Rapid fault positioning method and system based on active power distribution network fault area division

An active distribution network and fault location technology, applied in the field of distribution network, can solve problems such as large amount of calculation, failure of active distribution network, low fault identification efficiency, etc., achieve fast and accurate fault location, shorten fault repair time, and improve power supply reliability effect

Pending Publication Date: 2022-04-05
ZAOZHUANG POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The fault area positioning of the traditional distribution network has the characteristics of occupying a large storage space, low fault tolerance, and a large amount of calculation. When the description matrix is ​​divided into blocks or the real-time information is distorted or incomplete, it is easy to cause misjudgment. , so that the fault location method of the traditional distribution network is no longer applicable
[0007] There are still some defects in the distribution network fault interval positioning algorithm: such as slow ope

Method used

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  • Rapid fault positioning method and system based on active power distribution network fault area division
  • Rapid fault positioning method and system based on active power distribution network fault area division
  • Rapid fault positioning method and system based on active power distribution network fault area division

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Embodiment 1

[0041] In order to realize the fast location after the fault of the active distribution network, this embodiment discloses a fast fault location method based on the fault area division of the active distribution network. First, the fault section of the active distribution network is partitioned. The power supply information of the distribution network frame structure and the installation status of the measuring device are used to divide the active distribution network into regions, realize the dimensionality reduction processing of the fault node information of the active distribution network, and eliminate the results that have no influence on the location of the fault node information as much as possible, so that the fault Node information positioning is more accurate.

[0042] Specifically, when dividing, the distribution network area is divided through the active tree and passive tree of the distribution network: starting from the power source, it is defined as an active tr...

Embodiment 2

[0069] The purpose of this embodiment is to provide a computing device, which includes a memory, a processor, and a computer program stored in the memory and operable on the processor, and the processor implements the steps of the above method when executing the program.

Embodiment 3

[0071] The purpose of this embodiment is to provide a computer-readable storage medium.

[0072] A computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of the above-mentioned method are executed.

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Abstract

The invention provides a rapid fault positioning method and system based on active power distribution network fault area division. The method comprises the following steps: carrying out partition division on a fault section of an active power distribution network; carrying out fault positioning on the divided fault sections by adopting a fault positioning mathematical model; wherein in the fault positioning mathematical model, a particle swarm algorithm is adopted to carry out particle swarm position and speed updating, then particle fitness is calculated, then a particle library is updated, whether an optimal objective function is zero or not is judged, and when the optimal objective function is zero or the highest number of iterations is reached, an optimal solution, namely the specific position of the fault, is output. According to the method, the power distribution network area is firstly divided, then fault positioning is performed, accurate fault positioning after the fault occurs is realized, the line patrol burden can be reduced, the power failure area is reduced, the fault repair time is shortened, rapid and accurate fault positioning of the power distribution network is further realized, and the power supply reliability of the power distribution network is improved.

Description

technical field [0001] The invention belongs to the field of distribution network technology, and in particular relates to a fast fault location method and system based on active distribution network fault area division. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The reliability analysis of active distribution network has gradually become an important part of the power system, and realizing the goal of safe and reliable power supply is one of the important contents of active distribution network construction. It is an urgent problem to be solved in the development of active distribution network to provide fast and accurate fault location algorithm for distribution network and realize stable and efficient operation of active distribution network. [0004] With the development of the active distribution network, its scale is getting la...

Claims

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Application Information

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IPC IPC(8): G01R31/08
Inventor 李国亮刘玉娇康文文徐亿潘彪林煜清王新永付俊虎王坤代二刚李森闫立冬李苑红孟梅孟剑
Owner ZAOZHUANG POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER
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