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 17200. Отображено 100.
21-01-2019 дата публикации

Устройство автоматической компенсации реактивной мощности

Номер: RU0000186406U1
Автор: Александр Александрович Штанг, Александр Владимирович Мятеж, Евгений Юрьевич Абрамов, Егор Александрович Спиридонов, Николай Иванович Щуров, Сергей Владимирович Мятеж
Принадлежит: Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Образования "Новосибирский Государственный Технический Университет"

Полезная модель относится к области электротехники, в частности к системам электроснабжения, и может быть использована для компенсации реактивной мощности потребителей в сетях трехфазного переменного тока, а также при создании трансформаторных подстанций с высокой эффективностью потребления электроэнергии. Устройство автоматической компенсации реактивной мощности включает инвертор напряжения с системой управления, выполненной с каналом ШИМ выходного напряжения инвертора и каналом регулирования фазы выходного напряжения инвертора, дроссель и батарею косинусных конденсаторов, а также содержит датчик реактивной мощности сети и датчик отклонений напряжения нагрузки, причем дроссель подключен к трехфазной сети через дополнительно введенные трансформаторы тока и датчики напряжения, причем вторичные цепи трансформаторов тока и датчиков напряжения трехфазной сети соединены с блоком умножения, который таким образом определяет среднее значение мощности за период, выход блока умножения соединен с входом интегратора для определения активной мощности и пропорционального ей значения модуля тока компенсации, выход интегратора соединен с одним входом формирователя корректирующего тока, второй вход формирователя корректирующего тока соединен с вторичными цепями датчиков напряжения трехфазной сети, третий вход формирователя корректирующего тока соединен с вторичными цепями трансформаторов тока нагрузки с реактивным характером, при этом трансформаторы тока нагрузки с реактивным характером подключены к питающей трехфазной сети параллельно трансформаторам тока инвертора напряжения и датчиков напряжения, таким образом, что сам формирователь получает корректирующий ток как разность между током компенсации и мгновенным значением тока нагрузки, при этом выход формирователя корректирующего тока управляет инвертором напряжения на основе схемы управляемого трехфазного моста с буферным конденсатором и трехфазным дросселем. Техническим результатом является повышение точности компенсации ...

Подробнее
Номер записи: 1
17-02-2021 дата публикации

Блок оросителя градирни

Номер: RU0000202417U1
Автор: Феликс Мубаракович Давлетшин
Принадлежит: Феликс Мубаракович Давлетшин

Полезная модель относится к области оборотного водоснабжения, а именно к конструктивным элементам градирен и других аппаратов для теплообмена между жидкими и газообразными средами. Блок оросителя градирни содержит цилиндрические трубы с сетчатой стенкой, изготовленные из термопластичной пластмассы и установленные под углом к горизонтальной плоскости с образованием параллельных рядов труб, жестко скрепленных в местах их соприкосновения между собой, сетчатая стенка цилиндрических труб образована перекрещивающимися, скрепленными в местах пересечения между собой термопластическими нитями толщиной 1,0 - 2,0 мм с образованием ромбовидных отверстий, при этом более длинная диагональ ромбов которых параллельна образующим цилиндрической поверхности трубы, максимальная длина отверстий вдоль более длинной диагонали ромба составляет 1,3 - 1,5 от максимальной ширины этого отверстия вдоль более короткой диагонали отверстия, а острый угол между сторонами отверстий составляет 30-40°.В результате достигается повышение интенсивности теплообмена за счет снижения гидравлических потерь при перекрестном течении жидкой и газообразной фаз. 4 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 202 417 U1 (51) МПК F28F 25/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК F28F 25/08 (2020.05) (21)(22) Заявка: 2020119075, 02.06.2020 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Давлетшин Феликс Мубаракович (RU) Дата регистрации: 17.02.2021 Приоритет(ы): (22) Дата подачи заявки: 02.06.2020 (45) Опубликовано: 17.02.2021 Бюл. № 5 2 0 2 4 1 7 R U (54) Блок оросителя градирни (57) Реферат: Полезная модель относится к области оборотного водоснабжения, а именно к конструктивным элементам градирен и других аппаратов для теплообмена между жидкими и газообразными средами. Блок оросителя градирни содержит цилиндрические трубы с сетчатой стенкой, изготовленные из термопластичной пластмассы и установленные под углом к ...

Подробнее
Номер записи: 2
19-01-2012 дата публикации

Adaptive on-time control for power factor correction stage light load efficiency

Номер: US20120014148A1
Автор: Chuanyun Wang, Fred C. Lee, Ming Xu, QIAN LI
Принадлежит: Virginia Tech Intellectual Properties Inc

Light load efficiency of a power factor correction circuit is improved by adaptive on-time control and providing for selection between a continuous conduction mode and a discontinuous conduction mode wherein the discontinuous conduction mode increases time between switching pulses controlling connection of a cyclically varying voltage to a filter/inductor that delivers a desired DC voltage and thus can greatly reduce the switching frequency at light loads where switching frequency related losses dominate efficiency. The mode for controlling switching is preferably selected for each switching pulse within a half cycle of the cyclically varying input voltage. A multi-phase embodiment allows cancellation of EMI noise at harmonics of the switching frequency and adaptive change of phase angle allows for cancellation of dominant higher order harmonics as switching frequency is reduced.

Подробнее
Номер записи: 3
16-02-2012 дата публикации

High efficiency feedwater heater

Номер: US20120037097A1
Автор: Joseph E. Schroeder, Yuri M. Rechtman
Принадлежит: Nooter Eriksen Inc

A feedwater heater ( 10 ) for a steam generator communicating feedwater through an external heat exchanger ( 12 ), a deaerator ( 14 ) that allows the use of carbon steel feedwater tubes, a first heater ( 16 ), an evaporator section ( 18 ) and steam drum ( 17 ) for communicating a portion of the feedwater in the form of steam to the deaerator ( 14 ), and a second heater ( 20 ).

Подробнее
Номер записи: 4
29-03-2012 дата публикации

Prescriptive wellbeing utilizing an enterprise grid

Номер: US20120078808A1
Автор: Aaron K. Baughman, Andreas J. Schindler, Christian Eggenberger-Wang, Karina Zwolak, Peter K. Malkin
Принадлежит: International Business Machines Corp

A system and method for implementing an enterprise grid to model the wellbeing of an enterprise. The system includes a system for creating models to form the enterprise grid, wherein a set of entity models are utilized to model entities within the enterprise and a set of organizational models are utilized to model organizational aspects of the enterprise, and wherein at least one class of entity models are utilized to model humans; a system for training models; a system for receiving an input from an entity within the enterprise and forwarding the input into an associated entity model; and a system for connecting models such that an output of a source model is only directed to a target model either at a same hierarchical level or at a parent level.

Подробнее
Номер записи: 5
12-04-2012 дата публикации

Fluid-flow control in energy storage and recovery systems

Номер: US20120085086A1
Автор: Andrew Shang, Benjamin R. Bollinger, Lee Doyle, Michael Neil Scott, Troy O. McBride
Принадлежит: Individual

In various embodiments, compressed-gas energy storage and recovery systems feature one or more valves, which may be disposed within end caps of cylinder assemblies in which gas is expanded and/or compressed, for admitting fluid to and/or exhausting fluid from the cylinder assembly.

Подробнее
Номер записи: 6
03-05-2012 дата публикации

Wind turbine generator and tidal current generator and operation method thereof

Номер: US20120104752A1
Автор: Daniil Dumnov, Kazuhisa Tsutsumi, Masayuki Shimizu, Niall Caldwell, Stephen Laird, Venkata Pappala
Принадлежит: Mitsubishi Heavy Industries Ltd

An object of the invention is to provide a wind turbine generator or a tidal current generator which is equipped with a hydraulic transmission and achieves a superior power generation efficiency, and a operation method thereof. The wind turbine generator 1 comprises a hydraulic pump 12 of a variable displacement type which is rotated by the main shaft 8 , a hydraulic motor 14 of a variable displacement type which is connected to the generator 20 , and a high pressure oil line 16 and a low pressure oil line 18 which are arranged between the hydraulic pump 12 and the hydraulic motor 14 . The pump controller 32 obtains a target torque of the hydraulic pump 12 at which a power coefficient becomes maximum, and then sets a displacement D p of the hydraulic pump 12 based on the target torque and the pressure in the high pressure oil line 16 . The motor controller 34 sets a displacement D m of the hydraulic pump 14 based on a discharge amount Q p of the hydraulic pump obtained from the displacement D p of the hydraulic pump 12 so that the rotation seed of the generator 20 becomes constant.

Подробнее
Номер записи: 7
03-05-2012 дата публикации

Radial Diaphragm Pump

Номер: US20120107150A1
Автор: Andrzej Falacinski, Bogdan Pawlak, Zbigniew Salek
Принадлежит: Individual

A pump includes a housing, an output member supported for eccentric rotation on a drive shaft of the housing, and a plurality of pumping assemblies supported on the housing about the drive shaft. Each pumping assembly includes a linear sliding pump shaft, a diaphragm oriented transversely to the shaft in sealing engagement with the housing to define a wall portion of a respective pumping chamber, an inlet check valve, and an outlet check valve. A linkage assembly connects the output member to the pump shafts of the pumping assemblies such that the pump shafts are arranged to be reciprocated along radially oriented axes about the drive shaft in response to rotation of the drive shaft.

Подробнее
Номер записи: 8
17-05-2012 дата публикации

Method and apparatus for extracting energy from a fluctuating energy flow from a renewable energy source

Номер: US20120117958A1
Автор: Daniil Sergeevich Dumnov, Michael Richard Fielding, Niall James Caldwell
Принадлежит: Artemis Intelligent Power Ltd

In an energy extraction device and method for extracting energy from a fluctuating energy flow from a renewable energy source, a hydraulic pump is driven by a rotating shaft, driven in turn by a renewable energy source. A hydraulic motor drives a load and a high pressure manifold communicates between the pump, motor and an elastically deformable fluid retaining body. The hydraulic pump and hydraulic motor comprise working chambers displacing a volume of working fluid selectable on each cycle of working chamber volume by the control of electronic valves. The pressure in the high pressure manifold is measured and the net rate of displacement of working fluid by the hydraulic pump is selected responsive thereto to regulate the torque applied to the said rotating shaft.

