基于定转子齿开槽的开关磁阻电机振动噪声抑制

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (9) : 312-321.

论文

周云红，王东，黄飞，胡泮，孙玉坤

作者信息 +

Vibration and noise suppression of switched reluctance motor based on stator and rotor slotted

ZHOU Yunhong, WANG Dong, HUANG Fei, HU Pan, SUN Yukun

Author information +

文章历史 +

摘要

振动噪声的抑制是近年来开关磁阻电机研究的热门领域。本文根据麦克斯韦张量法理论分析了径向磁拉力减小的原理，通过在定子齿顶、转子齿两侧同时开矩形槽，增大了定转子间气隙长度的同时又将一部分沿径向方向的磁通密度改变为切向方向，减小了径向磁拉力，达到抑制电磁振动的目的。利用参数化扫描的方法，对开关磁阻电机的开槽参数进行了优化，得出开槽尺寸，并对比分析开槽前后电机的径向磁拉力。运用Ansys Workbench模块分别对定转子齿开槽前后的电机定子进行模态、谐响应以及噪声分析，得到其模态固有频率、模态参与因子、振动响应频率以及声压频谱。分析结果表明：该方法有效减小了开关磁阻电机的径向磁拉力，改善了开关磁阻电机的振动和噪声。

Abstract

The suppression of vibration and noise is a hot research field of switched reluctance motor in recent years. Based on Maxwell tensor theory, the principle of reducing radial magnetic tension was analyzed in this paper. By cutting rectangular slots at the top of stator teeth and on both sides of rotor teeth at the same time, the length of air gap between stator and rotor was increased, and a part of magnetic flux density along radial direction changed into along tangential direction, which could reduce the radial magnetic tension and achieve the purpose of restraining electromagnetic vibration. Using the parametric scanning method, the slotting parameters were optimized, and the radial magnetic pull force of motor before and after slotting were compared and analyzed. The modal, harmonic response and noise of the motor stator before and after slotting were analyzed by ANSYS Workbench module, and the modal natural frequency, modal participation factor, vibration response frequency and sound pressure spectrum were obtained. The results show that this method can effectively reduce the radial magnetic pull force of switched reluctance motor and improve the vibration and noise of switched reluctance motor.

导出引用

周云红，王东，黄飞，胡泮，孙玉坤. 基于定转子齿开槽的开关磁阻电机振动噪声抑制[J]. 振动与冲击, 2023, 42(9): 312-321

ZHOU Yunhong, WANG Dong, HUANG Fei, HU Pan, SUN Yukun. Vibration and noise suppression of switched reluctance motor based on stator and rotor slotted[J]. Journal of Vibration and Shock, 2023, 42(9): 312-321

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