动车组牵引电机定子匝间短路故障在线诊断研究

Research on Online Diagnosis of Stator Interturn Short Circuit Fault of EMU Traction Motor

随着动车组列车运营数量的增多,保证列车的安全运行和减小运用、检修成本意义重大。动车组牵引电机作为动车组机电能力转换装置,对其状态监测和故障诊断直接决定了动车组列车运行的安全性和检修成本,牵引电机定子匝间短路故障成因和在线技术分析是有效诊断的基础。

With the increasing use of EMU trains in China,it is significant to ensure the safe operation of trains and reduce the operation and maintenance costs.As the mechanical and electrical capacity conversion device,the condition monitoring and fault diagnosis of EMU traction motor directly determine the safety and maintenance cost of EMU train operation.The analysis of the causes of stator interturn short circuit fault of traction motor and the technical requirements of online fault diagnosis are the basis of effective diagnosis.