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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 14. Отображено 14.
04-04-2023 дата публикации

Rime removing device for high-voltage transmission line

Номер: CN115912230A
Автор: ZHUANG WENBING, YANG YANG, WANG HONGXIA, LI XIAOGUANG, ZHANG BO, ZHAO PUZHI, LI MENG, ZHAO MINGGUAN, MA SHUYANG, AN JINPENG, MA CHAO
Принадлежит:

The invention discloses a rime removing device for a high-voltage power transmission line, and relates to the technical field of disaster prevention and reduction of a power system, the rime removing device comprises an impeller, the impeller comprises fan blades, a hub and teeth, the fan blades are arranged on the outer side of the hub and connected with the hub, the inner side of the hub is provided with a center hole for a wire to penetrate through, and the teeth are arranged on the side edge of the center hole. The rime removing device solves the problem of removing rime accumulated on a wire and a ground wire of a high-voltage transmission line in a cold region, the impeller driven by wind power is installed on the wire or the ground wire, when the impeller spirally advances with the wire as the axis and driven by the wind power, teeth of the impeller can scrape off the rime accumulated on the wire or the ground wire, and therefore the rime removing effect is achieved. Fault tripping ...

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Номер записи: 1
01-08-2023 дата публикации

Power transmission line windage yaw flashover early warning method based on numerical weather forecast

Номер: CN116522578A
Автор: ZHAO MINGGUAN, YANG YANG, LI MENG, ZHAO PUZHI, DONG XINSHENG, ZHANG XIAOGANG, WANG HONGXIA, ZHUANG WENBING, LI XIAOGUANG, LIU LEI, MA SHUYANG, JIANG XINGLIANG, ZHANG ZHIJING, HU JIANLIN, DENG HONGFEI
Принадлежит:

The invention discloses a numerical weather forecast-based power transmission line windage yaw flashover early warning method, which comprises the following steps of: 1, inputting power transmission line design parameters and power transmission line regional weather forecast data, and carrying out fluctuating wind speed time history Sv calculation by adopting a Daviport spectrum; 2, inputting the fluctuating wind speed time history Sv of each point in the space on the conductor and the included angle theta between the wind direction and the power transmission line in MATLAB, calculating the wind load of the conductor, and solving the maximum wind drift angle phi of the power transmission line by adopting a rigid body straight rod method; 3, substituting the maximum wind deflection angle phi of the power transmission line into the structural size data of a specific tower, establishing a geometrical relationship between the tower and a to-be-solved gap as well as between the lead and the ...

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Номер записи: 2
23-06-2023 дата публикации

Electromagnetic voltage transformer neutral point inrush current suppression method

Номер: CN116316495A
Автор: HE LONG, MA JINCAI, ZHAO PUZHI, TAN DONG, ZHU YONGMING, DU LONGJI, ZHANG FEIFEI, LI YONG, ZHENG YI, ZHAO WENCHANG, LI JIETANG, LIU JUN, LU CONG, XI TAO, WANG LIANG, LIU YONG, WU WEILI, YANG YUNLONG
Принадлежит:

The invention discloses a neutral point inrush current suppression method for an electromagnetic voltage transformer, and belongs to the technical field of excitation inrush current limiting methods. The method comprises the following steps: S1, dividing an electromagnetic voltage transformer based on a YNy0 connection method into a neutral point ungrounded system and a neutral point grounded system; s2, aiming at a neutral point ungrounded system, analyzing a three-phase simultaneous closing strategy and a voltage transformer neutral point excitation surge current condition under a strategy of closing two phases first and then closing a third phase; s3, aiming at the neutral point grounding system, analyzing the excitation surge current condition of the neutral point of the voltage transformer under the sequential closing strategy; s4, summarizing and concluding the change rule of the closing magnetic flux by combining the analysis results in S2 and S3; s5, based on the rule obtained in ...

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Номер записи: 3
02-06-2023 дата публикации

Traction power supply system negative sequence treatment method considering new energy access

Номер: CN116207791A
Автор: LUO ZHONGYOU, CHEN MINWU, ZHAO PUZHI, LI DECUN, HOU BING, DUAN YU, ZHANG YUAN, QI XIAOXIAO, QIN YANHUI, HE LING, XIAO DIWEN, CHEN YINYU, WANG CONG
Принадлежит:

The invention discloses a traction power supply system negative sequence treatment method considering new energy access, and the method specifically comprises the steps: collecting the voltage and current of a common connection point, a new energy unit grid-connected inverter outlet, and a traction power supply system outlet, and calculating the unbalance degree of each electrical quantity through sequence component decomposition; establishing a power grid-traction power supply system-new energy unit voltage imbalance propagation model; calculating a compensation current reference value of the common connection point according to a voltage imbalance propagation model by taking a voltage imbalance national standard limit value as a constraint; and calculating negative sequence current instructions of the traction power supply system SVG and the grid-connected inverter by considering the residual capacity of the new energy. The residual capacity of the grid-connected inverter equipment of ...

