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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 9. Отображено 9.
28-07-2023 дата публикации

Voltage stability analysis method and system based on multi-pendulum characteristics of voltage disturbed curve

Номер: CN116505526A
Автор: WEI YAWEI, LYU YING, LU GUANGMING, YU ZHIHONG, DAI HONGYANG, ZHANG LULU, WANG ZIGAN, SHI CHEN, WANG JIECONG, WANG BING, XIE MEI, LI YALOU, TIAN FANG, JIA HAIBO, MA JING, LU JUN, MIAO CHUNSHUAI, CAI SHUNYOU, SONG YUANMING
Принадлежит:

The invention discloses a voltage stability analysis method and system based on the multi-pendulum characteristic of a voltage disturbed curve, and the method comprises the steps: a main server obtains a voltage disturbed curve of at least one node, and carries out the analysis of each voltage disturbed curve based on the multi-pendulum characteristic, the analysis time and the curve wavelet packet decomposition processing layer number corresponding to each voltage disturbed curve are determined; the main server establishes an analysis task corresponding to each node and issues the analysis task to at least one sub-server; for any sub-server, carrying out wavelet packet analysis on the voltage disturbed curve based on the analysis time and the number of layers of wavelet packet decomposition processing of the curve so as to obtain a wavelet decomposition coefficient of each layer corresponding to the voltage disturbed curve; for any sub-server, determining a characteristic value of each ...

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Номер записи: 1
12-05-2023 дата публикации

Rectangular adapter, plug matched with adapter and connector

Номер: CN116111404A
Автор: HU JUNHAO, LIU XIANGYANG, TIAN XU, WANG HENG, YANG GUOHUI, XU WEI, WEI YAWEI, XU FENGREN, XI BINGHAN, YAN FENGXIAN, QI WENCHUANG, WU XUESHUN, LI WEIKE
Принадлежит:

A rectangular adapter comprises a rectangular outer shell, the outer shell is provided with a rectangular inner hole, an insertion core module, a terminal and a shielding sheet are installed in the rectangular inner hole, the shielding sheet is installed between the insertion core module and the inner wall of the outer shell, and the outer shell is further provided with a locking component matched with an adaptive plug. And the locking part and the shielding sheet are arranged on different side walls of the outer shell. Through the above optimization, the internal structure of the adapter is simplified, and other materials except the terminals and the shielding member are non-metallic materials, thereby simplifying the technology and reducing the processing time. The rectangular adapter further comprises a plug matched with the rectangular adapter, by optimizing the structure and the shape of the adapter, the structure of a matching section on the plug is indirectly simplified, meanwhile ...

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Номер записи: 2
20-06-2023 дата публикации

Method and system for evaluating frequency supporting capability of synchronous power grid

Номер: CN116266305A
Автор: LIU QIYONG, YU ZHIHONG, ZHANG LULU, LYU YING, YAN JIANFENG, XU XINGWEI, LU GUANGMING, WEI YAWEI, WANG BING, CHI CHENG, DAI HONGYANG, SHI CHEN, WANG JIECONG, WANG ZIGAN, LU JUN, JIA HAIBO, MA JING, LI KUN, GAO QIANG, XIE MEI, SHI DONGYU, JIA YUPEI, LI YALOU, TIAN FANG
Принадлежит:

The invention discloses a method and system for evaluating the frequency supporting capacity of a synchronous power grid, and belongs to the technical field of online safety and stability analysis of a power system. The method comprises the steps of determining rotational inertia Jsys0 of the synchronous power grid in a typical operation mode or a periodic online operation mode of the synchronous power grid, and determining bearable maximum disturbance power delta Pmax0 in the typical operation mode or the periodic online operation mode of the synchronous power grid based on constraint conditions of the synchronous power grid, determining a critical inertia ratio IRmin0 under a typical operation mode or a periodic online operation mode of the synchronous power grid according to the Jsys0 and the delta Pmax0; monitoring the synchronous power grid on line to obtain the real-time rotational inertia Jsys of the synchronous power grid; and determining the maximum disturbance power delta Pmax ...

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Номер записи: 3
18-04-2023 дата публикации

Incorrect action risk assessment system and method

Номер: CN115983617A
Автор: YANG GUOSHENG, ZHANG LIE, GUO PENG, LI ZHONGQING, SUN HUADONG, LU GUANGMING, WEI YAWEI, ZHANG ZHONGHAO, ZHANG HANFANG, JIANG YANHONG, YAO TAO, LI KUAN, KANG YIQUN, LI YANFEI, WANG LIMIN, YAN ZHOUTIAN, SHEN HUA, WU CHUNLIANG, YE XIN, HU HAIYAN
Принадлежит:

The invention discloses an incorrect action risk assessment system and method, and the system comprises a device layer which is used for setting at least two top layer events for protecting incorrect actions; the device function layer comprises device function events corresponding to different protection incorrect actions and is used for determining an association relationship between the device function events and protection element incorrect action events of the protection element layer; a protection element layer including protection element incorrect action events belonging to different protection incorrect actions; the risk source quantitative evaluation layer comprises a risk source event which affects the incorrect action of the protection element; the power grid fault layer comprises a power grid fault event which affects an incorrect action event of a protection element; and establishing a minimum complete event group, and calculating the top event probability based on the minimum ...

