wherein the at least one constraint representation represents at least one of:respective net real power flowing into and out of each location within the power network being zero; orrespective net reactive power flowing into and out of each location within the power network being ...

Подробнее
Номер записи: 42
23-01-2020 дата публикации

VOLTAGE ASSESSMENT PREDICTION SYSTEM FOR LOAD/GENERATION SHEDDING

Номер: US20200026337A1
Автор: Cai Niannian, Khatib Abdel Rahman
Принадлежит: SCHWEITZER ENGINEERING LABORATORIES, INC.

The present disclosure relates to systems and methods of predicting voltages for various contingencies. For example, a monitoring system may include a processor that acquires at least one contingency of an electric power delivery system. The processor may acquire an expected control action based on the at least one contingency from controllers/IEDs. The processor may predict a voltage of at least one bus of the electric power delivery system by simulating the change in the state of the electric power delivery system caused by the expected control action. The processor may determine that the voltage of the at least one bus is predicted to violate one or more operational settings of the electric power delivery system if the at least one contingency were to occur. The processor may provide an indication that the voltage violates the one or more operational settings on a display of the electronic device. 1. A non-transitory , computer readable medium comprising instructions that , when executed by a processor of an electronic device , cause the processor to:acquire at least one contingency of an electric power delivery system;predict a voltage of at least one bus of the electric power delivery system by simulating an occurrence of the at least one contingency;determine that the voltage of the at least one bus is predicted to violate one or more operational settings of the electric power delivery system if the at least one contingency were to occur; andprovide an indication that the voltage violates the one or more operational settings on a display of the electronic device.2. The non-transitory claim 1 , computer readable medium of claim 1 , comprising instructions that claim 1 , when executed by the processor claim 1 , cause the processor to predict a voltage of the at least one bus based on the generator active power mode claim 1 , a reactive power control mode claim 1 , or both.3. The non-transitory claim 1 , computer readable medium of claim 1 , comprising ...

Подробнее
Номер записи: 43
24-01-2019 дата публикации

Power Control Of A Microgrid

Номер: US20190027932A1
Автор: Majumder Ritwik, Marinopoulos Antonis, Saers Robert
Принадлежит: ABB Schweiz AG

A method for controlling power in a microgrid that includes power sources, loads and at least one connection to a main grid where a transformer is arranged to transfer electric power between the microgrid and the main grid is disclosed. The method includes: monitoring the power balance within the microgrid; monitoring the transformer, including monitoring the transformer temperature; and detecting a need for overloading the transformer based on the power balance within the microgrid. Especially, the method includes: determining a load profile for the transformer based on the power balance within the microgrid; determining a prognosis of the transformer temperature based on the load profile; and determining a schedule for power control of the microgrid, which determining of a schedule for power control includes analyzing the prognosis of the transformer temperature. 1. A method for controlling power in a microgrid , wherein the microgrid comprises power sources , loads and includes at least one connection to a main grid where a transformer is arranged to transfer electric power between the microgrid , and the main grid , said method includes:monitoring the power balance within the microgrid,monitoring the transformer, including monitoring the transformer temperature,detecting a need for overloading the transformer based on the power balance within the microgrid,Whereindetermining a load profile for the transformer based on the power balance within the microgrid,determining a prognosis of the transformer temperature based on the load profile,determining a schedule for power control of the microgrid, wherein the determining of a schedule for power control includes analyzing the prognosis of the transformer temperature.2. The method for controlling power in a microgrid according to claim 1 , further including:performing an optimization of the schedule for power control by repeatedly:determining an updated load profile for the transformer based on the schedule for power ...

Подробнее
Номер записи: 44
23-01-2020 дата публикации

System, method, and apparatus for settlement for participation in an electric power grid

Номер: US20200027175A1
Автор: Joseph W. Forbes, Jr.
Принадлежит: Causam Enterprises Inc

Systems, methods, and apparatus embodiments for electric power grid and network registration and management of physical and financial settlement for participation of active grid elements in supply and/or curtailment of power, wherein Internet Protocol (IP)-based messages including IP packets are generated by transforming raw data content into settlement grade content. Settlement is provided for grid elements that participate in the electric power grid following initial registration of each grid element with the system, preferably through network-based communication between the grid elements and a coordinator, either in coordination with or outside of an IP-based communications network router. Messaging related to settlement is managed through a network by a Coordinator using IP messaging for communication with the grid elements, with the energy management system (EMS), and with the utilities, market participants, and/or grid operators.

Подробнее
Номер записи: 45
23-01-2020 дата публикации

POWER SWITCHING DEVICE FOR AN ELECTRICAL POWER DISTRIBUTION SYSTEM, IN PARTICULAR FOR AN AIRCRAFT, WITH METERING OF THE CONSUMED ELECTRICAL POWER

Номер: US20200028361A1
Автор: Guenot Stéphane
Принадлежит:

A power switching device for an electrical power distribution system. The power switching device is configured for supplying an electrical load with power, having switching means and means for protecting the loads. The device includes current measurement means and voltage measurement means delivering current and voltage measurement signals to a driver stage of the device. The device includes processing means that are capable of formulating information relating to the electrical power consumed by the loads on the basis of the voltage and current measurement signals. 1. A power switching device for an electrical power distribution system , the power switching device being configured for supplying at least one electrical load with power , the power switching device comprising:switching means;means for protecting the at least one load;current measurement means;voltage measurement means delivering current and voltage measurement signals to a driver stage of the device, andprocessing means that are configured for formulating information relating to the electrical power consumed by the at least one load based on the voltage and current measurement signals.2. The device of claim 1 , further comprising means configured for formulating a RMS value of a current and a voltage delivered to the at least one load.3. The device of claim 1 , wherein the processing means include means for calculating a phase shift between the voltage and current.4. The device of claim 3 , comprising means for calculating a cosine of an angle of said phase shift.5. The device of claim 1 , wherein the processing means include means for calculating an active power consumed by the at least one load.6. The device of claim 1 , wherein the processing means include means for calculating a reactive power consumed by the at least one load.7. The device of claim 1 , wherein the processing means include means for driving the switching means based on a value of the measured voltage. The present application claims ...

Подробнее
Номер записи: 46
23-01-2020 дата публикации

SYSTEM AND METHOD FOR FLUCTUATING RENEWABLE ENERGY-BATTERY OPTIMIZATION TO IMPROVE BATTERY LIFE-TIME

Номер: US20200028363A1
Автор: Farrokhabadi Mostafa, MOMTAHAN Parham
Принадлежит: BluWave Inc.

A system and method for energy optimization is disclosed. The system may collect information from an information collector data including energy usage and storage data of at least one renewable energy generation system and battery energy storage system (BESS). The system may identify historical events that result in curtailment of renewable energy production, determine whether there is a curtailment of renewable energy production based at least on one historical event supervise the charge and discharge cycles of the at least one BESS; and ensuring that the diesel generators minimum up/down time is satisfied based on controlling at least one parameter of the BESS. 1. A system for energy optimization , the system comprising:a processor; receive information collector data from at least one information collector, the information collector data comprising energy usage and storage data of a renewable energy generation system that includes a battery energy storage system (BESS);', 'identify historical events that result in curtailment of renewable energy production;', 'determine whether there is a curtailment of renewable energy production of the renewable energy generation system based at least on the historical events;', 'supervise the charge and discharge cycles of the BESS;', 'operate a generator operably connected to the BESS based on the information collector data and historical events; and', 'ensure that a minimum up/down time of the generator is satisfied based on controlling at least one parameter of the BESS., 'a memory coupled to the processor, the memory storing computer-executable instructions that, when executed by the processing device, cause the system to2. The system of wherein the computer-executable instructions further cause the system to determine a model predictive control optimization function.4. The system of wherein the system is configured to operate in near real-time by operating using a predetermined time interval or less.5. The system of claim ...

Подробнее
Номер записи: 47
02-02-2017 дата публикации

SOLAR ENERGY METERING, COMMUNICATIONS, AND CONTROL SYSTEM

Номер: US20170030950A1
Автор: Fischer Kevin, Kavaiya Gaurang, Lenox Carl, Scrutchfield Donald, Uebel Udo
Принадлежит:

Methods, systems, and computer readable media are disclosed for monitoring photovoltaic solar systems. In some examples, the system includes a solar power measurement input for coupling to a solar panel system, a measurement circuit configured to measure power produced by the solar panel system using the solar power measurement input, and a data transmission system. The measurement circuit is configured, by virtue of the measurement circuit including electrical components rated to at least a certain tolerance level, to take revenue-grade power measurements from the solar power measurement input with a level of accuracy that meets a national or international metering standard. The data transmission system is configured to transmit the revenue-grade power measurements from the measurement circuit to a remote system. 1. A system comprising:a solar power measurement input for coupling to a solar panel system;a measurement circuit configured to measure power produced by the solar panel system using the solar power measurement input, wherein the measurement circuit is configured, by virtue of the measurement circuit comprising a plurality of electrical components rated to at least a certain tolerance level, to take a plurality of revenue-grade power measurements from the solar power measurement input with a level of accuracy that meets a national or international metering standard; anda data transmission system configured to transmit the revenue-grade power measurements from the measurement circuit to a remote system.2. The system of claim 1 , wherein the measurement circuit comprises a voltage measurement circuit and a current measurement circuit.3. The system of claim 2 , wherein the voltage measurement circuit comprises one or more scaling networks configured claim 2 , by virtue of one or more resistors and one or more buffering amplifiers claim 2 , to translate a line voltage from the measurement input to a signal at a lower voltage than the line voltage.4. The system ...

Подробнее
Номер записи: 48
01-02-2018 дата публикации

System, method, and apparatus for settlement for participation in an electric power grid

Номер: US20180033097A1
Автор: Forbes, JR. Joseph W.
Принадлежит: Causam Energy, Inc.

Systems and methods for market-based financial settlement in an electric power grid are disclosed. At least one active grid element is constructed and configured in network communication with a settlement processor. The at least one active grid element participates in the electric power grid by consuming power, supplying power, and/or curtailing power to provide operating reserves and/or grid stability for the electric power grid. The at least one active grid element generates at least one kilowatt packet (KWP) unit based upon measured data for the participation in the electric power grid. The at least one active grid element transmits at least one IP-based settlement message to the settlement processor. The settlement processor provides a market-based financial settlement for the participation of the at least one active grid element based on the at least one KWP unit in real time or near real time. 1. A method for market-based financial settlement in an electric power grid , comprising:at least one active grid element participating in the electric power grid by consuming power, supplying power, and/or curtailing power to provide operating reserves and/or grid stability for the electric power grid;the at least one active grid element generating at least one kilowatt packet (KWP) unit based upon measured data for the participation of the at least one active grid element in the electric power grid;the at least one active grid element transmitting at least one Internet Protocol (IP)-based settlement message to a settlement processor, wherein the at least one IP-based settlement message comprises the at least one KWP unit; andthe settlement processor providing a market-based financial settlement for the participation of the at least one active grid element based on the at least one KWP unit in real time or near real time.2. The method of claim 1 , further comprising calculating at least one power supply value (PSV) for the at least one active grid element based on power ...

