Switched reluctance machines (SRMs) have been studied by many researchers as an alternative to the other types of electrical machines for use in electric and hybrid vehicle applications. SRMs are fault tolerant and have wide speed operating range. However, they suffer from several disadvantages, including high vibration, acoustic noise, and torque ripple. In this article, the placement of rectangular windows in both the rotor and stator poles is proposed to reduce the vibration and acoustic noise of SRMs. An iterative optimization algorithm in a wide speed range of operation using finite-element analysis (FEA) tools provides the best position and dimension of window design parameters. Multiphysics FEA is also performed to predict the vibration and acoustic noise of the optimized design. The results of this study present that placing windows in both the stator and rotor of the SRMs can significantly reduce the acoustic noise compared with the baseline SRMs. Based on the simulation results, the optimum design has been constructed as a prototype and tested in a wide speed operating condition. The simulation and experimental test validation results prove the effectiveness of the proposed design in mitigating the acoustic noise and vibration.

中文翻译：

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定子和转子极上带有窗口的开关磁阻电机的声噪声抑制

许多研究人员已经研究了开关磁阻电机 (SRM) 作为其他类型电机的替代品，用于电动和混合动力汽车应用。SRM 具有容错能力并具有较宽的速度操作范围。然而，它们有几个缺点，包括高振动、噪声和扭矩波动。在本文中，建议在转子和定子磁极中放置矩形窗口以降低 SRM 的振动和声学噪声。使用有限元分析 (FEA) 工具在很宽的操作速度范围内的迭代优化算法提供了窗口设计参数的最佳位置和尺寸。还执行多物理场 FEA 以预测优化设计的振动和声学噪声。这项研究的结果表明，与基线 SRM 相比，在 SRM 的定子和转子中放置窗口可以显着降低声学噪声。根据仿真结果，优化设计已被构建为原型并在宽速运行条件下进行测试。仿真和实验测试验证结果证明了所提出的设计在减轻声学噪声和振动方面的有效性。