Подробнее
Номер записи: 9
17-05-2012 дата публикации

Energy recovery in hot strip mills by converting the cooling heat of the continuous casting plant and the residual heat of slabs and coils into electrical enery or otherwise utilizing the captured process heat

Номер: US20120118526A1
Автор: Axel Stavenow, Horst Gaertner, Juergen Seidel, Peter Sudau
Принадлежит: Sms Siemag AG

In hot strip plants, after casting, the residual heat of a partial quantity of the slabs has hitherto been used such that the slabs either are directly rolled or are placed warm or hot in the furnace. The remaining slabs normally cool after casting in a hall through which flows air and are stacked before their further transport. The same applies to the residual heat present in the coils after winding, which often cool in the coil-storage area in air. The cooling energy of the continuous-casting plant likewise escapes unused into the surroundings. In order to convert this unused solidification heat and residual heat into electric energy, it is proposed according to the invention that the slabs ( 10 ) are cast in a continuous-casting plant and the slabs ( 10 ) or coils are transported into the slab-storage area ( 12 ) or coil-storage area and during the casting in heat exchangers ( 31 ) and/or during the transport in heat exchangers ( 31 ) heat is extracted and/or there are deposited in part one on top of the other in specially prepared storage areas ( 30 ) provided with heat exchangers ( 31 ) for a short time or several hours, wherein in this transport period the cast billet or the slab ( 10 ) and/or in the storage period the residual heat of the slabs ( 10 ) or coils is transferred via heat conduction and thermal radiation and convection via the heat exchangers ( 31 ) into a heat-transfer medium such as, for example, thermal oil, and heats it, which then is discharged via heat-transfer transport lines ( 33 ) for power generation and/or direct use of the process heat by other heat consumers.

Подробнее
Номер записи: 10
17-05-2012 дата публикации

Submerged energy storage

Номер: US20120119503A1
Автор: Martinus van Breems
Принадлежит: Individual

A submerged energy storage system and method incorporates a pump having a helix screw coupled with a storage tank on the sea floor and motive means, such as wind driven impellers or wave motion produced by sliding buoys or driving the screw of the pump.

Подробнее
Номер записи: 11
17-05-2012 дата публикации

Air conditioning wiring system

Номер: US20120122323A1
Автор: Aylan A. Him, Carlos O. Chamorro, Merlin K. Chapin, Michael Renker, Randall L. Lisbona, Richard A. Mauk, Robert W. Gilkison, Steven C. Brown
Принадлежит: Lennox Industries Inc

A wiring system for use in an air conditioning system comprising a printed circuit board having wiring receptacles and wiring connectors. In one aspect, at least some of the wiring receptacles comprise two or more wiring sub-receptacles, and each of the wiring sub-receptacles includes a slotted sub-receptacle connection pattern. Furthermore, the slotted sub-receptacle connection pattern of each of the wiring sub-receptacles is different from every other sub-receptacle connection pattern. Each of the wiring connectors includes a ridged connection pattern that is different from every other ridged connection pattern of the wiring connectors, such that a given wiring connector is receivable within only one of the wiring sub-receptacles. An air conditioning system and a method of manufacturing is also provided.

Подробнее
Номер записи: 12
31-05-2012 дата публикации

Method for zone based energy management system with scalable map interface

Номер: US20120135759A1
Автор: James Hollister, John Frederick Cottrell, Kevin R. Imes
Принадлежит: Individual

A method of managing energy use of a network device located at a site with a mobile device is provided. The method proceeds by determining a plurality of zones about the site and detecting a current location of the mobile device relative to the plurality of zones. The method continues by altering the operating condition of the network device in response to detecting the mobile device changing zones. A graphical user interface (GUI) is displayed within the display screen of the mobile device. A map presenting the site location, the plurality of zones disposed about the site location, and the current location of the mobile device is displayed within the GUI along with a distance selector including selectable distance values. The method further includes automatically scaling the plurality of zones and the map in response to changing the selectable distance value using the distance selector.

Подробнее
Номер записи: 13
14-06-2012 дата публикации

Wind-power and hydraulic generator apparatus

Номер: US20120146334A1
Автор: Shun-Tsung Lu
Принадлежит: Individual

A wind-power and hydraulic generator apparatus has a wind power device, a drive device, multiple pump devices, a reservoir device and a hydraulic device. When the wind blows, the wind power device generates and stores electricity and the drive device drives the pump devices to pump water into the reservoir device. Then the reservoir device generates a water jet enabling the hydraulic device to generate electricity. When the wind does not blow, the electricity stored in the wind power device still enables the water to circulate and to generate the water jet. Whether the wind blows or not, the water of the reservoir device can keep circulating to generate the water jet and the hydraulic device can keep generating electricity. Accordingly, the wind-power and hydraulic generator apparatus can use wind power to generate a water jet.

Подробнее
Номер записи: 14
14-06-2012 дата публикации

Fuel Cell System with Grid Independent Operation and DC Microgrid Capability

Номер: US20120146587A1
Автор: Arne Ballantine, James McElroy, Rajaram Swaminathan, Ramesh Srinivasan, Ranganathan Gurunathan
Принадлежит: Bloom Energy Corp

A fuel cell system includes grid independent operation with DC microgrid capability. This fuel cell system has a capability of operation with and without the grid, and with DC micro-grid capability.

Подробнее
Номер записи: 15
28-06-2012 дата публикации

Method and system for integral energy management of buildings

Номер: US20120166007A1
Автор: Chang-Sie Choi, Hyun Jin Yoon, Il Woo Lee, Jinsoo Han, Wan Ki PARK, Youn Kwae Jeong
Принадлежит: Electronics and Telecommunications Research Institute ETRI

An EMM (Energy Monitoring and Management) control system performs energy management of buildings, each building having an EMM client disposed therein. The EMM control system includes an EMM server configured to receive operation information of energy-consuming equipments in the building and information related to energy and environment of the building from the EMM client to perform a function of analyzing/taking statistics/reporting for the operation information, and energy and environment information, an EOM (Energy Optimization and Maintenance) server configured to derive an optimum energy operation program through energy evaluation index and simulation from the information provided from the EMM client and providing the optimum energy operation program to the EMM client.

Подробнее
Номер записи: 16
05-07-2012 дата публикации

Power Generation System, Power Generator and Method Thereof

Номер: US20120169061A1
Автор: Hae Sook Lee, Tai Koan Lee
Принадлежит: Individual

A power generation system and generator provided through a fluid flow energy source to generate electricity. The system comprising an energy source of one or more wind turbines; a motor; a transmission component comprising a pump, set of water circulators, set of water pipes, and set of transmission devices. Electricity generated from the wind turbine is adjusted, supplied to a vehicle motor, and powers the pump motor for moving water into the circulators. Another power generation system comprises unidirectional conduits for receiving an external fluid flow, a pump, a water turbine operatively connected with a transmission which is connected to a generator. In another embodiment, instead of a water turbine, one or more fluid circulators are operatively connected with a transmission which is connected to a generator. Fluid released from the pump enters a reservoir in fluid connection with a unidirectional conduit, through which fluid is pulled through the system.

Подробнее
Номер записи: 17
13-09-2012 дата публикации

Converter with power factor correction

Номер: US20120230068A1
Автор: Christian Augesky
Принадлежит: SIEMENS AG

A converter for converting an input-side alternating current into an output-side DC current, with a power factor correction being provided, wherein the converter comprises a transformer having at least two serially arranged primary windings, a first switch is used to switch a storage capacitor unit in series with a first primary winding to the alternating current in a clocked manner via rectification elements and a second primary winding is switchable to the storage capacitor unit in a clocked manner by a second switch.

Подробнее
Номер записи: 18
20-09-2012 дата публикации

Resonant converter apparatus and method thereof

Номер: US20120236610A1
Автор: Tai Keung Lee, Wing Ling Cheng, Xiao Fen Zhong, Yi Cai
Принадлежит: Astec International Ltd

A resonant converter apparatus includes a plurality of resonant converters connected in parallel, and a control module outputting a pulse width modulation (PWM) control signal to the resonant converters. The control module includes a voltage control loop and a circuit control loop. The voltage control loop compares the sensed output voltage with a predetermined reference voltage, and outputs a PWM control signal to one of the resonant converters so the output voltage of the one converter is equal to the predetermined reference voltage. The current control loop uses the sensed output current of the one converter as a reference current, compares the reference current with the sensed output current from each of the other resonant converters, generates a frequency adjusting variable, and calculates the individual PWM control signal for each of the other converters so the output currents of the plurality of converters are the same.

Подробнее
Номер записи: 19
01-11-2012 дата публикации

Power generating system

Номер: US20120272650A1
Автор: Hiroshi Ogata
Принадлежит: Ebara Corp

The present invention relates to a power generating system which can recover exhaust heat from a working fluid of a fluid coupling and utilize the recovered exhaust heat to generate power. In the power generating system, water is supplied to a boiler ( 1 ) by a feed pump (BP) to generate steam, a steam turbine ( 2 ) is driven by using the generated steam to generate power, the steam discharged from the steam turbine ( 2 ) is condensed in a condenser ( 4 ), and then the condensed water is resupplied to the boiler ( 1 ) by the feed pump (BP). The power generating system includes a fluid coupling ( 10 ) provided between the feed pump (BP) and a motor (M) to transmit a torque from the motor (M) to the feed pump (BP) by a working fluid, and the condensed water supplied from the condenser ( 4 ) is heated by the working fluid discharged from the fluid coupling ( 10 ).

Подробнее
Номер записи: 20
08-11-2012 дата публикации

Power factor correction circuit

Номер: US20120281448A1
Автор: Xiaoru Xu
Принадлежит: Hangzhou Silergy Semiconductor Technology LTD

The present invention relates to a power factor correction circuit, that can include: an inductor current detector that generates a sampling voltage signal, and sinusoidal half-wave current and voltage signals based on the sampling voltage signal; a mediate signal generator generating slope voltage and clock signals in response to the sinusoidal half-wave voltage signal, where a frequency of each varies with the sinusoidal half-wave voltage signal; a current modulation circuit receiving the sinusoidal half-wave current signal and a voltage feedback signal representative of a power stage output voltage to generate a regulation signal that is compared against the slope voltage signal to generate a modulation signal; and a logic/driving circuit receiving the modulation and clock signals, and generating a controlling signal that controls a power switch with variable frequency to maintain the inductor current in phase with the sinusoidal half-wave voltage signal and the power stage output voltage constant.

Подробнее
Номер записи: 21
29-11-2012 дата публикации

Exhaust heat recovery system, energy supply system, and exhaust heat recovery method

Номер: US20120297774A1
Автор: Shigekazu Uji
Принадлежит: IHI Corp

The object of the present invention is to enhance available energy recovery efficiency compared to an exhaust heat recovery method by generation of water vapor. In order to achieve this object, the present invention adopts a configuration including a thermal conduction path ( 1 ) which conducts exhaust heat, and a high-boiling-point heat medium vapor generator ( 2 ) which generates high-boiling-point heat medium vapor (R 2 ) by heat exchange between the exhaust heat which is conducted through the thermal conduction path ( 1 ) and a high-boiling-point heat medium (R 1 ) that has a higher evaporation temperature than water (R 3 ).

Подробнее
Номер записи: 22
29-11-2012 дата публикации

Method and apparatus for controlling a dc-transmission link

Номер: US20120300510A1
Автор: Kim Hoej Jensen, Ranjan Sharma
Принадлежит: SIEMENS AG

A method for controlling a DC-transmission link for transmitting electric power from a power production unit connected to an AC-DC converter at a first side of the DC-transmission link to a utility grid connected to a DC-AC converter at a second side of the DC-transmission link is provided. The method includes: obtaining a DC voltage signal indicative of a DC voltage at the DC transmission link; controlling the AC-DC converter such that an AC voltage at an AC side of the AC-DC converter is adjusted based on the DC voltage signal. Further, an apparatus for controlling a DC-transmission link is provided.

