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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 12. Отображено 12.
10-05-1995 дата публикации

Method and device for current and frequency conversions

Номер: CN0001102519A
Автор: DONGKUI WANG, DENGFENG WANG, DENGZHENG WANG, WANG DONGKUI, WANG DENGFENG, WANG DENGZHENG
Принадлежит:

By use of commutator's brush, commutator, n collecting rings and their brushes, prime mover, primary and secondary windings, DC is converted into square wave DC, pulse DC, and Ac, m controllable switch elements respectively control the width of square wave from collecting ring's brush to primary windings. It is suitable to convert DC into frequency-variable rotating magnetic field, so adapting frequency-change speed regulation, speed-change motor, linear motor and chopping speed regulation.

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Номер записи: 1
28-02-1996 дата публикации

Pulse generator

Номер: CN0001117668A
Автор: DONGKUI WANG, DENGZHENG WANG, WANG DONGKUI, WANG DENGZHENG
Принадлежит:

The pulse generator is mainly comprised of prime mover, commutator brush, commutator, collector ring, collector ring brush and pulse transformer or pulse load. Its output pulses have higher accuracy and further have functions of a pulse distributor. And it is suitable for use in pulse trigger controller having feedback signal element and controllable silicon elements in automatic control system.

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Номер записи: 2
04-08-2023 дата публикации

Power grid power supply structure optimization method, system, equipment and medium

Номер: CN116542427A
Автор: LI BINGHUI, DAI ZHIQIANG, ZHAO XIAOXIAO, XU YUNUO, WANG DENGZHENG, WANG ZIQIAN, LIU ZHAOYAN, LYU YANG, GAO LU, ZHENG ZIXUN
Принадлежит:

The invention belongs to the technical field of carbon asset management, and particularly discloses a power grid power supply structure optimization method, system, equipment and medium, the power grid power supply structure optimization method comprises the steps of calculating power grid monthly carbon asset benefits through regional monthly positive power carbon assets and regional monthly negative power carbon assets, adjusting a power grid power supply structure according to the regional power grid monthly carbon asset benefits, and optimizing the power grid power supply structure according to the power grid monthly carbon asset benefits. According to the method, the emission reduction effect brought by the optimized power supply structure is analyzed, and the problem that the emission reduction effect brought by power grid structure optimization cannot be specifically analyzed without starting from the angle of carbon asset benefits in the current power supply structure adjustment ...

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Номер записи: 3
08-08-2023 дата публикации

Method, device and equipment for calculating photovoltaic capacity of distribution transformer district and medium

Номер: CN116561485A
Автор: XU YUNUO, LI BINGHUI, WANG HAITAO, MIAO BAOCHUN, DAI ZHIQIANG, CHEN BINFA, WANG DENGZHENG, LI QIANG, LYU YANG, WANG PEISHENG, XU FEI, LIU ZHI
Принадлежит:

The invention discloses a distribution transformer district photovoltaic capacity calculation method and device, equipment and a medium. The method comprises the following steps: acquiring regional distributed photovoltaic installed capacity, annual power generation output curve data, distribution transformer rated capacity and annual electrical load curve data; carrying out per-unit processing on the annual power generation output curve data; performing data screening and reduction on the per-unit photovoltaic output curve data and the annual electrical load curve data, and performing superposition to obtain a superposition curve; calculating a minimum value according to the superposition curve, and obtaining a moment corresponding to the minimum value of the superposition curve; acquiring an electrical load value of the distribution transformer; calculating the low-voltage total consumption photovoltaic openable capacity of the distribution transformer; and calculating the distribution ...

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Номер записи: 4
04-08-2023 дата публикации

Document classification method based on model integration and data expansion

Номер: CN116541527A
Автор: WANG HAITAO, DAI ZHIQIANG, LI BINGHUI, LIU HUILONG, XU YUNUO, CHEN BINFA, LI HUI, WANG DENGZHENG, GUO DAYONG, LIN KAI, YAN XIAODONG, FEI CHANGSHUN
Принадлежит:

The invention belongs to the field of intelligent document classification, and particularly relates to an official document classification method based on model integration and data expansion. Comprising the following steps: acquiring a plurality of department files and correspondingly labeling department names as labels; data set analysis, dirty data processing, sample statistics and determination of small samples and large-batch samples; creating a department associated hot word list, expanding small samples and deleting large-batch samples; the method comprises the following steps: respectively modeling by utilizing BiLstm, ALbert and XLNet; and intelligent document classification is realized through logical judgment. A department high-frequency word list is established through data analysis, text features are screened through high-frequency words, and rapid data set expansion and sample balance are achieved. According to the method, the problems of long text and time consumption in ...

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Номер записи: 5
01-08-2023 дата публикации

Coal-fired unit real-time carbon emission accounting method, device, equipment and medium

Номер: CN116522044A
Автор: DAI ZHIQIANG, LI BINGHUI, ZHAO XIAOXIAO, XU YUNUO, GAO LIANJIE, WANG ZIQIAN, WANG DENGZHENG, LIU ZHAOYAN, LI QIANG, GAO LU, ZHENG ZIXUN
Принадлежит:

The invention belongs to the technical field of carbon emission, and particularly discloses a coal-fired unit real-time carbon emission accounting method, device and equipment and a medium. Comprising the following steps: acquiring unit efficiency, unit coal consumption and unit carbon emission of different coal-fired units under rated power, and calculating an instantaneous electric power carbon emission conversion coefficient of a first coal-fired unit according to the unit coal consumption and the unit carbon emission; unit output and rated power of the coal-fired unit are obtained, and a correction coefficient is calculated according to the unit output and the rated power of the coal-fired unit; calculating an instantaneous power carbon emission conversion coefficient of the coal-fired unit according to the correction coefficient and the first instantaneous power carbon emission conversion coefficient of the coal-fired unit; and outputting the instantaneous power carbon emission conversion ...