Подробнее
Номер записи: 49
02-02-2017 дата публикации

Electricity distribution system and electricity distribution method

Номер: US20170033562A1
Автор: Yoshihito Ishibashi
Принадлежит: Sony Corp

An electricity distribution system includes an electricity supply control unit that receives information on power consumption, estimates the current and the future power consumption, and controls the supply of electricity to the electric device; an information display unit that displays information on a power use situation of an electric device electrically connected with the electricity supply control unit; and a battery server that accumulates power, in which the electricity supply control unit communicates the information on the power consumption with a new electric device when the new electric device is electrically connected, and when the amount of available power is exceeded by supplying electricity to the electric device, does not supply electricity to the electric device, makes the information display unit display that the amount of available power is exceeded by supplying electricity to the information display unit, and determines whether to use the power accumulated in the battery server.

Подробнее
Номер записи: 50
31-01-2019 дата публикации

SYSTEM AND METHOD FOR DYNAMICALLY DETERMINING MAXIMUM ELECTRIC CURRENT CARRYING CAPACITIES

Номер: US20190033350A1
Автор: BUHAGIAR Thierry
Принадлежит: RTE Reseau de transport d'electricite

This system () for dynamically determining maximum electric current carrying capacities comprises: means () for storing a model () of a network portion (), a thermal equilibrium relationship (), operating limit temperatures and conduction parameters; and a receiver () for wind speed values measured by wind measurement stations (). 1. A system for dynamically determining maximum electric current carrying capacities relative to a portion of a high-voltage electric current transmission network , comprising:means for storing a model of the network portion, this model comprising singular points and at least one high-voltage electric current-carrying line between these singular points, a predetermined thermal equilibrium relationship, an operating limit temperature of each current-carrying line and conduction parameters of each current-carrying line,a computer, having access to the storing means, programmed to calculate at least one maximum capacity value at each singular point of the model of the network portion on the basis of the predetermined thermal equilibrium relationship, of each operating limit temperature, of each conduction parameter and of weather parameters, select at least one wind measurement station in the set of wind measurement stations,', 'apply a model of wind propagation from said at least one selected station towards the singular points of the model of the network portion, in order to estimate a wind speed value at each singular point on the basis of the wind speed values received, and', 'calculate said at least one maximum capacity at each singular point taking into account said wind speed value estimated at each singular point in the predetermined thermal equilibrium relationship., 'characterized in that it further comprises means for receiving, by the computer, wind speed values measured by a set of wind measurement stations deployed around the network portion, and in that the computer is programmed to2. The system for dynamically determining ...

Подробнее
Номер записи: 51
01-02-2018 дата публикации

A METHOD AND A SYSTEM FOR CONTROLLING ENERGY SUPPLY TO A CLIENT

Номер: US20180034272A1
Автор: Schmidt Mischa, Schuelke Anett
Принадлежит:

A method for controlling energy supply to a client, wherein the client is connected to at least two energy utilities and/or energy grids for receiving energy for operating its energy systems, includes providing a demand request signal by at least one operation unit and/or by at least one of the at least two energy utilities and/or energy grids for requesting a demand modification with regard to at least one energy system of the client. A functional entity balances the energy supply to the client, so that a supply of energy from the at least two energy utilities or energy grids to the client is provided under consideration of the demand request signal or signals in a complementary way. 1. A method for controlling energy supply to a client , wherein the client is connected to at least two energy utilities and/or energy grids for receiving energy for operating its energy systems , the method comprising:providing a demand request signal by at least one operation unit and/or by at least one of the at least two energy utilities and/or energy grids for requesting a demand modification with regard to at least one energy system of the client,wherein a functional entity balances the energy supply to the client, so that a supply of energy from the at least two energy utilities or energy grids to the client is provided under consideration of the demand request signal or signals in a complementary way.2. A method according to claim 1 , wherein the at least two energy utilities and/or energy grids provide different energy forms.3. A method according to claim 1 , wherein an operation of the functional entity is in a situation where the supply of energy serves a same end-use purpose.4. A method according to claim 1 , wherein the functional entity balances the energy supply to the client under consideration of one or more constraints of one or more of the energy utilities and/or energy grids and/or operation units.5. A method according to claim 1 , wherein the functional entity ...

Подробнее
Номер записи: 52
01-02-2018 дата публикации

METHOD AND DEVICE FOR CONTROLLING DISTRIBUTED GENERATOR IN DISTRIBUTION SYSTEM

Номер: US20180034277A1
Автор: Chen Xin, Guo Qinglai, Sun Hongbin, Wang Bin, Wu Wenchuan, Zhang Boming
Принадлежит:

The present disclosure provides a method and a device for controlling a distributed generator in a distribution system. The method includes: extracting a first statistic feature of a load at each bus; extracting a second statistic feature of a distributed generator at each bus; establishing a probability distribution set of each first and second statistic feature; determining security constraints of the distribution system; obtaining a bilinear matrix inequality constraint by using a C-VaR approximation algorithm and a duality algorithm based on the probability distribution set and on the security constraints; determining an objective function to maximize a total installed capacity of the distributed generators; solving the objective function according to the bilinear matrix inequality constraint to obtain an installed capacity of each distributed generator; and controlling an access of each distributed generator according to the installed capacity. The method may take full use of statistic features and has higher practicability. 1. A method for controlling a distributed generator in a distribution system , wherein the distribution system comprises a plurality of buses , a plurality of feeder terminal units and a dispatching center; each feeder terminal unit is configured to monitor load data of each bus and to send the load data to the dispatching center , the dispatching center comprises one or more computing devices , and the method comprises:extracting, by the one or more computing devices, a first statistic feature of a load at each bus according to the load data;extracting, by the one or more computing devices, a second statistic feature of a distributed generator at each bus according to historical data;establishing, by the one or more computing devices, a probability distribution set of each first statistic feature and each second statistic feature;determining, by the one or more computing devices, one or more security constraints of the distribution system; ...

Подробнее
Номер записи: 53
01-02-2018 дата публикации

METHOD FOR CONTROLLING AN ELECTRIC POWER DISTRIBUTION GRID

Номер: US20180034318A1
Автор: Adinolfi Francesco, Fidigatti Antonio, Monachesi Fabio, Silvestro Federico
Принадлежит:

The invention relates to a method for controlling an electric power distribution grid, which comprises one or more first grid devices having changeable set-points. 2. The method claim 1 , according to claim 1 , wherein if said consumption forecast value (E) does not meet said first convergence criteria and the set-points of said first grid devices (CD claim 1 , . . . claim 1 , CD) have already been changed within said observation time window (T) claim 1 , said control procedure comprises the following steps:q{'sub': CFV', 'CTV, 'checking whether said consumption forecast value (E) meets second convergence criteria with respect to said consumption target value (E);'}{'sub': CFV', '1', 'N, 'if said consumption forecast value (E) meets said second convergence criteria, maintaining unchanged the set-points of said first grid devices (CD, . . . , CD);'}{'sub': 'CFV', 'claim-text': [{'sub': REQ', 'CTV, 'calculating a requested power variation value (ΔP) for said electric power distribution grid to reach said consumption target value (E);'}, {'sub': 1', 'N, 'calculating for one or more first grid devices (CD, . . . , CD), a characteristic curve on a ΔP-r reference system;'}, 'calculating, for said electric power distribution grid, a characteristic curve on said ΔP-r reference system;', 'calculating a priority level (λ) for said electric power distribution grid;', {'sub': 1', 'N, 'providing control signals (CON) to change the set-points of one or more first grid devices (CD, . . . , CD), said control signal comprising information indicative of the priority level (λ) calculated for said electric power distribution grid.'}], 'if said consumption forecast value (E) does not meet said second convergence criteria, executing the following steps3. The method claim 1 , according to claim 1 , wherein said step of checking whether said intervention criteria are met comprises the following steps:{'sub': HW', 'OW, 'checking whether the check instant (tc) is within an inhibition time ...

Подробнее
Номер записи: 54
30-01-2020 дата публикации

ACTIVE POWER DISTRIBUTION NETWORK MULTI-TIME SCALE COORDINATED OPTIMIZATION SCHEDULING METHOD AND STORAGE MEDIUM

Номер: US20200033933A1
Автор: Ai Minghao, Chen Naishi, Dong Lei, Ge Xianjun, Huang Renle, LI Ye, LI Zhihong, Pu Tianjiao, Qu Fumin, Wang Xiaohui, Yu Jiancheng, Zhao Liqiang
Принадлежит:

An active power distribution network multi-time scale coordinated optimization scheduling method and storage medium are provided. The method includes the following steps: performing long-time scale optimization scheduling of an active power distribution network; performing short-time scale rolling optimization scheduling on the basis of MPC of the active power distribution network according to an optimization result of the long-time scale optimization scheduling of the active power distribution network. By using a model prediction control method, taking the long-time scale optimization scheduling result as a reference, and performing short-time scale rolling correction, the optimization scheduling of the active power distribution network is achieved, thereby reducing unfavorable influences of prediction precision of a distributed power supply and a low-voltage load on the optimization scheduling. 1. A multi-time-scale coordinated optimization scheduling method for an active power distribution network , comprising the following steps:(1) performing long-time-scale optimization scheduling on the active power distribution network (1); and(2) performing Model Predictive Control (MPC)-based short-time-scale rolling optimization scheduling on the active power distribution network according to an optimization result of long-time-scale optimization scheduling of the active power distribution network.2. The method according to claim 1 , wherein Step (1) comprises:{'sub': k', 'load, '(1-1) acquiring a distributed power supply predicted value {circumflex over (P)}(t), load predicted value {circumflex over (P)}(t), adjustable energy storage capacity and adjustable flexible load capacity of the active power distribution network under a long time scale;'}(1-2) constructing a long-time-scale optimization scheduling model for the active power distribution network; and{'sub': stori', 'Lj, '(1-3) acquiring the optimization result of long-time-scale optimization scheduling of the ...

Подробнее
Номер записи: 55
31-01-2019 дата публикации

INTEGRATED DISTRIBUTION PLANNING SYSTEMS AND METHODS FOR ELECTRIC POWER SYSTEMS

Номер: US20190036339A1
Автор: Chadha Ken, Muneer Wajid, Omara Hisham, Rahimi-Kian Ashkan, Wong Joshua
Принадлежит: Opus One Solutions Energy Corp.

A multi-time frame distribution planning system which provides capacity planning and distributed energy resource planning is disclosed. In an embodiment, the system includes an interface for receiving electric power system input data for a plurality of data inputs including distributed energy resource data inputs and a data store including the electric power system input data. A computer processor coupled to the data store is programmed, upon receiving one or more commands, to use the electric power system input data to calculate at least one 3-phase AC power flow. The processor is further programmed to use the at least one 3-phase AC power flow to create at least one AC optimal power flow and use the AC optimal power flow to generate at least one potential scenario that includes distributed energy resources or hosting capacity for distributed energy resources. 1. A multi-time frame distribution planning system which provides capacity planning and distributed energy resource planning , comprising:interface for receiving electric power system input data for a plurality of data inputs including distributed energy resource data inputs;a data store including said electric power system input data; and i) use the electric power system input data to calculate at least one 3-phase AC power flow;', 'ii) use the at least one 3-phase AC power flow to create at least one AC optimal power flow;', 'iii) use the AC optimal power flow to generate at least one potential scenario that includes distributed energy resources or hosting capacity for distributed energy resources., 'a computer processor coupled to the data store and programmed, upon receiving one or more commands, to2. The multi-time frame distribution planning system according to claim 1 , wherein the processor is further programmed to utilize the electric power system input data to create at least one distribution system state estimation.3. The multi-time frame distribution planning system according to claim 1 , wherein ...