Подробнее
Номер записи: 23
27-12-2012 дата публикации

Systems and Methods for Operating a Solar Direct Pump

Номер: US20120326649A1
Автор: Amiya Patanaik, Gangaram Posannapeta, Govardhanrao Gariki, Piyush Shroff
Принадлежит: Solar Semiconductor Inc

Systems and methods for operating a solar direct pump are provided. A system for controlling an alternating current (AC) pump includes a photovoltaic module, a temperature sensor that measures a temperature of the photovoltaic module, a calculator that calculates a maximum power point (MPP) voltage of the photovoltaic module based on the temperature of the photovoltaic module, and a frequency controller that adjusts a reference frequency of power supplied to the pump based on the MPP voltage.

Подробнее
Номер записи: 24
10-01-2013 дата публикации

Energy extraction device with electrical generator and method of operating energy extraction device electrical generator

Номер: US20130009612A1
Автор: Daniil Dumnov, Jamie Taylor, Michael Fielding, Niall Caldwell, Stephen Laird, Uwe Stein
Принадлежит: Mitsubishi Heavy Industries Ltd

A wind turbine generator, or other energy extraction device, has a hydraulic circuit comprising a hydraulic pump driven by a rotating shaft and a hydraulic motor driving an electricity generator. When the electricity generator is switched off, it executes one or more pumping cycles to pressurise the high pressure manifold and therefore recover angular kinetic energy from the electricity generator rotor which can later be used to reaccelerate the electricity generator rotor to the correct operating speed for an electricity grid. Overall energy efficiency is increased and the minimum operating high pressure manifold pressure may be reduced as a result.

Подробнее
Номер записи: 25
10-01-2013 дата публикации

Hybrid control techniques for series resonant converter

Номер: US20130010503A1
Автор: Hangseok CHOI
Принадлежит: Individual

A DC to DC converter system, includes inverter circuitry having a first and a second switch, the inverter circuitry further configured to generate a first and a second gate control signal, the signals configured to open and close the first and second switch, respectively, and generate an AC signal from a DC input signal. The system further includes transformer circuitry configured to transform the AC signal into a sinusoidal AC signal, second stage circuitry configured to rectify the sinusoidal AC signal to a DC output signal, and hybrid control circuitry configured to modulate the first and second gate control signals, wherein the modulation comprises pulse frequency modulation (PFM) and pulse width modulation (PWM).

Подробнее
Номер записи: 26
17-01-2013 дата публикации

Power factor correction circuit

Номер: US20130016539A1
Автор: Kohei Nishibori, Nadthawut CHALERMBOON
Принадлежит: Minebea Co Ltd

A power factor correction circuit includes: the first series circuit consisting of the first rectifier element and the first switching element; the second series circuit consisting of the second rectifier element and the second switching element; the first/second reactors; and the first/second current detectors. The first/second current detectors have each the first/second transformers, both primary parts of which consist of the first/second reactors. The first and the second switching elements are controllable based on the first output signal according to the reactor current from the secondary side of the first transformer and the second output signal according to the reactor current from the secondary side of the second transformer so as to apply a desired DC voltage to the load circuit.

Подробнее
Номер записи: 27
24-01-2013 дата публикации

Energy Generation System Using Underwater Storage of Compressed Air Produced by Wind Machines

Номер: US20130019591A1
Автор: Herbert L. Williams
Принадлежит: Individual

An offshore floating wind farm producing compressed air in varying quantities depending on the wind speed, the compressed air being delivered to a large-volume, thin-walled, underwater storage bladder or tank, the compressed air then being delivered to an electricity-generating power plant to power generators as needed. The system may also include an onshore wind farm that produces compressed air in varying quantities depending on wind speed, the compressed air being delivered directly to the power plant. When compressed air production exceeds the needs of the power plant, the excess compressed air is delivered to the underwater storage tank. When onshore production is inadequate, compressed air is brought from the underwater storage tank to the power plant.

Подробнее
Номер записи: 28
31-01-2013 дата публикации

Pipe-in-pipe apparatus, and methods and systems

Номер: US20130025875A1
Автор: Antonio C.F. Critsinelis, Michael Quinney, Miguel Ruiz, Sid A. Mebarkia
Принадлежит: Chevron USA Inc

An apparatus is disclosed which provides fluid communication between the inner bore and the annular space in a pipe-in-pipe system. Other embodiments disclose an apparatus which provides fluid communication between adjacent segments of the annular space, between the inner bore or the annular space and an external source in a pipe-in-pipe type system. Methods and systems are disclosed utilizing the various apparatus embodiments to transport well fluids in an offshore or onshore hydrocarbon production operation.

Подробнее
Номер записи: 29
28-02-2013 дата публикации

Oil supply in renewable energy turbine generator

Номер: US20130049371A1
Автор: Alasdair Robertson, Robert Fox, Uwe Stein, William Rampen
Принадлежит: Mitsubishi Heavy Industries Ltd

A renewable energy turbine generator ( 1 ), such as a wind turbine generator, comprises a hydraulic pump ( 20 ), a hydraulic motor ( 24 ) and an oil circuit ( 26, 28 ) connecting the hydraulic pump and the hydraulic motor. Oil in the low pressure side ( 28 ) of the oil circuit is cooled and supplied to the working chambers ( 95 ) of the hydraulic pump. A reduced temperature oil feed provides additionally cooled oil to the bearings of the hydraulic pump and the hydraulic motor. Thus, cooler and more viscous oil is supplied to the bearings ( 84 ) of the hydraulic pump and/or hydraulic motor and warmer and less viscous oil is supplied to the working chambers, increasing the efficiency and lifetime of the bearings and of the working portions of the hydraulic pump and motor.

Подробнее
Номер записи: 30
21-03-2013 дата публикации

Power supply aging system and load balance control method

Номер: US20130069666A1
Автор: Hon Ki Wong
Принадлежит: Individual

A power supply aging system and a load balance control method. The power supply aging system includes: a system share supply unit ( 201 ) for producing a DC voltage for the need of the system constant current balance, a renewable load unit ( 202 ) for converting a low DC voltage outputted by a unit under test ( 200 ) to a high DC voltage, a DC to AC converting unit ( 203 ) for converting the high DC voltage to the AC voltage needed by the unit under test. The AC voltage is transmitted to the unit under test through a renewable AC bus. The system does not need any isolation transformer or the authorization from power supplying enterprises. The system can balance the DC load sharing, reduce the cost, improve the efficiency of electrical energy feedback and reduce the energy waste.

Подробнее
Номер записи: 31
28-03-2013 дата публикации

Commutator for bridgeless pfc circuit

Номер: US20130077371A1
Автор: Chien-Ta Liang, Marcos Agoo Liquicia, Noel Vea Tangonan, Wendel Rodriguez Apuang
Принадлежит: Compuware Technology Inc

The commutator for a bridgeless PFC circuit is characterized in that a synchronous half-wave rectifier is connected between a bridgeless PFC boost circuit and an AC power source and is coupled to the two terminals of the AC power source. The synchronous half-wave rectifier contains a first synchronous transistor, a second synchronous transistor, and a control circuit.

Подробнее
Номер записи: 32
04-04-2013 дата публикации

Resonant power conversion apparatus

Номер: US20130083564A1
Автор: Ju-Lu Sun, Qiao-Liang CHEN, Yong-Jiang Bai
Принадлежит: Individual

A resonant power conversion apparatus including a transformer-based resonant converter and first and second switch control units is provided. The transformer-based resonant converter includes a primary switch circuit and a secondary output circuit configured to provide an output voltage to a load. The first switch control unit is configured to control an ON/OFF operation of the primary switch circuit in response to a status of the load. The second switch control unit is configured to determine whether to activate or inactivate the first switch control unit. When the status of the load is the light-loading or the no-loading, the first switch control unit intermittently controls the ON/OFF operation of the primary switch circuit, and meanwhile, the first switch control unit is inactivated during the primary switch circuit is disabled, so as to substantially reduce the light-loading or no-loading loss of the resonant power conversion apparatus.

Подробнее
Номер записи: 33
23-05-2013 дата публикации

Wind to electric energy conversion with hydraulic storage

Номер: US20130127170A1
Автор: David McConnell
Принадлежит: Lancaster Wind Systems Inc

A system and method for converting natural resources, such as wind, to electrical energy, where the system is capable of long term energy storage in conditions of low, high or intermittent wind speeds. The system further comprises three closed-loop systems, two hydraulic closed loop systems and one gas system.

Подробнее
Номер записи: 34
23-05-2013 дата публикации

Systems and Methods for Downhole Power Factor Correction

Номер: US20130127388A1
Автор: Dustin B. Campbell, John M. Knapp, Robert D. Allen, William J. Carter
Принадлежит: Individual

Systems and methods for processing power provided to downhole electrical systems such as electric submersible pump motors to increase the power factor of the supplied power. In one embodiment, a system comprises a downhole motor and a power factor corrector. The motor may be coupled to drive an electric submersible pump. The power factor corrector is configured to receive input power, process the received input power using one or more capacitive electrical components and thereby impart a capacitive phase shift between the voltage and the current of the received input power. The processed output power is provided to the downhole motor, which consumes the processed output power with a power factor which is greater than it would have been in the absence of the correction.

Подробнее
Номер записи: 35
30-05-2013 дата публикации

Power generating apparatus of renewable energy type and control method thereof

Номер: US20130134708A1
Автор: Fumio Hamano
Принадлежит: Mitsubishi Heavy Industries Ltd

A power generating apparatus of renewable energy type includes a rotation shaft, a hydraulic pump, a hydraulic motor, a generator and a pitch drive unit. When a fault even occurs, a deviation of a state indicating an operation state from a normal state value is calculated. When the deviation is not less than a first threshold value, the stop control unit performs by means of a hard-wired circuit at least one of switching the hydraulic pump to an idle state, the hydraulic motor to an idle state, and the pitch angle toward a feathering position. When the deviation is less than the first threshold and not less than a second threshold, the stop control unit performs by software control all of switching the hydraulic pump to the idle state, the hydraulic motor to the idle state, and the pitch angle toward the feathering position.

Подробнее
Номер записи: 36
20-06-2013 дата публикации

Power-factor-corrected resonant converter and parallel power-factor-corrected resonant converter

Номер: US20130154372A1
Автор: Han-Hsiang Huang, Lon-Kou Chang, Yi-Wen Huang
Принадлежит: Macroblock Inc

A resonant converter with power factor correction includes a power-obtaining circuit, an energy-storage element and an energy-transferred circuit. The power-obtaining circuit is used for receiving an input line voltage. The energy-storage element is coupled between the power-obtaining circuit and the energy-transferred circuit. The energy-transferred circuit is used for generating an output power. In a first time period, based on a first control signal, the energy-storage element and the power-obtaining circuit operate a soft switching so that the energy-storage element is charged to obtain the input line power and generate an energy-storage voltage. In a second time period, based on a second control signal, the energy-storage element and the energy-transferred circuit operate a soft switching so that the energy-storage element is discharged to make the energy-storage voltage converted into the output power.