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Номер записи: 6
01-08-2023 дата публикации

Electric power facility land occupation traffic capacity calculation method, device, equipment and medium

Номер: CN116522045A
Автор: WANG HAITAO, LI BINGHUI, CHEN BINFA, HOU BINGXU, DAI ZHIQIANG, XU YUNUO, WANG DENGZHENG, LIU ZHAOYAN, GAO LU, ZHENG ZIXUN
Принадлежит:

The invention belongs to the technical field of electric power facility construction, and discloses an electric power facility occupied area trafficability calculation method, device, equipment and medium, according to electric power facility occupied area coordinates in electric power facility planning, two diagonal limit coordinates in the electric power facility occupied area coordinates are selected, and an electric power facility closed space coordinate system is generated according to a rectangular coordinate principle; an electric power facility closed space coordinate system is divided into equal-area space grids, an electric power facility occupied area trafficability index in the whole electric power facility planning is obtained based on a construction difficulty coefficient of a gridding division shape and a space grid occupancy coefficient, and the calculation coverage is large. The space grid occupancy coefficient is used for converting information of multi-specification-in-one ...

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Номер записи: 7
02-08-1995 дата публикации

Method and device of current and frequency conversion

Номер: CN0001106174A
Автор: DONGKUI WANG, DENGFENG WANG, DENGZHENG WANG, WANG DONGKUI, WANG DENGFENG, WANG DENGZHENG
Принадлежит:

N controllable switch elements and their trigger units, on-off system and m groups of primary and secondary windings of inductive load or inherent magnetic field are used to convert DC power supply into square or pulse DC power supply or AC power supply. By changing the design, distribution and connection of said units, DC power supply may be converted into frequency-changing rotary magnetic field. The device has the features of inverse transformer, DC chopper and electric tractor and is suitable for frequency-speed changing motor, linear motor and chopping speed regulation.

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Номер записи: 8
28-02-1996 дата публикации

inversion and frequency conversion method and device

Номер: CN0001117663A
Автор: DONGKUI WANG, DENGZHENG WANG, WANG DONGKUI, WANG DENGZHENG
Принадлежит:

In the method we use a number of control switching elements and their trigger or control devices and circuit breaking system, and also multiple sets of primary windings and corresponding secondary windings or corresponding rotor electromagnetic parts to make DC have variable current and variable frequency or to convert DC into alternately variable rotary electromagnetic field. By changing the design of inductive load, it can be used in design of inverter, frequency variable speed changer, commutatorless speed variable motor, polyphase multiple DC chopper, stepping motor and their driving power source and intermediate frequency power source.

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Номер записи: 9
01-08-2023 дата публикации

Method and system for extracting and classifying key point review content of feasibility research document

Номер: CN116522233A
Автор: LI BINGHUI, LI HUI, XU YUNUO, LIU HUILONG, DAI ZHIQIANG, WANG DENGZHENG, LIU ZHAOYAN, LI QIANG, LYU YANG, YAN XIAODONG, FEI CHANGSHUN
Принадлежит:

The invention discloses a feasibility research document key point review content extraction and classification method and system, and belongs to the technical field of document content classification, a feasibility research document key point review content extraction and classification model is established and trained according to a feasibility research document data set, and a predefined label type is preset in the feasibility research document key point review content extraction and classification model; the content of the pre-reviewed document is transmitted into a feasibility research document key point review content extraction and classification model in a readable parameter form of the feasibility research document key point review content extraction and classification model for prediction and identification, and the feasibility research document key point review content extraction and classification model performs classification and identification according to predefined label ...

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Номер записи: 10
28-02-1996 дата публикации

inversion and frequency conversion method and device

Номер: CN0001117664A
Автор: DONGKUI WANG, DENGZHENG WANG, WANG DONGKUI, WANG DENGZHENG
Принадлежит:

In the method we use prime mover, commutator brush, commutator, n sets of collector rings, n sets of collector ring brushes, i phase changing circuits, y sets of primary windings and corresponding secondary coils or corresponding rotor electromagnetic parts to convert DC into current and frequency variable one or rotary alternately variable rotary electromagnetic field or translating electromagnetic field. It can be used in design of inverter, frequency variable speed changer, speed variable motor, DC chopper, stepping motor and their driving power source and intermediate frequency power source.

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Номер записи: 11
25-08-2023 дата публикации

Self-adaptive current differential protection method and system, storage medium and equipment

Номер: CN116646902A
Автор: YUAN ZHAOXIANG, LOU QIHE, HE JINGHAN, HAN LIU, XIAO ZHIHONG, LI MENG, WANG ZIQI, FENG TENG, WANG DENGZHENG, LIU WENXUAN, NI PINGHAO, CAO HAO, ZHANG DAHAI, YU TONGWEI, WANG YONG, HAN ZHENTAO, WANG HUI, WU XUANWEI
Принадлежит:

The invention relates to a self-adaptive current differential protection method and system, a storage medium and equipment, and the method comprises the steps: obtaining the phase angle and amplitude of current at two sides of a protected line according to current signals at two sides of the protected line, which are collected in real time, and carrying out the fault detection; when a fault is detected, a braking coefficient is calculated according to the phase angle and amplitude information of the currents on the two sides of the protected line; and pre-judging a fault occurrence area according to the braking coefficient and the phase angle and amplitude information of the current on the two sides of the protected line, and adjusting a braking system according to the fault occurrence area to realize self-adaptive current differential protection. According to the method, the braking coefficient can be calculated by collecting the current amplitudes and the phase angles at the two ends ...

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Номер записи: 12