The eddy-current loss of switched reluctance motor (SRM) is studied and analyzed in this paper. As a significant part of core loss, eddy-current loss has a great influence on motor performance. First, the average magnetic flux waveforms in every distributed region are derived from the magnetic equivalent circuit (MEC) model. Based on this, each harmonic of magnetic density is obtained by adopting the fast Fourier transform (FFT) method for further calculation. Then, each harmonic eddy-current loss is computed by sinusoidal magnetic density and the total eddy-current loss in different region of motor is derived by superposing of them. Therefore, the calculated results at different speed and conduction angles of each region are analyzed. Finally, the 3D finite element (FE) model is established in software FLUX and the experimental platform of the SRM prototype is built.

中文翻译：

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开关磁阻电机涡流损耗的计算与分析


本文对开关磁阻电机（SRM）的涡流损耗进行了研究和分析。涡流损耗作为铁芯损耗的重要组成部分，对电机性能影响很大。首先，从磁等效电路（MEC）模型导出每个分布区域的平均磁通量波形。在此基础上，采用快速傅里叶变换（FFT）方法得到磁密度的各谐波进行进一步计算。然后，通过正弦磁密度计算各谐波涡流损耗，并将它们叠加得出电机不同区域的总涡流损耗。因此，对各区域不同速度和导通角下的计算结果进行分析。最后，在FLUX软件中建立3D有限元（FE）模型，搭建SRM样机的实验平台。