Mechanical Fault Diagnosis Method of High Voltage Vacuum Circuit Breaker Based on Vibration Signal

Guohai Wang ； Nan Luo ； Yanxi Liu

《World Scientific Research Journal》 7卷6期 (2021/06) Pp. 325-333

https://doi.org/10.6911/WSRJ.202106_7(6).0043

摘要

Aiming at the problem that the mechanical faults of high-voltage vacuum circuit breakers are difficult to identify, a high-voltage vacuum circuit breaker fault diagnosis method based on Ensemble empirical mode decomposition (EEMD) and support vector machine (SVM) is proposed. Use the laboratory 10kV indoor vacuum high voltage circuit breaker to collect the vibration data of 9 states such as normal opening and closing actions, loose screws, falling screws, jammed transmission mechanism, insufficient closing spring energy storage, etc., and solve the collected data. The energy entropy value of the EEMD component constitutes a feature vector set. The feature vector set is divided into a training set and a test set. The training set is used to train the SVM to obtain an intelligent fault recognition model. The test set is input to the model for testing to realize the high-voltage vacuum circuit breaker mechanism. Troubleshooting. Experiments show that the mechanical fault diagnosis method of high-voltage vacuum circuit breakers based on EEMD and SVM can effectively identify mechanical faults in different states.

關鍵字

High-voltage vacuum circuit breaker ； Mechanical failure ； Vibration signal ； Fault diagnosis

參考文獻

GUAN Yonggang, YANG Yuanwei, ZHONG Jianying, et al. Review on Mechanical Fault Diagnosis Methods for High⁃voltage Circuit Breakers[J]. High Voltage Apparatus, 2018, 54 (7): 10-19.

ZHANG Jianfeng. Research on Fault Diagnosis of High Voltage Circuit Breaker Based on Mechanical Vibration Signal[D]. Heilongjiang University,2016.

HUANG Nantian, CHEN Huaijin, LIN Lin, et al. Mechanical Fault Diagnosis of High Voltage Circuit Breakers Based on S⁃transform and Extreme Learning Machine[J]. High Voltage Apparatus, 2018, 54 (6): 74-80.

LI Binbin, KE Yanguo, TIAN Yu, et al. Mechanical condition detection of high voltage circuit breaker based on wavelet packet theory[J]. Journal of Hefei University of Technology (Natural Science), 2019,42 (07): 924-929.

ZHONG Jianying, LIU Yang, LIN Yi, GUO Yujing. Mechanical Fault Diagnosis Technology Research of High-voltage Circuit Breaker Based on the Vibration Signal Characteristic[J]. High Voltage Apparatus, 2013,49 (09): 49-54.