Power grid line fault detection method

Abstract

The invention discloses a power grid line fault detection method, relates to a method for detecting an insulation fault of a high-voltage line, and aims to solve the problem that the detection time and the labor intensity of workers are increased as the insulation fault can be found and eliminated in advance only when an existing cable insulation fault detection range is larger. The method comprises the following specific steps of 1, obtaining a fault detection table; 2, dividing the detection results in the fault detection table according to transformer substation ranges, taking a part of the detection results of each transformer substation range as a training set, and taking the remaining part as a verification set; 3, training a neural network by using the training set, and verifying the neural network by using the verification set; exchanging the training set and the verification set for cross validation until the accuracy reaches a set threshold value, and obtaining the trained neural network; and 4, inputting a fault phenomenon obtained by the remote monitoring of a power distribution network into the trained neural network, and predicting an insulation state fault section by using the trained neural network.

Description

technical field [0001] The invention relates to a method for detecting insulation faults of high-voltage lines. Background technique [0002] Due to the long-term work of high-voltage cables, it is easy to cause insulation aging. The detection of insulation aging is usually carried out manually by power grid maintenance personnel, and in areas with harsh environments, more frequent detection is required, but the occurrence of insulation faults is generally unpredictable, so the detection range is large to detect and eliminate insulation faults in advance , increasing the detection time and personnel work intensity. Contents of the invention [0003] The purpose of the present invention is to overcome the problem that the existing cable insulation fault detection range is relatively large, and the insulation fault can be detected and eliminated in advance, which increases the detection time and personnel work intensity, and provides a power grid line fault detection method...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem that the existing cable insulation fault detection range is relatively large, and the insulation fault can be detected and eliminated in advance, which increases the detection time and personnel work intensity, and provides a power grid line fault detection method

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