Подробнее
Номер записи: 56
31-01-2019 дата публикации

OPTIMAL CONTROL TECHNOLOGY FOR DISTRIBUTED ENERGY RESOURCES

Номер: US20190036340A1
Автор: Collins Emmanuel, Faruque MD Omar, Francis Griffin, Gupta Nikhil, Meeker Richard H., Newaz Alvi, Ospina Juan
Принадлежит:

Devcies and methods of allocating distributed energy resources (DERs) to loads connected to a microgrid based on the cost of the DERs are provided. The devices and methods may determine one or more microgrid measurements. The devices and methods may determine one or more real-time electricity prices associated with utility generation sources. The devices and methods may determine one or more forecasts. The devices and methods may determine a cost associated with one or more renewable energy sources within the microgrid. The devices and methods may determine an allocation of the renewable sources to one or more loads in the microgrid. 1. A method comprising:determining, by one or more computer processors coupled to at least one memory, one or more microgrid measurements;determining, by the one or more computer processors, one or more real-time electricity prices associated with utility generation sources;determining, by the one or more computer processors, one or more forecasts;determining, by the one or more computer processors, a cost associated with one or more renewable energy sources within the microgrid; anddetermining, by the one or more computer processors, an allocation of the renewable sources to one or more loads in the microgrid.2. The method of claim 1 , wherein the microgrid measurements include real power measurements and reactive power measurements.3. The method of claim 2 , wherein the microgrid measurements are measurements of the one or more renewable energy sources.4. The method of claim 1 , wherein the utility generation sources comprise coal fired plants claim 1 , natural gas plants claim 1 , wind farms claim 1 , solar photovoltaic (PV) plants claim 1 , hydroelectric plants claim 1 , or nuclear plants.5. The method of claim 4 , wherein the one or more forecasts comprise real power forecasts of the solar PV plants forecasts and load forecasts of power consumed by the one or more loads.6. The method of claim 1 , wherein the allocation of the ...

Подробнее
Номер записи: 57
30-01-2020 дата публикации

MANAGEMENT OF ENERGY DEMAND AND ENERGY EFFICIENCY SAVINGS FROM VOLTAGE OPTIMIZATION ON ELECTRIC POWER SYSTEMS USING AMI-BASED DATA ANALYSIS

Номер: US20200036189A1
Автор: Powell Phillip W., Tyler Stephen J.
Принадлежит:

A method, apparatus, system and computer program is provided for controlling an electric power system, including implementation of a voltage control and conservation (VCC) system used to optimally control the independent voltage and capacitor banks using a linear optimization methodology to minimize the losses in the EEDCS and the EUS. An energy validation process system (EVP) is provided which is used to document the savings of the VCC and an EPP is used to optimize improvements to the EEDCS for continuously improving the energy losses in the EEDS. The EVP system measures the improvement in the EEDS a result of operating the VCC system in the “ON” state determining the level of energy conservation achieved by the VCC system. 1. A method of controlling an electric power grid configured to supply electric power from a supply point to a plurality of consumption locations , the method comprising:receiving measurement data from at least one of a plurality of sensors, wherein each sensor is located at a respective one of a plurality of distribution locations on the electric power grid at or between the supply point and at least one of the plurality of consumption locations, and wherein each sensor is configured to sense at least one component of a supplied electric power received at the respective distribution location,searching one or more boundary conditions and determining at least one control point of at least one component adjusting device that minimizes at least one linear power loss model;adjusting a component adjusting device based on the at least one control point to adjust a component of the electric power grid.2. The method of claim 1 , wherein the at least one linear power loss model includes a power loss model from an upstream location to a downstream location.3. The method of claim 1 , wherein the at least one linear power loss model includes a power loss from an energy supply system to an energy usage system.4. The method of claim 1 , wherein the at least ...

Подробнее
Номер записи: 58
30-01-2020 дата публикации

System, method, and apparatus for electric power grid and network management of grid elements

Номер: US20200036224A1
Автор: Joseph W. Forbes, Jr.
Принадлежит: Causam Enterprises Inc

Systems, methods and apparatus for electric power grid element and network management are disclosed. At least one grid element constructed and configured for electrical connection and for internet protocol (IP)-based network communication with a server operatively coupled with a memory. The at least one grid element is automatically and/or autonomously transformed into at least one active grid element after automatically communicating an initial message to the server for registration. The at least one active grid element functions actively within the electric power grid. The at least one active grid element has a profile comprising an energy usage pattern or an energy supply pattern. The at least one active grid element sends and receives messages to and from the server.

Подробнее
Номер записи: 59
08-02-2018 дата публикации

Operation plan planning system for planning an operation plan of a power plant and operation plan planning method for planning an operation plan of a power plant

Номер: US20180040079A1
Автор: Atsushi Matsuo, Makoto Kishi, Seiji Goto, Yo Akiyama
Принадлежит: Mitsubishi Heavy Industries Ltd

A system for planning operation of a power plant capable of a first mode driving a power generator using a turbine and a second mode not driving the power generator using the turbine over a predetermined period. A determination unit determines whether a predicted power-selling price is higher than a power generation cost; and a planning unit calculates a loss index of the first and second modes in a case where the predicted selling price is equal to the generation cost or less within the predetermined period and formulates a plan to operate the power plant in a mode having a smaller loss index. The loss index of the first mode includes a power-selling loss that is a difference between the predicted selling price and the generation cost, and the loss index of the second mode includes a loss that is caused by not driving the power generator.

Подробнее
Номер записи: 60
08-02-2018 дата публикации

System, method, and apparatus for settlement for participation in an electric power grid

Номер: US20180040080A1
Автор: Joseph W. Forbes, Jr.
Принадлежит: Causam Energy Inc

Systems, methods, and apparatus embodiments for electric power grid and network registration and management of physical and financial settlement for participation of active grid elements in supply and/or curtailment of power. Settlement is provided for grid elements that participate in the electric power grid following initial registration of each grid element with the system, preferably through network-based communication between the grid elements and a coordinator, either in coordination with or outside of an IP-based communications network router. A multiplicity of active grid elements function in the grid for supply capacity, supply and/or load curtailment as supply or capacity, and are compensated through settlement for their functional participation in the electric power grid. Also, messaging related to settlement is managed through a network by a Coordinator using IP messaging for communication with the grid elements, with the energy management system (EMS), and with the utilities, market participants, and/or grid operators.

Подробнее
Номер записи: 61
08-02-2018 дата публикации

METHOD AND SYSTEM FOR FACILITATING OPTIMIZATION OF ENERGY IN A DISTRIBUTED ENVIRONMENT

Номер: US20180041032A1
Автор: Kumar Awadhesh, Paul Biswadip
Принадлежит:

Disclosed is a real-time decision support system for facilitating optimization of in a distributed environment. A data capturing module for capturing data from a plurality of data sources at a predefined interval of time. The data is captured pertaining to a specific domain and a specific geographical area. A forecasting module for forecasting demand of energy to be consumed by energy utilities in the specific domain and the geographical area upon analyzing the data. A position gap determination module for determining a position gap indicating a difference between the demand of energy and supply of energy. An energy optimization module for identifying at least one energy pool, from a plurality of energy pools, for retrieving a deficit of the demand of energy and providing the deficit of the demand of energy retrieved from the at least one energy pool in order to bridge the position gap. 1. A method for facilitating optimization of energy in a distributed environment , the method comprising:capturing, by a processor, data from a plurality of data sources at a predefined interval of time, wherein the data is captured pertaining to a specific domain and a specific geographical area, and wherein the plurality of data sources comprises digital data and non-digital data;forecasting, by the processor, demand of energy to be consumed by energy utilities in the specific domain and the geographical area upon analyzing the data, wherein the demand of energy is forecasted by using at least one forecasting technique;determining, by the processor, a position gap indicating a difference between the demand of energy and supply of energy, generated by a plurality of energy generation sources, for a predetermined time;identifying, by the processor, at least one energy pool, from a plurality of energy pools, for retrieving a deficit of the demand of energy in order to fulfill the demand of energy in the specific domain and the geographical area, wherein the at least one energy pool is ...

Подробнее
Номер записи: 62
06-02-2020 дата публикации

POWER NETWORK MANAGEMENT

Номер: US20200039377A1
Автор: Pettersson Bo
Принадлежит: HEXAGON TECHNOLOGY CENTER GMBH

A power network management system for managing distribution of electric energy to a multitude of power consumers by means of a power grid, the system comprising a plurality of software agents and a convergence unit. Each software agent is adapted to be connected to one of the power consumers and to exchange data with the power consumer, wherein each software agent is adapted to exchange data with the power consumer, and wherein the convergence unit is adapted to request and receive consumption-related data of the consumers, to estimate energy consumption needs of each of the consumers within a defined time period, to generate an optimized energy distribution plan for distributing available electric energy among the consumers, to generate consumption plan data for each of the consumers, and to provide the consumption plan data to the software agents of the consumers. 1. A power network management system for managing distribution of electric energy from a power network to a multitude of power consumers by means of a power grid , the power management system comprising: installable on a power consumer of the multitude of power consumers, or', 'installed on a communication module that is adapted to be connected to one of the power consumers and to exchange data with the power consumer,, 'a plurality of software agents and a convergence unit, each having a computing unit, a memory unit, and at least one machine-learning algorithm, wherein each software agent iswherein each software agent is adapted to exchange data with the power consumer it is installed on or connected to and with the convergence unit, and request and receive from the plurality of agents consumption-related data of the consumers, wherein the consumption-related data comprises at least information about a wattage, user settings, past energy consumption, or a consumption prognosis that are associated with the respective consumer,', 'estimate, based on the consumption-related data and using the at least one ...

Подробнее
Номер записи: 63
07-02-2019 дата публикации

Control of an electrical power network

Номер: US20190041815A1
Автор: Douglas Wilson, Kyriaki MALEKA, Oleg Bagleybter, Seán NORRIS
Принадлежит: Alstom Grid UK Ltd, UK Grid Solutions Ltd

A method of controlling an electrical power network in which a sudden event which may lead to loss or excess of generation or load. The electrical power network comprises plural controllers, each controller configured to control an apparatus connected to the power network at a different respective location in the electrical power network. The method comprises determining the occurrence of the sudden and receiving synchronised quantities in each of the controllers each of the quantities corresponding to one of frequency and angle at respective different locations in the electrical power network. The method further comprises generating a control output from each controllers in dependence on the received plural quantities, each control output controlling its respective apparatus, each controller generating the control output independent of operation of any other controller and on an ongoing basis in dependence on ongoing receipt of the plural quantities.

