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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 5. Отображено 5.
30-05-2023 дата публикации

Markov model-based new energy output time sequence simulation method and device

Номер: CN116187023A
Автор: LIU DI, WU LINLIN, HUANG XIANMIAO, ZHAO YIMING, GONG YU, WANG KAIRANG
Принадлежит:

The invention provides a new energy output time sequence simulation method and device based on a Markov model, and relates to the technical field of electrics.The new energy output time sequence simulation method comprises the steps that meteorological parameters of the generation power of new energy are determined according to the characteristics of new energy output; obtaining the probability of the meteorological parameters based on a state transition probability matrix; establishing a new energy output model based on the influence factor meteorological parameters; establishing a state transition probability matrix based on the influence factors; and constructing a new energy output sequence based on a Markov chain model according to the probability of the meteorological parameters and on the basis of the output model and the state transition probability matrix. According to the Markov model-based new energy output time sequence simulation method and device provided by the invention, ...

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Номер записи: 1
27-06-2023 дата публикации

Coordination control method and device for improving frequency stability of optical storage system

Номер: CN116345491A
Автор: ZHAO YIMING, LIU HUI, WU LINLIN, XU MAN, GONG YU, WANG KAIRANG
Принадлежит:

The invention provides a coordination control method and device for improving the frequency stability of an optical storage system. The method comprises the steps that when an optical storage unit, a generator set, a voltage drop generator and an active load are collected through a DC-DC converter and then merged into the system through a DC-AC converter, a rotor motion equation of the system is constructed; dividing the load fluctuation condition of the system, wherein the dividing results are load sudden increase, load sudden decrease and steady-state operation; and corresponding synchronous machine superposition constraint equations are established according to different fluctuation conditions so as to carry out coordination control. The active power change in the system is used as a constraint condition, the control part of the frequency modulation unit is superposed, so that when the system load is changed, the amplitude of frequency fluctuation can be reduced while quick response ...

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Номер записи: 2
04-04-2023 дата публикации

Energy storage capacity configuration method and device of new energy station

Номер: CN115912446A
Автор: LIU HUI, WU LINLIN, LIU DI, GONG YU, ZHAO YIMING, HUANG XIANMIAO, WANG KAIRANG
Принадлежит:

The invention provides an energy storage capacity configuration method and device for a new energy station, which can be used in the power grid field or other fields, and the method comprises the steps: obtaining the capacity configuration information of a target new energy station in a plurality of time periods; according to the capacity configuration information corresponding to each time period, determining a scene corresponding to the time period of the target new energy station and an actual output value of energy storage participation in the scene; and determining energy storage optimal capacity configuration of the target new energy station according to a preset wind and light storage optimal capacity configuration model, the actual output value of energy storage participation in the scene corresponding to each time period and the pre-acquired energy storage real-time capacity, the preset wind and light storage optimal capacity configuration model takes the optimal economic benefit ...

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Номер записи: 3
23-07-2014 дата публикации

High-speed rail traction network power supply system earth induction current monitoring method and device

Номер: CN103941071A
Автор: LIU LIANGUANG, WANG KAIRANG, CHEN YANWEI
Принадлежит:

A high-speed rail traction network power supply system earth induction current monitoring method and a device. The device is installed at the connection neutral point position on the secondary side of a traction transformer and comprises a signal acquisition unit, a signal processing unit, a control unit, a data analysis unit, a data storage unit and a storage server, wherein signal acquisition unit perform signal acquisition through two ways, one way comprises a low-pass filter at 1Hz cut-off frequency, a band rejection filter and a magnetic flux gate current sensor, the other way comprises a voltage transformer and a current transformer, and the control unit transmits a signal acquisition result and an analysis result to the storage server for analysis and inquiry and can gives an alarm through an alarm unit. The problem of difficult installation of the monitoring position due to the fact that a neutral point on the high-voltage side of the transformer of a high-speed rail traction network ...

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Номер записи: 4
18-06-2014 дата публикации

Acoustic surface wave pressure sensing label for underground pipes

Номер: CN103870872A
Автор: CHEN TAO, WANG KAIRANG, YANG FAN, XU ZHENGSHAN, WANG XU
Принадлежит:

The invention discloses an acoustic surface wave pressure sensing label for underground pipes. The sensing label comprises a label chip, a label antenna and a label outer shell arranged outside the label chip. The label chip comprises a piezoelectric substrate, an interdigital transducer deposited on the piezoelectric substrate and reflecting gratings. The piezoelectric substrate is formed by piezoelectric single crystals. The interdigital transducer is a double-way interdigital transducer. The acoustic surface wave pressure sensing label for the underground pipes has the advantages of being free of sources and lines, long in identification distance, high in antijamming capability and suitable for severe environments.

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Номер записи: 5