High Voltage Circuit Breaker Identification Method Based on Support Vector Machine and Multibody Dynamics Simulation

Abstract

The invention discloses a high-voltage circuit breaker recognition method based on support vector machine and multi-body dynamics simulation, including establishing a three-dimensional model of the high-voltage circuit breaker, calibrating and verifying the three-dimensional model; by changing the size, material and characteristic parameters of the three-dimensional model, Simulate various faults of high-voltage circuit breakers to obtain corresponding mechanical characteristic waveforms; perform waveform interception, mathematical morphology filtering and feature extraction processing on the mechanical characteristic waveforms corresponding to various faults to obtain feature vector sample sets; based on support vector machine and its one-to-many classification method, train the classifier, and calculate the reliability of each classification; input the measured unknown fault feature vector into the trained support vector machine to identify the fault type, and realize the mechanical fault classification of high-voltage circuit breakers. And complete self-study. The invention does not need to carry out a large number of physical simulation tests, can accurately identify the fault identification of the high-voltage circuit breaker, has a self-learning function, and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of electrical equipment fault identification, in particular to a high-voltage circuit breaker identification method based on a support vector machine and multi-body dynamics simulation. Background technique [0002] High-voltage circuit breaker is one of the largest power equipment in the power system, and it is also the most important switchgear. It is responsible for the dual tasks of control and protection. Its working reliability is an important factor that determines the safe operation of the power system. [0003] However, since the internal structure of the high-voltage circuit breaker is not visible, it is difficult to intuitively know whether the components therein are normal. However, it is impractical to measure and analyze the internal components after dismantling the high-voltage circuit breaker in operation. Therefore, in order to know the mechanical state of the high-voltage circuit breaker, t...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the invention is to overcome the deficiencies in the current high-voltage circuit breaker mechanical fault identification process

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