Подробнее
Номер записи: 64
07-02-2019 дата публикации

CONTROL SYSTEMS AND METHODS FOR ECONOMICAL OPTIMIZATION OF AN ELECTRICAL SYSTEM INCLUDING BATTERY DEGRADATION

Номер: US20190042992A1
Автор: Fife John Michael
Принадлежит:

The present disclosure is directed to systems and methods for economically optimal control of an electrical system. Some embodiments employ generalized multivariable constrained continuous optimization techniques to determine an optimal control sequence over a future time domain in the presence of any number of costs, savings opportunities (value streams), and constraints. Some embodiments also include control methods that enable infrequent recalculation of the optimal setpoints. Some embodiments may include a battery degradation model that, working in conjunction with the economic optimizer, enables the most economical use of any type of battery. Some embodiments include techniques for load and generation learning and prediction. Some embodiments include consideration of external data, such as weather. 1. A controller of an electrical system that includes a battery , the controller comprising:a communication interface to receive a current state of a battery of an electrical system; and determine battery degradation of the battery for a time period, based on the current state of the battery;', 'determine a battery degradation cost based on the battery degradation for the time period; and', 'control the electrical system via the communication interface to optimize operation of the electrical system, based on one or more cost elements associated with operation of the electrical system, the one or more cost elements including the battery degradation cost., 'one or more processors to2. The controller of claim 1 , wherein the one or more processors control the electrical system during an upcoming time domain that includes the time period.3. The controller of claim 1 , wherein the current state of the battery comprises a state of charge of the battery claim 1 ,4. The controller of claim 1 , wherein the one or more processors determine the battery degradation by:determining a throughput component of the battery degradation for the time period; anddetermining an aging ...

Подробнее
Номер записи: 65
06-02-2020 дата публикации

METHOD TO ACCELERATE THE PROCESSING OF MULTIPERIOD OPTIMAL POWER FLOW PROBLEMS

Номер: US20200042569A1
Автор: KOUROUNIS Drosos, SCHENK Olaf
Принадлежит:

A method is disclosed for optimizing the power flow in an electric power network including a plurality of buses interconnected by transmission lines, and locally connected to loads, generators, and storage devices, the method executing an interior point optimisation algorithm in a computer system to solve an optimal control problem, which is defined over a time period of interest T, and is associated with an objective function representing the total fuel consumption of the generators for the time period of interest T, wherein the objective function depends on a plurality of parameters of the network, such as bus voltages, generator, and storage device powers. the parameters of the network allowed to vary over a large number N of predefined time intervals, each of duration δt, obtained by subdivisions of the time period of interest T and is subject to network constraints. The time and memory required to achieve the solution to the optimal control problem is drastically reduced over general purpose NLP methods, due to exploitation in the calculations involved in the Schur complement algorithm of the repetition of constant in time block matrices of charging and discharging ratios of the storage devices inside off diagonal blocks in a reorder KKT system. 1. A method for optimizing the power flow in an electric power network , said electric power network including a plurality of buses interconnected by transmission lines , and locally connected to loads , generators , and storage devices ,the method executes an interior point optimisation algorithm in a computer system to solve an optimal control problem defined over a time period of interest T, where an objective function associated with said optimal control problem represents a total fuel consumption of the generators for said time period of interest T,said objective function depending on a plurality of parameters of said network, bus voltages, generator, and storage devices powers, said parameters of the network ...

Подробнее
Номер записи: 66
06-02-2020 дата публикации

CENTRAL PLANT WITH ASSET ALLOCATOR

Номер: US20200042918A1
Автор: Ellis Matthew J., Wenzel Michael J.
Принадлежит: Johnson Controls Technology Company

A controller for central plant equipment obtains a model of one or more sources configured to supply input resources, one or more subplants configured to convert the input resources to output resources, and one or more sinks configured to consume the output resources. The controller generates a resource balance constraint that requires balance between a first amount of each resource and a second amount of each resource. The first amount of each resource includes a sum of an amount of the resource supplied by the sources and an amount of the resource produced by the subplants. The second amount of each resource includes a sum of an amount of the resource consumed by the subplants and an amount of the resource consumed by the sinks. The controller performs an optimization of an objective function subject to the resource balance constraint to determine target amounts of each resource to be produced or consumed by the central plant equipment at a plurality of times within an optimization period. The controller controls the central plant equipment to produce or consume the target amounts of each resource at the plurality of times within the optimization period. 1. A controller for central plant equipment that operate to consume input resources from one or more utilities to produce output resources provided to a building or campus to serve energy loads of the building or campus , the controller comprising: obtaining a model comprising one or more sources configured to supply the input resources, one or more subplants configured to convert the input resources to the output resources, and one or more sinks configured to consume the output resources;', the first amount of each resource comprises a sum of an amount of the resource supplied by the sources and an amount of the resource produced by the subplants; and', 'the second amount of each resource comprises a sum of an amount of the resource consumed by the subplants and an amount of the resource consumed by the sinks;, ' ...

Подробнее
Номер записи: 67
06-02-2020 дата публикации

SYSTEMS AND METHODS FOR AGGREGATION AND INTEGRATION OF DISTRIBUTED GRID ELEMENTS INPUTS FOR PROVIDING AN INTERACTIVE ELECTRIC POWER GRID GEOGRAPHIC VISUALIZATION

Номер: US20200043285A1
Автор: Brockman Nathaniel Taylor, Forbes, JR. Joseph W.
Принадлежит: Causam Enterprises, Inc.

Systems and methods for aggregating and integrating distributed grid element inputs are disclosed. A data platform is provided for a distribution power grid. The data platform provides a crowd-sourced gaming system for identifying grid elements and determining dynamic electric power topology. The data platform also provides an interactive interface for displaying a view of a certain area with identified grid elements. The data platform communicatively connects to the identified grid elements, collects data from the identified grid elements, and manages the distribution power grid. 1. A system for aggregating and integrating distributed grid element inputs , comprising:a server platform constructed and configured for network communication with a power distribution grid and at least one user device;at least one grid element operable to electrically connect to the power distribution grid and operable to participate in the power distribution grid;wherein the server platform provides a map layer and a power system model of the power distribution grid via a dynamic graphical user interface (GUI);wherein the dynamic GUI is operable to display a multiplicity of electrical components of the power distribution grid and real-time data related to the multiplicity of electrical components on the map layer of the power distribution grid based on the power system model;wherein the server platform is operable to automatically integrate the at least one grid element into the power system model for the power distribution grid in real-time or near real-time, thereby creating an updated power system model; andwherein the server platform is operable to control the participation of the at least one grid element in the power distribution grid in real-time or near real-time based on the updated power system model, wherein the controlling the participation of the at least one grid element is automated.2. The system of claim 1 , wherein the server platform is operable to provide at least one ...

Подробнее
Номер записи: 68
07-02-2019 дата публикации

BROWN OUT PEAK PREDICTION AND CONTROL SYSTEM

Номер: US20190044328A1
Автор: AL-MOHSSEN HUSAIN, BASSA ANGELA S., PARADIS RICHARD R.
Принадлежит:

A method for predicting when energy consumption on a grid will exceed normal production capacity for buildings within the grid including generating data sets for each of the buildings, each set comprising energy consumption values along with corresponding time and outside temperature values, where the energy consumption values within each set are shifted by one of a plurality of lag values relative to the corresponding time and outside temperature values, and where each lag value is different; performing a non-linear parabolic analysis on each set to yield corresponding non-linear parabolic model parameters and a corresponding residual; determining a least valued residual indicating a corresponding energy lag for each of the buildings; using outside temperatures, non-linear parabolic model parameters, and energy lags for all of the buildings to estimate a cumulative energy consumption for the buildings, and to predict the time when energy consumption on the grid will exceed normal production capacity; and receiving the time when energy consumption on the grid will exceed normal production capacity, and preparing and commencing exceptional measures required to manage the energy consumption. 1. A system for predicting a time when energy consumption on a grid will exceed normal production capacity , the system comprising:a building lag optimizer, configured to receive identifiers for buildings, and configured to generate energy use data sets for each of said buildings, each of said energy use data sets comprising energy consumption values along with corresponding time and outside temperature values, wherein said energy consumption values within said each of said energy use data sets are shifted by one of a plurality of lag values relative to said corresponding time and outside temperature values, and wherein each of said plurality of lag values is different from other ones of said plurality of lag values, and configured to perform a non-linear parabolic analysis on ...

Подробнее
Номер записи: 69
07-02-2019 дата публикации

MECHANISM FOR GRID PEAK PREDICTION AND CONTROL

Номер: US20190044330A1
Автор: AL-MOHSSEN HUSAIN, BASSA ANGELA S., PARADIS RICHARD R.
Принадлежит:

A method for predicting when energy consumption on a grid will exceed normal production capacity for buildings within the grid including generating data sets for each of the buildings, each set comprising energy consumption values along with corresponding time and outside temperature values, where the energy consumption values within each set are shifted by one of a plurality of lag values relative to the corresponding time and outside temperature values, and where each lag value is different; performing a machine learning model analysis on each set to yield corresponding machine learning model model parameters and a corresponding residual; determining a least valued residual indicating a corresponding energy lag for each of the buildings; using outside temperatures, machine learning model model parameters, and energy lags for all of the buildings to estimate a cumulative energy consumption for the buildings, and to predict the time when energy consumption on the grid will exceed normal production capacity; and receiving the time when energy consumption on the grid will exceed normal production capacity, and preparing and commencing exceptional measures required to manage the energy consumption. 1. A system for predicting a time when energy consumption on a grid will exceed normal production capacity , the system comprising:a building lag optimizer, configured to receive identifiers for buildings, and configured to generate energy use data sets for each of said buildings, each of said energy use data sets comprising energy consumption values along with corresponding time and outside temperature values, wherein said energy consumption values within said each of said energy use data sets are shifted by one of a plurality of lag values relative to said corresponding time and outside temperature values, and wherein each of said plurality of lag values is different from other ones of said plurality of lag values, and configured to perform a machine learning model ...

Подробнее
Номер записи: 70
07-02-2019 дата публикации

GRID CONTROL APPARATUS AND METHOD

Номер: US20190044331A1
Автор: AL-MOHSSEN HUSAIN, BASSA ANGELA S., PARADIS RICHARD R.
Принадлежит:

A method for predicting when energy consumption on a grid will exceed normal production capacity for buildings within the grid including generating data sets for each of the buildings, each set comprising energy consumption values along with corresponding time and outside temperature values, where the energy consumption values within each set are shifted by one of a plurality of lag values relative to the corresponding time and outside temperature values, and where each lag value is different; performing a machine learning model analysis on each set to yield corresponding machine learning model model parameters and a corresponding residual; determining a least valued residual indicating a corresponding energy lag for each of the buildings; using outside temperatures, machine learning model model parameters, and energy lags for all of the buildings to estimate a cumulative energy consumption for the buildings, and to predict the time when energy consumption on the grid will exceed normal production capacity; and receiving the time when energy consumption on the grid will exceed normal production capacity, and preparing and commencing exceptional measures required to manage the energy consumption. 1. A system for predicting a time when energy consumption on a grid will exceed normal production capacity , the system comprising:baseline data stores, configured to store a plurality of baseline energy use data sets for buildings corresponding to the grid;a building lag optimizer, configured to receive identifiers for said buildings, and configured to retrieve said plurality of baseline energy use data sets from said baseline data stores for said buildings, and configured to generate energy use data sets for each of said buildings, each of said energy use data sets comprising energy consumption values along with corresponding time and outside temperature values, wherein said energy consumption values within said each of said energy use data sets are shifted by one of a ...

