电机与控制应用2024，Vol.51Issue(6)：78-87,10.DOI:10.12177/emca.2024.051
匝间短路故障对永磁同步电机定子侧电流影响分析
Analysis of the Effect of Inter-Turn Short-Circuit Fault on the Stator Current of Permanent Magnet Synchronous Motor
摘要
Abstract
The inter-turn short-circuit(ITSC)fault of stator winding is one of the most common faults of permanent magnet synchronous motor(PMSM).A large current will be generated in the shorted portion of the winding when the fault occurs,which will pose a great threat to the safe operation of PMSM.In order to diagnose the ITSC fault,the effect of ITSC fault on the stator current of PMSM is analyzed.The stator currents of PMSM with different ITSC faults are obtained by finite element simulation and experimental measurements.And the effect of ITSC fault on stator current of PMSM is analyzed by current imbalance,negative-sequence current,and wavelet energy spectrum.The analysis results show that with the increase of short-circuited turns and the decrease of contact resistance,the current imbalance,negative-sequence current,and the energy gradient of DI in wavelet energy spectrum increase.Thus,the increase of these three indicators can be used as the basis for diagnosing the ITSC fault.关键词
永磁同步电机/匝间短路故障/电流不平衡度/负序电流/小波能量谱Key words
permanent magnet synchronous motor/inter-turn short-circuit fault/current imbalance/negative-sequence current/wavelet energy spectrum分类
信息技术与安全科学引用本文复制引用
张鹏,赵国新,崔效源,赵欣媛..匝间短路故障对永磁同步电机定子侧电流影响分析[J].电机与控制应用,2024,51(6):78-87,10.基金项目
国家自然科学基金(51407119)National Natural Science Foundation of China(51407119) （51407119）