Подробнее
Номер записи: 37
20-06-2013 дата публикации

Pulse Width Modulation Controller Architectures

Номер: US20130154602A1
Автор: Karl Jean-Paul Courtel
Принадлежит: Atmel Nantes SA

Systems, apparatuses, and techniques for pulse width modulation (PWM) are described. A described system includes a circuit that contains an inductor and a transistor that controls current through the inductor based on a PWM signal to produce an output; and a controller to provide the PWM signal, which includes PWM cycles that include on-durations and off-durations. The controller can receive a first signal indicating an input voltage that is applied to the inductor, receive a second signal indicating a current through the inductor, use an on-duration parameter value to control the on-duration, determine a maximum off-duration of the off-durations corresponding to the PWM cycles occurring within a first voltage cycle, the first voltage cycle being defined between two consecutive zero-crossing events as indicated by the first signal, and adjust the on-duration parameter value for a second, subsequent voltage cycle based on the maximum off-duration to regulate the output voltage.

Подробнее
Номер записи: 38
27-06-2013 дата публикации

Wind powered energy amplification system and method

Номер: US20130161953A1
Автор: Allen Mark Jones
Принадлежит: Individual

The present invention is comprised of a wind powered energy amplification method and systems for capturing wind power and harvesting tangentially amplified energy. The harvested tangentially amplified energy is converted, processed and stored for use for generating continuous, on demand and stand by electricity to supply electricity. The present invention is further comprised of methods and systems for extracting, processing and storing water and carbon dioxide to supply water and supply carbon dioxide.

Подробнее
Номер записи: 39
27-06-2013 дата публикации

Power module and distributed power supply apparatus having the same

Номер: US20130163288A1
Автор: Chong Eun Kim, Don Sik KIM, Dong Jin Park, Duk You KIM, Gun Woo Moon, Jong Woo Kim
Принадлежит: Samsung Electro Mechanics Co Ltd

There are a power module and a distributed power supply apparatus having the same. The power module includes: a power factor correction stage switching input power to correct a power factor thereof; a DC/DC conversion stage switching the power of which the power factor has been corrected by the power factor correction stage to convert the power into preset DC power; a control unit controlling the power factor correction stage and the DC/DC conversion stage to perform a power conversion operation in a preset powered mode and stopping the power conversion operation of the DC/DC conversion stage in a preset idle mode; and a reference voltage supply unit supplying a preset reference voltage to the DC/DC conversion stage in the idle mode.

Подробнее
Номер записи: 40
04-07-2013 дата публикации

Apparatus and method for altering an operating window of a device

Номер: US20130173027A1
Автор: James Hollister, Kevin R. Imes
Принадлежит: Individual

According to an aspect of the disclosure, a controller configured to detect a current operating window associated with a network device disposed at a site, detect a location of a mobile device associated with a site and alter the current operating window of the network device in response to the detected location. Correspondingly, a method includes detecting a current operating window associated with a network device disposed at a site, detecting a location of a mobile device associated with the site and altering the current operating window of the network device in response to the detected location.

Подробнее
Номер записи: 41
25-07-2013 дата публикации

Capacitor discharging circuit and converter

Номер: US20130188401A1
Автор: BAOCHEN Wang, Hongjian Gan, Hongyuan Jin, Jianping Ying
Принадлежит: Delta Electronics Shanghai Co Ltd

A capacitor discharging circuit and a converter are disclosed. The converter comprises: a capacitor connected between the live line and null line of an AC power input terminals, a conversion module coupled to the capacitor and comprising an energy storage component at least, an energy transfer unit coupled with the energy storage component and the capacitor, an AC power-off detecting unit and a control unit; wherein the energy transfer unit comprises a switch device; when AC power is disconnected, the AC power-off signal triggers the control unit to output a switch driving signal, controlling the operation of the energy transfer unit to transfer the energy stored in the capacitor to the energy storage component to discharge the capacitor.

Подробнее
Номер записи: 42
22-08-2013 дата публикации

Method of maintaining hydraulic pump in a renewable energy turbine generator

Номер: US20130216403A1
Автор: Alasdair Robertson, Henry Dodson, Robert Fox, Stephen Salter, Tom Mcgrath, Uwe Stein
Принадлежит: Mitsubishi Heavy Industries Ltd

A hydraulic pump comprises ( 1 ) an outward ring ( 24 ), including demountable blocks ( 30 ) comprising piston cylinders ( 32 ), and an inward ring ( 21 ), comprising a ring cam ( 23 ), coupled through a drive shaft ( 8 ) to the blades of a turbine ( 4 ). To enable maintenance, the outward ring is decoupled from a torque limiting device ( 16, 17 ) and rotated relative to the inward ring. Demountable blocks are then removed from the outward ring using a crane ( 61 ) including a line ( 62 ) extending from above the centre of mass of the demountable block and including a resilient portion ( 66 ) so that although the crane supplies the majority of the force required to remove the demountable block, an operator provides some force, enabling the process to be controlled. The method is suitable for maintaining large hydraulic pumps in wind turbine nacelles ( 2 ).

Подробнее
Номер записи: 43
12-09-2013 дата публикации

Method and Apparatus for Mixing, Transporting, Storing, and Transferring Thixotropic Fluids in One Container

Номер: US20130233393A1
Автор: Paul Kageler
Принадлежит: Halliburton Energy Services Inc

A method for mixing, transporting, storing, and transferring a thixotropic fluid is disclosed. The method includes mixing a thixotropic fluid. The thixotropic fluid may be built within a fluid container that includes an agitation unit. Once it has gelled, the thixotropic fluid can be sheared using the agitation unit, which may be mounted within the fluid container. The thixotropic fluid can then be pumped out of the fluid container.

Подробнее
Номер записи: 44
12-09-2013 дата публикации

Wind turbine generator system and operation control method thereof

Номер: US20130234433A1
Автор: Daniil Dumnov, Kazuhisa Tsutsumi, Masayuki Shimizu, Niall Caldwell, Venkata Pappala, William Rampen
Принадлежит: Mitsubishi Heavy Industries Ltd

An object of the present invention is to provide a wind turbine generator system and an operation control method thereof, which has a superior operation efficiency and stability at a low wind speed and during the occurrence of a gust and is equipped with Ride Through function at Grid low voltage condition. The wind turbine generator comprises a hydraulic pump of a variable displacement type which is rotated by the main shaft, a hydraulic motor of a variable displacement type which is connected to the generator, and a high pressure oil line and a low pressure oil line which are arranged between the hydraulic pump and the hydraulic motor. An accumulator is connected to the high pressure oil line via an accumulator valve. ACC valve control unit controls opening and closing of the accumulator valve based on at least one of wind speed and the state of the grid.

Подробнее
Номер записи: 45
03-10-2013 дата публикации

Power Factor

Номер: US20130261822A1
Автор: Balakrishnan Narayanaswamy, Devasenapathi P. Seetharamakrishnan, Jagabondhu Hazra, Liyanage Chandratilak De Silva
Принадлежит: International Business Machines Corp

A method, an apparatus and an article of manufacture for improving power factor. The method includes collecting consumption data of at least one appliance, building a consumption profile for each of the at least one appliance based on the consumption data collected, reconstructing reactive power consumption of each of the at least one appliance based on the consumption profile for each of the at least one appliance, and computing a schedule for each of the at least one appliance in accordance the reactive power consumption of each of the at least one appliance to improve power factor while respecting at least one constraint.

Подробнее
Номер записи: 46
31-10-2013 дата публикации

Power supplying apparatus and power charging apparatus

Номер: US20130285621A1
Автор: Bu Won Lee, Won Jin Cho, Young Jin Cho
Принадлежит: Samsung Electro Mechanics Co Ltd

There are provided a power supplying apparatus controlling voltage of a power factor correcting circuit according to a power state and a power charging apparatus controlling voltage of a power factor correcting circuit according to a charging state of a battery. The power supplying apparatus includes: a power factor correcting circuit switching input power to correct a power factor thereof and adjusting a voltage level of the power of which the power factor has been corrected according to a state of power transferred to a load; and a resonant DC to DC converting circuit having a resonance frequency varied according to a voltage level of DC power from the power factor correcting circuit and converting the DC power from the power factor correcting circuit into supply power having a preset level according to the resonance frequency.

Подробнее
Номер записи: 47
21-11-2013 дата публикации

Ac motor drive device

Номер: US20130307462A1
Автор: Kazuya Nakamura, Manabu Ohashi
Принадлежит: Mitsubishi Electric Corp

A circuit disconnection element that can open or short-circuit between a power storage element and a step-up/step-down bidirectional chopper circuit is provided in a power storage system, thereby preventing a self-discharge state in a process of charging. Furthermore, at the time of occurrence of an abnormality, the power storage element is detached from other devices including the step-up/step-down bidirectional chopper circuit. Accordingly, an energy loss of the power storage element at the time of power regeneration can be reduced to improve the energy use efficiency. Further, breakage influences such that the power storage element causes breakage in other devices at the time of occurrence of the abnormality can be prevented, thereby enabling to obtain an AC motor drive device having mounted therein a highly safe power storage system.

Подробнее
Номер записи: 48
21-11-2013 дата публикации

Zero-Crossing Detector for Industrial Control with Low Heat Dissipation

Номер: US20130307586A1
Автор: Dale Terdan, John O'Connell
Принадлежит: Rockwell Automation Technologies Inc

An I/O circuit for use with an industrial controller provides a zero-crossing detector circuit with low power dissipation through the use of a zero-crossing circuit that activates a light emitting diode of a photo coupler only for a very brief period of time at the zero-crossing (as opposed to at all times other than the zero-crossing). The circuit is coupled with a power supply circuit that uses a reactive element for voltage dropping as opposed to a resistive voltage drop element further reducing power consumption possible with the low power consumption of the photo coupler.

Подробнее
Номер записи: 49
28-11-2013 дата публикации

Transport carriage system and method for controlling running of transport carriage

Номер: US20130317675A1
Автор: Hajime Sato, Takeshi Murakami, Tsuyoshi Kumazawa
Принадлежит: Murata Machinery Ltd

In a transport carriage system, multiple transport carriages travel along a common track and each transport carriage includes a servo system that performs servo control with respect to traveling of the transport carriage, and an intermediate instruction of the servo system is generated in a predetermined cycle by an acceleration/deceleration control unit of a traveling control unit. A smoothed instruction is generated for the predetermined cycle by smoothing the generated intermediate instruction over a plurality of cycles with a smoothing unit of the traveling control unit, and the servo system is controlled based on the smoothed instruction that was generated.