Подробнее
Номер записи: 71
07-02-2019 дата публикации

Grid Asset Manager

Номер: US20190044333A1
Автор: Chan Albert Tak Chun, Dahdah Jose Jamil Dunia, Martinez Jorge Elizondo, Morocz Bazzani Francisco A.
Принадлежит:

An asset manager controls power distribution within an aggregated distributed energy resources system (“DERs system”) having a plurality of assets. The asset manager is configured to operate with a given asset. As such, the asset manager has 1) an interface to receive asset information relating to the given asset and to communicate with another asset manager in the DERs system, and 2) a function generator configured to produce a local cost function using data relating to the given asset only. The local cost function represents a portion of a system cost function for the DERs system. The asset manager also has 3) a controller configured to use the local cost function for the given asset to manage operation of the given asset in the DERs system. In addition, the controller also is configured to determine, using the local cost function, an operating point for the given asset. 1. An asset manager configured to control distribution of power within an aggregated distributed energy resources system (“DERs system”) having a plurality of assets , the asset manager being configured to operate with a given asset in the DERs system , the asset manager comprising:an interface configured to receive asset information relating to the given asset and to communicate with at least one other asset manager or a central controller in the DERs system;a function generator operatively coupled with the interface, the function generator configured to produce a local cost function using data relating to the given asset only, the local cost function representing a portion of a system cost function for the overall DERs system; anda controller operatively coupled with the function generator, the controller configured to determine, using the local cost function, an operating point for the given asset,the controller also being configured to use the determined operating point for the given asset to manage operation of the given asset in the DERs system.2. The asset manager of wherein the interface ...

Подробнее
Номер записи: 72
07-02-2019 дата публикации

IMPROVEMENTS IN OR RELATING TO POWER SYSTEMS

Номер: US20190044339A1
Автор: FANG Shiming, HA Hengxu, SRI GOPALA KRISHNA MURTHI Sankara Subramanian
Принадлежит:

In the field of power system stability there is provided a method of predicting the presence of an out-of-step condition in a power system that includes a plurality of generators, the method including the steps of: 1. A method of predicting the presence of an out-of-step condition in a power system , the power system including a plurality of generators , the method including the steps of:{'sub': COI', 'k', 'COI, 'sup': k', 'k, '(a) obtaining a differential value (δ) between a rotor angle (δ) of an individual one of the plurality of generators and an equivalent rotor angle (δ) of the centre of inertia of the remainder of the plurality of generators;'}{'sub': COI', 'COI', 'threshold, 'sup': k', 'k, '(b) processing the differential value (δ) to determine whether the differential value (δ) is predicted to reach a predefined reference threshold (δ); and'}{'sub': COI', 'threshold, 'sup': 'k', '(c) predicting the presence of the out-of-step condition in the power system if the differential value (δ) is predicted to reach the predefined reference threshold (δ).'}2. A method according to wherein in step (a) the equivalent rotor angle (δ) of the centre of inertia of the remainder of the plurality of generators is obtained by calculating a rotor angle (δ) of the centre of inertia for the whole of the power system and deducing from this the said equivalent rotor angle (δ) by considering the rotor angle (δ) of the said individual generator.3. A method according to wherein the rotor angle (δ) of the centre of inertia of the whole power system is calculated by a central control unit and thereafter transmitted to a local control unit of each generator claim 2 , and each local control unit deduces from the calculated rotor angle (δ) of the centre of inertia of the whole power system the corresponding said equivalent rotor angle (δ).4. A method according to wherein the central control unit receives time-stamped data from each generator to permit calculation of the rotor angle (δ) of ...

Подробнее
Номер записи: 73
07-02-2019 дата публикации

SYSTEMS, APPARATUS, AND METHODS FOR LOAD SHARING BETWEEN ISOCHRONOUS GENERATORS AND BATTERY ENERGY STORAGE SYSTEMS IN ISLANDED MICROGRIDS

Номер: US20190044342A1
Автор: Ma Ye, Pande Shashank
Принадлежит:

Embodiments provide for controlling power production in an islanded microgrid system while maintaining the system frequency and implementing desired load sharing between different types of generating resources and energy storage systems. Embodiments include a controller in communication with the resources to control operation of the resources and operative to determine an optimal load balance based on load and renewable generation forecast information; transmit load and generation schedules to a generation controller that operates the resources in accordance with the schedules; calculate a frequency set point for energy storage resources in the microgrid based on the optimal load balance of the energy storage resources, droop settings, rated power, and the frequency of the energy storage resources; and to control the frequency set point of the energy storage resources to achieve the optimal load balance. Numerous additional aspects are disclosed. 1. A power distribution system comprising:a plurality of power generating and energy storage resources operating within a microgrid;a plurality of power consuming loads within the microgrid;a power transmission network coupling the resources to the loads; anda controller in communication with the resources and configured to control operation of the resources within the microgrid when the microgrid is islanded, wherein the controller is operative to:determine an optimal load balance between the plurality of generation assets and energy storage systems via a microgrid optimization module within the controller based on load and renewable generation forecast information;transmit load and generation schedules from the microgrid optimization module to a generation controller that operates the resources in accordance with the schedules;calculate a frequency set point for energy storage resources in the microgrid based on the optimal load balance of the energy storage resources, the energy storage resources' droop settings, the ...

Подробнее
Номер записи: 74
07-02-2019 дата публикации

Automatic Detection of Distributed Energy Resources System Parameters

Номер: US20190044378A1
Автор: Albert Tak Chun Chan, Francisco A. Morocz Bazzani, Jorge Elizondo Martinez
Принадлежит: Heila Technologies Inc

A method determines the topology of a DERs system having a plurality of assets, where at least one of the assets is a controllable asset. The method injects a power signal at a given frequency from a controllable asset into the DERs system. The voltage at each of the plurality of assets is measured, and the magnitude of perturbation of the voltage at the given frequency is determined for each of the plurality of assets. The method then constructs the topology of the DERs system as a function of the differences of the magnitude of perturbations of each of the plurality of assets.

Подробнее
Номер записи: 75
18-02-2021 дата публикации

MULTI-INPUT POWER CONVERSION AND ENERGY STORAGE

Номер: US20210050725A1
Автор: Baldwin Thomas, BRAINARD JAMES, Jensen Jonathan, LUANGRATH SEAN
Принадлежит: Inergy Holdings, LLC

Apparatuses, systems, and methods are presented for energy storage. A plurality of input connectors are configured to receive input power from one or more power sources. A plurality of input power converters are coupled to the input connectors, and are configured to convert the input power to direct current (DC) power for storage. A controller is configured to control power flow through the input power converters on a per-converter basis so that separate converters are separately controlled. One or more output power converters are configured to convert stored DC power to output power for use by one or more loads. The controller is configured to control power flow through the one or more output power converters. One or more output connectors are configured to transfer the output power to the one or more loads. 1. An apparatus comprising:a plurality of input connectors configured to receive input power from one or more power sources;a plurality of input power converters coupled to the input connectors, the input power converters configured to convert the input power to direct current (DC) power for storage;a controller configured to control power flow through the input power converters on a per-converter basis such that separate converters are separately controlled;one or more output power converters configured to convert stored DC power to output power for use by one or more loads, wherein the controller is configured to control power flow through the one or more output power converters; andone or more output connectors configured to transfer the output power to the one or more loads.2. The apparatus of claim 1 , wherein the controller is configured to control power flow based on a prioritization of power sources.3. The apparatus of claim 2 , wherein the prioritization is user-controlled.4. The apparatus of claim 1 , wherein the controller is configured to control power flow based on one or more parameters relating to the one or more power sources.5. The apparatus of ...

Подробнее
Номер записи: 76
06-02-2020 дата публикации

SYSTEM AND METHOD FOR MANAGEMENT OF AN ELECTRICITY DISTRIBUTION GRID

Номер: US20200044446A1
Автор: BADT Nir, EDELSTEIN Sergei, FINKEL Evgeny, SADOT Emek
Принадлежит: Foresight Energy Ltd.

Systems and methods of managing an electricity distribution grid, including receiving a layout of at least one electricity distribution grid coupled to at least one power distributor facility, each grid having at least two electrical power nodes, collecting data for at least one consumer of the electricity distribution grid, assigning a dynamic consumer value to each of the at least one consumer according to predefined attributes, determining aggregated power consumption values for each electrical power node, wherein for each electrical power node the aggregated power consumption values are received for all consumers assigned thereto, and allocating resources of the at least one power distributor facility, from the first electrical power node to the second electrical power node, if the difference between the compared consumer values exceeds a predetermined threshold. 1. A method of managing an electricity distribution grid , the method comprising:receiving a layout of at least one electricity distribution grid coupled to at least one power distributor facility, each grid having at least two electrical power nodes;collecting data for at least one consumer of the electricity distribution grid;assigning a dynamic consumer value to each of the at least one consumer according to predefined attributes;assigning each consumer of the at least one consumer to at least one electrical power node;determining aggregated power consumption values for each electrical power node, wherein for each electrical power node the aggregated power consumption values are received for all consumers assigned thereto;comparing aggregated consumer values for consumers corresponding to a first electrical power node to aggregated consumer values for consumers corresponding to a second electrical power node of the at least two electrical power nodes; andallocating resources of the at least one power distributor facility, from the first electrical power node to the second electrical power node, if ...

Подробнее
Номер записи: 77
06-02-2020 дата публикации

Energy Control And Storage System For Controlling Power Based On A Load Shape

Номер: US20200044447A1
Автор: James FRASHER, Nikolas RECHTIENE, Obadiah BARTHOLOMY
Принадлежит: Sacramento Municipal Utility District

An energy control and storage system includes an energy monitor, a power controller, an energy storage device, and a computing unit. The energy monitor monitors power provided between an electric distribution system and a load. The power controller exchanges power with the energy monitor and receives power from a power generation system. The energy storage device stores energy received through the power controller. The computing unit receives a load shape from outside the energy control and storage system. The computing unit controls power exchanged between the energy control and storage system and the electric distribution system based on power indicated by the load shape that changes in response to varying conditions affecting the electric distribution system.

Подробнее
Номер записи: 78
06-02-2020 дата публикации

METHOD AND APPARATUS FOR MONITORING THE CONDITION OF SUBSYSTEMS WITHIN A RENEWABLE GENERATION PLANT OR MICROGRID

Номер: US20200044449A1
Автор: APELDOORN Oscar, Eissa Mohamed, Lazarczyk Michal, Orkisz Michal, Ottewill James, Yu RongRong
Принадлежит:

The invention relates to a method and apparatus for monitoring the condition of subsystems within a renewable generation plant or microgrid which are using Supervisory Control and Data Acquisition (SCADA) systems for allowing plant operators to monitor and interact with a plant via human machine interfaces. 1. A method for monitoring the condition of subsystems within a renewable generation plant or microgrid , comprising the steps:acquiring historical data which has previously been measured by one or more field devices connected to a number of input output devices used as part of a Supervisory Control and Data Acquisition (SCADA) system of the plant or microgrid,removing unwanted data from the acquired historical data to obtain a cleaned historical SCADA,using the cleaned historical SCADA data to identify input-output data relations for each subsystem of the plant or microgrid, where an input-output data relation for a given subsystem is a list of all signals contained within the cleaned historical SCADA data which is considered as an input to the subsystem and a list of all signals contained within the cleaned historical SCADA data which is considered as an output to the same subsystem,selecting the combination of input-output data relations within the cleaned historical SCADA data which ensure that the availability of cleaned historical SCADA data for each input-output data relation exceeds a given threshold,training separate data-driven models for each subsystem of the plant or microgrid using the cleaned historical SCADA data, wherein each trained data-driven model is optimized to be able to estimate the outputs of the subsystem from the inputs to the subsystem, where the inputs and outputs to the subsystem are described by the input-output data relations,establish alarm thresholds for each trained data-driven model,acquiring new data from the one or more field devices connected to a number of input output devices used as part of a Supervisory Control and Data ...

