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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

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Мониторинг СМИ

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

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 18. Отображено 18.
01-08-2023 дата публикации

Flywheel energy storage array coordination control method and system

Номер: CN116526525A
Автор: YAO LIANGZHONG, WANG JINGJING, LIAO SIYANG, XU JIAN, KE DEPING, MAO BEILIN, YU HENGNING, YIN DEQIANG, WANG JUN, XIE BO, YU HONGYAN
Принадлежит:

The invention discloses a flywheel energy storage array coordination control method and system, and the method comprises the steps: determining the power which should be outputted by a flywheel energy storage array when the power of a wind power plant fluctuates; establishing a consistency index of the flywheel energy storage array; determining an operation constraint condition of each flywheel single body in the flywheel energy storage array and a power balance constraint condition of the flywheel energy storage array; and performing consistency algorithm iterative operation based on the consistency index and the operation constraint condition and the power balance constraint condition of each flywheel monomer until the consistency index of each flywheel monomer is consistent, and determining the output value of each flywheel monomer according to the consistency index which is consistent after iteration so as to realize coordination control of the flywheel energy storage array. According ...

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Номер записи: 1
28-07-2023 дата публикации

Distributed resource clustering method and system based on index weight improved K-means + + algorithm

Номер: CN116502111A
Автор: LIAO SIYANG, LEI XICHUN, XU JIAN, KE DEPING, SUN YUANZHANG
Принадлежит:

The invention discloses a distributed resource clustering method and system based on an index weight improved K-means + + algorithm, and the method comprises the steps: firstly, selecting a control index according to the actual demands of a power fluctuation stabilization target for resource regulation and control, and constructing a resource clustering control index system; then determining a weight configuration principle according to a clustering target and a clustered service object, and performing weighting on each clustering control index; and finally, based on the obtained weight configuration result, improving a sample Euclidean distance calculation mode in a K-means + + algorithm to realize grouping clustering of distributed resources. According to the method, technical and economical requirements of regulation and control of three distributed resources including distributed photovoltaic, distributed energy storage and flexible load are comprehensively considered, resource clustering ...

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Номер записи: 2
12-05-2023 дата публикации

Online modeling method of load voltage-power coupling characteristic model

Номер: CN116108619A
Автор: XU JIAN, XIE BOYU, LIAO SIYANG, KE DEPING, SUN YUANZHANG
Принадлежит:

The invention discloses an online modeling method of a load voltage-power coupling characteristic model. The online modeling method comprises the following steps: firstly, designing two adjustment characteristic model structures oriented to steady-state and transient-state control applications; then, when model parameters need to be updated, a voltage disturbance signal with a small time domain amplitude and a wide frequency domain spectrum is applied to a feeder line through a voltage regulating device, the voltage-power coupling characteristic of a feeder line load is excited online, and effective data of the voltage-power coupling characteristic of the load are obtained in real time; and finally, based on test data, identifying model parameters by using an augmented least square algorithm. According to the method, the feeder load voltage-power coupling characteristic is expanded from a traditional static load to a comprehensive load, a first-order and third-order feeder load voltage-power ...

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Номер записи: 3
25-04-2023 дата публикации

Power distribution network peak regulation random optimization method considering three-phase imbalance

Номер: CN116014749A
Автор: XU JIAN, XIE BOYU, LIAO SIYANG, KE DEPING, SUN YUANZHANG
Принадлежит:

The invention provides a power distribution network peak regulation random optimization method considering three-phase imbalance, and belongs to the technical field of power distribution network control. Comprising the following steps: establishing a new energy power prediction error probability distribution model, generating a power scene for obtaining a possible error value of new energy power, and reducing the power scene; establishing a three-phase power distribution network peak regulation optimization model based on feeder line load power control; and simplifying and solving the peak regulation optimization model. According to the invention, a feeder load power control technology is utilized, various voltage regulating devices are coordinated to complete feeder load power control, and the problems of system peak regulation and imbalance treatment are comprehensively solved. The method mainly aims at a high-proportion new energy single-phase access scene, a multi-target optimization ...

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Номер записи: 4
07-04-2023 дата публикации

Optimization method and system for utilization of electric heating collaborative low-grade heat source considering source charge uncertainty

Номер: CN115936224A
Автор: SUN JIAN, XU JIAN, KE DEPING, LIAO SIYANG, ZHENG JINGWEN, CUI YIBO, LING ZAIXUN
Принадлежит:

The invention relates to an electric heating collaborative low-grade heat source utilization optimization method and system considering source and load uncertainty, and the method comprises the steps: randomly generating a source and load output scene, and carrying out the reduction of the random scene; establishing an electric heating collaborative planning model and constraint conditions of park low-grade heat source utilization considering source load uncertainty, and simplifying and solving the model to determine energy junction station equipment configuration capacities in different scenes; the final energy junction station equipment configuration is obtained by adding the product of the energy junction station equipment configuration capacity and each scene probability reserved after scene reduction; and repeatedly calculating the final energy junction station equipment configuration capacity until the error of two adjacent calculation equipment configuration results is smaller than ...