Подробнее
Номер записи: 50
26-12-2013 дата публикации

Fuel efficiency optimization for microgrid systems employing multiple generators

Номер: US20130342020A1
Автор: Gregory Brainard, William Mark Blevins
Принадлежит: Honeywell International Inc

A system designed to optimize fuel efficiency of a power grid includes a set of controllable generators designed to supply power to the power grid. Each generator in the set is associated with a controller, a set of loads designed to draw power from the power grid, and a grid controller designed to provide a load partitioned configuration for the set of controllable generators, based at least partly on the power draw of the set of loads.

Подробнее
Номер записи: 51
16-01-2014 дата публикации

Switching power supply device

Номер: US20140016364A1
Автор: Jian Chen
Принадлежит: Fuji Electric Co Ltd

In some aspects of the invention, a load state detecting circuit is configured so that a threshold voltage for determining the size of a load of a DC-DC converter is set in the load state detecting circuit based on a maximum value of an output voltage of a power factor correction converter in an operation-stopped state of the power factor correction converter, so that the load state detecting circuit outputs an operation-enable signal when a feedback voltage indicating the size of the load of the DC-DC converter exceeds the threshold voltage. Thus, by way of some aspects of the invention, it is possible to provide a switching power supply device which can control enabling and stopping operation of a power factor correction converter reliably in accordance with a load state of a DC-DC converter obtaining a predetermined DC output voltage by switching an output voltage of the correction converter.

Подробнее
Номер записи: 52
23-01-2014 дата публикации

Power generating system

Номер: US20140020387A1
Автор: Akihiro Taniguchi, Katsuya Yamashita, Kazuo Takahata, Mikhail Rodionov, Mikio TAKAYAMAGI, Mohammad Ashari HADIANTO, Nobuo Okita, Osamu Furuya
Принадлежит: Toshiba Corp

In one embodiment, a power generating system includes; a flow dividing unit configured to divide a first heat medium supplied thereto to a first flow path and a second flow path; and a heat accumulating unit configured to accumulate the first heat medium sent thereto via the second flow path and deliver the first heat medium at a temporally leveled flow rate. The system further includes: a heat exchanging unit configured to transfer heat from the first heat medium sent thereto via the first flow path and the first heat medium delivered thereto from the heat accumulating unit, to a second heat medium that is lower in boiling point than the first heat medium; and a turbine configured to rotationally move with the second heat medium to which heat has been transferred by the heat exchanging unit.

Подробнее
Номер записи: 53
23-01-2014 дата публикации

System and method for using a chilled fluid to cool an electromechanical machine

Номер: US20140020426A1
Автор: James Michael Fogarty, Rebecca Ann Nold, Richard Anthony Depuy, William Hunter Boardman, IV
Принадлежит: General Electric Co

A system includes an air separation unit configured to generate a chilled fluid. The system also includes an electromechanical machine configured to be cooled via heat exchange with the chilled fluid.

Подробнее
Номер записи: 54
30-01-2014 дата публикации

Motor drive overcurrent detecting circuit, motor driving circuit without headroom voltage loss, and method for detecting overcurrent in motor driving circuit

Номер: US20140028234A1
Автор: Joo Yul Ko, Soo Woong Lee
Принадлежит: Samsung Electro Mechanics Co Ltd

The present invention relates to a motor drive overcurrent detecting unit, a motor driving circuit without a headroom voltage loss, and a method for detecting an overcurrent in a motor driving circuit. The motor drive overcurrent detecting circuit includes: a motor driving unit switched according to a driving control signal to drive a motor; a sensing unit for distributing a sensing current from the current flowing through the motor according to turn-on of a distribution switching element and sensing the distribution current through a sensing resistor; and an on-resistance maintaining unit for maintaining on-resistance of the turned-on distribution switching element by turning on the distribution switching element. Further, a motor driving circuit without a headroom voltage loss and a method for detecting an overcurrent in a motor driving circuit are provided.

Подробнее
Номер записи: 55
06-02-2014 дата публикации

Meterless hydraulic system having force modulation

Номер: US20140033689A1
Автор: Patrick Opdenbosch
Принадлежит: Caterpillar Inc

A hydraulic system is disclosed. The hydraulic system may have a pump configured to draw low-pressure fluid from one of a first passage and a second passage and discharge fluid into the other of the first and second passages, and an actuator coupled to the pump via the first and second passages. The hydraulic system may also have at least a first control valve fluidly connected between the first and second passages to selectively direct fluid from one of the first and second passages to bypass the pump and flow into the other of the first and second passages. The hydraulic system may further have at least a second control valve fluidly connected in parallel with the at least a first control valve to selectively direct fluid from one of the first and second passages to bypass the actuator and flow into the other of the first and second passages.

Подробнее
Номер записи: 56
06-02-2014 дата публикации

Motor driving apparatus

Номер: US20140035494A1
Автор: Joo Yul Ko
Принадлежит: Samsung Electro Mechanics Co Ltd

There is provided a motor driving apparatus capable of optimizing driving efficiency by adjusting a phase difference between current applied to a motor and voltage detected from the motor and performing the adjustment of the phase difference when a pulse width modulation (PWM) signal has a set duty. The motor driving apparatus includes: a driving unit driving a motor according to driving control; a driving controlling unit controlling the driving of the motor by the driving unit, based on an adjusted phase correction signal; and a phase correcting unit correcting a phase difference between a motor detection signal having motor rotation speed information and a current detection signal having detection information regarding current flowing in the motor when a duty of a pulse width modulation (PWM) signal driving the motor satisfies a preset reference duty, and providing the phase correction signal to the driving controlling unit.

Подробнее
Номер записи: 57
20-02-2014 дата публикации

Method and apparatus for delivering power using external data

Номер: US20140049109A1
Автор: Ben KEARNS, Drew STEVENS, Jon BURLINSON
Принадлежит: Stem Inc

A control system for an energy storage system located behind a utility meter uses a unique, feedback-based, communication and control method to reliably and efficiently maximize economic return of the energy storage system. Operating parameters for the energy storage system are calculated at an external, centralized data center, and are selected to prevent electrical power demand of an electric load location from exceeding a specified set-point by discharging energy storage devices, such as DC batteries, through a bidirectional energy converter during peak demand events. The control system can operate autonomously in the case of a communications failure.

Подробнее
Номер записи: 58
27-02-2014 дата публикации

Power generator

Номер: US20140054898A1
Автор: Michael John Urch
Принадлежит: Elemental Energy Technologies Ltd

A power generator assembly for using kinetic energy from a flowing fluid to generate power. The power generator assembly includes a blade assembly and a generator. The blade assembly has a head end for facing oncoming flowing fluid, a tail end spaced from the head end for facing in the direction of flow of the fluid, and a rotational axis extending between the head end and the tail end. The blade assembly includes a blade arrangement which is arranged in generally helical fashion about the rotational axis, and at least one mounting formation connected to the blade arrangement. Each mounting formation is adapted to permit mounting of the blade assembly for rotation about its rotational axis, so that in use fluid flowing past the power generator assembly interacts with the blade arrangement to rotate the blade assembly about its rotational axis. The generator is drivingly connected to the blade assembly for generating power in response to rotation of the blade assembly.

Подробнее
Номер записи: 59
27-02-2014 дата публикации

Uninterruptible power supply system

Номер: US20140054967A1
Автор: Masaru Toyoda
Принадлежит: Toshiba Mitsubishi Electric Industrial Systems Corp

An uninterruptible power supply system, including: a plurality of uninterruptible power supply devices which are connected in parallel with respect to a load, and switch between power supplies supplying power to the load depending on states of the power supplies; a control unit controlling an operation of switching between the power supplies by the uninterruptible power supply devices; and a storage battery connected to the plurality of uninterruptible power supply devices in common. The uninterruptible power supply device has a converter converting AC power of an AC power supply into DC power, a contactor switching between the DC power converted by the converter and DC power input from the storage battery, and an inverter inverting the DC power into AC power and supplying the power to the load. The control unit deactivates the converter which does not contribute to supplying a power amount required for the load, of a plurality of converters.

Подробнее
Номер записи: 60
06-03-2014 дата публикации

Motor control device and motor control method

Номер: US20140062360A1
Автор: Takahisa Toda, Yo Muramatsu
Принадлежит: Sanyo Denki Co Ltd

A motor control device includes an energization pattern output portion and an inverter circuit. The energization pattern output portion cyclically outputs a plurality of energization patterns. The inverter circuit selectively connects respective coils provided in a motor to a rectifier circuit according to the output energization pattern. The energization pattern output portion delays the output timing of the energization pattern according to a rotation speed of the motor.

Подробнее
Номер записи: 61
10-04-2014 дата публикации

Ups with multiple independent static switches

Номер: US20140097680A1
Автор: George Arthur Navarro
Принадлежит: Eaton Corp

An uninterruptible power supply (UPS) includes a frame, at least one AC input supported by the frame and configured to be coupled to at least one external power source and at least one AC output supported by the frame and configured to be coupled to at least one external load. The UPS also includes a power conversion circuit supported by the frame and having an output coupled to the at least one AC output, the power conversion circuit configured to selectively provide power from first and second power sources. The UPS further includes first and second static switches supported by the frame and configured to couple and decouple the at least one AC input to and from the at least one AC output and a control circuit supported by the frame and configured to cooperatively control the power conversion circuit and the first and second static switches.

Подробнее
Номер записи: 62
05-01-2017 дата публикации

Unpressurized heat accumulator with compensation line

Номер: US20170003037A1
Автор: Andre Grobstich, Michael Schottler
Принадлежит: SIEMENS AG

A heat accumulator for storing and providing heat energy accruing when power is generated, includes a tank for a fluid, including an expansion line, which exits from the tank and which extends above the tank in order to increase the static pressure in the tank, the expansion line having an open end opposite the tank-side end for establishing a connection between the tank interior and the atmosphere, wherein the expansion line extends into the tank. A method for storing and providing heat energy accruing when power is generated wherein the fluid is used in a district heating grid and is stored in a tank.

Подробнее
Номер записи: 63
02-01-2020 дата публикации

METHOD AND APPARATUS FOR OPTIMIZING SELF-POWER CONSUMPTION OF AN ELECTRONIC DEVICE

Номер: US20200005407A1
Автор: Ofek Eran
Принадлежит: Volpe and Koenig, P.C.

A device and method are disclosed for optimizing self-power consumption. The device may sense one or more operating conditions of the device. The device may further select one or more operating parameters associated with at least one of the one or more operating conditions. The device may also estimate a power consumption associated with executing an algorithm to generate at least one updated value for at least one of the one or more operating parameters as well as estimate a power savings associated with operating using the updated value. The device may compare the estimated power consumption to the estimated power savings and determine whether to execute the algorithm based on the comparing. 1. A method of reducing self-power consumption of an electronic device , the method comprising:selecting an operating parameter of the electronic device to update;estimating a first estimated power consumed by the electronic device when executing a first algorithm, wherein the first algorithm generates a first updated value for the selected operating parameter;estimating a second estimated power consumed by the electronic device when executing a second algorithm, wherein the second algorithm generates a second updated value for the selected operating parameter;estimating a first estimated power saved resulting from operating the electronic device using the first updated value;estimating a second estimated power saved resulting from operating the electronic device using the second updated value;calculating a first power difference and a second power difference, wherein the first power difference is a difference between the first estimated power saved and the first estimated power consumed, and wherein the second power difference is a difference between the second estimated power saved and the second estimated power consumed;selecting the first algorithm on a condition that the first power difference is greater than the second power difference and selecting the second algorithm ...

