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Применить Всего найдено 37408. Отображено 100.
05-01-2012 дата публикации

Method and system for controlling power to an electrically powered device

Номер: US20120001488A1
Автор: Greg Puschnigg, Michael Krummey
Принадлежит: GREEN POWER Tech LLC

A system and method for remotely controlling power to an electrically powered device in a simple and efficient manner is disclosed herein. The system preferably comprises an apparatus, an electrically-powered device and a controller. The apparatus preferably comprises a cord, an alternating current outlet socket, an alternating current input plug, a latching relay, a processor and a transceiver. The system preferably uses a WiFi communication signal to transmit commands from the remote controller to the apparatus.

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Номер записи: 1
09-11-2017 дата публикации

Энергосберегающее устройство для 3-фазной сети

Номер: RU0000174881U1
Автор: Василий Васильевич Сергеев, Дмитрий Викторович Самохин, Евгений Евгеньевич Бабкин, Иван Михайлович Петров
Принадлежит: Василий Васильевич Сергеев, Иван Михайлович Петров

Полезная модель относится к электротехнике, а именно к и устройствам, обеспечивающим энергосбережение за счет повышения качества электроэнергии в 3-фазных сетях предприятия в условиях переменных нагрузок. Технический результат заключается в повышении качества электроэнергии за счет повышения точности компенсации реактивной мощности, уменьшения уровня гармоник, уменьшения несимметрии напряжений и токов, повышения надежности функционирования и быстродействия устройства. Для этого заявленное устройство содержит для каждой из фаз ограничитель напряжения 1, разрядник 2, реактивные элементы 11…11, состоящие из итеративных трансформаторов и косинусных конденсаторов, фильтр гармоник 5, n коммутаторов 6…6, блок автоматического регулирования 7, первый, второй и третий блоки датчиков 8, 9, 10. При изменении нагрузки в сети по сигналам с первого, второго и третьего блока датчиков 8, 9, 10, блоком управления 7 формируются команды на подключение соответствующих из реактивных элементов 11…11. Подключение каждого из косинусных конденсаторов через индивидуальный итеративный трансформатор и выполнение их в едином легкосъемном конструктиве позволяет обеспечить оптимальную настройку образуемого ими каждого из реактивных элементов 11…11, прежде всего, путем выбора параметров, соответствующих из итеративных трансформаторов. При этом обеспечивается, во всем диапазоне изменения нагрузок в каждой из фаз сети, в том числе из-за свойств итеративных трансформаторов, защита косинусных конденсаторов, компенсация реактивной мощности, уменьшение несимметрии напряжений и токов, компенсация бросков тока и кратковременных падений напряжения в сети, уменьшение уровня гармоник. 174881 Ц 1 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) св а зав а (13) (51) МПК ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ НО27 3/18 (2006.01) (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2016130040, 22.07.2016 (24) Дата начала отсчета срока действия патента: 22.07.2016 Дата регистрации: 09.11.2017 Приоритет(ы): (22) ...

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Номер записи: 2
20-06-2018 дата публикации

Система управления статическим тиристорным компенсатором

Номер: RU0000180656U1
Автор: Александр Аркадьевич Николаев, Василий Васильевич Анохин, Владимир Сергеевич Ивекеев
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "Магнитогорский государственный технический университет им. Г.И. Носова"

Полезная модель относится к области электротехники, а именно к устройствам регулирования реактивной мощности резкопеременных нагрузок промышленных предприятий, например, дуговых сталеплавильных печей (ДСП) с помощью статических тиристорных компенсаторов (СТК), и может быть использована для компенсации провалов напряжения, возникающих в питающей сети. Задача – повышение надёжности внутрицехового электроснабжения металлургических предприятий в результате быстрого реагирования системы управления СТК на несимметричный режим питающей сети и улучшения качества демпфирования провалов напряжения с учётом генерирующей способности СТК и сохранением его устойчивой работы. Задача решается тем, что система управления статическим тиристорным компенсатором снабжена блоком диагностики несимметричных режимов работы питающей сети 17, вход которого соединен с выходом измерительного трансформатора напряжения 18 со схемой соединения вторичной обмотки «разомкнутый треугольник», подключенного к шинам распределительного устройства высокого напряжения 19, а выход блока диагностики несимметричных режимов работы питающей сети 17 соединен с третьим входом блока переключения 14, при этом в качестве трехфазного пропорционально-интегрального регулятора напряжения, установленного в контуре регулирования напряжения 2, использован трехфазный пропорционально-интегрально-дифференцирующий регулятор напряжения 15. 4 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 180 656 U1 (51) МПК H02J 3/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H02J 3/18 (2006.01); H02J 3/12 (2006.01) (21)(22) Заявка: 2017140682, 23.11.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 23.11.2017 (45) Опубликовано: 20.06.2018 Бюл. № 17 1 8 0 6 5 6 R U (56) Список документов, цитированных в отчете о поиске: Николаев А.А. и др., Использование статического тиристорного компенсатора сверхмощной дуговой ...

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Номер записи: 3
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 ...

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Номер записи: 4
24-04-2019 дата публикации

Устройство трехступенчатой фильтрокомпенсирующей установки тяговой сети переменного тока

Номер: RU0000188806U1
Автор: Леонид Абрамович Герман
Принадлежит: Леонид Абрамович Герман

Полезная модель относится к устройствам электроснабжения железнодорожного транспорта, и в частности к регулируемым фильтрокомпенсирующим установкам тяговых сетей переменного тока, расположенным, например, на посту секционирования.Цель полезной модели - эффективное снижение потерь электроэнергии в тяговой сети и повышение пропускной способности при больших тяговых нагрузках.Для этого дополнительно введены параллельно включенные конденсаторы в первую секцию конденсаторной батареи, секция конденсаторной батареи и фильтровые реакторы, формирующие трехступенчатую фильтрокомпенсирующую установку (ФКУ), а также выключатель для коммутации третьей ступени мощности ФКУ. В результате наличие трех ступеней мощности ФКУ позволяет эффективнее снижать потери мощности в тяговой сети и повысить пропускную способность участков железной дороги при больших тяговых нагрузках. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 188 806 U1 (51) МПК H02H 7/16 (2006.01) H02J 3/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H02H 7/16 (2018.08); H02J 3/18 (2018.08) (21) (22) Заявка: 2018123091, 25.06.2018 (24) Дата начала отсчета срока действия патента: 25.06.2018 (72) Автор(ы): Герман Леонид Абрамович (RU) Дата регистрации: 24.04.2019 (56) Список документов, цитированных в отчете о поиске: RU 2475912 C2, 20.02.2013. RU 102842 U1, 10.03.2011. RU 178667 U1, 17.04.2018. US 5977660 A, 02.11.1999. (45) Опубликовано: 24.04.2019 Бюл. № 12 1 8 8 8 0 6 R U (54) Устройство трехступенчатой фильтрокомпенсирующей установки тяговой сети переменного тока (57) Реферат: Полезная модель относится к устройствам секцию конденсаторной батареи, секция электроснабжения железнодорожного конденсаторной батареи и фильтровые реакторы, транспорта, и в частности к регулируемым формирующие трехступенчатую фильтрокомпенсирующим установкам тяговых фильтрокомпенсирующую установку (ФКУ), а сетей переменного тока, расположенным, также выключатель для коммутации третьей ...

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Номер записи: 5
18-11-2019 дата публикации

Устройство измерения напряжения регулируемой установки компенсации реактивной мощности на посту секционирования

Номер: RU0000193828U1
Автор: Андрей Викторович Никонов, Василий Титович Черемисин, Владислав Леонидович Незевак
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "Омский государственный университет путей сообщения"

Полезная модель относится к измерительной технике в области железнодорожного транспорта и предназначена для измерения напряжения на шине поста секционирования при отсутствии тяговой нагрузки на межподстанционной зоне.Схема подключения устройства на посту секционирования на межподстанционной зоне двухпутного участка и структурная схема предлагаемого устройства приведены на фиг. 1 и фиг. 2 соответственно.Технический результат достигается за счет изменения уставки регулируемого компенсирующего устройства по напряжению в зависимости от измеренного значения напряжения при отсутствии тяговой нагрузки на межподстанционной зоне.Целью полезной модели является определение напряжения в точке подключения регулируемых установок поперечной компенсации реактивной мощности для выбора режима работы и повышения эффективности их работы. 2 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 193 828 U1 (51) МПК B60M 7/00 (2006.01) H02J 3/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК B60M 7/00 (2019.08); H02J 3/18 (2019.08) (21)(22) Заявка: 2019118945, 17.06.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 17.06.2019 (45) Опубликовано: 18.11.2019 Бюл. № 32 (54) УСТРОЙСТВО ИЗМЕРЕНИЯ НАПРЯЖЕНИЯ РЕГУЛИРУЕМОЙ УСТАНОВКИ КОМПЕНСАЦИИ РЕАКТИВНОЙ МОЩНОСТИ НА ПОСТУ СЕКЦИОНИРОВАНИЯ (57) Реферат: Полезная модель относится к измерительной изменения уставки регулируемого технике в области железнодорожного транспорта компенсирующего устройства по напряжению в и предназначена для измерения напряжения на зависимости от измеренного значения напряжения шине поста секционирования при отсутствии при отсутствии тяговой нагрузки на тяговой нагрузки на межподстанционной зоне. межподстанционной зоне. Схема подключения устройства на посту Целью полезной модели является определение секционирования на межподстанционной зоне напряжения в точке подключения регулируемых двухпутного участка и ...

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Номер записи: 6
28-01-2020 дата публикации

Многоуровневое устройство компенсации реактивной мощности и подавления высших гармоник тока

Номер: RU0000195453U1
Автор: Геннадий Петрович Корнилов, Ильдар Равильевич Абдулвелеев, Рифхат Рамазанович Храмшин, Тимур Рифхатович Храмшин
Принадлежит: Геннадий Петрович Корнилов, Ильдар Равильевич Абдулвелеев, Рифхат Рамазанович Храмшин, Тимур Рифхатович Храмшин

Полезная модель относится к электротехнике. Техническая проблема, на решение которой направлена полезная модель, заключается в повышении коэффициента полезного действия и надежности работы заявляемого устройства в высоковольтных системах электроснабжения мощных управляемых выпрямительных установок для нелинейных электроприемников с резкопеременным характером нагрузки, например, электродуговых печей постоянного тока. Техническая проблема решается тем, что устройство дополнительно снабжено: 9, 10, 11 - тремя однофазными компенсаторами реактивной мощности и подавления высших гармоник тока; основной 12 и дополнительной 13 группами многоуровневых модулей; 14, 15 - инверторами напряжения; 16 - задатчиком реактивного тока. Заявляемое устройство обеспечивает повышение коэффициента полезного действия и повышение надежности его работы в высоковольтных системах электроснабжения мощных управляемых выпрямительных установок. Отличительной особенностью заявляемого устройства является то, что в нем осуществлено функциональное разделение многоуровневых модулей в каждой фазе трехфазной системы напряжений на основную и дополнительную группы. Основная группа модулей выполняет функцию компенсатора реактивной мощности, а дополнительная группа модулей осуществляет подавление высших гармоник тока, т.е. выполняет функцию активного фильтра. Кроме того, особенностью заявляемого устройства является то, что десять модулей основной группы используют полностью управляемые тиристорные ключи, а два модуля дополнительной группы - транзисторные ключи. При этом относительно низкая частота коммутации (150 Гц) тиристорных ключей снижает их коммутационные потери, повышая коэффициент полезного действия и надежность работы заявляемого устройства. 5 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 195 453 U1 (51) МПК H02J 3/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H02J 3/1807 (2019.08); Y02E 40/26 (2019.08); Y02E 40/30 (2019.08); Y02E 40/40 ...