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Номер записи: 5
01-08-2023 дата публикации

Cooperative control method and system for frequency modulation participated by flywheel-battery hybrid energy storage, and medium

Номер: CN116526508A
Автор: YAO LIANGZHONG, CAO DONGZHI, LIAO SIYANG, XU JIAN, KE DEPING, MAO BEILIN, WU XIN, XIE BO, YU HONGYAN
Принадлежит:

The invention relates to a flywheel-battery hybrid energy storage participated frequency modulation cooperative control method and system and a medium, and the method comprises the steps: collecting a real-time frequency signal and a sampling time interval, and calculating a frequency deviation and a frequency deviation change rate at a current moment based on the real-time frequency signal, a rated working frequency and the sampling time interval; when the frequency deviation exceeds a system frequency modulation threshold value, calculating an output distribution coefficient value based on the frequency modulation stage of the system; and calculating an active power value which should be output by the hybrid energy storage system based on the frequency deviation, the frequency deviation change rate and the value of the output distribution coefficient at the current moment, and providing a power reference value for controlling the hybrid energy storage system. Compared with a traditional ...

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Номер записи: 6
02-06-2023 дата публикации

Unified network-based electric heating comprehensive energy model construction method and system, and medium

Номер: CN116205043A
Автор: SONG LIN, LAN TIANKAI, KE DEPING, WU HAOTIAN, XU JIAN, LIAO SIYANG, ZHENG JINGWEN, LING ZAIXUN, CUI YIBO
Принадлежит:

The invention relates to a unified network-based electric heating comprehensive energy model construction method and system and a medium, and the method comprises the steps: firstly inputting the thermal power of each node in a thermal network, outputting the thermal power of each node according to a thermal system model in an electric heating system model in a unified circuit form, and outputting the electric power of all CHP ports according to an obtained heat-to-electricity ratio; and according to a simplified electric power system model in the electric heating system model in the unified circuit form, outputting electric power of all nodes, judging whether a balance node margin requirement is met or not, and if the requirement is not met, repeatedly inputting thermal power of each node in the thermal power network until a condition is met. According to the method, a complex power grid containing various elements is equivalent to a simple power grid, and convenience is provided for various ...

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Номер записи: 7
15-08-2023 дата публикации

CIM standard-based pneumoelectric coupling system information model processing method and device

Номер: CN116595794A
Автор: WU YUHUI, XU JIAN, KE DEPING, LIAO SIYANG, JIANG XINXIONG, CHEN RUI, WANG JUN, FENG SHUAISHUAI, PI SHANQUAN
Принадлежит:

The invention relates to a modeling technology, in particular to a method and a device for processing a gas-electric coupling system information model based on a CIM standard, and the method comprises the following steps: for static physical elements in gas-electric coupling system joint optimization, referring to modeling thoughts of a generator set and a circuit; and the IEC 61970 series standard is expanded to form a static physical element sub-information model of the gas-electric coupling system. Then, for dynamic service information in the pneumoelectric coupling system, IEC 61968 series standards are expanded to form a dynamic service sub-information model of the pneumoelectric coupling system; according to the method, the static element composition and dynamic service characteristics of the pneumoelectric coupling system are analyzed, and the information model of the pneumoelectric coupling system is expanded aiming at the problem that the pneumoelectric coupling system lacks an ...

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Номер записи: 8
21-07-2023 дата публикации

Line power flow control method based on deep reinforcement learning

Номер: CN116470511A
Автор: LONG YUN, WANG HAI, LIU LUHAO, LU YOUFEI, WU RENBO, ZHANG YANG, ZHAO HONGWEI, CHEN MINGHUI, ZHANG SHAOFAN, ZOU SHIRONG, CAI YANCHUN, LIU XUAN, WANG XIYUE, KE DEPING
Принадлежит:

The invention relates to a line power flow control method based on deep reinforcement learning, and the method comprises the steps: S1, carrying out power system line power flow control modeling, minimizing the control cost of element active adjustment through a power system line power flow control model, and enabling the system power flow to be redistributed through adjusting the output of a controllable element; s2, reinforcement learning environment modeling: setting environment state quantity, actions, state transition, rewards and discount factors in power system environment modeling according to requirements formed by a Markov decision process; and S3, performing agent training by adopting an SAC reinforcement learning algorithm, obtaining a reward through interaction with the environment, and finding an optimal strategy to maximize the expectation of the reward. According to the method, for a line power flow out-of-limit scene caused after load fluctuation and an anticipated event ...

