Distribution network overhead line fault self-recovery method and system

A fault self-healing, overhead line technology, applied in fault locations, information technology support systems, circuit devices, etc., can solve problems such as unreliable fault self-healing, achieve fault self-healing, prevent identification errors, and prevent power outages again. Effect

Active Publication Date: 2018-01-19
GUANGXI POWER GRID ELECTRIC POWER RES INST +2
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Problems solved by technology

[0004] Based on this, it is necessary to provide a fault self-healing method and system for the overhead line of d

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  • Distribution network overhead line fault self-recovery method and system
  • Distribution network overhead line fault self-recovery method and system
  • Distribution network overhead line fault self-recovery method and system

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[0038] In order to better understand the purpose, technical solutions and technical effects of the present invention, the present invention will be further explained below in conjunction with the drawings and embodiments. At the same time, it is stated that the embodiments described below are only used to explain the present invention, not to limit the present invention.

[0039] The embodiment of the present invention provides a self-healing system for overhead line faults in a distribution network, such as figure 1 As shown, the system includes: a distribution automation master station 100, a feeder automation switch 200, and a monitoring device 300. The feeder automation switch includes the substation outlet switch 210, the section switch 220 and the tie switch 230. The monitoring device includes the outlet switch secondary device 310 and the wireless public network FTU320; the outlet switch secondary device 310 is connected to the substation outlet switch 210, each section swi...

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Abstract

The invention provides a distribution network overhead line fault self-recovery method and system. Section switch fault information, interconnection switch fault information and outlet switch fault information in a control area are received, fault line outlet switches and two feeder automation switches the most closest to two ends of a fault position are determined according to the fault information, the two feeder automation switches the most closest to the two ends of the fault position are opened and locked according to the re-closing frequency of the fault line outlet switches, closing commands are given to different switches according to the types of the two feeder automation switches the most closest to the two ends of the fault position, and line power supply of a non-fault positionis recovered. Therefore, different re-closing frequency of different outlet switches in a line can be adapted to, isolation of the fault position is ensured, different closing commands are given according to different types of the two feeder automation switches the most closest to the two ends of the fault position, power supply recovery of the line at the non-fault position is ensured, one morepower failure caused by mistaken switching of the switches is prevented, and fault self-recovery can be more reliably realized.

Description

technical field [0001] The invention relates to the technical field of power distribution system feeder automation, in particular to a fault self-healing method and system for an overhead line of a distribution network. Background technique [0002] Feeder automation refers to the use of computer technology and data communication technology to automate the supervision of distribution network lines between substation outgoing lines and user electrical equipment. It mainly includes two aspects: one is line status monitoring under normal power supply conditions; the other is Fault detection, fault isolation, transfer and restoration of power in fault conditions. [0003] The fault self-healing method of the traditional feeder automation system is to use the monitoring device to collect the fault parameters of each switch on the distribution line after the fault occurs, and send the fault parameters to the main power distribution station through the communication mode of the wir...

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Application Information

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IPC IPC(8): H02J13/00H02H7/28G01R31/08
CPCY04S10/52
Inventor 俞小勇董旭柱李瑾谢雄威高立克吴争荣陈立明刘志文陈子民李克文陶凯
Owner GUANGXI POWER GRID ELECTRIC POWER RES INST
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