基于S变换的全桥整流电路故障诊断研究

Fault Diagnosis of the Rectifier Circuit based on S-Transform Analysis

针对应用广泛的全桥整流电路故障分析,根据整流电压波形的畸变规律,分析了2个以内的二极管故障分为7类共计22种故障元。运用S变换分析,提取了故障特征值,并以此构造故障模式向量作为RPORP神经网络的输入。实现了电路的故障诊断与定位。为双凸极发电机整流电流故障的进一步研究打下了基础。

This paper introdces the fault diagnosis of the rectification circuit.The faults are classified as 7 patterns or 22 fault states according to the distortion of the rectified voltage waveform.By using the S-transform,a multi-dimensional fault pattern vector is formed as the input of the RPORP network,which is used to diagnose the fault and its location.