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Номер записи: 9
09-05-2023 дата публикации

Electric heat comprehensive energy system advanced scheduling method and system and medium

Номер: CN116090754A
Автор: KE DEPING, WANG HUIJI, XU JIAN, LIAO SIYANG, ZHENG JINGWEN, LING ZAIXUN, CUI YIBO
Принадлежит:

The invention provides an advanced scheduling method and system for an electric heat comprehensive energy system and a medium. According to the method, an electricity, gas and heat comprehensive energy system model is constructed through coupling equipment heat and power cogeneration units and electricity-to-gas conversion; the new energy prediction output and future load condition of the system are obtained through the long-short-term memory artificial neural network; sequentially constructing a system standby constraint, a generator set operation constraint, a wind power plant operation constraint, a power network constraint, a thermodynamic system operation constraint, a gas source point constraint, a pipeline constraint and a node supply and demand balance constraint, and establishing a coupling equipment constraint; constructing an electric heating system target model and a natural gas system target model of the electric heating comprehensive energy system; and carrying out optimization ...

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Номер записи: 10
04-04-2023 дата публикации

Load power real-time control method considering voltage out-of-limit

Номер: CN115912515A
Автор: XIE BOYU, LIU YANG, LI QIONGLIN, WANG HUA, SUN XIN, TENG WEIJUN, ZHANG YAFEI, LI CHAOHUI, YANG HAIJING, GU QINGFA, XU JIAN, LIAO SIYANG, KE DEPING, SUN YUANZHANG
Принадлежит:

The invention provides a load power real-time control method considering voltage out-of-limit. The load power real-time control method comprises the following steps: S1, determining a feeder voltage target value; s2, a photovoltaic reactive power-voltage state space model, a fan reactive power-voltage state space model and a real-time voltage regulator reactive power-voltage state space model are established, a system reactive power-voltage state space model is established in combination with a system, and a feeder voltage prediction model is obtained in combination with voltage sensitivity; s3, constructing and solving a feeder load power control rolling optimization model; s4, executing an optimization result, and performing feeder load power feedback correction; and S5, judging a load power control result, and exiting optimization or repeating the step S2. According to the method provided by the invention, the system feeder voltage prediction model is constructed, real-time correction ...

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Номер записи: 11
04-02-2015 дата публикации

Method for evaluating influence, on three-section-type current protection of distribution network, of distributed-type power source connection

Номер: CN104333043A
Автор: KE DEPING, MA XIAOBO, SUN YUANZHANG, ZHANG CHEN, ZHOU XINNAN
Принадлежит:

The invention discloses a method for evaluating influence, on three-section-type current protection of a distribution network, of distributed-type power source connection. The method is realized on the basis of a rule library, a plurality of rule steps which are executed sequentially are contained in the rule library, these general semantic rules are suitable for any distribution network systems and distributed-type power source connection conditions, each rule guides an operator how to construct a short-circuit scene through descriptive language and select which protection I, II or III sections for verification; in this way, the operator does not need to analyze and determine checking steps according to a studied system and can efficiently and accurately judge influence, on protection, of distributed-type power source connection schemes by only sequentially executing the rule steps in the rule library; when all rules in the rule library are checked successfully one by one, correct action ...

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Номер записи: 12
09-05-2023 дата публикации

Load damping factor control method and system based on parallel reactive compensation

Номер: CN116093976A
Автор: SUN YUANZHANG, XU JIAN, LIAO SIYANG, KE DEPING
Принадлежит:

The invention relates to a load damping factor control method and system based on parallel reactive compensation, and the method comprises the steps: introducing frequency feedback control to most controllable flexible loads in the system, and transforming a natural load damping factor into a controlled load damping factor. Experiments on industrial electrical loads, commercial and residential electrical loads and agricultural electrical loads in an actual power system show that the value of the controlled load damping factor is distributed in the range of a large probability, so that the frequency modulation capability of the novel power system can be greatly enhanced.

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Номер записи: 13
29-08-2023 дата публикации

Natural gas pipeline air pressure fluctuation prediction method and system

Номер: CN116663178A
Автор: WU YUHUI, XU JIAN, KE DEPING, LIAO SIYANG, JIANG XINXIONG, CHEN RUI, WANG JUN, FENG SHUAISHUAI
Принадлежит:

The invention relates to a gas-electric coupling system situation awareness technology, in particular to a natural gas pipeline air pressure fluctuation prediction method and system.The method comprises the steps that firstly, an algebraic expression is used for reflecting the change rule of pipeline air pressure along with time, and a pipeline air pressure sequence is generated; and then extracting all subsequences with the fluctuation amplitude greater than 0.05 kPa in the sequence through an online algorithm, wherein the difference between the starting time and the maximum value and the minimum value of the subsequences is a prediction result. According to the prediction method, when the pipeline air pressure fluctuates due to rapid adjustment of the flow can be rapidly predicted, and support is provided for real-time state perception and safety early warning of a gas-electricity coupling system by calculating the fluctuation amplitude of the pipeline air pressure and the moment when ...