Подробнее
Номер записи: 79
06-02-2020 дата публикации

BUILDING AUTOMATION SYSTEM

Номер: US20200044883A1
Автор: Casey Christopher, Casey Thar, Gerber Steve, LARSON Bradley, Rodriguez Harry, Telefus Mark
Принадлежит:

A building automation system that is comprised of a plurality of network connected electrical modules contained in standard receptacle gang boxes for outlets and switches is described. The system includes an AC to DC power supply, a bidirectional solid stale dimmer switch, a microprocessor, and, interconnected sensors that are powered and controlled by microprocessors within the electrical modules. The electrical modules include a user interface for programming and control. The system provides enhanced safety and security, power metering, power control, and home diagnostics. The apparatus replaces existing outlet receptacles and switches with a familiar flush but elegantly updated and seamlessly integrated faceplate. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. A building automation system comprising: i) an AC to DC converter that supplies power to a DC load, and,', 'ii) a solid state bidirectional switch having an input terminal connected to the AC source and an output terminal connected to the AC load, and,', 'iii) a microprocessor, having a wireless communication port, a user interface, and, programmed to control the solid state bidirectional switch, and,', 'iv) a sensor selected from at least one of a load identifying sensor and an electrical fault detection sensor, and,, 'a) a plurality of electrical modules that supply electrical power from an AC source with an applied AC voltage and applied AC current to an AC load, each of the electrical modules comprising i) voltage divider connected to the AC power source, and,', 'ii) a first semiconductor switch, having an input and an output, connected through its input to the voltage divider, and,', 'iii) a second semiconductor switch, having an input and an output, whose input is connected to the output of the first switch, and,', 'iv) a storage capacitor connected through a diode to the output of the second switch, and,', 'v) a sense resistor connected between the ...

Подробнее
Номер записи: 80
15-02-2018 дата публикации

DISTRIBUTED RESOURCE ELECTRICAL DEMAND FORECASTING SYSTEM AND METHOD

Номер: US20180048150A1
Автор: Frasher James
Принадлежит:

A method is disclosed to predict demand pricing events and forecast changes in price based on data collected from a distributed network of control systems and sensors. In one embodiment, the method uses a distributed network of systems and sensors to collect and monitor data that may be used to predict and preempt electrical grid demand events including black outs and brown outs. Through real-time analysis of data such as voltage, frequency, power, temperature from the distributed systems, and the condition of an electrical grid at a specific Sub-Load Aggregation Point (Sub-LAP) are modeled and determine the value of stored energy, energy generation, and load curtailment in advance of market signals. 1. A method of collecting and analyzing data from distributed resources to predict upcoming energy events on an electrical grid , the method comprising:collecting data from a network of distributed resources that includes control systems and sensors, the collected data stored in one or more memory devices;performing, using one or more processors, analysis on the collected data stored in the one or more memory devices;modelling electrical grid conditions at a sub-load aggregation point of the electrical grid;determining values of stored energy, energy generation, and load curtailment in advance of market signals using the modelled electrical grid conditions;predicting a demand pricing distribution event and forecasting a change in price, supply, or both; andexecuting a modification in electrical consumption that increases energy efficiency based on the predicted demand pricing distribution event.2. The method of claim 1 , wherein the collected data from the distributed network of control systems and/or sensors includes voltage data claim 1 , frequency data claim 1 , power data claim 1 , temperature data claim 1 , or combinations thereof.3. The method of claim 1 , wherein the analysis on the collected data is performed in real-time.4. The method of claim 1 , wherein the ...

Подробнее
Номер записи: 81
15-02-2018 дата публикации

Methods of Patel Loadflow Computation for Electrical Power System

Номер: US20180048151A1
Автор: Patel Sureshchandra B.
Принадлежит:

Propounding statement of Patel Numerical Method (PNM) for solution of simultaneous algebraic equations, both linear and non-linear, is presented. A new class of Patel Loadflow Methods are invented. These invented Patel Loadflow Methods are Patel Loadflow-1 (PL-1) PL-2, Patel Super Decoupled Loadflow-1 (PSDL-YY1), PSDL-YY2, Y-matrix based Patel Loadflow-1 (YPL-1), YPL-2, Z-matrix based Patel Loadflow, and Gauss-Seidel-Patel Loadflow (GSPL) that can also be developed into Decoupled GSPL-method. 13-. (canceled)49-. (canceled)134. The method as defined in claim , wherein forming and solving loadflow model of the power network referred to as Patel Super Decoupled Loadflow (PSDL-YY2) is derived from the Patel Numerical Method propounded by and comprising the following 5-statements:A. Organize linear or nonlinear equations as mismatch functions equated to zero.B. In each of the mismatch functions, club any term with known quantities or value into a diagonal term with simple algebraic manipulations.C. Express a vector of the mismatch functions as a product of a coefficient matrix and a vector of unknown variables, which can sometimes be treated as a correction vector of unknown variables.D. Equate the vector of mismatch functions to the product of the coefficient matrix and the vector of unknown variables or the correction vector of unknown variables to be calculated.E. Solve such a matrix equation by iterations for the vector of unknown variables or the correction vector of unknown variables using evaluation of the vector of mismatch functions with guess values of unknown variables to begin with, and inverting or factoring the coefficient matrix.145. The method as defined in claim , wherein forming and solving loadflow model of the power network referred to as Y-matrix based Patel Loadflow-2 (YPL-2) model is based on Patel Numerical Method propounded by and comprising the following 5-statements:A. Organize linear or nonlinear equations as mismatch functions equated to zero ...

Подробнее
Номер записи: 82
15-02-2018 дата публикации

TWO-LEVEL PREDICTIVE BASED REACTIVE POWER COORDINATION AND VOLTAGE RESTORATION FOR MICROGRIDS

Номер: US20180048154A1
Автор: Guo Feng, Sharma Ratnesh, Wang Siqi
Принадлежит:

A computer-implemented method for controlling voltage fluctuations of a microgrid including a plurality of distributed generators (DGs) is presented. The computer-implemented method includes collecting, by a resiliency controller, measurement data from the microgrid, using a model predictive control (MPC) module to distribute reactive power to each of the DGs of the microgrid, and using a droop based controller to guide operation of each of the DGs of the microgrid. 1. A computer-implemented method executed on a processor for controlling voltage fluctuations of a microgrid including a plurality of distributed generators (DGs) , the method comprising:collecting, by a resiliency controller, measurement data from the microgrid;using a model predictive control (MPC) module to distribute reactive power to each of the DGs of the microgrid; andusing a droop based controller to guide operation of each of the DGs of the microgrid.2. The method of claim 1 , wherein the resiliency controller includes at least a voltage control module claim 1 , a frequency control module claim 1 , and a mode switching module.3. The method of claim 2 , wherein the voltage control module is executed by a reactive power distribution algorithm for distributing the reactive power to each of the DGs of the microgrid.4. The method of claim 2 , wherein the frequency control module utilizes the droop based controller to regulate a microgrid frequency.5. The method of claim 2 , wherein the mode switching module controls microgrid operation status transition between grid-tied mode and islanded mode.6. The method of claim 1 , wherein the MPC module computes voltage sensitivity factors to estimate a relationship between reactive power change and voltage change for each of the DGs of the microgrid.7. The method of claim 6 , wherein a prediction model for each of the DGs of the microgrid is estimated to predict a behavior of an energy management system in communication with the microgrid via the resiliency ...

Подробнее
Номер записи: 83
14-02-2019 дата публикации

ISLANDING DETECTION IN AN ELECTRICAL POWER GRID

Номер: US20190049497A1
Автор: Al-Hokayem Peter, MASTELLONE Silvia, Raboni Pietro
Принадлежит:

A method for islanding detection in an electrical power grid supplied by an electrical power source. The method includes measuring an output voltage (V) and a grid current (I) at an interconnection point of the power source with the power grid; estimating at least one grid parameter from the output voltage (V) and the grid current (I) based on optimizing a cost function, which minimizes a difference between the measured output voltage (V) and an estimated output voltage or a difference between the measured grid current (I) and an estimated grid current, which estimated output voltage or estimated output current is a function of the measured grid current (I) or the measured output voltage (V) and the least one estimated grid parameter; and detecting an islanding condition by detecting a jump and/or a deviation in the at least one estimated grid parameter. 1. A method for islanding detection in an electrical power grid supplied by an electrical power source , the method comprising:{'sub': pcc', 'g, 'measuring an output voltage (V) and a grid current (I) at an interconnection point of the power source with the power grid;'}estimating the output voltage or the grid current;{'sub': g', 'g', 'g', 'g', 'pcc', 'g', 'g', 'pcc, 'estimating at least one grid parameter (|V|, Ph(V), R, L), based on optimizing a cost function, which minimizes a difference between the measured output voltage (V) and the estimated output voltage or a difference between the measured grid current (I) and the estimated grid current, wherein the estimated output voltage or estimated grid current is a function of the measured grid current (I) or the measured output voltage (V) and the at least one estimated grid parameter;'}detecting an islanding condition by detecting a jump and/or a deviation from a previous average value in the least one estimated grid parameter.2. The method of claim 1 ,{'sub': g', 'g', 'g', 'g, 'wherein the at least one grid parameter comprises a voltage amplitude (|V|), a grid ...

Подробнее
Номер записи: 84
25-02-2021 дата публикации

HYBRID MACHINE LEARNING AND SIMULATION BASED SYSTEM FOR FORECASTING IN ELECTRICITY SYSTEMS

Номер: US20210055700A1
Автор: Martins Eric Perim, Sindoni Lorenzo, Ududec Cozmin
Принадлежит:

A hybrid machine-learning and simulation-based system provides forecasting for an energy system. The system predicts day-ahead and real-time supply and demand, and prices of energy, and generates inputs to an optimization algorithm performed by an Independent System Operator (ISO) that affects behavior of electricity generators and electricity consumers to improve the economic efficiency of electricity grids, and reduce harmful emissions. 1. A method for generating a control input to improve efficiency of an electrical power grid , the method comprising:obtaining a plurality of models for modeling historical data associated with the operation of the electrical power grid;generating, based on the plurality of models, a plurality of input probability distributions representing predicted inputs to a complex system optimization executed by an Independent System Operator (ISO) for scheduling power production and transmission across the electrical power grid according to day-ahead and real-time schedules;simulating execution of the complex system optimization for each of the multiple input probability distributions to generate respective output probability distributions of predicted deltas between the day-ahead and real-time schedules as predicted to be determined by the ISO;determining a control input for submission to the ISO representing nodal corrections to supply and demand that maximize scheduling efficiency based on the probability distributions of the predicted deltas; andsubmitting the control input to the optimization system of the ISO, wherein the ISO controls production schedules of generators in the electric grid based in part on the control input.2. The method of claim 1 , wherein generating the plurality of input probability distributions comprises:performing a conversion of the plurality of models to a set of executable instructions;translating the set of executable instructions to a set of computation graphs; andexecuting the set of computation graphs to ...

