High-voltage circuit breaker characteristic parameter prediction method and system based on multi-source signal fusion

Abstract

The invention provides a high-voltage circuit breaker characteristic parameter prediction method based on multi-source signal fusion. The method comprises the following steps of judging whether a high-voltage circuit breaker is in a fault state or not, if yes, collecting fault data of the high-voltage circuit breaker at the Tth moment in the fault state, the fault data comprising a vibration signal, a sound signal, a temperature signal, a current signal and operation times; extracting feature vectors of the vibration signal, the sound signal, the temperature signal, the current signal and the number of operation times, dividing the feature vectors into a training set and a to-be-processed data set, taking the training set as the input of a preset deep learning model, and taking the predicted value of the fault data as the output of the deep learning model, performing learning training on the deep learning model; and inputting a to-be-processed data set into the trained deep learning model to obtain a predicted value of the to-be-processed data set at a T+n moment, n being any positive natural number.

Description

technical field [0001] The invention relates to the technical field of state monitoring of high-voltage circuit breakers, in particular to a method and system for predicting characteristic parameters of high-voltage circuit breakers based on multi-source signal fusion. Background technique [0002] High-voltage circuit breakers play a very important role in protection and control in the power system by breaking, closing and carrying the normal or abnormal current of the operating line. Its operating status is of great significance to the stability and reliability of the power system. According to statistics on the occurrence of circuit breaker failures, 63.2% of domestic circuit breaker failures are caused by operating mechanisms. [0003] With the rapid development of UHV lines in my country, the requirements for the stability of the characteristic parameters of high-voltage circuit breakers are becoming more and more stringent. For equipment life and power system stability...

AI Technical Summary

Problems solved by technology

[0004] At present, the traditional detection method can only use the high-voltage switch dynamic characteristic tester to measure it during power outage maintenance, and cannot test it online. The existing technology is only based on the characteristic parameters of the high-voltage circuit breaker obtained by fitting the data measured in the laboratory environment. relationship curve, with certain limitations

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