基于失电残余电压的永磁同步电动机失磁故障诊断研究  

Diagnosing Demagnetization Fault for Permanent Magnet Synchronous Motor Based on Residual Voltages after AC Dump

作　　者：陈诚 梁伟铭 钟钦[2] 任纪良 马宏忠[2] 

机构地区：[1]上海汽车集团有限公司新能源汽车事业部,上海201804 [2]河海大学能源与电气学院,南京211100

出　　处：《大电机技术》2014年第2期22-25,共4页Large Electric Machine and Hydraulic Turbine

基　　金：上海汽车工业科技发展基金会基金(1106)

摘　　要：对利用失电残压诊断永磁同步电动机转子失磁故障进行研究。首先,对电机失电后定子绕组残余电压进行分析,讨论了定子失电残余电压的产生、性质;其次,分析了失磁故障对失电残余电压的影响,提出了利用失电残余电压诊断失磁故障的判别依据;最后,通过实验研究验证了该判据的正确性与有效性,表明基于失电残余电压诊断永磁同步电动机失磁故障方法的可行性。This paper focus on diagnosing demagnetization fault for permanent magnet synchronous machine（PMSM） by residual voltage after AC dump. First, through analyzing the reason of residual voltage, its properties were discussed. Then, the effect of demagnetization fault on residual voltage was analyzed, and the discrimination of diagnosing demagnetization fault by residual voltage was presented. Finally, the experiment verifies the correction and creditability of the discrimination, and residual voltage can be used in demagnetization failure of PMSM.

关 键 词：永磁同步电动机 失磁故障 失电残余电压 

分 类 号：TM351[电气工程—电机]