Подробнее
Номер записи: 85
25-02-2021 дата публикации

Building system with probabilistic forecasting using a recurrent neural network sequence to sequence model

Номер: US20210056452A1
Автор: Sugumar Murugesan, Young M. Lee
Принадлежит: Johnson Controls Technology Co

A building system for building data point prediction, the building system comprising one or more memory devices configured to store instructions, that, when executed by one or more processors, cause the one or more processors to receive first building data for a building data point of a building and generate training data, the training data comprising a probability distribution sequence comprising a first probability distribution for the building data point. The instructions cause the one or more processors to train a prediction model based on the training data, receive second building data for the building data point, and predict, for one or more time-steps into the future, one or more second probability distributions with the second building data based on the prediction model, each of the one or more second probability distributions being a probability distribution for the building data point at one of the one or more time-steps.

Подробнее
Номер записи: 86
13-02-2020 дата публикации

Dynamic energy consumption and harvesting with feedback

Номер: US20200051182A1
Автор: Jeremy R. Fox, Jonathan Dunne, Kelley Anders, Liam S. Harpur
Принадлежит: International Business Machines Corp

According to embodiments of the present invention, techniques are provided for producing energy from one or more energy production sources. Energy consumption and energy production sources for an entity in a geographic location are analyzed. Sensor data based on the analysis of the entity is collected, wherein the sensor data includes crowdsourced sensor data. A model is generated based on the collected sensor data and the analysis of the entity, wherein the model includes optimization criteria for energy production. The model is utilized to determine an energy production source and energy production for the entity. Occurrence of a triggering event is detected, and the energy production source is adjusted based on the detected triggering event. The model is updated based on newly collected sensor data.

Подробнее
Номер записи: 87
14-02-2019 дата публикации

POWER PLANT RAMP RATE CONTROL

Номер: US20190052088A1
Автор: HUOTARI Mikko, Johansson Nicklas, Tengner Tomas
Принадлежит: ABB Schweiz AG

A method for controlling plant active power output ramp rate of a power plant to a PCC with a power grid includes obtaining information about a current RES active power output of a Renewable Energy Source (RES) in the power plant. The method also includes forecasting future RES active power output, during a predefined future time period. The method also includes, based on the obtained current RES active power output information and on the forecasted RES active power output, determining whether an expected ramp rate of the RES active power output during the predefined time period exceeds a predefined maximum ramp rate limit of a plant active power output. The method also includes, based on the determining, selecting a first control method which is based on the forecasted future RES active power output if it is determined that the expected ramp rate exceeds the predefined maximum ramp rate limit, or selecting a second control method, different from the first control method, if it is determined that the expected ramp rate does not exceed the predefined maximum ramp rate limit. The method also includes using the selected first or second control method to generate an ESS control signal for controlling the ESS active power output Psuch that the plant active power output ramp rate is kept below the predefined maximum ramp rate limit during the predefined time period. 111.-. (canceled)12. A method for controlling plant active power output ramp rate of a power plant to a Point of Common Coupling , PCC , with a power grid , the method comprising:obtaining information about a current RES active power output of a Renewable Energy Source, RES, comprised in the power plant;forecasting future RES active power output, during a predefined future time period, based on input signals from a meteorological sensor;based on the obtained current RES active power output information and on the forecasted RES active power output, determining whether an expected ramp rate of the RES active ...

Подробнее
Номер записи: 88
14-02-2019 дата публикации

SMART BATTERY CIRCUIT

Номер: US20190052119A1
Автор: Boecker Moritz, Hendrix Austin, Somers Robert Edward
Принадлежит:

An electrical system may include a power circuit configured to provide a power output, first and second batteries, and first and second switches configured to connect and disconnect the first and second batteries, respectively, to the power output in parallel with one another. The electrical system may also include a controller electrically connected to the first and the second switches, and configured to control operation of the first switch and/or the second switch. The electrical system may also include a load predictor in communication with the controller and configured to predict power demands of an electric load on the power circuit and send a signal indicative of the predicted power demands to the controller, which may activate the first switch and/or the second switch to connect the first battery and/or the second battery to the power output based at least in part on the signal indicative of the predicted load. 1. An electrical system configured to supply electric power to an electric load , the electrical system comprising:a power circuit configured to provide a power output;a first battery electrically connectable to the power output of the power circuit;a first switch configured to selectively electrically connect the first battery to, and disconnect the first battery from, the power output of the power circuit;a second battery electrically connectable to the power output of the power circuit; anda second switch configured to selectively electrically connect the second battery to, and disconnect the second battery from, the power output of the power circuit;an electric load connected to the power output of the power circuit such that at least one of the first battery or the second battery supplies power to the electric load;a controller electrically connected to the first switch and the second switch, the controller being configured to control operation of at least one of the first switch or the second switch, such that when the first switch and the ...

Подробнее
Номер записи: 89
13-02-2020 дата публикации

Off-Grid Electrical Power System

Номер: US20200052491A1
Автор: Silva William Grant
Принадлежит:

Various implementations power homes and businesses without needing to connect to electric utility company-provided power, i.e., they can operate off-grid. Generally the systems includes solar panel racks (e.g., photovoltaic cells on sheets stabilized using ballasts, anchors, or mounting) that generate electrical power used to provide power to a building or that is stored on batteries. The system includes the solar panel racks and an enclosure to be installed at the premises and separate from the building. The enclosure includes the batteries and inverters that are electronically connected to the solar panel racks and batteries. The inverters are configured to convert direct current (DC) electricity from the solar power racks and batteries to alternating current (AC) electricity to provide power to the building via wires electrically connecting the inverters to the main panel of the building. 1. A system for providing electricity to a building , the system comprising:one or more solar panel racks of photovoltaic cells installed on a premises of the building and separate from the building; one or more batteries electrically configured to store energy;', 'one or more inverters electronically connected to the one or more solar panel racks and the one or more batteries and configured to convert direct current (DC) current electricity from the one or more solar panel racks and the one or more batteries to alternating current (AC) electricity; and', 'one or more electrical wires electrically connecting the one or more inverters to a main panel of the building, wherein the main panel is configured to receive the AC electricity from the one or more inverters and provide the received AC electricity to power the building., 'an enclosure installed at the premises and separate from the building, wherein the enclosure at least partially encloses2. The system of claim 1 , wherein the main panel is not connected to any other electricity source.3. The system of further comprising a ...

Подробнее
Номер записи: 90
13-02-2020 дата публикации

SYSTEM AND METHOD FOR ESTIMATING AND PROVIDING DISPATCHABLE OPERATING RESERVE ENERGY CAPACITY THROUGH USE OF ACTIVE LOAD MANAGEMENT

Номер: US20200052523A1
Автор: Forbes, JR. Joseph W.
Принадлежит: Causam Enterprises, Inc.

Systems for providing operating reserves to an electric power grid are disclosed. In one embodiment, a system comprises at least one power consuming device, at least one controllable device, and a client device constructed and configured in network communication. The at least one controllable device is operably coupled to the at least one power consuming device. The at least one controllable device is operable to control a power flow from the electric power grid to the at least one power consuming device responsive to power control instructions from the client device. Each of the at least one power consuming device has an actual value of power reduced and/or to be reduced based on revenue grade metrology, and confirmed by measurement and verification. The actual value of power reduced and/or to be reduced is a curtailment value as supply equivalence and provides operating reserve for the electric power grid. 120-. (canceled)21. A system for managing power on an electric power grid , comprising:at least one power consuming device and at least one controllable device constructed and configured for network communication;wherein the at least one controllable device is operably coupled to the at least one power consuming device;wherein the at least one controllable device is operable to control a power flow from the electric power grid to the at least one power consuming device responsive to power control instructions;wherein the at least one power consuming device has a value of power reduced based on revenue grade metrology, and confirmed by measurement and verification; andwherein the value of power reduced provides operating reserve for the electric power grid.22. The system of claim 21 , further comprising a remote system control component claim 21 , and wherein the remote system control component is operable for aggregating the value of power reduced and/or to be reduced from each of the at least one power consuming device.23. The system of claim 22 , wherein the ...

Подробнее
Номер записи: 91
21-02-2019 дата публикации

ELECTRIC POWER CONTROL APPARATUS, ELECTRIC POWER CONTROL METHOD, AND PROGRAM

Номер: US20190058330A1
Автор: KIMURA Hidekazu, Kobayashi Noriaki
Принадлежит: NEC Corporation

An electric power control apparatus () includes an electric power procurement information deciding unit () that decides electric power procurement information using a predicted electric power generation output of an electric power generating apparatus and control instruction information which includes a period in which an output of the electric power generating apparatus is controlled and an upper limit output value thereof, the electric power procurement information indicating procured electric power or an amount of procured electric power acquired from a difference between the predicted electric power generation output during the period and the upper limit output value, a desired purchase information collecting unit () that transmits sales information related to the procured electric power or the amount of procured electric power in the electric power procurement information to a terminal of a consumer, and collects desired purchase information indicating desired electric power for purchase or a desired amount of electric power for purchase with respect to the procured electric power or the amount of procured electric power in the electric power procurement information, and a comparison data output unit () that outputs comparison data for comparing the electric power procurement information with the desired purchase information. 1. An electric power control apparatus comprising:a memory storing instructions; anda processor configured to execute the instructions to:decide electric power procurement information using a predicted electric power generation output of an electric power generating apparatus and control instruction information which includes a period in which an output of the electric power generating apparatus is controlled and an upper limit output value thereof, the electric power procurement information indicating procured electric power or an amount of procured electric power acquired from a difference between the predicted electric power generation ...

Подробнее
Номер записи: 92
02-03-2017 дата публикации

MANAGING TIME-SUBSTITUTABLE ELECTRICITY USAGE USING DYNAMIC CONTROLS

Номер: US20170060109A1
Автор: Ghosh Soumyadip, Hosking Jonathan R., Natarajan Ramesh, SUBRAMANIAM Shivaram, ZHANG Xiaoxuan
Принадлежит:

A predictive-control approach allows an electricity provider to monitor and proactively manage peak and off-peak residential intra-day electricity usage in an emerging smart energy grid using time-dependent dynamic pricing incentives. The daily load is modeled as time-shifted, but cost-differentiated and substitutable, copies of the continuously-consumed electricity resource, and a consumer-choice prediction model is constructed to forecast the corresponding intra-day shares of total daily load according to this model. This is embedded within an optimization framework for managing the daily electricity usage. A series of transformations are employed, including the reformulation-linearization technique (RLT) to obtain a Mixed-Integer Programming (MIP) model representation of the resulting nonlinear optimization problem. In addition, various regulatory and pricing constraints are incorporated in conjunction with the specified profit and capacity utilization objectives. 115-. (canceled)16. A method for regulating and modifying intra-day electrical load , the method comprising the steps of:predicting a day-ahead load profile comprising a predicted fraction of total daily usage in each one of a plurality of time periods; andadjusting time-of-day consumer price incentive values within a predefined range from a baseline price to minimize a deviation of the predicted day-ahead load profile from a desired load profile across the plurality of time periods.17. The method of claim 16 , wherein the method further comprises calculating the predicted fraction of total daily usage in each one of the plurality of time periods as a ratio of a value of a variable comprising a function of a measure of customer utility for a given time period to a sum of values of the variable for all time periods.18. The method of claim 17 , wherein:the variable comprises an exponential function of the measure of customer utility; andthe measure of customer utility comprises a function of at least one ...