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Номер записи: 7
13-05-2020 дата публикации

Устройство контроля и управления мощностью электрической сети

Номер: RU0000197555U1
Автор: Валерий Павлович Бобров
Принадлежит: Валерий Павлович Бобров

Полезная модель относится к электротехнике, в частности к устройствам, обеспечивающим сбережение электроэнергии. Технический результат заключается в повышении эффективной работы устройства контроля и управления мощностью электрической сети. Достигается тем, что устройство контроля и управления мощностью электрической сети представляет собой корпус, внутри которого установлены и закреплены электронный компенсатор с дисплеем и автоматический выключатель. Электронный компенсатор представляет собой соединенный регулятор мощности, блок измерения тока, активный PFC, пассивный фильтр, блок управления процессами и передающий блок, которые выполнены с возможностью их последовательного соединения. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 197 555 U1 (51) МПК H02J 3/18 (2006.01) H02J 13/00 (2006.01) H02P 23/26 (2016.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H02J 3/18 (2019.08); H02J 13/00 (2019.08); H02P 23/26 (2019.08) (21)(22) Заявка: 2019124413, 01.08.2019 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Бобров Валерий Павлович (RU) Дата регистрации: 13.05.2020 Приоритет(ы): (22) Дата подачи заявки: 01.08.2019 (45) Опубликовано: 13.05.2020 Бюл. № 14 1 9 7 5 5 5 R U (54) УСТРОЙСТВО КОНТРОЛЯ И УПРАВЛЕНИЯ МОЩНОСТЬЮ ЭЛЕКТРИЧЕСКОЙ СЕТИ (57) Реферат: Полезная модель относится к электротехнике, закреплены электронный компенсатор с дисплеем в частности к устройствам, обеспечивающим и автоматический выключатель. Электронный сбережение электроэнергии. Технический компенсатор представляет собой соединенный результат заключается в повышении эффективной регулятор мощности, блок измерения тока, работы устройства контроля и управления активный PFC, пассивный фильтр, блок мощностью электрической сети. Достигается тем, управления процессами и передающий блок, что устройство контроля и управления которые выполнены с возможностью их мощностью электрической сети представляет последовательного соединения. ...

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Номер записи: 8
12-11-2020 дата публикации

Регулятор напряжения трансформатора

Номер: RU0000200820U1
Автор: Аркадий Анатольевич Степанов
Принадлежит: Аркадий Анатольевич Степанов, Хорьяков Владимир Владимирович

Полезная модель относится к области электротехники и может быть использована для регулировки напряжения силового трансформатора. Техническим результатом полезной модели является бесконтактная регулировка напряжения трансформатора. Регулятор напряжения трансформатора содержит трехфазный силовой трансформатор, трехфазный силовой автотрансформатор, конденсаторы, катушки индуктивности, нагрузку и ваттметры.В регуляторе напряжения трансформатора первичная обмотка трехфазного силового трансформатора соединена параллельно одному трехфазному конденсатору, трехфазному силовому автотрансформатору и через ваттметры с трехфазным источником переменного напряжения, фаза С первичной обмотки трехфазного силового трансформатора соединена через конденсатор с нулевым потенциалом, а фаза А трансформатора соединена с нулевым потенциалом через катушку индуктивности, вторичная обмотка силового трехфазного трансформатора соединена параллельно нагрузке и другому трехфазному конденсатору, а также трехфазной индуктивности. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 200 820 U1 (51) МПК H01F 29/02 (2006.01) H02P 13/06 (2006.01) H02J 3/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H01F 29/02 (2020.08); H02P 13/06 (2020.08); H02J 3/12 (2020.08) (21)(22) Заявка: 2020117120, 12.05.2020 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Степанов Аркадий Анатольевич (RU), Хорьяков Владимир Владимирович (RU) Дата регистрации: 12.11.2020 (45) Опубликовано: 12.11.2020 Бюл. № 32 2 0 0 8 2 0 R U (54) РЕГУЛЯТОР НАПРЯЖЕНИЯ ТРАНСФОРМАТОРА (57) Реферат: Полезная модель относится к области трехфазному конденсатору, трехфазному электротехники и может быть использована для силовому автотрансформатору и через ваттметры регулировки напряжения силового с трехфазным источником переменного трансформатора. Техническим результатом напряжения, фаза С первичной обмотки полезной модели является бесконтактная трехфазного силового ...

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Номер записи: 9
09-03-2021 дата публикации

Устройство компенсации провалов напряжения

Номер: RU0000202818U1
Автор: Игорь Витальевич Швыров, Леонид Александрович Князев, Сергей Викторович Гаврилов
Принадлежит: Публичное акционерное общество "Нефтяная компания "Роснефть" (ПАО "НК "Роснефть")

Настоящая полезная модель относится к области электротехники и может быть реализована в виде устройства, устанавливаемого на питающем вводе оборудования для компенсации провалов питающего напряжения.Устройство компенсации провалов напряжения включает вольтодобавочный трансформатор, одна из обмоток высокого напряжения которого подключена к управляемому инвертору, а другая обмотка низкого напряжения подключена в сеть между питающей сетью и потребителем.Активный выпрямитель напрямую подключен в цепь потребителя.Между управляемым инвертором и активным выпрямителем в звено постоянного тока подключен накопитель энергии, обеспечивающий компенсацию средних и глубоких провалов напряжения питающей сети.Система управления, на основании информации о значениях напряжения в точках подключения устройства компенсации провалов напряжения к питающей сети и к потребителю, посредством воздействия на контактор, управляемый инвертор и активный выпрямитель, осуществляет переключения между режимами.Устройство компенсации провалов напряжения обеспечивает возможность работы как минимум в трех режимах, а именно компенсация неглубоких провалов напряжения, компенсация провалов напряжения средней глубины и компенсация глубоких провалов напряжения. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 202 818 U1 (51) МПК H02J 3/12 (2006.01) G05F 1/30 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H02J 3/12 (2021.01); G05F 1/30 (2021.01) (21)(22) Заявка: 2020132984, 07.10.2020 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 07.10.2020 (45) Опубликовано: 09.03.2021 Бюл. № 7 2 0 2 8 1 8 R U (54) Устройство компенсации провалов напряжения (57) Реферат: Настоящая полезная модель относится к области электротехники и может быть реализована в виде устройства, устанавливаемого на питающем вводе оборудования для компенсации провалов питающего напряжения. Устройство компенсации провалов напряжения ...

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Номер записи: 10
12-01-2012 дата публикации

Voltage control at windfarms

Номер: US20120010756A1
Автор: Einar V. Larsen, Kara Clark, Reigh A. Walling
Принадлежит: General Electric Co

A voltage control arrangement for a system of multiple windfarms with transmission lines. Voltage is regulated at a point of regulation on the system, such as a high voltage substation or other system bus. Regulation is achieved at the point of regulation by sensing the voltage, comparing to a reference voltage, and adjusting the reactive power output of the wind turbines and other equipment in the system. The regulation point may be shifted to another point if needed to respect voltage limits at that points of the system after attempting to shift reactive load to restore voltage within limits at the other points in the system. The reference voltage may be adjusted to minimize losses for the system of multiple windfarms and transmission lines. A loss optimizing algorithm is applied to the combined multiple windfarm and transmission line to shift reactive load among local windfarms to minimize losses and to shift reactive load among individual wind turbines within an individual windfarm.

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Номер записи: 11
02-02-2012 дата публикации

Air conditioner and method for controlling the same

Номер: US20120023977A1
Автор: Jeonghyun LIM, Juyoung Min, Namwoo Kwon, Suyoung Kang, Younggeul Kim
Принадлежит: LG ELECTRONICS INC

An air conditioner which may controlled to adapt to changes in power rates, and an associated method, are provided. The method may include receiving electric power information, determining whether a current power rate included in the received information is higher than a preset reference value, and supplying electric power from a supplementary electric power source to at least one appliance in a network to which the air conditioner is connected if the current power rate is higher than the preset reference value.

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Номер записи: 12
02-02-2012 дата публикации

Centralized power conditioning

Номер: US20120029723A1
Автор: Narendra Reddy, Perry S. Schugart, William Vareka
Принадлежит: American Superconductor Corp

A power plant for providing electric power to a power grid includes energy sources; power conditioning units and a controller configured to cause power provided to the grid to have selected electrical characteristics. The controller is in high speed real-time communication with the power conditioning units and programmed to provide instructions to the power conditioning units.

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Номер записи: 13
16-02-2012 дата публикации

Electronic correction unit

Номер: US20120038221A1
Автор: Arni Bergmann Petursson, Jon Mar Halldorsson
Принадлежит: RAF EHF

The present invention relates to a device for power factor correction and electrical wide band filtering in electrical systems for reducing considerably voltages of frequencies higher than 110 Hz on power systems rated for 10 Hz to 60 Hz and to improve power factor by injecting reactive power into the system. The device of the present invention provides a combination of inductors and capacitors which effectively corrects the power factor and filters out voltages of high frequencies.

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Номер записи: 14
16-02-2012 дата публикации

Emergency frequency load shedding scheme

Номер: US20120041612A1
Автор: Nicholas C. Abi-Samra
Принадлежит: Electric Power Research Institute Inc

A load shedding system and method for controlling imbalances in a power system includes a signal generator adapted to generate a signal representative of a local system, and a modifying circuit adapted to adjust set frequencies. The system also includes a processing circuit adapted to process data received from the signal generator and modifying circuit and set load shedding priorities for the local system based on the processed data.

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Номер записи: 15
23-02-2012 дата публикации

Submodule for a multi-stage power converter having additional energy storage device

Номер: US20120043816A1
Автор: Marcos Pereira
Принадлежит: SIEMENS AG

A submodule for forming a multilevel power converter for electric energy distribution and transmission, includes a capacitor unit and a power semiconductor circuit having power semiconductors that can be switched off. The capacitor unit and the power semiconductor circuit are interconnected in such a way that, depending on the actuation of the power semiconductors of the power semiconductor circuit, at least the voltage released at the capacitor unit or a zero voltage can be generated at output terminals of the submodule. The submodule is not only able to compensate for reactive power, but to exchange active power with a connected alternating current network. An additional energy storage device is connected to the capacitor unit through a chopper unit for regulating current flow between the additional energy storage device and the capacitor unit.

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Номер записи: 16
01-03-2012 дата публикации

Smart plug with internal condition-based demand response capability

Номер: US20120049639A1
Автор: John K. Besore, Michael Thomas Bcycrle
Принадлежит: General Electric Co

A smart load switch or smart plug incorporates a built-in circuit that can monitor a physical variable condition and compare that sensed condition to data stored in a memory. A controller receives input data from the measuring device, compares the data to the reference data in memory, and selectively controls the on/off condition of a switch and thus the device that is plugged into the switch.

