Fault Diagnosis Method for SCR Rectifier Circuit Based on Support Vector Machines

Based on support vector machines(SVM) theory,a new method of fault diagnosis for controlled rectifier circuits is proposed in the paper.Fault diagnosis of the rectifier device can be done on the basis of direct waveform analysis output from the rectifying valve,with SVM model recoginition.Three-phase bridge rectifier circuit(SCR) fault is presented as an example for verification.The experiment result indicates that the method can accurately diagnose and locate the fault for controlled rectifier circuits,which is justified practical and high applicable value.