Подробнее
Номер записи: 64
02-01-2020 дата публикации

Water Production Employing a Hydrogen Cycle

Номер: US20200006942A1
Автор: Lawrence D. Lansing P.E., Lawrence D. Lansing, JR.
Принадлежит: Lawrence D. Lansing P.E., Lawrence D. Lansing, JR.

A system for producing potable water from a non-potable water source includes a renewable energy power generator, a water purifier fluidly connected to the non-potable water source for providing the potable water, and electrically coupled to the renewable power generator, a hydrogen generator electrically coupled to the renewable energy power generator and fluidly connected to the water purifier for receiving a portion of the potable water, a hydrogen fueled turbine generator fluidly coupled to the hydrogen generator, a hydrogen storage system fluidly coupled to the hydrogen generator and the hydrogen fueled turbine generator, and a control system communicatively coupled to the renewable energy power generator, the non-potable water source, the water purifier, the hydrogen generator and the hydrogen fueled turbine generator. The control system controls feed of the non-potable water source to the water purifier to produce a desired quantity of the potable water, and the portion of the potable water to the hydrogen generator produces hydrogen to power the hydrogen fueled turbine generator to provide a portion of electric power when the renewable energy power generator is unable to produce the portion.

Подробнее
Номер записи: 65
11-01-2018 дата публикации

Heat Supply System

Номер: US20180010809A1
Автор: Yoshitaka Shibata
Принадлежит: Osaka Gas Co Ltd

A heat supply system with a first temperature detection unit that detects a first temperature of hot water in a tank, and a second temperature detection unit that detects a second temperature above the first temperature detection unit. When the first temperature is a first lower limit temperature or less, where a temperature increase operation by a combined heat and power supply device is permitted, a control device operates the combined heat and power supply device and flow state adjustment devices such that a heat medium circulates between the combined heat, power supply device, and hot water storage device. When the second temperature is a second lower limit temperature or less, where a temperature increase operation by a boiler device is permitted, the control device operates the boiler device and the flow state adjustment devices such that the heat medium circulates between the boiler device and hot water storage device.

Подробнее
Номер записи: 66
15-01-2015 дата публикации

Method for operating a power factor correction circuit

Номер: US20150015217A1
Автор: Martin Feldtkeller, Martin Krueger
Принадлежит: INFINEON TECHNOLOGIES AG

A method for operating a power factor correction circuit is provided which may include the steps of providing a plurality of N switched-mode converter circuits each comprising an nth inductor, where N is at least 2, starting a switching pulse for the nth switched-mode converter circuit when the following conditions are fulfilled: the nth inductor of the nth switched-mode converter circuit has a predefined magnetization state; and a predefined time period has elapsed since the start of a switching pulse for an mth switched-mode converter circuit, where m=n−1 in case n>1 and m=N in case n=1. The predefined time period is a predefined fraction of the time period from the start of a previous switching pulse for the nth switched-mode converter circuit to a time when the nth inductor of the nth switched-mode converter circuit has the predefined magnetization state.

Подробнее
Номер записи: 67
09-01-2020 дата публикации

Control circuit and control method for outputting pulse width modulation control signal with zero-crossing detection

Номер: US20200014296A1
Автор: Hongbao Wang, Hongyuan Jin, Kang GUO
Принадлежит: Delta Electronics Shanghai Co Ltd

The present disclosure provides a control circuit, where the control circuit includes: a signal detection unit, a zero-crossing detection (ZCD) signal acquisition unit, a pulse width modulation (PWM) control signal generation unit, and a signal processing unit; where the signal detection unit, the ZCD signal acquisition unit, the PWM control signal generation unit and the signal processing unit are connected in cascade. The control circuit provided in the present disclosure reduces processing delay of a ZCD signal and improve signal a processing accuracy of a power factor correction (PFC) system.

Подробнее
Номер записи: 68
15-01-2015 дата публикации

Energy management server, energy management method, and program

Номер: US20150019036A1
Автор: Dai Murayama, Masaaki Saito, Nagako HISADA, Yutaka Iino
Принадлежит: Toshiba Corp

According to an embodiment, management server includes estimator, scheduler, acquisition unit, monitoring unit, receiver and setting unit. Estimator calculates estimated value of energy demand in building with electric appliance. Scheduler creates schedule of appliance based on estimated value. Acquisition unit acquires actual value of energy demand. Monitoring unit monitors error between estimated value and actual value. Receiver receives DR signal containing information which prompts suppression of energy consumption in a designated period. Setting unit sets threshold. Estimator recalculates estimated value if error is equal or more than threshold. Scheduler reforms schedule based on the recalculated estimated value.

Подробнее
Номер записи: 69
16-01-2020 дата публикации

SYSTEMS AND METHODS FOR MONITORING AND REMOTELY BALANCING MOTORS

Номер: US20200019154A1
Автор: Cella Charles Howard, Desai Mehul, Duffy, Jr. Gerald William, McGuckin Jeffrey P.
Принадлежит:

Systems and methods for monitoring and remote balancing a motor are disclosed. An exemplary system may include a plurality analog sensors operationally coupled to a motor, an analog switch communicatively coupled to at least one of analog sensors, wherein a first analog sensor input is a trigger channel and a second is an input channel. The analog switch may digitally derive a relative phase between the trigger channel and the input channel using a phase-lock loop (PLL) band-pass tracking filter on at least one of the analog sensor channels to obtain one of slow-speed rotations per minute (RPMs) or phase information for the motor. A response circuit may recommend a change in a process or an operating parameter of the motor to remotely balance the motor based on one or more of the slow-speed RPMs or the phase information. 1. A remote balancing system , comprising:a plurality of variable groups of analog sensor inputs, each of the plurality of variable groups of analog sensor inputs operationally coupled to a motor,an analog switch comprising a plurality of analog sensor channels, wherein each of the plurality of analog sensor channels is communicatively coupled to at least one of the plurality of variable groups of analog sensor inputs, wherein a first one of the plurality of analog sensor channels comprises a trigger channel and wherein a second one of the plurality of analog sensor channels comprises an input channel;wherein the analog switch comprises an on-board timer, and wherein the analog switch is configured to digitally derive a relative phase between the trigger channel and the input channel in response to the on-board timer, and wherein the analog switch is further configured to use a phase-lock loop (PLL) band-pass tracking filter on at least one of the plurality of analog sensor channels to obtain one of slow-speed rotations per minute (RPMs) or phase information for the motor operatively coupled to at least one of the variable groups of analog sensor ...

Подробнее
Номер записи: 70
16-01-2020 дата публикации

SYSTEMS AND METHODS FOR BALANCING REMOTE MOTORS

Номер: US20200019155A1
Автор: Cella Charles Howard, Desai Mehul, Duffy Gerald William, McGuckin Jeffrey P.
Принадлежит:

Systems and methods for monitoring a pump and a fan are disclosed. A monitoring system for a pump may include an industrial system including a pump, a data acquisition circuit to interpret a plurality of detection values corresponding to at least one of a plurality of input sensors operationally coupled to the pump and communicatively coupled to the data acquisition circuit. A monitoring system may further include a signal evaluation circuit including a timer circuit to generate at least one timing signal and a phase detection circuit structured to determine a relative phase difference between at least one of the detection values and at least one of the timing signals from the timer circuit. A response circuit may perform at least one operation in response to the relative phase difference. 1. A monitoring system for a pump , the system comprising:an industrial system comprising a pump;a data acquisition circuit structured to interpret a plurality of detection values, each of the plurality of detection values corresponding to at least one of a plurality of input sensors operationally coupled to the pump and communicatively coupled to the data acquisition circuit; a timer circuit structured to generate at least one timing signal; and', 'a phase detection circuit structured to determine a relative phase difference between at least one of the plurality of detection values and at least one of the timing signals from the timer circuit; and, 'a signal evaluation circuit comprisinga response circuit structured to perform at least one operation in response to the relative phase difference.2. The system of claim 1 , wherein the response circuit is further structured to perform the at least one operation in response to a change in frequency or relative phase of at least one of the plurality of detection values.3. The system of claim 2 , wherein the signal evaluation circuit is further structured to utilize a phase lock loop (PLL) to determine the change in the frequency or ...

Подробнее
Номер записи: 71
22-01-2015 дата публикации

Power gating in hazard detection systems

Номер: US20150021997A1
Автор: Brian Jonathan Conner, Daniel Adam Warren, Ian C. SMITH, Scott Mullins
Принадлежит: Google LLC

Hazard detection systems according to embodiments described herein are operative to provide failsafe safety detection features and user interface features using circuit topology and power budgeting methods that minimize power consumption. The safety detection features can monitor environmental conditions (e.g., smoke, heat, humidity, carbon monoxide, carbon dioxide, radon, and other noxious gasses) in the vicinity of the hazard detection system associated and alarm occupants when an environmental condition exceeds a predetermined threshold.

Подробнее
Номер записи: 72
22-01-2015 дата публикации

Power quality differentiation in hazard detection systems

Номер: US20150022026A1
Автор: Brian Jonathan Conner, Daniel Adam Warren, Ian C. SMITH, Scott Mullins
Принадлежит: Google LLC

Hazard detection systems according to embodiments described herein are operative to provide failsafe safety detection features and user interface features using circuit topology and power budgeting methods that minimize power consumption. The safety detection features can monitor environmental conditions (e.g., smoke, heat, humidity, carbon monoxide, carbon dioxide, radon, and other noxious gasses) in the vicinity of the hazard detection system associated and alarm occupants when an environmental condition exceeds a predetermined threshold.

Подробнее
Номер записи: 73
22-01-2015 дата публикации

Power-factor correction circuit

Номер: US20150023067A1
Автор: Yoichi Terasawa
Принадлежит: Sanken Electric Co Ltd

The present invention includes: a series circuit including a reactor and a switching element connected between the rectified-current output terminals of a rectifier; a series circuit including a diode and a smoothing capacitor for obtaining an output voltage, connected in parallel to the switching element; an error amplifier configured to detect the output voltage, amplify the error between the detected output voltage and a reference voltage, and output an error signal; a zero-current detector configured to output a signal when detecting that a reactor current flowing in the reactor has become zero current; a correction signal circuit configured to detect a switching current flowing in the switching element, and generate a correction signal corresponding to the detected switching current; and an ON-period control circuit configured to control the switching element's ON period in accordance with the error signal and correction signal, from when the zero-current detector detects the zero current.