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Номер записи: 17
08-03-2012 дата публикации

Energy management device and method

Номер: US20120059530A1
Автор: Shang-Jue Ding, YI LUO
Принадлежит: Hon Hai Precision Industry Co Ltd, Hongfujin Precision Industry Shenzhen Co Ltd

An energy management device manages a plurality of monitored devices distributed in a plurality of monitored areas. The energy management device determines whether a current time of each monitored area is during a monitored time of the energy management device. The energy management device acquires an area identifier and a body presence information from each of the monitored areas, and determines whether one or more monitored areas are under control and without body presence. If one or more monitored areas are under control and without body presence, the energy management device transmits one or more power-off commands to turn off the monitored devices located in the one or more monitored areas.

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Номер записи: 18
22-03-2012 дата публикации

Power distribution

Номер: US20120072043A1
Автор: Klaus Arzig
Принадлежит: SIEMENS AG

A power distribution system has a field device level, a hierarchically higher station level, and an instrumentation and control level hierarchically higher than the station level. A function of field devices belonging to the field level, a function of station devices belonging to the station level, and a function of instrumentation and control devices belonging to the instrumentation and control level are defined by parameters. A plurality of separate computing devices are connected to each other by a communication network and form a distributed computer system. The field devices, the station devices, and the instrumentation and control devices are connected to the distributed computer system or are formed by individual or a plurality of computer devices. The parameters for determining the function of the devices are distributed over two different computer devices. The devices access the parameters via the communication network.

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Номер записи: 19
29-03-2012 дата публикации

Modular energy load management

Номер: US20120078431A1
Автор: Norman A. Weatherhead
Принадлежит: Rockwell Automation Technologies Inc

Systems and methods are provided that integrate a modular load management solution within a general control architecture. One or more load modules deployed within a controller act as interlocks to energy consuming field devices or machines fed by an energy distribution system within a facility. One or more feeder modules deployed within the controller collect energy supply data from an energy source or feeder on the energy distribution system. The load and feeder modules publish their energy demand and supply data to a virtual energy bus, which facilitates exchange of energy data between the load and feeder modules. The load modules, feeder modules, and virtual energy bus generate multiple views of the facility's overall energy supply and demand status based on the energy data shared between the components, and perform automated load management for the energy distribution system based on the collected data.

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Номер записи: 20
05-04-2012 дата публикации

Electronic device and method for managing current of the electronic device

Номер: US20120080946A1
Автор: Jian Peng
Принадлежит: Hon Hai Precision Industry Co Ltd, Hongfujin Precision Industry Shenzhen Co Ltd

A method for managing current of an electronic device initializes a control signal of a baseboard management controller (BMC) of the electronic device to be a low level before the electronic device is powered on, maintains the control signal under a low-level status for a specified time upon the condition that a power on signal of the electronic device is received, and rotates the electronic fan with a low current and a low speed. The method further sets the control signal to be a high level when the specified time elapses to rotate the electronic fan with a normal current and a normal speed, and sets the control signal to be the low level upon the condition that a power off signal of the electronic device is received.

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Номер записи: 21
05-04-2012 дата публикации

Arrangement For Protecting Equipment Of A Power System

Номер: US20120081817A1
Автор: Zoran Gajic
Принадлежит: Individual

An arrangement for protecting equipment of an AC electrical power system comprises first means configured to measure the frequency of the current and voltage at at least one location in the electrical power system along an interconnection between two theoretical electric machines of an equivalent two machine system. Fourth means are configured to use the values of the frequency of the current and voltage measured to determine whether a power swing has occurred and if an occurrence of a power swing has been determined determine whether the measuring location is located on a motor side or a generator side of a potential pole slip electrical centre along said interconnection, the electrical centre being defined as the location where the voltage becomes zero during a pole slip, and send this information further to third means for use in a control for protecting equipment of the electrical power system.

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Номер записи: 22
12-04-2012 дата публикации

System and method for controlling access to a source of electrical power

Номер: US20120086546A1
Автор: Nicolas Jones, Steven Montgomery
Принадлежит: 2D2C Inc

A system for controlling access to a source of electrical power. The system includes a readable access information device with access information that is associated with an electrical load device electrically connectable to a receptacle, a switch device for connecting and disconnecting the receptacle to and from the source of electrical power, and a reader for reading the access information from the readable access information device, and determining whether preselected criteria are satisfied by the access information. If the preselected criteria are satisfied, the receptacle is connected to the source of electrical power, and the electrical load device is connectable to the source of electrical power via the receptacle. If any one or more of the preselected criteria are unsatisfied, then the receptacle is disconnected from the source of electrical power.

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Номер записи: 23
19-04-2012 дата публикации

Smart nema outlets and associated networks

Номер: US20120095610A1
Автор: Steve Chapel, William Pachoud
Принадлежит: Zonit Structured Solutions LLC

A control system ( 300 ) allows standard NEMA receptacles to be remotely monitored and/or controlled, for example, to intelligently execute blackouts or brownouts or to otherwise remotely control electrical appliances. The system ( 300 ) includes a number of smart receptacles ( 302 ) that communicate with a local controller ( 304 ), e.g., via power lines using the TCP/IP protocol. The local controller ( 304 ), in turn, communicates with a remote controller ( 308 ) via the internet.

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Номер записи: 24
03-05-2012 дата публикации

Wind turbine with lvrt capabilities

Номер: US20120104754A1
Автор: Georg Rudolf, Karl-Friedrich Stapelfeldt
Принадлежит: DeWind Co

Systems and methods (“utility”) for providing Low Voltage Ride Through (LVRT) capabilities for wind turbines are disclosed. The utility includes a directly connected synchronous generator ( 214 ) that is designed to have a high dynamic pull-out torque. To remain connected to the power grid ( 224 ) during low voltage events, the utility boosts the excitation current applied to the rotor of the synchronous generator ( 214 ). Further, the utility may include a torque regulator in the form of d torque-regulating gearbox ( 210 ), which in turn includes adjustable guide vanes ( 624 ) that may be positioned to reduce the amount of mechanical torque applied to the rotor shaft of the synchronous generator ( 224 ) during low voltage events. Additionally, the utility may also include a braking system ( 206 ) and a pitch control system ( 234 ) to limit the acceleration of the wind rotor ( 202 ) shaft during low voltage events.

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Номер записи: 25
10-05-2012 дата публикации

Method And Arrangement To Control An AC System

Номер: US20120112559A1
Автор: Åke PETERSSON, Lars Liljestrand, Stefan Thorburn
Принадлежит: Individual

An arrangement to control an electrical property of a medium or high voltage AC system including a number n of phases with n being at least two includes a number n of phases, each phase including a series connection of at least two electrical elements with an intermediate connection point between each pair of the at least two electrical elements, where each of the n phases of the arrangement is connected on one side to an original common neutral point and on the other side to one of the n phases of the AC system. The arrangement further includes a number of first switchable interconnections, where the first switchable interconnections are each arranged between two intermediate connection points of two of the n phases of the arrangement, and at least one control unit arranged to control the first switchable interconnections.

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Номер записи: 26
10-05-2012 дата публикации

Power control system, power control method, power control device and power control program

Номер: US20120112696A1
Автор: Kazunori Kurimoto, Naofumi Nakatani, Satoshi Tsujimura, Tetsuya Kouda, Toshihisa Ikeda, Yasuo Yoshimura
Принадлежит: Panasonic Corp

Disclosed are a power control system, a power control method, a power control device and a power control program, which can efficiently supply power to an electric device and charge an electric vehicle. A power control device ( 16 ) has: a second communication unit ( 14 ) that receives charge information pertaining to charging of an on-board battery ( 23 ) from an electric car ( 2 ) prior to the arrival of the electric car ( 2 ) at a location where power is supplied to the electric car ( 2 ); and a control determination unit ( 11 ) that determines a power supply start time of supplying power to an electric water heater ( 1 ) and a charging start time of charging the on-board battery ( 23 ), on the basis of the charge information, such that the supply of power to the electric water heater ( 1 ) and the charging of the on-board battery ( 23 ) are completed by a predetermined time.

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Номер записи: 27
17-05-2012 дата публикации

Smart Power Sockets, Boards, and Plugs

Номер: US20120119577A1
Автор: Michael Paul Clarke
Принадлежит: International Business Machines Corp

An approach is provided where a smart socket receives a request over a power line and generates a request based on the received request. The second request is transmitted over a power cord connecting the smart power socket to a device. A response is received from the device and a power setting is identified therefrom. The smart socket regulates electrical current flowing from the smart power socket to the device using the identified setting. In a related approach, the device receives a power down request over a power cord from a smart power socket. The device determines whether power is still needed at the device in order to perform one or more device operations. The device then returns a response to the smart power socket, with the response indicating whether power is still needed at the device.

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Номер записи: 28
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.

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Номер записи: 29
31-05-2012 дата публикации

Systems and methods for global voltage security assessment in power systems

Номер: US20120136643A1
Автор: Vaithianathan Venkatasubramanian, Xing Liu
Принадлежит: Washington State University WSU

Systems and methods for global voltage security assessment in power systems are disclosed herein. In one embodiment, a method for assessing voltage security in a power system having a number (i) of buses includes capturing a change in bus voltage and a change in line reactive power for at least some of the buses in the power system, for each of the i number of buses, calculating a voltage assessment index) (Γ i ) for as follows: Γ i = ∑ j  Δ   Q ij Δ   V i where ΔV i is the change in bus voltage and ΔQ ij is the change in line reactive power from a connection j over a predetermined period of time. The method further includes assessing a current voltage security status of the power system based on the calculated voltage assessment index (Γ i ).

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Номер записи: 30
21-06-2012 дата публикации

Personal Energy Management System

Номер: US20120158203A1
Автор: George Feldstein
Принадлежит: Crestron Electronics Inc

Presented is a system for managing energy usage of a user. The system includes a database storing a preferred energy profile associated with the user and a minimum energy profile, an automation control system that controls at least one device associated with the user, a presence detecting apparatus for detecting when the user is present, and a system control computer. The system control computer instructs the automation control system to operate the one device according to the preferred energy profile associated with the user in response to the presence detecting apparatus detecting the presence of the user. The system control computer further instructs the automation control system to operate the one device according to the minimum energy profile in response to the presence detecting apparatus detecting the absence of the user.

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Номер записи: 31
28-06-2012 дата публикации

Energy management system in home network interworking with smart grid

Номер: US20120166004A1
Автор: Il Woo Lee, Jinsoo Han, Wan Ki PARK
Принадлежит: Electronics and Telecommunications Research Institute ETRI, KT Corp

An energy management system in a home network interworking with a smart grid includes: a power management apparatus for managing power consumption of a power consumption apparatus; a power storage apparatus for storing or supplying power to the power consumption apparatus; a power production apparatus for transmitting status information of its power production to the power management apparatus; a mobile power storage/supply apparatus for transmitting its power status to the power management apparatus; a smart meter for transmitting a real-time price and demand response information to the power management apparatus; and a wireless terminal for inputting a schedule of a home power consumer.

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Номер записи: 32
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.

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Номер записи: 33
05-07-2012 дата публикации

Method and system for reducing feeder circuit loss using demand response

Номер: US20120173030A1
Автор: Jeffrey D. Taft
Принадлежит: Accenture Global Services Ltd

A system and method that analyzes at least one aspect of the power grid for demand response in order to reduce feeder circuit losses is provided. The system and method may use a demand response model to select one or more factors for the demand response, such as selecting a subset of customers for demand response from a larger pool of available demand response customers. The demand response model may include a grid structure component, such as an indication of the particular customer's position in the grid, and a dynamic operation component, such as a real-time measurement of current in the feeder circuit. By using the demand response model, feeder circuit losses may thereby reduced.

