Fault positioning method for gas insulated switchgear equipment

Abstract

The invention discloses a fault positioning method for gas insulated switchgear equipment, wherein the method comprises the steps: carrying out fault partitioning on GIS equipment, and dividing the GIS equipment into 10 fault areas; processing the gas data of different fault areas according to a sliding time window; dividing the gas data of the different fault areas subjected to sliding processing into training sets and a test set according to the proportions of 80% and 20%; determining initial parameters of a neural network; building a CNN-LSTM neural network model; preprocessing the training set data and then sending the data into the neural network model for training; calculating gradient values of internal parameters of the neural network through error back propagation; updating neural network parameters through an optimization algorithm, repeating iteration until the loss function is reduced to a set value, and ending neural network model training; and determining the precision of the CNN-LSTM model through the change of the number of the training sets and the test of the test set. The technical problems of complex work, low positioning precision and the like existing in GIS fault positioning are solved.

Description

Technical field [0001] The present invention pertains to a gas-insulated electrical equipment failure Technical Field; particularly to an insulated electrical equipment fault location method for a gas. Background technique [0002] Gas Insulated Switchgear equipment (GIS) due to the small footprint, by the external environment is small, safe and reliable operation and simple maintenance, in recent decades more and more widely used in home and abroad. But in the manufacturing and assembly process of GIS, often due process and other issues will make the internal GIS leave some small defects, such as metal particles, such as air-gap insulation, these tiny defects in the process of GIS operation may develop dangerous discharge channel, and ultimately cause insulation breakdown accident. Therefore, to prevent insulation failure GIS equipment to ensure the safe operation of the power system, running of GIS partial discharge monitoring becomes increasingly important. In the partial disc...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a fault location method for gas-insulated combined electrical equipment to solve the technical problems of relatively complicated work and low positioning accuracy for fault location of gas-insulated combined electrical equipment (GIS) in the prior art

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