Подробнее
Номер записи: 74
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: 75
04-02-2016 дата публикации

Method and apparatus for industrial robotic energy saving optimization using fly-by

Номер: US20160031083A1
Автор: Ambroise Confetti, Etienne Ferre, Guillaume Ginioux, Lisandro Embon, Matthias Frische, Moshe Hazan
Принадлежит: Siemens Industry Software Ltd Israel

Methods for optimizing energy savings and reducing cycle time for mutating an industrial robotic path when a collision is detected. A method includes initializing a plurality of clone paths where a collision was detected, wherein a clone path is a clone of the initial path and the initial path comprises a source location, a plurality of intermediate locations, and a target location; for each clone path, determining a candidate path to store in a population, determining an optimal breed comprising the candidate path with an optimal rating, wherein the optimal rating is determined by the lowest breed rating in the population, and returning the optimal breed.

Подробнее
Номер записи: 76
24-04-2014 дата публикации

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

Номер: US20140114844A1
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: 77
04-02-2016 дата публикации

Variable speed generator and motor

Номер: US20160036367A1
Автор: Brendan TAYLOR, John Mccall, Mark Preston
Принадлежит: Innovus Power Inc

A system for supplying power to a motor driven pump. The system includes a variable speed electrical generator driven by an engine and a variable frequency drive connected to the output of the generator. The motor is powered by the output of the variable frequency drive. The system also includes a controller for changing the frequency of the output of the variable frequency drive and thereby changing the speed of the motor and the pump.

Подробнее
Номер записи: 78
01-02-2018 дата публикации

RESONANT CONVERTER AND DRIVING METHOD THEREOF

Номер: US20180034261A1
Автор: BAEK Hyeong Seok, Choi Hang-Seok, JANG Ji-Hoon, LEE Won-Tae
Принадлежит: FAIRCHILD KOREA SEMICONDUCTOR LTD.

A resonant converter includes a first switch on the primary side and a second switch coupled to the first switch, a synchronization rectification switch on a secondary side configured to conduct during a conduction period in response to a switching operation of the first switch, and a switch control circuit configured to determine an operating region of the resonant converter to be below resonance based on a result of a comparison between the conduction period and an on period of the first switch. 1. A switch control circuit for a resonant converter , the switch control circuit comprising:a first driver circuit configured to drive a first switch on a primary side;a second driver circuit configured to drive a first synchronous rectification switch on a secondary side; anda below resonance detection circuit configured to determine that an operating region of the resonant converter is below resonance based on a result of a comparison between a conduction period of the first synchronous rectification switch and an on period of the first switch.2. The switch control circuit of claim 1 , wherein the below resonance detection circuit is configured to determine that the operating region of the resonant converter is below resonance when a state in which the conduction period of the first synchronous rectification switch is shorter than the on period of the first switch is maintained during a first debounce time.3. The switch control circuit of claim 1 , wherein the below resonance detection circuit is configured to determine that the operating region of the resonant converter is not below resonance when a state in which the conduction period of the first synchronous rectification switch is longer than the on period of the first switch is maintained during a second debounce time.4. The switch control circuit of claim 1 , wherein the below resonance detection circuit is configured to generate a below detection signal indicative of below resonance operation based on a maximum ...

Подробнее
Номер записи: 79
01-02-2018 дата публикации

UPS Systems and Methods Using Dual Mode Rectifier/Inverter

Номер: US20180034315A1
Автор: Navarro George Authur
Принадлежит:

An uninterruptible power supply (UPS system) includes a first converter circuit, a second converter circuit and a DC bus coupled to the first and second converter circuits. The system further includes a control circuit configured to control the first and second converter circuits and to selectively couple the first and second converter circuits to an AC source and a load to provide a first mode of operation wherein the first and second converter circuits respectively operate as a rectifier and an inverter to serve the load from the AC source and a second mode of operation wherein the first and second converter circuits operate as parallel inverters to serve the load from the DC bus. The control circuit may be configured to couple the AC source to the load to bypass the first and second converter circuits in a third mode of operation. 1. A method comprising:providing an uninterruptible power supply (UPS) comprising an AC input, an AC output, a first converter circuit having a first port configured to be coupled to the AC input, a second converter circuit having a first port configured to be coupled to the AC output and a DC bus coupling second ports of the first and second converter circuits;connecting a first switch between the AC input and the AC output of the UPS;connecting a second switch between an AC source and the AC input of the UPS; andcontrolling the UPS, the first switch and the second switch to provide a first mode of operation wherein the first and second converter circuits respectively operate as a rectifier and inverter coupled between the AC input and the AC output and a second mode of operation wherein the first and second converter circuits operate as parallel inverters coupled between the DC bus and the AC output.2. The method of claim 1 , wherein the first switch is open and the second switch is closed in the first mode of operation and wherein the first switch is closed and the second switch is open in the second mode of operation.3. The method ...

Подробнее
Номер записи: 80
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: 81
11-02-2016 дата публикации

Passive soft-switching circuit of power factor correctors

Номер: US20160043630A1
Автор: Tsung-Liang Hung, Yeu-Torng Yau
Принадлежит: Asian Power Devices Inc

A passive soft-switching circuit of a power factor corrector is provided. The passive soft-switching circuit includes a power input terminal, a first inductor, a first diode, a power output terminal, a power switch and a buffer circuit. The first inductor has a first terminal and a second terminal, wherein the first terminal of the first inductor is electrically coupled with the power input terminal. The first diode has a positive terminal and a negative terminal, wherein the positive terminal of the first diode is electrically coupled with the second terminal of the first inductor. The power output terminal is electrically coupled with the negative terminal of the first diode. The buffer circuit is electrically coupled with the power switch. By using the buffer circuit, the voltage and current have phase interlacing shifts and thereby reducing the switching loss.

Подробнее
Номер записи: 82
09-02-2017 дата публикации

Control Of A Microgrid

Номер: US20170040800A1
Автор: Ritwik MAJUMDER
Принадлежит: ABB Schweiz AG

A microgrid having a plurality of electrical phases A, B & C. The microgrid includes an energy storage connected to a first phase A and a second phase B. The microgrid also includes a first single-phase distributed generator (DG) connected to the first phase and configured for injecting power into the first phase. The microgrid also includes a second single-phase DG connected to the second phase and configured for injecting power into the second phase. The microgrid also includes a first single-phase load connected to the first phase. The microgrid also includes a second single-phase load connected to the second phase. The microgrid also includes a control system configured for controlling the microgrid such that power is redistributed from the second phase to the first phase via the energy storage.

Подробнее
Номер записи: 83
12-02-2015 дата публикации

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

Номер: US20150046306A1
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, 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: 84
07-02-2019 дата публикации

Methods and systems for network-sensitive data collection and intelligent process adjustment in an industrial environment

Номер: US20190041836A1
Автор: Charles Howard CELLA, Gerald William Duffy, Jr., Jeffrey P. MCGUCKIN, Mehul Desai
Принадлежит: Strong Force IoT Portfolio 2016 LLC

An apparatus, methods and systems for monitoring network-sensitive data collection related to an industrial production process are disclosed. The system may include a data collector communicatively coupled to a plurality of input channels and to a network infrastructure, a data storage circuit structured to store a plurality of collector routes wherein the data collector receives collected data utilizing a selected collector route, a data analysis circuit structured to determine a data collection quality parameter and a state value of the industrial production process, a pattern recognition circuit structured to determine an identified pattern in response to at least a portion of the collected data and at least one of the state value or the data collection quality parameter, and an analysis response circuit structured to adjust one of the collector routes or the industrial production process in response to the identified pattern.

Подробнее
Номер записи: 85
07-02-2019 дата публикации

Methods and systems for detection in an industrial internet of things data collection environment with expert system detection and process response for oil and gas processing operations

Номер: US20190041843A1
Автор: Charles Howard CELLA, Gerald William Duffy, Jr., Jeffrey P. MCGUCKIN, Mehul Desai
Принадлежит: Strong Force IoT Portfolio 2016 LLC

Methods and systems for a monitoring system for data collection in an industrial environment including a data collector communicatively coupled to a plurality of input channels connected to data collection points operationally coupled to an industrial component in at least one of an oil processing system or gas processing system; a data storage structured to store a plurality of stored process condition states; a data acquisition circuit structured to interpret a plurality of detection values from the collected data; an expert system detection circuit structured to detect a process condition in response to the plurality of detection values, wherein the expert system detection circuit generates a process condition notification if a process condition is detected that matches one of the plurality of stored process condition states; and a response circuit structured to provide an alert in response to the process condition notification.

Подробнее
Номер записи: 86
24-02-2022 дата публикации

Switch-mode ac-dc power converter for reducing common mode noise

Номер: US20220060112A1
Автор: Kim Ly Kha, Siu Chik WONG, Zhihua GU
Принадлежит: Astec International Ltd

A switch-mode AC-DC power converter includes a pair of input terminals, a pair of output terminals, and four switches coupled in a bridgeless totem-pole circuit arrangement between the pair of input terminals and the pair of output terminals. A control circuit is coupled to the four switches and configured to, during a cycle of an AC voltage input, turn on the first switch, turn off the second switch, and apply pulse-width modulation (PWM) control signals to the third and fourth switches. The control circuit is also configured to, during a zero crossing of the AC voltage input, supply a PWM control signal to the fourth switch to reduce a rate of voltage change across the second switch at the zero crossing to reduce common mode noise of the power converter.

Подробнее
Номер записи: 87
07-02-2019 дата публикации

UPS SYSTEMS AND METHODS USING VARIABLE CONFIGURATION MODULES

Номер: US20190044375A1
Автор: Navarro George Arthur
Принадлежит:

A UPS includes a first bridge circuit module, a second bridge circuit module, and a control circuit configured to operate the first bridge circuit module as an inverter and to selectively operate the second bridge circuit module as a bypass switch and a rectifier. The control circuit may be configured to operate the second bridge circuit module as bypass switch in a standby UPS mode and to operate the second bridge circuit module as a rectifier in an on-line UPS mode. 1. An uninterruptible power supply (UPS) comprising:an input;an output;a converter circuit coupled to the output;a bridge circuit coupled between the input and the output; anda control circuit configured to operate the bridge circuit as a bypass.2. The UPS of :wherein the input comprises an AC input;wherein the output comprises an AC output; andwherein the converter circuit comprises an inverter.3. The UPS of claim 2 , further comprising at least one inductor coupled between the AC input and the bridge circuit.4. The UPS of claim 3 , wherein the bridge circuit comprises a half-bridge circuit.5. The UPS of claim 3 , wherein the bridge circuit comprises first and second switches having first terminals coupled in common to the at least one inductor and second terminals coupled in common to the AC output.6. The UPS of claim 3 , wherein the at least one inductor comprises first and second inductors coupled in parallel.7. The UPS of claim 1 , wherein the bridge circuit comprises a half-bridge circuit.8. The UPS of claim 1 , wherein the bridge circuit comprises first and second switches having first terminals coupled in common to the input and second terminals coupled in common to the output.9. An apparatus comprising:at least one inductor having at least one terminal coupled to an AC source; anda bridge circuit coupled to at least one second terminal of the at least one inductor and to an AC load.10. The apparatus of claim 9 , wherein the bridge circuit comprises a half-bridge circuit.11. The apparatus of ...