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Номер записи: 34
09-08-2012 дата публикации

Battery charging station

Номер: US20120200256A1
Автор: David Yuan Jei Tse
Принадлежит: Atieva Inc

A method of operating an electric vehicle charging system utilizing a plurality of charging units and charging points is disclosed. The method includes determining a rate of charge to be delivered to each vehicle and then allocating a respective portion of the total charging capacity of the charging station to each vehicle.

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Номер записи: 35
16-08-2012 дата публикации

Electric device and power management apparatus for changing demand response (dr) control level

Номер: US20120209443A1
Автор: Do Gwan LEE, Jin Chul Shin
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An electric device for changing a DR control level and a power management apparatus for the same are disclosed. An electric device for changing a demand response (DR) control level includes a memory unit to store a plurality of DR control levels classified according to power rates, a communication unit to receive a current power rate and a current power rate level related to the current power rate from a power provider in real time, a user interface which, upon receiving a request for changing a DR control level from a user, displays a list of pre-stored DR control levels and receives a DR control level to be changed from the user, and a controller to compare the current power rate level with the changed DR control level, and determine whether to perform a power saving operation. As a result, the electric device can decide whether to increase the usage of the electric device or to consider the power saving aspect using current power status information transmitted in real time, thereby adaptively adjusting a start level of the DR control.

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Номер записи: 36
06-09-2012 дата публикации

Method and device for stabilizing network operation of a power supply network

Номер: US20120223577A1
Автор: Bernhard Beck
Принадлежит: ADENSIS GMBH

For network stabilization of an electric power supply network, the voltage at a first network connection point at a first voltage level to a power generator, and at a second network connection point to a second voltage level, as well as at at least one third network connection point to a load, are each sensed as a voltage measurement, wherein a reactive power draw or a reactive power delivery by the power generator is ascertained using a linkage of the voltage measurements with the geographic location of the relevant network connection point.

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Номер записи: 37
06-09-2012 дата публикации

Power control apparatus and power control method using same

Номер: US20120226572A1
Автор: Jong Soo Park, Seong Geun Heo, Sung Nam Ryoo
Принадлежит: LG ELECTRONICS INC

Disclosed is a power control method and a power control apparatus. The power control method comprises the steps of: a first charge comparison step for receiving charge information of supplied power, and comparing the charge of the supplied power with a preset reference charge; and a second charge comparison step for comparing the charge of the supplied power with the preset lowest charge. The method comprises the steps of: a first power quantity comparison step for confirming a stored power quantity within a power storage unit, and comparing the stored power quantity with a preset reference power quantity; and a second power quantity comparison step for comparing the stored power quantity with a preset power quantity demand. Further, the method comprises a control step for selecting one of externally supplied power and internally stored power as the usage power for the customer, through at least one of a charge comparison step and the power quantity comparison step.

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Номер записи: 38
20-09-2012 дата публикации

Method and system for distributed power management

Номер: US20120239216A1
Автор: Ganesh KULATHU, Martin NYKVIST, Otto Van Der Wal, Wolfgang Wimmer
Принадлежит: ABB TECHNOLOGY AG

A method and system for distributed power management with individual IEDs in a substation are disclosed. An exemplary technique can include providing multiple IEDs in a power network in the substation and integrating an intrinsic load shedding function in each IED. The technique can include identifying a power imbalance state at an individual IED and load shedding the individual IED using an intrinsic load shedding function when a power imbalance state is identified in a coordinated manner to achieve distributed power management in the substation.

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Номер записи: 39
20-09-2012 дата публикации

System, method, and apparatus for actively managing consumption of electric power supplied by one or more electric power grid operators

Номер: US20120239218A1
Автор: Joseph W. Forbes, Jr.
Принадлежит: Individual

A server manages consumption of power supplied by utility or electric power grid operator(s) to multiple power consuming devices. Power flow to the consuming devices is enabled and disabled by controllable devices controlled by one or more client devices. The server includes a command processor, event manager, database, and client device manager. The command processor receives commands from the operator(s) and issues event messages responsive thereto. The event manager maintains a power management status for each client device and issues event instructions responsive to event messages. The database stores information relating to power consumed by the consuming devices. The client device manager selects from the database, responsive to receipt of a power reduction event instruction, client device(s) to which to issue a message indicating a power reduction amount and/or identification of at least one controllable device to be instructed to disable power flow to associated consuming devices.

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Номер записи: 40
27-09-2012 дата публикации

DC Power Source For A High Voltage Power Apparatus

Номер: US20120242153A1
Автор: Georgios Demetriades, Konstantinos Papastergiou, Willy Hermansson
Принадлежит: Individual

A dc power source for a high voltage power apparatus, the dc power source including one or more strings including a plurality of dc power source units connected in series, and switches configured to connect and disconnect said strings. The switches are solid-state switches distributed among the power source units of each string, and all solid-state switches in the string are arranged so that they are turned on and off simultaneously. Each switch is connected in parallel with a first controllable semiconductor in a first direction and connected in parallel with a second controllable semiconductor in a second direction which is opposite to the first direction, and the dc power source includes a control unit configured to bypass a failed switch by triggering the forward biased of the first or second controllable semiconductor connected to the failed switch in case a fault in the switch is detected.

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Номер записи: 41
27-09-2012 дата публикации

Systems and methods for managing an energy distribution network

Номер: US20120245749A1
Автор: Nathan Bowman Littrell
Принадлежит: General Electric Co

A system includes a first computer including an energy distribution network model. The first computer identifies a plurality of energy consumers associated with an energy distribution constraint within the energy distribution network. The system also includes a second computer configured to receive data from the first computer. The second computer is also configured to identify a plurality of customers subscribed to a demand response program and identify a subset of the plurality of energy consumers that are associated with the plurality of customers. The second computer is further configured to identify a device associated with each energy consumer of the subset of energy consumers and cause a demand response request to be transmitted to at least one identified device.

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Номер записи: 42
27-09-2012 дата публикации

Electric vehicle charging scheduling system

Номер: US20120245750A1
Автор: Hideyuki Aisu, Topon Kumar Paul
Принадлежит: Toshiba Corp

A charging prediction database stores information on electric vehicles expected to arrive for charging. A profile/charging information database stores information on electric vehicles that have arrived and been waiting for charging. A power database stores information on a power source including at least one of a power grid and a stationary battery. An energy calculating unit calculates energy available from the power source based on the power database. A scheduling unit schedule charging of the electric vehicles waiting for charging in consideration of the electric vehicles expected to arrive.

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Номер записи: 43
04-10-2012 дата публикации

Control device of wind turbine generator, wind turbine generator, wind farm, and control method for wind turbine generator

Номер: US20120248772A1
Автор: Akira Yasugi, Tetsuo Shigemizu, Tsuyoshi Wakasa
Принадлежит: Mitsubishi Heavy Industries Ltd

An object is to rapidly recover from a voltage drop in a power grid. When the value of a grid voltage detected by a grid voltage detection unit has fluctuated so as to satisfy a condition set in advance for a reference value, a control device controls a wind turbine generator such that a reactive current corresponding to a required output current that is determined by an active current and the reactive current and that indicates an output level to a power grid on the basis of the detection result from the grid voltage detection unit is output to the power grid.

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Номер записи: 44
04-10-2012 дата публикации

System and method for operating a tap changer

Номер: US20120249278A1
Автор: Michael Joseph Krok, Sahika Genc
Принадлежит: General Electric Co

A method of operating a tap changer of a transformer or a voltage regulator in a power grid includes obtaining a load forecast for a time period. An average voltage profile is determined for the time period based on the load forecast. The method further includes estimating tap positions of the tap changer for leveling the average voltage profile during the time period. Switching signal commands are provided to the tap changer based on the estimated tap positions.

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Номер записи: 45
18-10-2012 дата публикации

Electric power consumption control system

Номер: US20120261989A1
Автор: Shunji Mishina
Принадлежит: Mitsubishi Heavy Industries Ltd

Disclosed is an electric power consumption control system for a factory where a plurality of machine tools are installed. A machine tool is provided with a control device whereby either the rotational acceleration/deceleration for the motor for the machine tool and/or the rotational speed thereof is controlled on the basis of information regarding electric power consumption in the factory so that electric power consumption will not exceed a specified value. This electric power consumption control system is also provided with electric power detection instruments and an electric power monitoring instrument which measure the electric power consumption of all the machine tools installed in the factory, thereby obtaining the electric power consumption of the factory, and provide information regarding the electric power consumption to the control device of the machine tool equipped with the control device.

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Номер записи: 46
18-10-2012 дата публикации

Solar generation method and system

Номер: US20120262960A1
Автор: Carlos Itoiz Beunza, Elizabeth Giraut Ruso, María A. Padrós Razquin
Принадлежит: Acciona Energia SA

The invention describes a solar generation method by means of a system ( 1 ) comprising a set of solar cells ( 2 ) connected to an inverter ( 4 ) that transmits the energy generated to an electrical network ( 6 ), which comprises controlling the active and reactive power that the system ( 1 ) transmits to the electrical network ( 6 ) by controlling the voltage (V cell ) of the cells ( 2 ) and the output current (I inv ) of the inverter ( 4 ), such that: in a first mode of operation, the voltage (V cell ) of the cells ( 2 ) provides the maximum active power in accordance with the operating conditions; and, in a second mode of operation, the voltage (V cell ) in the cells ( 2 ) is different from the voltage that provides the maximum active power, generating an active power that is lower than the maximum, in order to optimise the integration of the solar generation system ( 1 ) into the electrical network ( 6 ).

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Номер записи: 47
25-10-2012 дата публикации

Electrical distribution network improvement for plug-in electric vehicles

Номер: US20120271437A1
Автор: Aline Senart, Christian Souche, Scott W. Kurth
Принадлежит: Accenture Global Services Ltd

Electrical distribution network (EDN) improvement method for plug-in electric vehicles receives and stores in a database EDN configuration information, demography information and load information for simulating load of the EDN assets. The method dynamically updates the EDN configuration, demography information and/or load information to provide an efficient and customizable method of simulating a PEV load impact on an EDN configuration and apply improvements to the EDN in real time.

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Номер записи: 48
08-11-2012 дата публикации

Generator Frequency Controlled Load Shifting

Номер: US20120280499A1
Автор: Paul Swearingen, Scott J. Marks
Принадлежит: Hamilton Sundstrand Corp

In a power generation system that includes a ram air turbine that drives an electric generator and at least one electric bus that couples alternating current electric power from the electric generator to at least one electric load, a method of maintaining the speed of the ram air turbine within a desired range of speeds that comprises the step of uncoupling the at least one electric bus from the electric generator when the frequency of the alternating current falls under a desired minimum frequency.

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Номер записи: 49
15-11-2012 дата публикации

Method and apparatus for controlling electric grid in islanding mode

Номер: US20120287683A1
Автор: Mikko ROUTIMO
Принадлежит: ABB Oy

An exemplary method for controlling transfer of electrical power in island mode in an arrangement having a converter and a load connected to the converter through a filter. The method including determining voltage reference components for one or more frequency components of an output voltage of the converter. An effect of a load current is compensated for by forming one or more voltage feedforward terms based on the load current and using the feedforward terms to adjust the voltage reference components. Control reference components for one or more of the frequency components are formed based on the voltage reference components, and a control reference is formed based on the control reference components. The output voltage of the converter is controlled based on the control reference.