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Номер записи: 4
04-04-2023 дата публикации

Cable adapter and cable assembly

Номер: CN115911993A
Автор: WEI YAWEI, TIAN XU, LIU XIANGYANG, ZHANG ZHIZHONG, HU JUNHAO, XU FENGREN, WANG HENG, XU WEI, XI BINGHAN, DU SHUAISHUAI, LI WEIKE, HAN YUNZHAO, WU XUESHUN, XU GENG
Принадлежит:

The invention relates to a cable adapter and a cable assembly. The cable assembly comprises a cable I and at least two cables II which are connected through the cable adapter, and the other end of the cable I is connected with a connector I used for being connected with a power end connector; the other end of each cable II is connected with a connector II used for being connected with an equipment end connector. According to the cable assembly, switching from one path of signals to multiple paths of signals can be achieved, the performance of the cable assembly can be guaranteed, meanwhile, the cost of power transmission materials is reduced, the installation efficiency is improved, occupation of the cable assembly to the overall space of a base station is reduced, and the high-integration-level requirement of communication equipment is met.

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Номер записи: 5
04-04-2023 дата публикации

Wind power plant clustering system and method based on Pearson correlation coefficient

Номер: CN115912514A
Автор: GU YUJIA, LU GUANGMING, LI HONGQIANG, WANG JIECONG, ZHANG HANHUA, ZHANG LULU, XUE FEI, SHI CHEN, ZHOU LEI, YAN JIANFENG, MA XIN, GAO QIANG, YANG HUIBIAO, MA JING, MIAO CHUNSHUAI, LYU YING, SHI DONGYU, WANG BING, LU JUN, DAI HONGYANG, WEI YAWEI, SONG YUANMING, LI WEI, JIA HAIBO, YU ZHIHONG, WANG ZIGAN, XIE MEI, JIA YUPEI
Принадлежит:

A wind power plant clustering system based on a Pearson correlation coefficient comprises a historical power generation data acquisition module, a wind power plant active output time sequence vector construction module, a Pearson correlation coefficient calculation module, a wind power plant clustering module and a clustering analysis module. The clustering analysis module performs clustering analysis according to the data provided by the above modules and outputs the total division number M of the wind power plant groups, the wind power plants contained in each group and the number K of the wind power plants, and the coincidence rate s result of each wind power plant group, so that the number of groups does not need to be preset; however, the wind power plants are automatically clustered into a certain number of wind power plant groups according to the historical output data of the wind power plants, so that the aggregation result can better conform to the actual situation. The invention ...

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Номер записи: 6
13-06-2023 дата публикации

New energy power generation optimization control method and system based on online short circuit ratio

Номер: CN116260178A
Автор: LUO YAZHOU, DAI HONGYANG, CHEN XIAO, LYU YING, LI LEI, WEI YAWEI, HUAN JIAFEI, ZHANG LULU, GAO PENGFEI, SHI CHEN, ZHANG LEI, SHI DONGYU, LIU YIMIN, WANG BING, GUO JUN, WANG JIECONG, ZENG BING, XIE MEI, ZHAO FENG, LU GUANGMING, LIU YU, YU ZHIHONG, LIU JIAN, JIA YUPEI
Принадлежит:

The invention discloses a new energy power generation optimization control method and system based on an on-line short-circuit ratio, and belongs to the technical field of on-line safety and stability calculation and analysis of a power system. The method comprises the steps of obtaining ultra-short-term wind power prediction data of a wind power plant and real-time operation data of a power grid, and performing new energy multi-station short-circuit ratio checking; if the verification is not passed, determining a power control weight coefficient of the wind power plant based on the data, and adjusting and reducing the generation power of the wind power plant according to a preset adjustment power step length; and performing short-circuit ratio check again, if the check result passes, executing the reduced generation power adjustment control measure on the new energy wind power plant, and if the check result does not pass, increasing the power adjustment amount according to a preset adjustment ...

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Номер записи: 7
03-12-2014 дата публикации

Winding device of voltage transformer

Номер: CN104183384A
Автор: WEI YAWEI, JIANG SHENGWANG
Принадлежит:

The invention relates to a winding device of a voltage transformer. The winding device comprises a pair of rotating parts arranged on two sides of a shielding barrel, each rotating part comprises a gear ring and a ring with a sleeve, the sleeves are arranged on the inner sides of the rings and extend axially, the gear rings are arranged on the other side of the rings, each gear ring is composed of two non-equant arc-shaped gear ring members, each ring is composed of two non-equant arc-shaped ring members, each arc-shaped gear ring member is fixed on the corresponding arc-shaped ring member, and one end of each arc-shaped gear ring member is detachably and fixedly connected with the other arc-shaped ring member. The winding device of the voltage transformer is firm in connection and high in stability and has the advantages that the gear rings and the rings both composed of non-equant arc-shaped members are easier in alignment during assembly, assembly accuracy is improved, and the gear rings ...

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Номер записи: 8
07-04-2023 дата публикации

Intelligent generation method and device for structured text of power grid fault handling plan

Номер: CN115935911A
Автор: SHI CHEN, DONG XIANGMING, CHEN ZHONGZHONG, WANG YANG, ZHANG JIN, XIE MEI, YU ZHIHONG, LYU YING, LU GUANGMING, DAI HONGYANG, WEI YAWEI, WANG BING, ZHANG LULU, WANG JIECONG, WANG FENG
Принадлежит:

The invention discloses an intelligent generation method and device for a structured text of a power grid fault handling plan. The intelligent generation method comprises the steps of performing word segmentation on the text of the power grid fault handling plan; obtaining training data comprising common words and keywords; training and testing a pre-constructed LSTM (Long Short Term Memory) model used for extracting keywords by using the training data; the LSTM model used for extracting the keyword receives a text of a to-be-processed power grid fault handling plan, and outputs a keyword of the power grid fault handling plan corresponding to the text; and generating the keyword into a structured text which can be identified by the checked application program according to a preset format. The problems that in the prior art, power grid fault handling work efficiency is low, and intelligent fault handling capacity is weak in a complex scene are solved.

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Номер записи: 9