Подробнее
Номер записи: 88
16-02-2017 дата публикации

Performance monitoring of pump-valve system

Номер: US20170045897A1
Автор: Jouni Pyotsia, Mats Friman
Принадлежит: METSO FLOW CONTROL OY

A pumping energy savings estimator is provided which, based on valve opening data collected for a control valve of a pump-valve system operating in an industrial process, determines an actual maximum (Δp org , ˜50% open) of valve operating region of the control valve of the pump-valve system. User can select a new maximum (Δp new , ˜70% open) of valve operating region for the control valve. Then the estimator, based on the determined actual maximum of valve operating region and the selected new maximum of valve operating region, energy saving potential (Δp save ) in the pump-valve system. The potential energy savings may be put into practice by replacing the original pump with a new smaller pump, or more preferably, replacing or processing the impeller of the original pump, such that the control valve will operate with the selected new optimal maximum opening of valve operating region.

Подробнее
Номер записи: 89
08-05-2014 дата публикации

Heat-electricity combined production system that utilizes solar energy and geothermal heat

Номер: US20140123644A1
Автор: Eun-Chul Kang, Euy-Joon Lee
Принадлежит: Korea Institute of Energy Research KIER

A heat-electricity combined production system includes: a solar cell module in which a flow path through which a heat source side heating medium heated by solar heat flows, is formed and which generates electricity by solar light; a geothermal heat exchanger that absorbs geothermal heat through the heat source side heating medium; a heat pump including a heat source side heat exchanger that performs heat-exchange between the heat source side heating medium and a refrigerant and a load side heat exchanger that performs heat-exchange between the refrigerant and a load side heating medium; a controller that control the heat source side heating medium to pass through both the solar cell module and the geothermal heat exchanger; and a plurality of pipes that connect the solar cell module, the geothermal heat exchanger and the heat pump.

Подробнее
Номер записи: 90
08-05-2014 дата публикации

High outlet density power distribution

Номер: US20140126116A1
Автор: Travis IRONS
Принадлежит: Server Technology Inc

Systems and apparatuses are provided in which outlets are coupled to a power distribution unit (PDU) or PDU module in various configurations. The outlets may be coupled to a recessed surface within a PDU housing. The outlets may be coupled to a printed circuit board that is at least partially disposed within the PDU housing. The outlets may extend away from the recessed surface or printed circuit board towards or beyond a front face of the PDU housing.

Подробнее
Номер записи: 91
15-02-2018 дата публикации

Islanding a plurality of grid tied power converters

Номер: US20180048158A1
Автор: Apurva SOMANI, John C. PALOMBINI
Принадлежит: Dynapower Co LLC

A power system having a plurality of power converters coupled together at a point of common coupling (PCC). The power converters are coupled to a load and provide a combined power converter output to the load. A switch is coupled in series between the PCC and an external grid. When the switch is closed, the power system is in a grid-tied configuration and when the switch is open, the power system is in a microgrid configuration. A control system coupled to the power converters enables the switch to open and close in response to a signal received from one or more sensors monitoring the external grid, enables the power converters to operate in a current control mode when the switch is closed, and transitions the power converters from grid-tied mode to microgrid mode and synchronize the power converters such that the converters share the load.

Подробнее
Номер записи: 92
15-02-2018 дата публикации

Method and system for bridgeless ac-dc converter

Номер: US20180048225A1
Автор: Alberto Doronzo
Принадлежит: Nexgen Power Systems Inc

An AC-DC converter configured to convert an input AC signal to an output DC signal is disclosed. The AC-DC converter includes an inductor and first and second transistors, where the inductor and first and second transistors are connected in series with one another. The input AC signal is applied across the series connected inductor and first and second transistors, and the series connected inductor and first and second transistors is configured to generate a secondary AC signal based on the AC input signal. The AC-DC converter also includes a rectifier, configured to rectify a signal based on the secondary AC signal to generate a substantially DC output signal based on the AC input signal.

Подробнее
Номер записи: 93
03-03-2022 дата публикации

Integrated power production and storage systems

Номер: US20220065162A1
Автор: Brian Allen, David Hunt, David MCDEED, Jeantfils Saint-Cyr, Mark Peak, Peter Luessen
Принадлежит: Mitsubishi Power Americas Inc

A power plant is configured to output power to a grid power system and comprises a hydrogen generation system configured to produce hydrogen, a gas turbine combined cycle power plant comprising a gas turbine engine configured to combust hydrogen from the hydrogen generation system to generate a gas stream that can be used to rotate a turbine shaft and a heat recovery steam generator (HRSG) configured to generate steam with the gas stream of the gas turbine engine to rotate a steam turbine, a storage system configured to store hydrogen produced by the hydrogen generation system, and a controller configured to operate the hydrogen generation system with electricity from the grid power system when the grid power system has excess energy and balance active and reactive loads on the grid power system using at least one of the hydrogen generation system and the gas turbine combined cycle power plant.

Подробнее
Номер записи: 94
13-02-2020 дата публикации

Optimized Mine Ventilation System

Номер: US20200049007A1
Автор: Masse Michel
Принадлежит:

The optimized mine ventilation system of this invention supplements mine ventilation basic control systems by establishing a dynamic ventilation demand as a function of real-time tracking of machinery and/or personnel location and where this demand is optimally distributed in the work zones via the mine ventilation network and where the energy required to ventilate is minimized while totally satisfying the demand for each work zones. The optimized mine ventilation system operates on the basis of a predictive dynamic simulation model of the mine ventilation network along with emulated control equipment such as fans and air flow regulators. The model always reaches an air mass flow balance where the pressure and density is preferably compensated for depth and accounts for the natural ventilation pressure flows due to temperature differences. Model setpoints are checked for safety bounds and sent to real physical control equipment via the basic control system. 1. A method of optimizing mine ventilation in an underground mine , said underground mine having airflow control equipment and a plurality of defined mine areas , said airflow control equipment comprising a plurality of surface fans , a plurality of booster fans , and a plurality of airflow regulators , the method comprising:monitoring, in real-time, the defined mine areas to detect machinery and personnel present inside said defined mine areas;determining, in real-time, a quantity of ventilation required for the defined mine areas as a function of the machinery and the personnel present in the defined mine areas; andautomatically adjusted, based on the determining, at least one of a speed of said plurality of surface fans, a speed of one or more of the booster fans, and an opening position of said airflow regulators to provide the determined quantity of ventilation to the defined mine areas in real-time.2. The method of claim 1 , wherein the determining a quantity of ventilation further comprises calculating the ...

Подробнее
Номер записи: 95
03-03-2022 дата публикации

Supplemental techniques for characterizing power quality events in an electrical system

Номер: US20220069578A1
Автор: Jon A. Bickel, Theresa K. Wall
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.

Подробнее
Номер записи: 96
14-02-2019 дата публикации

Exergy token

Номер: US20190050949A1
Автор: Lawrence Orsini
Принадлежит: LO3 Energy Inc

A method for the management of energy data includes methods, systems and computer program products. One of the methods includes receiving, by a self-executing contract, settlement information from at least two nodes in a network, the network comprising a plurality of nodes, each node in the plurality of nodes may maintain at least a predetermined number of tokens, each token representing a value. The method includes validating a current state of a public ledger. The method includes generating fulfillment information based on the received settlement information. The method also includes contributing to an updated state of the public ledger using the fulfillment information; wherein each token is associated with a payload describing the production, consumption, management, storage or transmission of electricity.

Подробнее
Номер записи: 97
23-02-2017 дата публикации

Device for reducing the electric power consumed by at least one power electric load, associated system and method

Номер: US20170054299A1
Автор: Jerome Gilbert
Принадлежит: ERGYLINK

A method relating to a device ( 1 ) for driving at least one power electric load ( 2 ) with the aim of reducing the electric power liable to be consumed or which is actually consumed in a terminal installation ( 4 ) of an electrical network including an electrical energy meter behind which the device is connected. A system ( 12 ) including such a device and at least one power electric load ( 2 ) is also described. Also described is a method for exploiting a plurality of systems ( 12 ) within an electrical network as well as the applications of this method for the management of an electrical network including intermittent-production energy sources, within the framework of a service for managing reduction in electrical energy consumption and/or to supplement a service for providing sanitary hot water, and/or heating, and/or cooling, and/or for providing electricity.

Подробнее
Номер записи: 98
03-03-2016 дата публикации

Drive train and wind power plant with a drive train

Номер: US20160061190A1
Автор: Matthias DEICKE
Принадлежит: SIEMENS AG

A drive train includes a gearbox having a gearbox housing, and a generator having a generator housing. A lubricating oil system including an oil reservoir lubricates toothed contact areas and/or bearings which are arranged within the gearbox housing. The oil reservoir is arranged within the generator housing or on an exterior side of the generator housing.

Подробнее
Номер записи: 99
01-03-2018 дата публикации

SYSTEMS AND METHODS FOR VIRTUALLY TAGGING AND SECURING INDUSTRIAL EQUIPMENT

Номер: US20180059653A1
Автор: Ericsson Matthew R., Jauquet John J., Korpela Jessica L., Michalscheck Jimi R., Michalscheck Kelly A., Reissner Kyle K., Vasko David A., Wilber Andrew
Принадлежит:

In one embodiment, a non-transitory computer readable medium may include computer-executable instructions that, when executed by a processor, may receive a first set of data associated with a user, receive a second set of data associated with one or more lockout procedures performed by the user, receive a request to actuate a locking mechanism of an electronic lock configured to prevent a machine in an industrial automation application from being operational, and send a signal to the electronic lock to actuate the locking mechanism when the second set of data indicates that the lockout procedures have been performed by the user and the data corresponds to an authorized user. 1. A non-transitory computer readable medium comprising computer-executable instructions that , when executed by a processor , are configured to cause the processor to:receive a set of user data associated with a user that accesses an electronic lock;receive a request to actuate a locking mechanism of the electronic lock configured to prevent a machine in an industrial automation system from being operational;actuate the locking mechanism in response to the request and the set of user data corresponding to an expected set of data;store a log of the request and the set of user data; andsend the log to a cloud-based computing system.2. The computer readable medium of claim 1 , wherein the locking mechanism is actuated in response to correspondence between the set of user data and the expected set of data indicating that the user is an authorized user.3. The computer readable medium of claim 1 , wherein the log comprises location information associated the electronic lock claim 1 , a time at which the locking mechanism is actuated claim 1 , or both.4. The computer readable medium of claim 3 , wherein the processor is configured to determine the location information based on a beacon coupled to the electronic lock.5. The computer readable medium of claim 1 , wherein the set of user data comprises an ...

Подробнее
Номер записи: 100