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Номер записи: 50
29-11-2012 дата публикации

Method and device for determining a control scheme for an active power filter

Номер: US20120300514A1
Автор: Johann W. Kolar, Jörgen Linner, Per Ranstad, Thiago Soeiro
Принадлежит: Alstom Technology AG

A method is provided for determining a control scheme for a neutral point clamped (NPC) voltage source converter (VSC) with at least 3 levels and a topology of three bridge legs between each of three phases of a grid and a neutral point. Each leg includes at least four active switches, and a clamping carrier modulator synchronized with the grid is provided for the control of no-switching intervals. The method includes: analyzing the waveform of the grid and/or a load voltage and determining windows defining an allowed period for no-switching of the corresponding bridge leg; operating or simulating the operation of the voltage source converter with different clamping carrier modulator frequencies, and then analyzing the balance in the operating junction temperatures and/or power losses across the active switches and also analyzing the total losses of the voltage source converter; comparing the balance and the total losses of different clamping carrier modulator frequencies and selecting either the clamping carrier modulator frequency according to showing, as primary criterion, the better balance and, as secondary criterion, the lower total losses; operating or simulating the operation of the voltage source converter with the selected clamping carrier modulator frequency, while iteratively changing at least one of the following operating parameters of the voltage source converter: switching frequency, DC-link voltage reference, duty cycle of clamping carrier modulator, phase shift of the clamping carrier modulator relative to the grid, and optimizing the balance in the operating junction temperatures and/or power losses across the active switches and the total losses of the voltage source converter as a function of the adjustment of these operating parameters until reaching optimum operation parameters for the control scheme.

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Номер записи: 51
06-12-2012 дата публикации

Sensor having an integrated Zigbee® device for communication with Zigbee® enabled appliances to control and monitor Zigbee® enabled appliances

Номер: US20120307646A1
Автор: Dan Castellano, Eric GRUBEL, MingYao Xia
Принадлежит: Asoka USA Corp

A sensor device integrates ZigBee® technology into power switch device to provide monitoring and control of power usage, as well as operational control of connected devices. The sensor device uses a power line communication (PLC) network to transfer collected data and to provide remote control capability to connected appliances. The sensor device, in conjunction with a master switch device, a communication enabled switching device, and the power switch device, provides an integrated home environment for communication, streaming media, monitoring, and remote control of power usage, as well as remote operational monitoring and control of connected appliances in the home.

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Номер записи: 52
13-12-2012 дата публикации

Apparatus for Capturing Electric Distribution System Harmonics for Powering Loads

Номер: US20120313728A1
Автор: John Louis CAIRO, Jr.
Принадлежит: C&J TECHNOLOGIES LLC

An apparatus for capturing power supply harmonics for use in powering a load, comprising a series resonant circuit coupled between an energy source having a waveform comprising a sinusoidal fundamental frequency and a sinusoidal harmonic, and a load that is not the earth, wherein the series resonant circuit is tuned to the harmonic frequency whereby the energy of the harmonic is directed to the load.

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Номер записи: 53
20-12-2012 дата публикации

System and method of operating household appliances

Номер: US20120323392A1
Автор: Bruce Simmons, Michael Gerdes, Paul WINTRODE
Принадлежит: BSH Home Appliances Corp

A household appliance configured to communicate with a second household appliance, a network of household appliances that can communication with each other, and method of controlling an operation of a primary function unit of a first household appliance based on one of a priority scheme and synchronized duty cycles of the first household appliance and the second household appliance, wherein the first household appliance is configured to communicate with the second household appliance. The household appliance includes a primary function unit, a controller that controls an operation of the primary function unit, a two-way communication module that transmits and receives signals between the controller and the second household appliance.

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Номер записи: 54
10-01-2013 дата публикации

Photovoltaic arrangement

Номер: US20130009478A1
Автор: Bernhard Beck
Принадлежит: ADENSIS GMBH

An arrangement with a photovoltaic generator is provided that can be connected to the input of a power inverter, the output of which is connected to a supply network. The arrangement further comprises an asynchronous machine parallel to the output of the power inverter, which asynchronous machine is driven by an internal combustion engine.

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Номер записи: 55
17-01-2013 дата публикации

Energy saving switch device, and method thereof

Номер: US20130015721A1
Автор: Chin-Sheng Lee, Yi-Ming Pai, Yu-Tsung Hsu
Принадлежит: Hannstar Display Corp

An energy saving switch device for an electronic apparatus, including: a power control unit, determining whether to provide an external power to the electronic apparatus according to an external control signal; a switch unit, coupled to the power control unit and the external power, and when receiving a power off signal, electrically disconnecting the external power from the electronic apparatus; and a detection unit, detecting whether a user is inside a predetermined range when the power control unit is not providing the external power to the electronic apparatus, and generating the power off signal when the user is not inside the predetermined range.

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Номер записи: 56
24-01-2013 дата публикации

Apparatus for decentralized coordinated volt/var control (cvvc)

Номер: US20130024032A1
Автор: Aleksandar Vukojevic, Borka Milosevic
Принадлежит: Individual

A system for enhancing decentralized coordinated Volt/Var control (CVVC) includes a memory device configured to store a plurality of operational measurements of an electric distribution system. The electric distribution system includes a plurality of capacitive devices. The system also includes a processor coupled in communication with the memory device. The processor is programmed to determine a plurality of potential configurations for the plurality of capacitive devices. The processor is also programmed to determine a priority of switching of each of the plurality of capacitive devices as a function of at least one of at least one actual voltage measurement of the electric distribution system, at least one power factor determination of the electric distribution system, at least one voltage parameter, at least one power factor parameter, and an availability of each of the capacitive devices.

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Номер записи: 57
31-01-2013 дата публикации

Devices and methods for decentralized volt/var control

Номер: US20130030598A1
Автор: Aleksandar Vukojevic, Borka Milosevic, Willem Hendrik Du Toit
Принадлежит: General Electric Co

Devices and methods for the decentralized, coordinated control of the voltage and active power losses of an electrical distribution system in light of one another are provided. For example, a controller may include a network interface and data processing circuitry. The network interface may receive first measurements associated with a segment of an electrical distribution system and transmit a control signal configured to control equipment of the segment of the electrical distribution system. The data processing circuitry may run simulations of the segment of the electrical distribution system in various equipment configurations, selecting from among the various configurations one that is expected to cause the voltage deviation and the active power losses of the segment to approach desired values while keeping power factor within a desired range. The data processing circuitry then may generate the control signal, which may cause the equipment of the segment of the electrical distribution system to conform to the equipment configuration.

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Номер записи: 58
14-02-2013 дата публикации

Wind farm and method for operating a wind farm

Номер: US20130038133A1
Автор: John Bech
Принадлежит: SIEMENS AG

A wind farm is described which includes a collector grid and a wind turbine being connected to the collector grid. The wind turbine includes a wind turbine transformer, and a wind turbine transformer bypass switch. Further disclosed is a method for operating a wind farm. The method includes measuring a collector grid voltage, and bypassing a wind turbine transformer if the measured collector grid voltage is below a first predetermined threshold voltage.

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Номер записи: 59
28-02-2013 дата публикации

Apparatus and method for transmitting operating cycle alerts

Номер: US20130049970A1
Автор: David McCalpin, Michael Finch, Natarajan Venkatakrishnan, Peter Pepe
Принадлежит: General Electric Co

An apparatus includes a memory device configured to store computer-readable instructions and data representative of at least an alert trigger time that represents a time before an end of an operating cycle of an appliance communicatively coupled to a home energy manager. The apparatus further includes a processor coupled to the memory device and configured to execute the computer-readable instructions, which when executed by the processor, cause the processor to determine a remaining cycle time for the operating cycle of the appliance, compare the remaining cycle time to the alert trigger time stored in the memory device, generate an alert when the remaining cycle time is equal to the alert trigger time, and transmit the generated alert to at least one remote device.

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Номер записи: 60
28-02-2013 дата публикации

Load Leveling System of Power System

Номер: US20130054040A1
Автор: Eri Isozaki, Hirotaka Takahashi, Katsuhiro Matsuda, Kazuhiro Horikoshi, Takashi Oda, Tsukasa Onishi, Yasushi Tomita
Принадлежит: HITACHI LTD, Tohoku Electric Power Co Inc

It is an object of the present invention to provide a load leveling system of a power system capable of attaining load leveling in a distribution substation unit and a method thereof. Disclosed is a load leveling system of a power system with a controller having a major customer and lower transforming apparatus, and with a customer connected to the lower transforming apparatus via a low-voltage line. The system also has a communication unit between the customer and its own system, and control use time zones of devices within the customer; an electric demand prediction unit, and a first load leveling processing unit. By employing such an arranged system, it becomes possible to provide a load leveling system of a power system capable of realizing load leveling of both a distribution substation unit and a pole transformer unit.

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Номер записи: 61
28-03-2013 дата публикации

Method and system for operating a power generation and delivery system

Номер: US20130079945A1
Автор: Alfredo Sebastian Achilles, Einar Vaughn Larsen
Принадлежит: Individual

A method for controlling operation of a power generation and delivery system while increasing a power output of the power generation and delivery system is described. The method includes, monitoring an output parameter of the power generation and delivery system and determining a rate of change of the output parameter as a function of time. A reactive current command signal is generated a as a function of the determined rate of change of the output parameter. Operation of a power converter is controlled based at least partially on the reactive current command signal to facilitate maintaining a substantially constant terminal voltage as the power output of the power generation and delivery system is increased.

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Номер записи: 62
11-04-2013 дата публикации

Apparatus and method for preventing command conflicts in a smart grid network

Номер: US20130090773A1
Автор: Ho-yeon Park, Se-Hee Han
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method for managing in an Energy Management System (EMS) includes receiving, from a mobile terminal, a user command for at least one target smart appliance controlled by the EMS, determining, upon receiving the user command, determining whether the at least one target smart appliance includes at least one power-controlled smart appliance, wherein each power-controlled smart appliance operates in a power control mode, generating, upon a determination that there is at least one power-controlled target smart appliance, a notice message for informing the mobile terminal that the at least one power-controlled target smart appliance operates in the power control mode, and sending the notice message to the mobile terminal, and determining, upon receiving a response message to the sent notice message, whether to continue the power control mode of the at least one power-controlled smart appliance according to selection information included in the response message.

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Номер записи: 63
18-04-2013 дата публикации

Static var compensator with multilevel converter

Номер: US20130094264A1
Автор: David Reginald Trainer, Donald Collin Murray Oates, William Crookes
Принадлежит: Alstom Technology AG

A static synchronous compensator for use in reactive power compensation, the static synchronous compensator comprising at least one primary compensator limb including first and second DC terminals, and an AC terminal for connection in use to an AC network, the or each primary compensator limb defining first and second limb portions, each limb portion-including at least one switching element connected in series with a chain-link converter-between a respective one of the first and second DC terminate and the AC terminal, the switching elements of the first and second limb portions being operable to switch the respective chain-link converters in and out of circuit between the respective DC terminal and the AC terminal and the chain-link converters being operable to generate a voltage waveform at the AC terminal; and a secondary compensator limb including at least one DC link capacitor connected between the first and second DC terminals, the secondary compensator limb being connected in parallel with the or each primary compensator limb.

