摘要：由于制造工艺问题和单机装机容量的增加，电机绕组故障在电机中很常见，特别是绕组问题。论文对工业应用中比较普遍的同步发电机工作原理，电机绕组故障类型和机理进行了分析研究。同时，采用磁场有限元法分析、建立电机故障模型，最后运用当前较流行的小波理论对故障结果做出分析。通过仿真结果和分析，给出故障诊断的方法。
关键词：同步电机；短路故障；有限元法；小波分析

Abstract:  As the manufacturetechnics and the motor capacitance gain,the fault of motor winding is familiar, especially to the part of winding. This paper analied the model of synchronous inductor which was popular in industrial system, and the kinds of winding fault, and the result of the fault. Meantime, choosing the finite element method to analyse and build the motormodel. At the end, this paper analied the fault using the wavelet and gave the way of fault diagnosis.
Key words:  synchronous motor;short circuits;finite element method;wavelet analysis