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Небесная энциклопедия

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

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

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Применить Всего найдено 4. Отображено 4.
07-10-2009 дата публикации

PMU synchronized clock system added by dynamic compensation

Номер: CN0101551640A
Автор: YAN ZHENG, LI LI, WANG XINGZHI, SU GUANGNING, LI YUPENG, ZHENG YAN, XINGZHI WANG, GUANGNING SU, YUPENG LI
Принадлежит:

The invention relates to a PMU synchronized clock system added by dynamic compensation belonging to the electric power system monitoring and controlling technology field, which comprises a GPS module, a crystal oscillator clock module, a microprocessor and a dynamic error processing system. Wherein, the GPS module sends the outputted data frame to the microprocessor, and sends second pulse signal to the dynamic error processing system; the crystal oscillator clock module sends the outputted second pulse signal to the dynamic error processing system; the dynamic error processing system performs judging and error processing to the second pulse signals; the microprocessor receives the RS-232 data frame from the GPS module, processes the serial outputted time message in real time and sends it to the PMU sampling system, receives the signal from the dynamic error processing system at the same time, and adjusting the signal correspondingly. The invention improves the clock precision, and can ...

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Номер записи: 1
11-11-2009 дата публикации

Power system state estimator applicable to wide area measurement system

Номер: CN0101577426A
Автор: LI LI, ZHENG YAN, XINGZHI WANG, YUPENG LI, GUANGNING SU, YAN ZHENG, WANG XINGZHI, LI YUPENG, SU GUANGNING
Принадлежит:

The invention relates to a power system state estimator applicable to a wide area measurement system in the technical field of operation and control of power systems. The power system state estimator comprises a data fusion module, a system identification module, a transient stability control module and a security evaluation module, wherein the data fusion module only stores 'key' data which reflect electric network characteristics and meet measurement accuracy; the system identification module modifies system parameters and data, and an output of the system identification module is connected with the transient stability control module; the transient stability control module sends processed data into the security evaluation module and performs security evaluation on the system; and the security evaluation module finally outputs important information. The power system state estimator can realize the fusion, real-time state estimation and analytical evaluation for mass data, ensure the safe ...

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Номер записи: 2
16-11-2011 дата публикации

Power system state estimator applicable to wide area measurement system

Номер: CN0101577426B
Автор: LI LI, ZHENG YAN, XINGZHI WANG, YUPENG LI, GUANGNING SU, YAN ZHENG, WANG XINGZHI, LI YUPENG, SU GUANGNING
Принадлежит:

The invention relates to a power system state estimator applicable to a wide area measurement system in the technical field of operation and control of power systems. The power system state estimator comprises a data fusion module, a system identification module, a transient stability control module and a security evaluation module, wherein the data fusion module only stores 'key' data which reflect electric network characteristics and meet measurement accuracy; the system identification module modifies system parameters and data, and an output of the system identification module is connectedwith the transient stability control module; the transient stability control module sends processed data into the security evaluation module and performs security evaluation on the system; and the security evaluation module finally outputs important information. The power system state estimator can realize the fusion, real-time state estimation and analytical evaluation for mass data, ensure the safe ...

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Номер записи: 3
03-11-2010 дата публикации

PMU synchronized clock system added by dynamic compensation

Номер: CN0101551640B
Автор: YAN ZHENG, LI LI, WANG XINGZHI, SU GUANGNING, LI YUPENG, ZHENG YAN, XINGZHI WANG, GUANGNING SU, YUPENG LI
Принадлежит:

The invention relates to a PMU synchronized clock system added by dynamic compensation belonging to the electric power system monitoring and controlling technology field, which comprises a GPS module,a crystal oscillator clock module, a microprocessor and a dynamic error processing system. Wherein, the GPS module sends the outputted data frame to the microprocessor, and sends second pulse signalto the dynamic error processing system; the crystal oscillator clock module sends the outputted second pulse signal to the dynamic error processing system; the dynamic error processing system performsjudging and error processing to the second pulse signals; the microprocessor receives the RS-232 data frame from the GPS module, processes the serial outputted time message in real time and sends itto the PMU sampling system, receives the signal from the dynamic error processing system at the same time, and adjusting the signal correspondingly. The invention improves the clock precision, and canwork ...

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Номер записи: 4