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Номер записи: 64
25-04-2013 дата публикации

Disconnect switch for distributed energy system

Номер: US20130099566A1
Автор: Adil Oudrhiri, Hans-Erik Pfitzer
Принадлежит: Thomas and Betts International LLC

A switching assembly includes a first terminal and a second terminal, a first switch connected to the first terminal, and a second switch connected to the second terminal. The switching assembly further includes a rectifier bridge connected between the first switch and the second switch, and a third switch connected between the first terminal and the second terminal. The switching assembly also includes a control unit that selectively opens and closes the first switch, the second switch and the third switch, and selectively turns on and off the rectifier bridge.

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Номер записи: 65
25-04-2013 дата публикации

Safe Exposed Conductor Power Distribution System

Номер: US20130103220A1
Автор: Eaves Stephen S.
Принадлежит: VOLTSERVER INC.

A power distribution system (that can detect an unsafe fault condition where an individual or object has come in contact with the power conductors) regulates the transfer of energy from a source to a load. Periodically, the source controller opens an S disconnect switch, a and load controller opens an S disconnect switch. A capacitor represents the capacitance across the load terminals. If the capacitor discharges at a rate higher or lower than predetermined values after the S and S disconnect switches are opened, then a fault condition is registered, and the S and S switches will not be commanded to return to a closed position, thus isolating the fault from both the source and the load. 1. A power distribution system for regulating transfer of energy from a source on a source side and including source terminals to a load on a load side and including load terminals , the system comprising:a) a source controller on the source side of the power distribution system responsive to a source sensor that provides feedback to the source controller that includes at least a signal indicative of the voltage across the source terminals;b) a source disconnect device responsive to a control signal from the source controller for electrically connecting or disconnecting the source from the source terminals, wherein the source controller is configured to interrupt the supply of power by opening the source disconnect device when voltage is measured across the source terminals;c) a load disconnect device for electrically decoupling the load from the load terminals; andd) a logic device implemented in at least the source controller for determining whether the source disconnect device is to be opened to interrupt the electrical connection between the source and source terminals based on a predetermined set of conditions that includes at least whether the change in voltage across the source terminals in respect to time falls outside a predetermined range.2. The power distribution system ...

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Номер записи: 66
25-04-2013 дата публикации

Demand side management module

Номер: US20130103222A1
Автор: Brian Michael Schork, Byron K Guernsey, Darin Franks, Darko Ilickovic, David C Bingham, Eric K Watson, John K Besore, Mallika Ravindra Patel, Michael Thomas Beyerle
Принадлежит: General Electric Co

A household appliance system comprising an appliance control system having a common appliance interface provided on an appliance and a demand side management module connected to the common appliance interface. The module corresponds to one select utility of a plurality of utilities and is configured to communicate with the one select utility of the plurality of utilities. The appliance control system operates the appliance based on communications with the one select utility through the module.

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Номер записи: 67
25-04-2013 дата публикации

METHOD AND SYSTEM FOR OPERATING A VIRTUAL ENERGY NETWORK

Номер: US20130103557A1
Автор: Larocque Audry, RICHARD Benoit
Принадлежит:

The present relates to a method and system for operating a virtual energy network. The method and system receives electricity at a local energy network from an electric grid, stores at an energy storage appliance electricity received from the electric grid at a first period of time, and provides electricity from the energy storage appliance to the local energy network at a second period of time. The cost of the electricity provided by the electric grid is lower at the first period of time than at the second period of time. The energy storage appliance is connected to a management unit via a communication network, from which it receives an energy storage policy. Also, the electric grid, a plurality of energy storage appliances connected to the electric grid and to a corresponding plurality of local energy networks, and the management unit constitute a virtual energy network. 2. The method of claim 1 , wherein the energy storage appliance comprises at least one battery for storing the electricity received from the electric grid.3. The method of claim 1 , wherein the energy storage appliance is connected to a management unit via a communication network.4. The method of claim 3 , wherein the energy storage appliance receives an energy storage policy from the management unit.5. The method of claim 4 , wherein the energy storage policy specifies at least one period of time for storing electricity received from the electric grid in the energy storage appliance and at least one period of time for providing the electricity stored in the energy storage appliance to the local energy network.6. The method of claim 5 , wherein the at least one period of time for storing the electricity and the at least one period of time for providing the electricity are determined based on the price of the electricity provided by the electric grid at different periods of time.7. The method of claim 3 , wherein the electric grid claim 3 , a plurality of energy storage appliances connected to the ...

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Номер записи: 68
09-05-2013 дата публикации

Load Control System Providing Manual Override of An Energy Savings Mode

Номер: US20130113284A1
Автор: Altonen Gregory, Fricke William Bryce, Jacoby Elliot G., Pessina Michael W., Spira Joel S., Zaharchuk Walter S.
Принадлежит: LUTRON ELECTRONICS CO., INC.

A load control system for a building having a lighting load, a window, and a heating and cooling system comprises a lighting control device, a daylight control device, and a temperature control device operable to be controlled so as to decrease a total power consumption of the load control system in an energy-savings mode. The energy-savings mode can be manually overridden in response to actuation of the actuator of an input control device, such that the load control system enters a manual mode for manually adjusting the loads controlled by the lighting control device, the daylight control device, and the temperature control device. The load control system is operable to automatically return to the energy-savings mode at a time after the load control system entered the manual mode. 1. A load control system for a building having a lighting load located in a space of the building , a heating and cooling system , and a window located in the space of the building , the load control system comprising:a lighting control device for controlling the amount of power delivered to the lighting load;a daylight control device for controlling the amount of natural light to be admitted through the window;a temperature control device for controlling a setpoint temperature of the heating and cooling system to thus control a present temperature in the building; andan input control device comprising an actuator and operable to transmit a digital message to at least one of the lighting control device, the daylight control device, and the temperature control device in response to an actuation of the actuator;wherein the lighting control device, the daylight control device, and the temperature control device are operable to operate in an energy-savings mode so as to automatically reduce a total power consumption of the load control system, the energy-savings mode being manually overridden in response to actuation of the actuator of the input control device, such that the load control ...

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Номер записи: 69
09-05-2013 дата публикации

Power control method, power control device, and image forming apparatus

Номер: US20130114969A1
Автор: Hitoshi Wakide
Принадлежит: KONICA MINOLTA BUSINESS TECHNOLOGIES INC

A power control method for performing phase control is provided. The method includes generating a zero-crossing signal that indicates a first level if an absolute value of AC voltage is smaller than a predetermined value, and indicates a second level if the absolute value of the AC voltage is larger than the predetermined value; detecting a zero-crossing width and a non-zero-crossing width, the zero-crossing width being a time width for a case where the absolute value of the AC voltage is smaller than the predetermined value, the non-zero-crossing width being a time width for a case where the absolute value is larger than the predetermined value; detecting a frequency and a voltage value of the AC voltage based on the zero-crossing width and the non-zero-crossing width; and performing phase control depending on the frequency and the voltage value.

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Номер записи: 70
09-05-2013 дата публикации

Outage schedule management apparatus and method in ems

Номер: US20130116843A1
Автор: Yoon Sung Cho, Young In Kim
Принадлежит: LSIS Co Ltd

An outage schedule management apparatus and a method are provided, wherein a topology change is executed in response to an outage schedule set up by a user input, and a validity determination is executed to system operation standard to approve an outage.

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Номер записи: 71
09-05-2013 дата публикации

Grid load synchronization device and method

Номер: US20130116844A1
Автор: John M. McNally, Peter Gottlieb
Принадлежит: A123 Systems Inc

The grid load synchronization system described herein permits proactive mitigation of the effects of large loads transitioning on and off the power grid and the resultant risks and power quality issues associated therewith. The disclosed proactive system permits a grid-connected power consumer to synchronize demand with power storage equipment in real time using a digital communication link. The power consumer transmits requests to bring a load online or offline to a control site. The control site coordinates power grid source(s) and power grid loads to maintain power quality when loads go on and offline. The control sites manage requests from multiple power consumers and schedule the various loads for the consumers to mitigate the effects of large loads transitioning on and off the power grid. The resulting power quality can be guaranteed when adequate battery resources are made proactively available, rather than reacting to line conditions to engage compensation actions.

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Номер записи: 72
09-05-2013 дата публикации

METHOD FOR CONTROLLING THE STABILITY OF AN ELECTRIC SUPPLY GRID

Номер: US20130116845A1
Автор: Krug Florian
Принадлежит:

A method for controlling the stability of an electric supply grid is provided. A first device, designed to exchange electrical energy with the supply grid, locates a part of the supply grid, with which the first device is associated for an energy connection, by a geographic location of the first device. The first device determines parameters for an intended energy exchange. At least one second device associated with the part of the supply grid for energy exchange also determines parameters for an intended energy exchange. The first device performs the energy exchange considering the parameters of the first and the second device such that an electric stability of the part of the supply grid is ensured. 113.-. (canceled)14. A method for controlling the stability of an electric supply grid , comprising:locating a supply grid by a first device via a geographical location of the first device, wherein the first device is embodied to exchange electrical energy with the supply grid,determining, by the first device, first parameters for an energy exchange with the supply grid,determining, by a second device associated with the supply grid, second parameters for an energy exchange with the supply grid, andexchanging electrical energy between the first device and the supply grid based upon the first and second parameters such that an electrical stability of the supply grid is ensured.15. The method as claimed in claim 14 , wherein an end consumer claim 14 , as the first device and/or as the second device claim 14 , determines the first and/or second parameters for the energy exchange.16. The method as claimed in claim 14 , wherein the second device is a power plant component.17. The method as claimed in claim 15 , wherein the end consumer is an electrically-powered car.18. The method as claimed in claim 14 , wherein the first and/or second parameters are selected from the group consisting of an intended power exchange with the first and/or second device claim 14 , a prevailing ...

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Номер записи: 73
09-05-2013 дата публикации

Multichannel power controller

Номер: US20130116848A1
Автор: Mitsugu Honda, Shigefumi Goto
Принадлежит: RKC INSTRUMENT Inc

An object of the present invention is to provide a multichannel power controller for limiting the number of channels with outputs therefrom simultaneously turned on and enabling power conditioning that makes the ratio of the “ON time” to the “ON+OFF time” for the output proportional to the input value, thus allowing the power capacity of the power plant to be set to the minimum required value, when a plurality of channels are subjected to time-sharing output control.

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Номер записи: 74
23-05-2013 дата публикации

Method And Arrangement For Capacitor Bank Protection

Номер: US20130128393A1
Автор: Zoran Gajic
Принадлежит: Individual

A method for protecting against a failure within a multi-phase capacitor bank including a plurality of capacitor units each including a plurality of capacitor elements connected to each other, wherein capacitor units are connected to each other and the failure may involve two neighboring capacitor units. The method includes steps of measuring the current of each individual phase of the capacitor bank, calculating the magnitude of an unbalanced current based on the measured currents, measuring the voltage of each individual phase of the capacitor bank, calculating the magnitude of an unbalanced voltage based on the measured voltages, determining an operating point based on the calculated magnitudes of the unbalanced current and the unbalanced voltage, examining where the defined operating point is located in a specified operating region, and initializing a trip signal based on the location of the defined operating point in the specified operating region.

