Power grid differentiation lightning protection evaluation method, device and system and recording medium

Abstract

The invention belongs to the technical field of thunder and lightning prevention, and discloses a power grid differentiation lightning protection evaluation method. The method comprises the following steps of: obtaining lightning protection information of a power transmission line of a power grid to be evaluated, and constructing a lightning protection evaluation model; constructing judging matrixes according to the model, calculating the maximum feature root of each judging matrix and the normalized feature vector of each judging matrix, carrying out consistency detection, and reserving the judging matrixes passing the detection; calculating combined weight vectors of the judging matrixes, and obtaining a first lightning protection measure from the lightning protection evaluation model according to the combined weight vectors; and crawling a corresponding lightning protection measure as a second lightning protection measure according to the lightning protection information of the power transmission line of the power grid to be evaluated, and comparing the two lightning protection measures to determine an optimal lightning protection measure. The invention further provides a system comprising a non-transient readable recording medium storing the program of the method and a processing circuit, the program can be called through the processing circuit to execute the method, and differential lightning protection evaluation of the power grid is completed.

Description

technical field [0001] The invention relates to the technical field of lightning prevention, and specifically discloses a method, a device, a recording medium and a system for evaluating a power network differential lightning protection. Background technique [0002] Due to the low insulation level of distribution lines, lightning accidents often occur. After studying the protection effect of distribution network lightning protection measures, it is found that the distribution network lightning protection measures mainly include the following: install coupling ground wires and lightning protection wires, install Line arresters, reduce grounding resistance of towers, adopt parallel gaps, and selectively put into operation automatic reclosing devices, etc. [0003] Since the distribution network is directly oriented to users, has many points and a wide area, and the electronic equipment managed by the grassroots level is huge and complex, the current existing technical solutio...

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Problems solved by technology

[0003] Since the distribution network is directly oriented to users, has many points and a wide area, and the electronic equipment managed by the grassroots level is huge and complex, the current existing technical solutions cannot perform lightning protection work on distribution lines well, and at the same time cannot provide suitable solutions for the actual situation of the lines. Therefore, there is an urgent need for a differentiated lightning protection evaluation method for power grids, which can evaluate the lightning protection performance of the current power grid and provide corresponding lightning protection measures

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