Подробнее
Номер записи: 93
04-03-2021 дата публикации

Building control system with load curtailment optimization

Номер: US20210063976A1
Автор: Andrew J. Przybylski, John H. Burroughs, Michael J. Wenzel
Принадлежит: Johnson Controls Technology Co

A system controlling equipment to serve energy loads of a building includes a cost function generator configured to obtain a cost function of decision variables representing an amount of resources consumed or produced by the equipment, an optimizer configured to perform a first optimization of the cost function subject to a first set of constraints defining first values of constraint variables to generate a first result defining first values of decision variables, a constraint modifier configured determine a cost gradient, recommend changes to constraint variables, and modify constraint variables to modified values in response to changes. The optimizer is configured to perform an optimization of the cost function subject to a second set of constraints to generate a second optimization result defining second values of the decision variables. The system includes a controller that operates equipment to consume or produce resources defined by second values of the decision variables.

Подробнее
Номер записи: 94
01-03-2018 дата публикации

System, method, and apparatus for settlement for participation in an electric power grid

Номер: US20180060978A1
Автор: Forbes, JR. Joseph W.
Принадлежит: Causam Energy, Inc.

Systems and methods for market-based financial settlement in an electric power grid are disclosed. A settlement processor is constructed and configured for IP-based communication with at least one active grid element via at least one coordinator. The at least one active grid element is registered with the at least one coordinator to participate within the electric power grid. The at least one coordinator tracks the at least one active grid element in the electric power grid. The at least one active grid element transmits at least one IP-based settlement message to the settlement processor via the at least one coordinator. The at least one IP-based settlement message comprises at least one kilowatt packet (KWP) unit, and the at least one KWP unit is based on measurement data for a participation of the at least one active grid element in the electric power grid. The settlement processor provides a market-based financial settlement for the participation of the at least one active grid element based on the at least one KWP unit in real time or near real time. 1. A system for market-based financial settlement in an electric power grid , comprising:a settlement processor; at least one coordinator; and at least one active grid element;wherein the settlement processor is constructed and configured for Internet Protocol (IP)-based communication with the at least one active grid element via the at least one coordinator;wherein the at least one active grid element is registered with the at least one coordinator to participate within the electric power grid;wherein the at least one coordinator is operable to track the at least one active grid element in the electric power grid;wherein the at least one active grid element is configured to transmit at least one IP-based settlement message to the settlement processor via the at least one coordinator;wherein the at least one IP-based settlement message comprises at least one kilowatt packet (KWP) unit;wherein the at least one KWP ...

Подробнее
Номер записи: 95
20-02-2020 дата публикации

DYNAMIC THUNDER AND LIGHTNING PROTECTION METHOD AND SYSTEM

Номер: US20200059093A1
Автор: CAI Yunfeng, Dai Kang, TONG Chong, Wang Qing, YIN Wei, Zhang Ziyang
Принадлежит:

Disclosed are a dynamic lightning protection method and system. The method includes detecting lightning in real time and tracking a position of a thunderstorm; and performing dynamic lightning protection and control on an electrical grid according to an electrical grid control strategy before the thunderstorm reaches or affects the electrical grid. Further disclosed is a dynamic lightning protection system. 1. A dynamic lightning protection method , comprising:detecting lightning in real time and tracking a position of a thunderstorm; andperforming dynamic lightning protection and control on an electrical grid according to an electrical grid control strategy before the thunderstorm reaches or affects the electrical grid;wherein the electrical grid control strategy comprises at least one of the following:optimizing an operation mode of the electrical grid to change a power flow path of the electrical grid to prevent power flows of the electrical grid from passing through a lightning-threatened area;adjusting power flows of the electrical grid to reduce power flows on a power transmission path in the lightning-threatened area and increase power flows on a power transmission path in a safe area; ornon-linearly controlling a generator/power generation unit and dynamically controlling a power source to control a power flow output of the electrical grid and increase a power output in the safe area.2. The dynamic lightning protection method of claim 1 , further comprising: before performing the dynamic lightning protection and control on the electrical grid claim 1 , determining a stability of the electrical grid for the electrical grid control strategy.3. The dynamic lightning protection method of claim 2 , wherein the determining the stability of the electrical grid for the electrical grid control strategy comprises: determining through a wide-area state estimation and a stability boundary calculation whether the electrical grid is stable after the electrical grid is ...

Подробнее
Номер записи: 96
20-02-2020 дата публикации

Building and Building Cluster Energy Management and Optimization System and Method

Номер: US20200059098A1
Автор: Dong Bing, Li Zhaoxuan, Xu Jeff Qiang
Принадлежит: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM

Disclosed are various embodiments for optimizing energy management. A quantity of renewable power that will be generated by renewable energy generation sources can be forecasted. The energy demand for a building or a cluster of buildings can be forecasted. A pricing model for buying energy from a grid can be determined. A quantity of energy to import from the grid or export to the grid can be scheduled based on the quantity of renewable energy forecasted and the state of charge or health of battery energy storage system, current and future operations of building HVAC, lighting and plug loads system, the forecasted energy demand for the building, and the pricing of the energy from the grid. 1. A system comprising:a data store; and forecast a quantity of renewable power from a plurality of renewable energy generation sources;', 'forecast an energy demand for at least one building;', 'determine pricing for energy on a grid; and', 'schedule a quantity of energy to import to the grid or export from the grid based at least in part on the forecasted quantity of renewable power, the forecasted energy demand, and the real-time pricing for energy on the grid., 'at least one computing device in communication with the data store, the at least one computing device configured to at least2. The system of claim 1 , wherein the at least one computing device is configured to at least determine at least one weather forecast for at least one local area corresponding to at least one of the plurality of renewable energy generation sources claim 1 , wherein the forecasted quantity of renewable power is based at least in part on the at least one weather forecast.3. The system of claim 1 , wherein the at least one computing device is configured to at least determine at least one weather forecast for at least one local area corresponding to the at least one building claim 1 , wherein the forecasted energy demand is based at least in part on the at least one weather forecast.4. The system of ...

Подробнее
Номер записи: 97
20-02-2020 дата публикации

METHOD, APPARATUS, AND MEDIUM FOR CALCULATING CAPACITIES OF PHOTOVOLTAIC POWER STATIONS

Номер: US20200059101A1
Автор: GAO Xiaohai, GAO Xiaonan, JIA Shanjie, Li Bo, Li Xueliang, Liu Dong, Liu Xiaoming, MOU Hong, MOU Ying, Tian Xin, Wang Yan, Wang Yuan, Wei Jia, Wei Xin, Wu Jian, Zhang Jian, Zhang Jianing, Zhang Jie, Zhang Ning, ZHAO LONG, ZHENG Zhijie, ZHU Yi
Принадлежит:

The present disclosure provides a method, an apparatus, and a medium for calculating capacities of a plurality of photovoltaic power stations. The method includes: receiving a plurality of historical weather data sets from the plurality of weather monitoring stations; determining a scene year based on the plurality of historical weather data sets; receiving an actual generating capacity of each photovoltaic power station predicted by a power system dispatch center; extracting weather data of each photovoltaic power station in the scene year from the corresponding historical weather data set; obtaining an available generating capacity of each photovoltaic power station in the scene year based on the weather data; and determining a capacity of each photovoltaic power station in the scene year according to the actual generating capacity and the available generating capacity of each photovoltaic power station. 1. A method for calculating capacities of a plurality of photovoltaic power stations , wherein the plurality of photovoltaic power stations correspond to a plurality of weather monitoring stations , each photovoltaic power station in the plurality of photovoltaic power stations has a one-to-one correspondence with each weather monitoring station in the plurality of weather monitoring stations , the method comprises:receiving a plurality of historical weather data sets from the plurality of weather monitoring stations, each historical weather data set in the plurality of historical weather data sets having a one-to-one correspondence with each photovoltaic power station in the plurality of photovoltaic power stations;determining a scene year based on the plurality of historical weather data sets;receiving an actual generating capacity of each photovoltaic power station in the plurality of photovoltaic power stations predicted by a power system dispatch center;extracting weather data of each photovoltaic power station in the plurality of photovoltaic power stations ...

Подробнее
Номер записи: 98
01-03-2018 дата публикации

DYNAMIC HYBRID CONTROL

Номер: US20180062388A1
Автор: JENSSEN Nils Albert, Johannessen Petter Faugstad, Jørgensen Ole Henrik, Mathiesen Eirik, Realfsen Bjørnar
Принадлежит: Kongsberg Maritime AS

The present invention relates to a system and method for controlling a power plant in a marine vessel. The system comprises at least one switchboard further comprising,a plurality of power plant members including, power suppliers such as power generators and energy storage elements, at least one consumer, and a Dynamic Hybrid Control unit comprising a measurement means for monitoring predetermined power plant and vessel related parameters,and a computational means for computing and predicting power and energy requirements in the power plant for varying time spans into the future. The system utilizes said power and energy requirements for pre-planning and allocating of power and energy between said power plant members for minimizing transients, including voltage, frequency variations in the power plant and load variations on the power generators. 1. A system for controlling a power plant in a marine vessel , the power plant comprising;at least one switchboard including at least one switching device, and at least one consumer; andat least one power generator supplying electrical energy to the at least one switchboard; andat least one energy storage device coupled to the switchboard capable of storing excess energy from the switchboard, and capable of sourcing the stored energy through the switchboard to the at least one consumer;wherein the at least one power generator, the at least one energy storage device, and the at least one consumer are coupled to a Dynamic Hybrid Control (DHC) unit, the control unit controlling the flow of energy on the at least one switchboard; measurement means for monitoring predetermined power plant and vessel related parameters; and', 'computational means for computing and predicting power and energy requirements in the power plant for varying time spans into the future, based upon data including, the parameters monitored by the measurement means, pre-determined models, and expected energy flow trends related to the at least one power ...

Подробнее
Номер записи: 99
04-03-2021 дата публикации

GRID POWER FOR HYDROCARBON SERVICE APPLICATIONS

Номер: US20210066915A1
Автор: Alshutlawy Mohamad, Fischer John Harold, Todd David Norman, Vallejo Carlos Alfredo, Weightman Glenn Howard
Принадлежит:

A grid power configuration may provide a reliable, efficient, inexpensive and environmentally conscious power source to a site, for example, a remote site such as a well services environment. Grid power may be provided for one or more operations at the site by coupling a main breaker to a switchgear unit coupled to one or more loads. The switchgear unit may be coupled to the main breaker via a main power distribution unit and may also be coupled to one or more loads. At least one of a grid power unit and a switchgear unit may be coupled to the main breaker via the main power distribution unit and may also be coupled to one or more additional loads. A control center may be communicatively coupled to the main breaker or any one or more other components to control one or more operations of the grid power configuration. 1. A grid power system for distribution of electrical power at a site , comprising:a main breaker coupled to an electrical power source;a first switchgear unit coupled to the main breaker;one or more loads coupled to the first switchgear unit; andone or more communications lines coupled to at least one of the first switchgear unit and the main breaker.2. The grid power system of claim 1 , wherein the main breaker comprises at least one of a switchgear and a current monitoring system.3. The grid power system of claim 1 , further comprising a main power distribution unit coupled to the main breaker and the first switchgear unit claim 1 , wherein the main breaker is coupled to the first switchgear unit through the main power distribution unit.4. The grid power system of claim 1 , further comprising a second switchgear unit coupled to the first switchgear unit claim 1 , wherein at least one of the one or more loads are coupled to the first switchgear unit through the second switchgear unit and a second one or more loads coupled to the second switchgear unit.5. The grid power system of claim 1 , further comprising a grid power unit coupled to the first switch ...

Подробнее
Номер записи: 100