利用有限元法计算电机铁芯涡流损耗

Calculation of Eddy Current Losses in Steel Cores of the Motor Using Finite Element Method

从电机铁芯冲片的实际出发 ,建立起有限元分析的数学模型 ,利用有限元分析软件ANSYS进行磁场模拟及涡流损耗的计算 ,并与解析法的计算结果相比较 ,分析两者差别的原因 ,揭示了后者的局限性。

In this paper,proceeding from the actual situation of the core plate of the motor ,we construct the mathematical model for FEA .By simulating magnetic field and calculating eddy current losses with FEA software ANSYS,comparing its results to those made out with analytical method ,and analyzing the causes of differences between the two results,we reveal the limitations of the latter.The study in this paper is of some value for reference in calculating core losses of the motor in the actual engineering.