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Номер записи: 4
25-04-2023 дата публикации

Electrical equipment discharge fault simulation device and method

Номер: CN116008745A
Автор: LI TONG, CHU HOUGUANG, QIN ZHIMIN, SHEN JIEXIN, ZHAO PUZHI, YANG DINGQIAN, XU GUANGHU, LIU LEI, ZHANG QINGCHUAN, GONG DUOHU
Принадлежит:

The invention discloses an electrical equipment discharge fault simulation device and method, and the device comprises a control box, the two ends of the surface of one side of the control box are provided with hinge seats, one side of each hinge seat is hinged with a supporting rod, one end of each supporting rod is provided with a simulation structure, one side of the control box is provided with a protection structure, and the protection structure is connected with the control box. The simulation structure comprises an insulating plate, an adjusting screw, a conducting rod and a simulation rod, the simulation rod is fixedly connected to one side of the conducting rod, the simulation structure is installed through the supporting rod hinged to the control box, the protection structure on the side face is combined, simulation conditions can be changed for comparative analysis, the fault finding accuracy is improved, meanwhile, protection operation is facilitated, and the fault finding efficiency ...

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Номер записи: 5
02-05-2023 дата публикации

Neutral point inrush current suppression device for electromagnetic voltage transformer

Номер: CN116054108A
Автор: HE LONG, WANG QINGBIN, ZHAO PUZHI, ZHU YONGMING, YANG ZHUSHI, LI ZHIYUAN, YUE JINGYI, CHU WENXIN, DONG XINSHENG, LIU JUN, LU CONG, XI TAO, WANG LIANG, LIU YONG, WU WEILI, YANG YUNLONG
Принадлежит:

The invention relates to the technical field of inrush current suppression devices, and discloses an electromagnetic voltage transformer neutral point inrush current suppression device which comprises a shell and a plurality of current-sensitive resistors, a fixing frame is fixedly connected to the interior of the shell, the plurality of current-sensitive resistors are uniformly fixed in the fixing frame, a rectangular rod is arranged at the upper end of the fixing frame, and the rectangular rod is fixedly connected with the shell. A connecting mechanism is installed on the rod wall of the rectangular rod and used for rapidly connecting any current-sensitive resistor into a circuit, openings are formed in the two opposite sides of the shell, and side plates are connected to the openings. According to the neutral point inrush current suppression device for the electromagnetic voltage transformer, when the current sensitive resistor in the inrush current suppression device is damaged, the ...

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Номер записи: 6
04-04-2023 дата публикации

Online monitoring device and method for partial discharge of intelligent high-voltage switch cabinet

Номер: CN115902545A
Автор: LI JINLIANG, LI XIAOGUANG, ZHAO PUZHI, HE DANDONG, WANG JIE, XU GUANGHU, ZHANG XIAOJUN, DONG XINSHENG, CHEN WENTAO, LIU GUOLIANG, YANG DINGQIAN, AI QINGTING, GUO WEIPING, XU LUQIANG, ZHENG ZILIANG
Принадлежит:

The invention relates to the technical field of switch cabinet monitoring, in particular to an intelligent high-voltage switch cabinet partial discharge on-line monitoring device and method, and the method comprises the steps that a front-end detection device collects pressure information between a live detection device and a to-be-detected switch cabinet, and the live detection device collects partial discharge information and self position information of the to-be-detected switch cabinet; and the detection analysis unit controls the vertical expansion piece and the horizontal expansion piece to act by using the pressure information and the position information of the live detection device, and detects and positions the partial discharge condition of the to-be-detected switch cabinet by using the partial discharge information and the position information of the to-be-detected switch cabinet. According to the invention, by adjusting the detection positions and detection periods of the ultrasonic ...

