Abstract：This paper aims at accurately predicting the nonlinear radial electromagnetic force in switched reluctance motors (SRMs). First, the saturated magnetic field of a SRM was predicted by the analytical method based on the magnetomotive force multiplying the permeance and the characteristic curve of the core material. Then, the nonlinear radial electromagnetic force was obtained by solving the Maxwell stress equation. The proposed analytical method can predict the radial electromagnetic force in SRMs with an arbitrary number of stator poles and rotor poles at an arbitrary rotor position. The results show that the radial electromagnetic force obtained by the analytical method is in good agreement with that of the finite element method, which further verifies proposed method. It lays the foundation for the vibroacoustic prediction and optimization of SRMs.
胡胜龙, 左曙光, 刘明田. 开关磁阻电机非线性径向电磁力解析建模[J]. 电工技术学报, 2020, 35(6): 1189-1197.
Hu Shenglong, Zuo Shuguang, Liu Mingtian. Analytical Modeling of Nonlinear Radial Electromagnetic Force in Switched Reluctance Motors. Transactions of China Electrotechnical Society, 2020, 35(6): 1189-1197.
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2020, Vol. 35 
