永磁体涡流损耗与永磁同步电机温度场研究∗

摘要

The current trends for the motor industry, PMSM has been widely applied ,and the motor unit capacity increases, resulting in increasing temperature of inside the motor,the high temperature severely affected the reliable operation of the motor. In application of the thermal function of Ansys FEM software PMSM was simulated,analysis of permanent magnet eddy current loss effects on the temperature field,demonstrates the importance of permanent magnet eddy current losses.%针对当前电机产业的发展趋势，永磁同步电机得到广泛应用，并且电机单机容量逐渐增大，致使电机内部温升不断增大，过高的温升严重影响了电机的可靠运行。利用Ansys 有限元软件的热分析功能对永磁同步电机进行仿真，分析了永磁体涡流损耗对温度场的影响，证明了永磁体涡流损耗的重要性。