PENG Zaixing, WANG Song, YI Lin, et al. Research on Fault Diagnosis of High Voltage Circuit Breaker Opening/Closing Coils Based on SVM Principal Component Analysis[J]. High VoltageApparatus, 2019, 55(7): 39-46.
PENG Zaixing, WANG Song, YI Lin, et al. Research on Fault Diagnosis of High Voltage Circuit Breaker Opening/Closing Coils Based on SVM Principal Component Analysis[J]. High VoltageApparatus, 2019, 55(7): 39-46. DOI: 10.13296/j.1001-1609.hva.2019.07.007.
Research on Fault Diagnosis of High Voltage Circuit Breaker Opening/Closing Coils Based on SVM Principal Component Analysis
Failure to operation is one of the most serious fault types of breakers
which may lead to a large-scale pow-er outage. In recent years-failure to operation happened frequently partially due to the fault of the opening/closingcoils. It is important to diagnose the operating status of the opening/closing coils and ensure the safety of the powergrid. In this paper-opening/closing coil current is collected both in normal and abnormal conditions by simulatingsome typical fault types such as under-voltage fault-poor contact with the circuit-the core jam and so on. Further-more SVM algorithm is used to diagnose the fault of the opening/closing coils. In particular the characteristic parame-ters of the current waveform are extracted by the principal component analysis(PCA)which is regarded as the basisof diagnosis. The method of principal component analysis based on SVM can identify the fault effectively and facili-tate the construction of fault diagnostic expert system to ensure the reliable operation of the closing/opening coil.