Acoustic Noise/Vibration Reduction of a Single-Phase SRM Using Skewed Stator and Rotor
Acoustic Noise/Vibration Reduction of a Single-Phase SRM Using Skewed Stator and Rotor
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DOI：
10.1109/tie.2012.2217715
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发表时间：
2013-10
影响因子：
7.7
通讯作者：
H. Yang;Y. Lim;Hyunchul Kim
中科院分区：
文献类型：
--
作者：
H. Yang;Y. Lim;Hyunchul Kim
本文提出了一种具有斜定子和转子的单相开关磁阻电机（SRM），从而显着降低了噪声和振动。电机的定子和转子叠片具有相同的倾斜角。噪声和振动的主要来源是沿定子和转子磁极之间气隙的径向磁力的快速变化。由于径向力 (RF) 在凸极附近的定子轭上最强，因此可以通过倾斜定子和/或转子叠片来减轻 RF 的突然变化。因此，RF可以更多地分布在整个定子铁芯中，进而降低RF的峰值。本文通过有限元法模拟分析RF相对于斜角的分布，设计出振动和噪声显着降低的单相SRM。根据仿真结果，构建并测试了具有三种不同斜角（0°、30°和64°）的原型电机，验证了所提出的设计在减轻噪声和振动方面是有效的。
This paper presents a single-phase switched reluctance motor (SRM) with skewed stator and rotor so that the acoustic noise and vibration have been significantly reduced. The motor has the same skew angle for both stator and rotor laminations. The main source of acoustic noise and vibration is the rapid change of radial magnetic force along the air gap between the stator and rotor poles. Since the radial force (RF) is most intensified on the stator yoke near the salient poles, the abrupt change of the RF can be mitigated by skewing the stator and/or rotor laminations. Therefore, the RF can be more distributed throughout the stator core, and in turn, the peak value of the RF is reduced. In this paper, the distribution of the RF with respect to the skew angles is analyzed through the finite-element method simulation to design a single-phase SRM with the significantly reduced vibration and noise. Based on the simulation results, prototype motors with three different skew angles (0°, 30°, and 64°) have been constructed and tested, validating that the proposed design is effective in mitigating acoustic noise and vibration.