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Номер записи: 7
28-04-2023 дата публикации

Space trace gas detection positioning method and device based on narrow-band differential spectrometry

Номер: CN116026777A
Автор: CAI QIDONG, ZHANG KAI, ZHANG ZEQIANG, MAIMAITI NUR, DANG JIE, ZHAO PUZHI, FU HAO, HAN BIN, ZHANG XIAOGANG, YANG JINCHENG, WANG MING, ZHANG JIANZHONG, GAO FULAI, CHEN ZHONGXU, LIU HAOJUN
Принадлежит:

The invention discloses a space trace gas detection and positioning method based on narrow-band differential spectroscopy, and relates to the technical field of GIS equipment monitoring, and the method comprises the following steps: generating an infrared thermal radiation light source through the infrared thermal radiation light source; detecting and positioning the SF6 leakage condition of the GIS equipment to obtain detection and positioning information; and the detection positioning information is received, processed, displayed and uploaded to a far-end monitoring platform. The invention discloses a space trace gas detection positioning device based on narrow-band differential spectrometry. According to the invention, SF6 gas leakage of the gas insulation high-voltage equipment is detected and positioned, trace gas leakage is found before a pressure gauge, and the position of a leakage point is indicated; the level of an existing SF6 gas leakage monitoring technology is greatly improved ...

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Номер записи: 8
18-04-2023 дата публикации

110KV basin-type insulator with optical fiber temperature measurement function and preparation method of 110KV basin-type insulator

Номер: CN115985596A
Автор: HE LONG, LIU GANG, MA JINCAI, ZHENG YI, ZHAO PUZHI, ZHU YONGMING, LI MENGJIAO, DU LONGJI, ZHANG FEIFEI, MA ZHONG, ZHANG JINJUN, YANG ZHUSHI, ZHAO HONGBO, KANG LIJUN, ZHAI KAIXUAN
Принадлежит:

The invention relates to a basin-type insulator and a preparation method thereof, in particular to a 110KV basin-type insulator with an optical fiber temperature measurement function and a preparation method thereof, which are used for solving the problems that in the prior art, temperature monitoring is carried out by preassembling infrared temperature measurement equipment on a shell, so that on-site large-scale implementation is not suitable, and the cost is low. And the actual conductor temperature cannot be accurately measured in real time. According to the 110KV basin-type insulator with the optical fiber temperature measurement function, one metal conductor in the basin-type insulator is connected with the temperature measurement end of the temperature measurement optical fiber, so that the internal temperature of the basin-type insulator is monitored; the surface of the temperature measuring optical fiber is subjected to texturing treatment, so that the bonding area of the temperature ...

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Номер записи: 9
05-05-2023 дата публикации

Overhead transmission conductor deicing jump risk early warning method and system

Номер: CN116070490A
Автор: LI MENG, YANG YANG, ZHAO MINGGUAN, ZHANG XIAOGANG, ZHUANG WENBING, DONG XINSHENG, ZHAO PUZHI, WANG HONGXIA, LI XIAOGUANG, LIU LEI, MA SHUYANG, JIANG XINGLIANG, ZHANG ZHIJING, HU JIANLIN, DENG HONGFEI
Принадлежит:

The invention discloses an overhead transmission conductor deicing jump risk early warning method, and relates to the field of power grid disaster prevention and reduction, and the method comprises the steps: constructing a deicing numerical simulation model, and obtaining an ice jump height calculation formula; determining a static icing minimum gap between the wires during static icing of the wires; determining a dynamic deicing minimum gap of the wire; and performing line checking and early warning according to the dynamic amplification coefficient of the lead structure system. The invention also provides an overhead transmission conductor deicing jump risk early warning system. Whether the line passes the checking early warning is quickly judged according to whether the state of the wire is within the change range of the wire span and the icing thickness, and the early warning is performed if the checking is not passed.

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Номер записи: 10
14-07-2023 дата публикации

Configuration-based electric power test instrument measurement data acquisition system

Номер: CN116437246A
Автор: WANG YUWEI, ZHAO PUZHI, DONG WENJUAN, WANG XINGANG, DELINUER. AZAN, RENAGULI. WUFUER, FANG ZHI, LIU LIXU
Принадлежит:

The invention discloses a configuration-based electric power testing instrument measurement data acquisition system, and relates to the technical field of electric power testing. The system comprises an interface conversion module and a data protocol analysis module, the interface conversion module comprises a plurality of access modes and exit modes, the interface conversion module uniformly converts different interface protocols into TCP/IP protocols to interact with the data analysis module, and the data analysis module comprises a protocol analyzer and a configuration file. Structured conversion of collected data is achieved, and then unified collection of data of most instruments and meters is achieved. The interface conversion module and the data protocol analysis module are combined, the interface conversion module uniformly converts different interface protocols into TCP/IP protocols to interact with the data analysis module, and the data analysis module converts bit data into structured ...