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Номер записи: 14
30-07-2014 дата публикации

Wind power climbing event probability scene prediction method

Номер: CN103955779A
Автор: CUI MINGJIAN, KE DEPING, GAN DI, SUN YUANZHANG
Принадлежит:

The invention relates to a wind power climbing event probability scene prediction method. According to the method, distribution characteristic consistency and time sequence characteristic consistency are achieved through building of a multi-objective fitness function of a cumulative density function and a high-order moment autocorrelation function. On the basis of a genetic algorithm of the multi-objective fitness function, iterative optimization is conducted on probability generation model parameters to obtain a large number of prediction scenes, and climbing event probability characteristics excavated from scene capture zones are used for evaluating the prediction method. Actual data of some aboard wind field are selected for conducting example calculation and statistical analysis, the result shows that the statistical result of the multi-objective function is more accurate than that of a single-objective function, the probability scene prediction method can accurately estimate the characteristic ...

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Номер записи: 15
06-06-2023 дата публикации

Unit combination intelligent decision-making method based on data driving

Номер: CN116227180A
Автор: LONG YUN, LIANG XUEQING, LIU LUHAO, LU YOUFEI, WU RENBO, ZHANG YANG, ZHAO HONGWEI, CHEN MINGHUI, ZHANG SHAOFAN, ZOU SHIRONG, CAI YANCHUN, LIU XUAN, WANG XIYUE, KE DEPING
Принадлежит:

The invention relates to the field of electric power systems and automation research, in particular to a unit combination intelligent decision-making method based on data driving, which comprises the following steps: S1, generating a mapping sample of unit combination historical data based on historical daily load data of an electric power system, and normalizing the historical daily load data of the electric power system; s2, constructing a unit commitment deep learning model based on a long and short term memory network and an attention mechanism; s3, training the unit commitment deep learning model based on the mapping sample of the historical data of the unit commitment; and S4, inputting the daily load data into the unit combination deep learning model, and outputting an expected unit combination start-stop and output scheme. According to the method, the unit commitment deep learning model is constructed based on the long and short term memory network and the attention mechanism, the ...

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Номер записи: 16
04-04-2023 дата публикации

Power grid power fluctuation real-time stabilization control method based on feeder line load power control

Номер: CN115912403A
Автор: XU JIAN, XIE BOYU, LIAO SIYANG, KE DEPING, SUN YUANZHANG
Принадлежит:

The invention provides a power grid power fluctuation real-time stabilization control method based on feeder line load power control, which comprises the following steps of: S1, calculating feeder line load reference power: selecting a lower network point of a power distribution network as a control object of power fluctuation stabilization, and limiting the power fluctuation rate of the lower network point to be within 10%/min as a control target; s2, designing a feeder load power controller: selecting a PI controller as a main controller for real-time feeder load power control; s3, designing a time delay compensator: adopting a Smith predictor as the time delay compensator; s4, setting parameters of the control system: realizing automatic calculation of control gain by using a Z-N frequency domain setting method; and S5, performing power fluctuation stabilizing control: starting a feeder load power control program, acquiring system operation data by a measurement system, generating reference ...

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Номер записи: 17
09-06-2023 дата публикации

Power system source network load storage combined regulation and control method and device based on deep reinforcement learning

Номер: CN116247742A
Автор: LONG YUN, LIANG XUEQING, LIU LUHAO, LU YOUFEI, WU RENBO, ZHANG YANG, ZHAO HONGWEI, CHEN MINGHUI, ZHANG SHAOFAN, ZOU SHIRONG, CAI YANCHUN, LIU XUAN, WANG XIYUE, KE DEPING
Принадлежит:

The invention discloses a deep reinforcement learning-based power system source-grid-load-storage combined regulation and control method and device, computer equipment and a storage medium, and the method comprises the steps: preliminarily generating a source-load-storage scheduling scheme with economy as a target according to the prediction information of a power system, and enabling the source-load-storage scheduling scheme to serve as the basis of intelligent agent regulation and control; designing a reinforcement learning architecture of source-network-load-storage combined scheduling, and learning to correct a source-load-storage scheduling scheme by taking security as a target through a deep reinforcement learning training agent so as to realize source-network-load-storage combined scheduling; wherein a reward function in the reinforcement learning architecture guides an intelligent agent to reserve enough margin and sufficient reserve for an uncertain scene by defining a line power ...

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Номер записи: 18