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Номер записи: 75
30-05-2013 дата публикации

APPARATUS AND METHOD FOR USE IN TRANSFERRING AN ELECTRICAL POWER SUPPLY IN ORDER TO BYPASS A TRANSFORMER BASED VOLTAGE OPTIMIZATION DEVICE

Номер: US20130134802A1
Автор: Taylor David
Принадлежит: EMSC (UK) LIMITED

A transformer based voltage-optimization device configured for use as a component of an electrical circuit that is associated with an electrical power supply, a load and a bypass switch connection, the voltage optimization device comprising a transformer comprising a control winding, an electrical power input means and a transformer tap, the voltage optimization device characterized by further comprising a control means configured to control the voltage potential across said transformer wherein the control means is configured to substantially equalize the voltage and the associated phase angle of the voltage across the transformer in order to limit the voltage potential across the control winding before disconnecting the transformer from the power supply. 150-. (canceled)51. A transformer based voltage optimization device configured for use as a component of an electrical circuit that is associated with an electrical power supply , a load and a bypass switch connection , said voltage optimization device comprising:a transformer comprising a control winding, an electrical power input means and a transformer tap;said voltage optimization device characterized by further comprising:a control means configured to control the voltage across said transformer, wherein:said control means is configured to substantially equalize the voltage and the associated phase angle of the voltage across said transformer in order to limit the voltage across said control winding before said bypass switch disconnects said transformer from said power supply, such that said transformer is bypassed without loss of power to the load.52. A transformer based voltage optimization device as claimed in claim 51 , wherein said device is of the type configured to step down said supplied voltage.53. A transformer based voltage optimization device as claimed in claim 52 , wherein said control means comprises a plurality of switches.54. A transformer based voltage optimization device as claimed in claim ...

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Номер записи: 76
06-06-2013 дата публикации

Current monitoring and limiting apparatus, system and method for electric vehicle supply equipment

Номер: US20130141040A1
Автор: Brian Timothy Mccoy, Drew Stephen Hancock, Harry Price Haas, John DeBoer, Scott Clayton TURNER
Принадлежит: Siemens Industry Inc

An electric vehicle charging system is disclosed. More particularly, the system encompasses a load center having one or more electrical loads coupled thereto, electric vehicle supply equipment (EVSE) to charge an electric vehicle (EV), and a monitoring and limiting device (MLD) to monitor power or current usage of at least the one or more loads coupled to the load center, and adjust a charging level setting of the EVSE based upon the level of the usage. MLD apparatus and methods of charging a vehicle with electric vehicle supply equipment (EVSE) are provided, as are other aspects.

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Номер записи: 77
06-06-2013 дата публикации

System and method for optimizing use of plug-in air conditioners and portable heaters

Номер: US20130144445A1
Автор: John Douglas Steinberg
Принадлежит: Ecofactor Inc

Thermostatic HVAC and other energy management controls that are connected to a computer network. For instance, remotely managed load switches incorporating thermostatic controllers inform an energy management system, to provide enhanced efficiency, and to verify demand response with plug-in air conditioners and heaters. At least one load control device at a first location comprises a temperature sensor and a microprocessor. The load control device is configured to connect or disconnect electrical power to the an attached air conditioner or heater, and the microprocessor is configured to communicate over a network. In addition, the load control device is physically separate from an air conditioner or heater but located inside the space conditioned by the air conditioner or heater.

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Номер записи: 78
13-06-2013 дата публикации

Power distribution system control and monitoring

Номер: US20130147443A1
Автор: John F. Jackman
Принадлежит: Individual

In one example embodiment, a power control system includes one or more stages, a plurality of primary busbars operatively coupled to the one or more stages, and an intelligent controller operatively coupled to the one or more stages. Each of the one or more stages is configured to generate a lead current when coupled in parallel to a power distribution system, and at least one of the one or more stages comprises a notch filter and a power tank circuit. Each of the plurality of primary busbars is configured to carry one phase of a multiple phase power signal. The controller is configured to determine when to switch each of the one or more stages one and off, to count a number of times each stage is switched on, and to track one or more electrical parameters of the power distribution system, power control system, or both.

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Номер записи: 79
20-06-2013 дата публикации

Reactive regulator

Номер: US20130154607A1
Автор: Paulo Rogerio Granja
Принадлежит: ITB EQUIPAMENTOS ELETRICOS LTDA

A Reactive regulator capable of introducing reactive powers in an AC electrical system in order to satisfy the reactive power demanded by the loads of such electrical system in a gradual way, when demanded, and in as many stages as necessary to improve the efficiency and viability of such electrical system by having ways to vary the voltage on one or more reactive elements through a coupling element, transformer, autotransformer or any other type of variable voltage drive, whose primary is connected to an electrical system through terminals and the secondary is connected to a reactive element through at least one switch, of solid state or not, which allows the connection of a mobile terminal to any of the derivations of the secondary of the coupling device.

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Номер записи: 80
20-06-2013 дата публикации

Energy Management On Board an Aircraft

Номер: US20130158750A1
Автор: Joel Bosson, Vincent Gomez
Принадлежит: Liebherr Aerospace Toulouse SAS, Thales SA

Energy management on board an aircraft includes: a plurality of thermal and electrical energy sources, a plurality of loads which are capable of being supplied with power by the various energy sources, among which at least one load is capable of being supplied with power by an electrical energy source and by a thermal energy source, and real-time management means for energy transfers from the various energy sources to the various loads as a function of the present and future energy requirement of the various loads and the present and future availability of the various sources, with the management means providing a permanent and standardized correlation between thermal and electrical energies.

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Номер записи: 81
27-06-2013 дата публикации

Apparatus and method for stabilizing an electrical power import

Номер: US20130162038A1
Автор: Hans-Joachim Hof, Rainer Falk, Steffen Fries
Принадлежит: SIEMENS AG

An apparatus and a method for stabilizing an electrical power import from a power distribution system by way of at least one subscriber connected to the power distribution system via an electrical connection. An electrical power import anomaly when electrical power is imported by the respective subscriber from the power distribution system is identified using transmitted control messages, which are determined for the respective subscriber or originate from the respective subscriber. Once an electrical power import anomaly has been identified, power consumption units or power generation units are driven correspondingly. The apparatus effectively protects the power distribution system from third-party intervention or implementation errors which can bring about an unstable system response.

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Номер записи: 82
27-06-2013 дата публикации

Methods and Systems For Controlling An Intra-Plant Voltage Level

Номер: US20130162047A1
Автор: Jovan Z. BEBIC, Kathleen Ann O'brien, Ralph Teichmann
Принадлежит: Individual

A power plant coupled to, and configured to provide power to, an electrical grid, is described. The power plant includes a plurality of power converters electrically coupled to, and configured to receive power from, at least one power source. The power plant also includes a voltage regulation device electrically coupled between the power converters and the electrical grid. The voltage regulation device includes a series transformer and a bi-directional converter configured to regulate a voltage at an output of the power converters.

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Номер записи: 83
27-06-2013 дата публикации

Robot and power consumption estimating system

Номер: US20130166069A1
Автор: Ken Watanabe, Makoto Inoue, Motohide Ikeda
Принадлежит: Eneres Co Ltd, Japan Research Institute Ltd

Provided is a robot comprising a device manipulating section that turns ON and OFF a plurality of devices that operate by receiving power from a power supply; a power value acquiring section that acquires a first total power value that is a power value before one of the devices is turned ON or OFF by the device manipulating section and a second total power value that is a power value after the device is turned ON or OFF, via a power sensor that measures a total power value supplied to the plurality of devices from the power supply; and a power consumption estimating section that estimates power consumption of the device based on the first total power value and the second total power value.

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Номер записи: 84
11-07-2013 дата публикации

WIND FARM AND METHOD FOR OPERATING A WIND FARM

Номер: US20130175870A1
Автор: Fortmann Jens
Принадлежит: REPOWER SYSTEMS SE

Operating a wind farm in which the power generated by the wind energy installations is fed to a power supply system via a system internal to the wind farm and via a substation is disclosed. The farm director of the wind farm can ascertain a standard target voltage value and transmit it to the control units of the individual wind energy installations on the wind farm, which can use an overall factor to regulate the reactive power generated by a wind energy installation. The overall factor can be calculated from the difference between the actual voltage across the wind energy installation and the target voltage value, multiplied by a gain factor. On account of the impedance in the internal system of the wind farm, wind energy installations situated far away from the substation thus generate less reactive power than the wind energy installations which are situated close to the substation. 1. A method for operating a wind farm having a plurality of wind energy installations , each having a control unit , which are connected to an internal wind farm network , a substation at which electrical power that is generated on the wind farm is delivered by the internal wind farm network to a power supply network , and a farm master that is connected to the control units of the individual wind energy installations , comprising:determining, by the farm master, a uniform target voltage value,transmitting, by the farm master, the target voltage value to the control units of the individual wind energy installations, andadjusting, by the control unit of the wind energy installation, the reactive power that is generated by a wind energy installation by an overall factor, wherein the overall factor comprises a first factor that is calculated from the difference between the actual voltage present at the wind energy installation and the target voltage value, multiplied by a gain factor.210. The method of claim 1 , wherein the overall factor comprises another factor to be added to the first ...

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Номер записи: 85
18-07-2013 дата публикации

Demand response adaptor for connecting a device to a demand response system or home automation system, device and such demand response adaptor and use thereof

Номер: US20130184881A1
Автор: Koen VANTHOURNOUT
Принадлежит: Vlaamse Instelling Voor Technologish Onderzoek NV VITO

Demand response adaptor provided such that, depending on the device connected to the demand response adapter, the demand response control system can be provided with the second constraints corresponding to the device connected to the demand response adapter, wherein the demand response control system comprises software components for making the decision based on the first constraints, the second constraints and the third constraints, wherein the controller ( 5 ) comprises software components for detecting the start of a program by analyzing the amount of electrical power used by the device in function of time detected by the sensor ( 6 ) and wherein the controller ( 5 ) of the adaptor comprises software components for switching the relay ( 4 ) to the nonconductive state when the start of the program is detected until, based on the decision of the demand response control system, the controller ( 5 ) switches the relay switch ( 4 ) to the conductive state.

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Номер записи: 86
18-07-2013 дата публикации

DISPATCHABLE RENEWABLE ENERGY GENERATION, CONTROL AND STORAGE FACILITY

Номер: US20130184884A1
Автор: Brake Daniel, Ellena Gregory F., Keener James A., More Eduardo J.
Принадлежит: Inventus Holdings, LLC

The present invention includes a system and method for generating, controlling and storing dispatchable renewable energy. The system may include one or more wind power generation facilities and one or more solar power generation facilities to generate power that can be stored by one or more storage facilities. The power can be supplied to a power grid at a level determined by actual or predicted weather conditions, based on variable power demands. The power generated by the renewable energy sources may be combined with power generated by conventional power generation facilities to provide power in a dispatchable manner. 1. An electrical power generation system comprising: said first output terminals having an electrical connection to a contractor, said contractor having an electrical connection to a circuit breaker, said circuit breaker having an electrical connection to a transformer, said transformer having an electrical connection to an electrical grid;', 'said second output terminals having an electrical connection to a power converter, said power converter further comprising first and second rectifier-inverters having alternating current (AC) and direct current (DC) terminals, a generator control unit and a capacitor, said AC terminals of said first rectifier-inverter having an electrical connection to said second output terminals of said generator, said DC terminals of said first rectifier-inverter having an electrical connection to said DC terminals of said second rectifier-inverter, said capacitor being electrically connected across said electrical connections between said DC terminals of said first and second rectifier-inverters;, 'a wind turbine mechanically connected to an electrical generator having at least first and second electrical output terminals,'}a turbine control unit having means for controlling said wind turbine;an energy storage device having input and output terminals, said input terminals having an electrical connection to DC terminals of a ...