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Номер записи: 11
23-06-2023 дата публикации

Template-based multi-rule threshold power equipment defect judgment method

Номер: CN116308297A
Автор: DONG WENJUAN, ZHAO PUZHI, CHEN WENTAO, WANG YUWEI, WANG XINGANG, RENAGULI. WUFUER, DELINUER. AZAN, FANG ZHI, LIU LIXU
Принадлежит:

The invention discloses a multi-rule threshold power equipment defect judgment method based on a template, and relates to the technical field of power systems. The method comprises a judgment template and a judgment algorithm, the judgment template comprises a judgment value, a judgment condition, a judgment sequence, a defect result and a judgment method, and the method comprises the following steps that after the judgment algorithm obtains data, the optimal defect judgment template is automatically matched according to fields in the data; the defect is judged according to the configuration logic of the defect template, and intelligent judgment of the defect through a threshold judgment class is achieved; based on the above steps, accurate determination of various electrical equipment defects is realized. According to the multi-rule threshold power equipment defect judgment method based on the template, the defect is judged according to the configuration logic of the defect template by ...

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Номер записи: 12
03-11-2022 дата публикации

SYSTEM FOR PERCEIVING OPERATING STATE OF LARGE POWER TRANSFORMER BASED ON VIBRO-ACOUSTIC INTEGRATION

Номер: US20220349957A1
Автор: Gao Ronggang, He Cheng, LIU Xianfu, Wang Kaike, Wang Xinxin, You Yi, Zhang Ling, Zhao Jianping, Zhao Puzhi
Принадлежит:

The present disclosure provides a system for perceiving an operating state of a large power transformer based on vibro-acoustic integration, including a perception layer, a network layer, and a diagnostic layer, where the perception layer is used for monitoring, in real time, a state parameter for a coupling vibration signal and an acoustic signal of each of a transformer core, a winding, a clamp and a housing, a state parameter of each of a vibration signal and an acoustic signal during a gear position change of an on-load tap changer (OLTC), and preliminarily diagnosing and analyzing monitored data. The system can monitor the operating state of the OLTC online for a long time, flexibly configure the sensor channel and the sensor type according to different application requirements, automatically acquire and identify the gear position change, and correctly identify and process a gear position corresponding to the monitoring signal. 1. A system for perceiving an operating state of a large power transformer based on vibro-acoustic integration , comprising: a perception layer , a network layer and a diagnostic layer , whereinthe perception layer is used for monitoring, in real time, a state parameter for a coupling vibration signal and an acoustic signal of each of a transformer core, a winding, a clamp and a housing, a state parameter of each of a vibration signal and an acoustic signal during a gear position change of an on-load tap changer (OLTC), and preliminarily diagnosing and analyzing monitored data;the network layer is used for reliably transmitting a monitoring signal to a background; andthe diagnostic layer is used for managing basic information of a tested OLTC device; configuring a parameter for analysis of the perception layer; receiving the monitored data from the perception layer; analyzing and displaying a monitoring state and an advanced intelligent analysis result of the tested device in real time; performing fault data analysis, original graph ...

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Номер записи: 13
14-11-2023 дата публикации

System for perceiving operating state of large power transformer based on vibro-acoustic integration

Номер: US11815565B2
Автор: CHENG He, Jianping Zhao, Kaike Wang, Ling Zhang, Puzhi Zhao, Ronggang Gao, Xianfu LIU, Xinxin Wang, Yi You
Принадлежит: Nanjing Unitech Electric Power Co Ltd, State Grid Corp of China SGCC, State Grid Xinjiang Co Ltd Electric Power Research Institute

The present disclosure provides a system for perceiving an operating state of a large power transformer based on vibro-acoustic integration, including a perception layer, a network layer, and a diagnostic layer, where the perception layer is used for monitoring, in real time, a state parameter for a coupling vibration signal and an acoustic signal of each of a transformer core, a winding, a clamp and a housing, a state parameter of each of a vibration signal and an acoustic signal during a gear position change of an on-load tap changer (OLTC), and preliminarily diagnosing and analyzing monitored data. The system can monitor the operating state of the OLTC online for a long time, flexibly configure the sensor channel and the sensor type according to different application requirements, automatically acquire and identify the gear position change, and correctly identify and process a gear position corresponding to the monitoring signal.

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Номер записи: 14