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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 3. Отображено 3.
12-02-2014 дата публикации

Load smooth suppression method based on electric power communication soft exchange gateway

Номер: CN103581037A
Автор: XIA YONG, MA WEIZHE, MENG FANBO, ZHAO HONGHAO, JIN XIN, WANG ZHIMING, GE WEICHUN, ZHAO QINGQI, BAO XIN, XI QINGZHE, CAO YING, FAN JIPING, LIN ZHICHAO, LIU YANG
Принадлежит:

The invention provides a load smooth suppression method based on an electric power communication soft exchange gateway, and belongs to the technical field of load balance and resource optimization of electric power communication networks. Through the consideration of fairness and validity of the load suppression method, soft exchange gateway service overload is used a suppression condition, the CPU utilization rate and service cache space utilization rate of the soft exchange gateway are detected to determine whether the soft exchange gateway is in a service overload state or not and build a multi-objective optimization model. Through ant colony cluster intelligent optimization, the optimal feasible solution of the model can be obtained, and the smooth suppression to different services can be achieved. According to the load smooth suppression method, the purpose that valid and fair suppression can be carried out on different possible overload services through the ant colony cluster intelligent ...

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Номер записи: 1
04-04-2023 дата публикации

Power distribution network protection method and device based on fault time self-synchronization and fault component similarity

Номер: CN115912297A
Автор: YU YOU, TIAN JINGFU, LIU ZHENDONG, YANG FEI, QIAN HAI, MA QIANG, TIAN PENGFEI, WANG GANG, XI QINGZHE, QU FUDI
Принадлежит:

The invention discloses a power distribution network pilot protection method and device based on a fault time self-synchronization technology and fault component similarity characteristics, and provides a fault time self-synchronization technology by considering the influence of ground capacitance current and combining the KCL law, so as to eliminate the influence of asynchronous errors on the fault component similarity characteristics of positive sequence current at the two ends of a line, and improve the reliability of the power distribution network pilot protection. And self-synchronization of positive sequence current at two ends of the line is realized. In order to improve the anti-interference performance of the transition resistor, the fault component is used for constructing a protection criterion, according to the fault component similarity characteristics which are almost the same as the external fault in normal operation and are obviously different from the internal fault, the ...

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Номер записи: 2
11-04-2023 дата публикации

Power distribution network pilot protection method and device based on positive sequence current similarity characteristics

Номер: CN115954841A
Автор: QU FUDI, LIU ZHENDONG, TIAN JINGFU, YU YOU, YANG FEI, TIAN PENGFEI, MA QIANG, QIAN HAI, WANG GANG, XI QINGZHE
Принадлежит:

The invention discloses a power distribution network pilot protection method and device based on positive sequence current similarity characteristics, and the method comprises the steps: forming a feature vector through the positive sequence current at two ends of a line during normal operation, and reflecting the fault characteristics of an external fault after the maximum and minimum normalization processing; the single-class classification algorithm takes normal operation data as a training set, is matched with a positive sequence current self-synchronization technology considering a certain error, fully extracts comprehensive fault features such as amplitude and phase angle of positive sequence current, obtains classification boundaries of external faults and internal faults in a high-dimensional space, further considers the influence of a transient process, and improves the fault classification accuracy. The criterion threshold value of the power distribution network pilot protection ...

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Номер записи: 3