摘  要：为了提高永磁同步电机性能，采用电磁场有限元法、在不考虑永磁体作用的情况下、通过分别施加交、直轴电枢电流进行计算。计算交、直轴电枢反应电抗会带来很大误差。分析了产生误差的原因，在此基础上提出了一种新的计算方法，即考虑电机的实际运行情况和交、直轴之间交叉饱和的影响。计算结果与理论分析一致，具有一定实用价值。
关键词：永磁同步电机；电枢反应电抗；参数计算

Abstract: In the paper,calculated the quadrature-axis and direct-axis armature reaction reactance calculated through exerting the quadrature-axis and direct-axis armature current respectively without considering permanent magnet,based on electromagnetic FEM.The calculation results were not accurate using the method,and analyzed the reasons of error.Presented a new method presented to calculate the quadrature-axis and direct-axis armature reaction reactance accurately,which considered the actual operation condition of the permanent magnet synchronous generator and the crossing saturation effect between quadrature-axis and direct-axis.Results consistent with the theoretical analysis,have some practical value.
Key Words: Permanent magnet synchronous machine;Armature reaction reactance;Parameter calculation