基于多分辨率分析和支持向量机的电力电子电路故障诊断技术

Fault Diagnosis Technology Based on Multi-resolution Analysis and Support Vector Machine in Power Electronic Circuit

将小波多分辨率分析(multi-resolution analysis,MRA)和支持向量机(support vector machine,SVM)应用于电力电子电路故障的诊断.首先采用小波多分辨率分析对电力电子故障信号进行特征处理,再用支持向量机理论建立多类故障分类器来识别电力电子电路故障,仿真结果验证了该方法的正确性和有效性.

Wavelet multi-resolution analysis（MRA） method and support vector machine（SVM） method are applied to diagnose faults of power electronic circuits.The paper uses the wavelet MRA to deal with the characteristics of power electronic fault signal,and then identifies the fault diagnosis of power electronic circuit by the multi-class fault classifier based on SVM.Satisfied simulation results are obtained.