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Номер записи: 87
01-08-2013 дата публикации

DYNAMIC LOAD SHEDDING SYSTEM FOR A STANDBY GENERATOR

Номер: US20130193757A1
Автор: Batzler Brandon M., Lim Sie Teong, Stair Kenny J.
Принадлежит: Briggs & Stratton Corporation

A method and system for managing electrical loads on a standby generator. The method includes utilizing a transfer switch control to selectively shed loads each associated with one of a series of priority circuits. Priority values are initially assigned to each of the electric loads based upon the initial hard-wired connection of the electric loads to a main breaker panel during set up. The control unit of a transfer switch allows the user to reassign priority values to each of the electric loads based upon a user preference. The control unit includes one or more predefined priority assignment programs that can be selected to modify the priority values assigned to the electric loads. 121-. (canceled)22. A method of managing a plurality of electric loads powered by a standby generator , the method comprising , the steps of:interconnecting each of the plurality of electric loads to one of a plurality of outputs such that the electric loads receive power through the outputs;providing a plurality of predefined priority assignment programs in a control unit;assigning a priority value to each of the electric loads between a highest priority value and a lowest priority value for each of the priority assignment programs, wherein the initial priority values assigned to the electric loads vary among the plurality of priority assignment programs;selecting one of the predefined priority assignment programs;monitoring a combined load on the generator;disconnecting the electric loads from the generator in a sequential order from the lowest priority value to the highest priority value based on the assigned priority values according to the selected priority assignment program when the combined load on the generator reaches a rated value for the generator, wherein the electric loads having the lowest priority value are sequentially disconnected from the generator until the combined load on the generator falls below the rated value for the generator; andreassigning the priority ...

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Номер записи: 88
15-08-2013 дата публикации

Home energy management apparatus and method for interworking with new renewable energy

Номер: US20130207466A1
Автор: Il Woo Lee, Jeong In Lee
Принадлежит: Electronics and Telecommunications Research Institute ETRI

A home energy management apparatus and method for interworking with a new renewable energy are provided.

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Номер записи: 89
15-08-2013 дата публикации

Method for planning and/or controlling an energy output to a consumer and/or an energy supply to an energy distribution network

Номер: US20130211609A1
Автор: Joachim Edtmair, Wolfgang Bernhard
Принадлежит: ATB AUTOMATISIERUNGSTECHNIK GmbH and Co KG

A method for planning and/or controlling an energy output to a consumer and/or an energy supply to an energy distribution network includes generating at and transmitting from a first energy supplier first messages relating to current tariffs and/or planned tariffs to be expected and/or expected network loads, and relating to a value for a probability that the expected current or planned tariffs and the expected network capacity utilization will actually occur.

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Номер записи: 90
15-08-2013 дата публикации

Hybrid energy storage system, renewable energy system including the storage system, and method of using same

Номер: US20130211616A1
Автор: Charles W. Huddleston, Gregory Miller, Jeff Dermott, Kevin E. Ames, Michael Parrot, Randy Moore, Ron Nowlin, Viet Vu
Принадлежит: EaglePicher Technologies LLC

This disclosure generally relates to stabilizing energy provided by an energy source, and more particularly to systems and methods for using multiple types of energy storage devices to selectively capture and provide energy. An energy source provides energy, and the energy storage devices selectively capture energy provided by the energy source in excess of an immediate energy requirement of a load and selectively provide energy when the immediate energy requirement of the load exceeds the energy provided by the energy source.

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Номер записи: 91
29-08-2013 дата публикации

Network system

Номер: US20130221749A1
Автор: Hoonbong Lee, Junho Ahn, Kangwoon CHEON, Koonseok Lee, Yanghwan Kim
Принадлежит: LG ELECTRONICS INC

A network system is provided. The network system includes: at least one component of an energy supply unit supplying energy and an energy management unit managing the energy supply unit. An amount of energy used or energy charge of the energy supply unit is adjustable. An amount of energy used or energy charge when the component is controlled on the basis of information related to at least usage charge may be less than that when the component is controlled not on the basis of the information related to at least usage charge. Also, the energy supply unit has a power saving mode to determine a driving method or a driving time of the energy supply unit on the basis of the information related to energy charge.

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Номер записи: 92
29-08-2013 дата публикации

Policy-driven automated facilities management system

Номер: US20130226320A1
Автор: Anker Berg-Sonne, David M. Huselid, Howard A. Nunes, Sumanth Rayancha
Принадлежит: PepperDash Technology Corp

An automated facilities management system has the ability to predict occupant behavior by identifying recurring patterns in the way that people use buildings and comparing them with environmental characteristics. This technology is not limited to human behavior patterns, but extends to any mechanical systems or data points that tend to vary in recurring patterns. The data processing is carried out by rules engines triggered by relational database modifications.

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Номер записи: 93
29-08-2013 дата публикации

Continuous Dynamic Balancing of Generation and Loads

Номер: US20130226360A1
Автор: Charles Grunewald, Thomas Alexander Wilkins
Принадлежит: POWER QUALITY RENAISSANCE LLC

Methods and apparatus for dynamically balancing at least one load characterized by an associated energy reservoir with at least one renewable energy source where both the load and the renewable energy source coupled to a power transmission system. A central controller regulates energy delivery to one or more loads over the power transmission system by anticipating energy demand over an interval of time, accounting for the status of the associated energy reservoir. Each load is linked with at least one renewable energy source. The anticipated energy demand is synchronized with delivery of energy by the renewable energy source by commands delivered to a local switching and monitoring device coupled to the load and subject to override by a local user.

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Номер записи: 94
05-09-2013 дата публикации

Multi-Phase Operation with Single Phase Control

Номер: US20130229159A1
Автор: Christopher J. Coughlin, Craig A. Colopy, Daniel J. Daley, Timothy M. KROMREY, Timothy P. Brenny
Принадлежит: Cooper Technologies Co

A multi-phase control system having multi-phase operation with single phase control includes a main control module, a lineman module, and an add-on lineman module. The main control module and the lineman module control, automatically or manually, the first phase and first phase tap changer of a multi-phase system. The add-on lineman module and the main control module control, automatically or manually, additional phases of the multi-phase system. In certain example embodiments, the multi-phase control system detects when a line voltage of an additional phase is de-energized and allows the tap changer of the additional phase to be powered by a line voltage of the first phase. In certain example embodiments, the tap changer of a de-energized phase is powered by an external power supply.

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Номер записи: 95
12-09-2013 дата публикации

METHOD AND DEVICE FOR MULTIFUNCTIONAL POWER CONVERSION EMPLOYING A CHARGING DEVICE AND HAVING REACTIVE POWER CONTROL

Номер: US20130234521A1
Автор: Bae Joung Hwan, Choi Gi Su, Eom Ju Kyoung
Принадлежит: IN-TECH FACTORY AUTOMATION CO., LTD

Provided is a multifunctional power-conversion system which controls active power and reactive power by employing distributed power. With respect to the multifunctional power-conversion system according to the present invention, an auxiliary power device, using wind power and/or solar power, is connected to a power system; and a distributed power device, such as a battery, for temporarily storing power is connected thereto while being connected to the auxiliary power device. A power converter connects a high-capacity power supply source, such as a periodic power source or a main power supply source, to the system. Therefore, the electricity consumption status is checked such that the control of active power and reactive power is enabled. 1. A power conversion device capable of controlling reactive power , the power conversion device comprising:an alternative power input unit receiving alternative power from one or more auxiliary power supply device;a power conversion switching unit converting power received via the alternative power input unit to AC power;a charging power supply unit connected to the alternative power input unit and stores power supplied from at least one from between the alternative power input unit and a grid; anda power control unit, which receives information regarding a power factor, demanded active power, and demanded reactive power from the grid connected to a consuming load and controls a voltage and a current output by the power conversion switching unit and a phase difference between the voltage and the current to satisfy the power factor, the demanded active power, and the demanded reactive power received from the grid.2. The power conversion device of claim 1 , wherein the power control unit charges power received via the alternative power input unit from the auxiliary power supply device to the charging power supply unit claim 1 , if it is not necessary to supply power from the alternative power input unit or the charging power supply ...

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Номер записи: 96
12-09-2013 дата публикации

M2LC System and Method for Controlling Same

Номер: US20130234681A1
Автор: Kenneth Stephen Berton, Marc Francis Aiello, Walter Gilbert Barie
Принадлежит: Curtiss Wright Electro Mechanical Corp

A modular multilevel converter system. The system includes a plurality of series connected two-terminal M2LC cells arranged into at least two output phase modules. A first one of the output phase modules has an inductance and an effective capacitance associated therewith. The first one of the output phase modules is configured so that a natural resonant frequency of the inductance with the effective capacitance of the first one of the output phase modules is greater than at least one of the following: an operating frequency of the first one of the output phase modules; a switching frequency of the first one of the output phase modules; and a switching frequency of any of the M2LC cells of the first one of the output phase modules.

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Номер записи: 97
19-09-2013 дата публикации

Wind Turbine and Method for Operating a Wind Turbine

Номер: US20130241201A1
Автор: Jens Fortmann
Принадлежит: REPOWER SYSTEMS SE

A method is employed for operating a wind turbine. Electrical energy is produced by means of a generator and is fed into an electrical power network. The electrical energy is fed to the secondary side of a transformer at a low voltage and is output on the primary side of the transformer at a higher voltage. The potential on the primary side of the transformer is undefined. In the method, a measured value of the voltage between the primary side of the transformer and the earth potential is first recorded. The measured value is compared with a predefined limit value. The electrical energy produced by the generator is changed if the measured value exceeds the limit value. A wind turbine is designed to carry out the method. Faults in the medium voltage network can be reacted to without an additional star point on the primary side of the transformer being required.

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Номер записи: 98
19-09-2013 дата публикации

Load Distribution System and Power Management System and Method

Номер: US20130241284A1
Автор: Gary Mulcahy, John Santini, Lazar Rozenblat, Ronald DeLuca
Принадлежит: Transistor Devices Inc

A power management system for distributed power management from a power source to a plurality of power units, using a monitor bus to monitor total power usage on a branch to which the power unit is assigned, allowing power to be delivered if it won't result in a maximum current draw from the power source being exceeded, and denying access if it would. Each power unit adds a signal to the monitor bus proportional to the current it is drawing from the power source.

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Номер записи: 99
26-09-2013 дата публикации

Method for automatically re-phasing the current of a domestic electrical network

Номер: US20130249503A1
Автор: Mauro Tentoni, Renzo Tentoni
Принадлежит: SILECTRA DI MAURO TENTONI, TECNOPROGETTI DI RENZO TENTONI

Method ( 200 ) for automatically re-phasing the current of a domestic electrical network or similar, through an automatic electrical re-phasing apparatus comprising the steps of:—comparing ( 202 ) for a first portion of a set execution time period, through a central processing unit ( 10 ) of such an electrical re-phasing apparatus, electrical operating parameters detected by the electrical network with respective preset electrical reference operating parameters, said step of comparing ( 202 ) comprising a step of calculating ( 205 ) through the central processing unit a phase shift representative of the power factor;—sampling ( 209 ), through the central processing unit, in the said first portion of time, such electrical operating parameters detected by the electrical network and the calculated phase shift; calculating ( 210 ), through the processing unit, in the said first portion of time, a correction value of the calculated phase shift; controlling ( 211 ), through the central processing unit, in a second portion of the set execution time period the insertion or removal of a quantity of a plurality of microcapacities from the electrical network based on such a calculated correction value.

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Номер записи: 100