摘  要：利用有限元分析软件Ansys对永磁同步电动机内部电磁场进行分析计算，结合样机获得电动机空载及负载运行时的交、直轴电枢反应磁场，并通过Ansys的后处理功能得到空载时的气隙磁密和磁矢位分布图；在此基础上对永磁同步电动机的反电动势进行了分析计算，为永磁同步电动机的性能分析及设计提供了一定参考。
关键词：永磁同步电动机；有限元软件；电磁场；电动势

Abstract: With the Ansys software,the electromagnetic field in a pernanent magnet sysnchronous motor(PMSM)is analyzed and calcu ated.Through a sample motor,no-load and load electromagnetic field in PMSM are obtained.By post processing of Ansys,the pictures of magnetic flux density and magnetic vector potential are gained.Based on this,back EMF of PMSM is analyzed and calculated.The calculation results are helpful for the design and performance analysis of PMSM.
Key Words: Permanent magnet synchronous motor;Ansys software;Electromagnetic field;EMF