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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.
08-08-2023 дата публикации

Fault positioning method based on improved VMD and Teager energy operators

Номер: CN116559579A
Автор: SHI KEJIAN, DAI ZIKUO, ZHU YIDONG, ZHANG XINYU, TIAN YE, HU DAWEI, CHEN QIANG, DU WEI, WANG ZHIBO, LI HAIFENG, GU TAIYU, HU XIAOXIAO, LIU HENGYU, WANG SHANSHAN, ZHANG ZHE
Принадлежит:

The invention belongs to the technical field of power distribution network positioning, and particularly relates to a fault positioning method based on an improved VMD and Teager energy operator, in particular to a distribution network fault positioning method based on the improved VMD and Teager energy operator. Comprising the following steps: 1, decomposing fault traveling waves by using a VMD algorithm; 2, a VMD algorithm is improved, two key parameters of the VMD are optimized through an SSA algorithm, and the minimum envelope entropy serves as a fitness value; and step 3, carrying out fault positioning based on the combination of an improved VMD algorithm and a Teager energy operator. According to the method, noise influence is eliminated while all characteristics of original traveling waves are contained, the wave head position recognition precision is enhanced, discrete signals and nonlinear signals are effectively decomposed, noise interference is avoided, the VMD decomposition ...

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Номер записи: 1
25-04-2023 дата публикации

High-performance control method for bipolar energy storage converter

Номер: CN116014778A
Автор: SUN JIAZHENG, HU DAWEI, LIU HENGYU, ZHU YIDONG, ZHANG XINYU, GU TAIYU, JIA QI, ZHAO HONGYAN, WANG XUEYING, YANG LUYU, ZHANG ZHI, ZHANG ZHE, WANG SHANSHAN, LI HAIFENG, HU XIAOXIAO
Принадлежит:

The invention belongs to the technical field of energy storage converter control optimization algorithms, and particularly relates to a high-performance control method for a bipolar energy storage converter. The system comprises a bipolar energy storage converter, and the bipolar energy storage converter comprises an energy storage battery unit, a three-phase dual-active full-bridge DC/DC converter, a DC voltage stabilization capacitor C and a grid-connected converter. The energy storage battery unit is connected to an intermediate DC voltage stabilization capacitor C of the grid-connected converter through the three-phase dual-active full-bridge DC/DC converter, and the grid-connected converter is directly connected to an AC power grid. According to the invention, the capacity selection and access of the energy storage battery are more flexible, and the service life of the system is further prolonged through a high-performance control method.

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Номер записи: 2
02-05-2023 дата публикации

Power distribution network station house intelligent sensing method based on Internet of Things

Номер: CN116054399A
Автор: LIU YUNSONG, SHI KEJIAN, DAI ZIKUO, WANG YANG, TIAN YE, LI HAIFENG, CHEN QIANG, LI BIN, DU WEI, GU TAIYU, WANG ZHIBO, HU XIAOXIAO, ZHANG TIANYU
Принадлежит:

The invention belongs to the technical field of intelligent control of the Internet of Things, and particularly relates to an intelligent sensing method for a power distribution network station house based on the Internet of Things. Comprising the following steps: installing an Internet of Things monitoring system in a power distribution network station room to carry out subentry control; environment safety of the station building and various temperature and humidity indexes in the station building are detected; the temperature in the station building is detected, and if it is detected that the temperature is too high, cooling treatment is conducted; when the temperature in the station building after the cooling treatment is still continuously increased and the current temperature is not enough to cause a fire, giving an alarm, and recording a fault reason and a solution after the fault is removed; and when the temperature in the station building is still continuously increased after cooling ...

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Номер записи: 3
23-06-2023 дата публикации

Method and system for processing telemetry information of available equipment for dispatching using and collecting data

Номер: CN116317108A
Автор: WANG ZHIBO, TIAN YE, WANG SHUNJIANG, SHI KEJIAN, ZHU YIDONG, ZHANG XINYU, LI HAIFENG, GU TAIYU, DU WEI, WANG SHANSHAN, HU XIAOXIAO, CHEN XIAODONG, LI BIN, FAN WEI, WANG RONGMAO, YU PENG, WANG DUO, SUI BING
Принадлежит:

The method comprises the following steps: in a provincial dispatching third area, generating a use and acquisition data packet for use and acquisition data based on an E file, and distributing the use and acquisition data packet to each regional dispatching third area; wherein the acquisition data packets are in one-to-one correspondence with the city catalogues; transmitting the acquired data packet to a distribution network third area from a local dispatching third area, and transmitting a distribution network graph model, transaction management and a power-cut plan to a provincial dispatching third area after transmitting the distribution network graph model, transaction management and power-cut plan to the local dispatching third area from the distribution network third area; transformer substation information in a local dispatching jurisdiction range is sent to a distribution network dispatching technical support system of a distribution network dispatching area I from a regional intelligent ...

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Номер записи: 4
06-06-1997 дата публикации

SYNCHRONIZING CABLE COUPLING APPARATUS FOR FLYBACK TRANSFORMER

Номер: JP0009148161A
Автор: KIN MEIKAN, GU TAIYU
Принадлежит:

PROBLEM TO BE SOLVED: To simply and easily mount a synchronizing cable by providing synchronizing terminal pieces formed so as to couple terminal pins with a printed circuit board after passing the pins through the insert holes of terminal piece receiving means to insert then in terminal piece inserting grooves and support bracket supported and fixed by the terminal pins inserted in the inserting holes. SOLUTION: Terminal piece inserting grooves 74 to insert synchronizing terminal pieces 80 are formed round the outside of a core insert opening 73. Terminal piece receiving means 70 has a frame 72. Support brackets 90 are erected below both sides of the front of the frame 72 and terminal pin insert holes 75a and 75b are bored into lower parts of the brackets 90 and terminal pins 81a and 81b of the pieces 80 are passed through the holes to support and fix them. Both pins 81a and 81b are integratedly erected downwards, passed through the holes 75a and 75b of the means 70 and coupled on a printed ...

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Номер записи: 5
18-04-2023 дата публикации

Reactive compensation configuration method for high-proportion photovoltaic access power distribution network

Номер: CN115986853A
Автор: GU TAIYU, TIAN YE, ZHU YIDONG, SHI KEJIAN, DU WEI, WANG ZHIBO, LI HAIFENG, YANG LUYU, LIU QI, LIU HENGYU, SUN JIAZHENG
Принадлежит:

The invention belongs to the technical field of reactive compensation of a power distribution network, and particularly relates to a reactive compensation configuration method for a high-proportion photovoltaic access power distribution network. The method comprises the following steps: step 1, inputting a forward-backward sweep power flow algorithm into a module as a network structure basis for subsequent calculation; step 2, judging whether all nodes converge or not through a forward-backward sweep load flow calculation circulation calculation module; and step 3, outputting the module through a forward-backward sweep power flow algorithm until all nodes meet a preset convergence condition. The method is high in pertinence, high in calculation speed and high in engineering feasibility, the investment precision and the reactive management level of reactive compensation equipment of a power supply company can be effectively improved, the voltage fluctuation problem can be effectively solved ...

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Номер записи: 6
18-04-2023 дата публикации

Power distribution network single-phase earth fault discrimination method and device based on particle swarm optimization

Номер: CN115980513A
Автор: ZHANG XINYU, WANG YANG, GU TAIYU, LI HAIFENG, WANG ZHIBO, TIAN YE, WANG SHANSHAN, SHI KEJIAN, HU DAWEI, DU WEI, LIU ZENGHAO, ZHANG WENYUAN, BI JUNJIE
Принадлежит:

The invention relates to a particle swarm optimization-based power distribution network single-phase earth fault discrimination method and device, and the method comprises the steps: analyzing the distribution characteristics of negative-sequence and zero-sequence currents in a power distribution network system, and building a function relation between zero-sequence and negative-sequence steady-state currents on a fault path of the power distribution network system and a fault distance through combining with line parameters; and taking the function relationship as a target function, and iteratively obtaining an accurate fault distance according to a particle swarm algorithm. According to the invention, fault discrimination and distance measurement are completed by using the negative-sequence and zero-sequence steady-state current, so that the influence of noise and the like on transient signals is avoided, auxiliary judgment of voltage signals is not needed, and the algorithm reliability ...

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Номер записи: 7
28-07-2023 дата публикации

Average power supply reliability spatial decomposition method and system for medium-voltage power distribution network area

Номер: CN116503204A
Автор: LI HONGJUN, FENG MINGCAN, TIAN YE, LI JINGRU, JIN QIANG, SHANG LEI, FANG HUALIANG, GU TAIYU, XUE ZHENYU, YANG LULU, ZHENG YUGUANG, WAN ZHIWEI
Принадлежит:

The invention belongs to the technical field of power distribution network power supply decomposition, and relates to an average power supply reliability spatial decomposition method and system for a medium-voltage power distribution network region, and the method comprises the steps: collecting the power supply distribution transformer capacities and average power selling prices of all types of users in the region; calculating power supply capacity value coefficients of the classified users according to the power supply distribution transformer capacities and the average electricity selling prices of the various users; calculating classified user power supply value capacity; according to the first-class and second-class load power supply guarantee coefficients and the first-class and second-class user power supply distribution transformer capacities, the guarantee power supply capacities of various first-class and second-class users are calculated; calculating the power supply reliability ...

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Номер записи: 8
18-04-2023 дата публикации

10kV wind power system load frequency control method and device considering disturbance

Номер: CN115986771A
Автор: LI HAIFENG, TIAN YE, SHI KEJIAN, ZHU YIDONG, ZHANG XINYU, DU WEI, WANG ZHIBO, GU TAIYU, LIU HENGYU, SUN JIAZHENG
Принадлежит:

The invention belongs to the technical field of power distribution of an electric power system, and particularly relates to a 10 kV wind power system load frequency control method and device considering disturbance. Mathematical modeling is carried out on the fan system in the ith area; when the system is disturbed, describing the model of the time domain of the wind power system in the first region; the established nonlinear relation model is converted into a dynamic linearization model through the pseudo partial derivative technology, and a dynamic linearization data model of the wind power system in the ith area is obtained; according to the equivalent dynamic linearization data model, based on a distributed model-free adaptive iterative algorithm, designing a sum adaptive rate and an estimation rate of an unknown disturbance difference for the wind power system in the ith area; designing a distributed adaptive load frequency controller with disturbance compensation; and the distributed ...

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Номер записи: 9