定子齿顶开槽减小开关磁阻电机振动和噪声分析

微特电机 ›› 2021, Vol. 49 ›› Issue (8): 21-26.

定子齿顶开槽减小开关磁阻电机振动和噪声分析

黄朝志, 段锦锋, 周满国, 谢威

江西理工大学电气工程与自动化学院,赣州 341000

收稿日期:2021-03-11 出版日期:2021-08-28 发布日期:2021-09-16
作者简介:黄朝志(1978—)男,博士研究生,副教授,研究方向为电机噪声振动分析及电磁场有限元数值计算等。
基金资助:
国家自然科学基金项目(51767009)

Analysis of Reducing Vibration of Switched Reluctance Motor Using New Stator with Slot on Tooth Tip

HUANG Chao-zhi, DUAN Jin-feng, ZHOU Man-guo, XIE Wei

School of Electrical Engineering and Automation, Jiangxi University of Science and Technology, Ganzhou 341000, China

Received:2021-03-11 Online:2021-08-28 Published:2021-09-16

摘要/Abstract

摘要： 开关磁阻电机的双凸极结构引起较大振动噪声,限制了它在许多领域的应用。根据虚位移理论分析了径向力减小的原理。在定子齿顶开矩形槽,沿径向方向的磁通密度部分改变为切向方向,减小了径向力,从而减小振动噪声。通过优化槽口的宽度和高度,得出最佳开槽尺寸。对传统定子和开槽定子多物理场分析,得到两种结构的固有频率、振动响应频率以及声压频谱。仿真表明,该方法有效减小了开关磁阻电机的径向力,改善了开关磁阻电机的振动和噪声。

关键词: 开关磁阻电机, 噪声, 径向力, 开槽定子, 多物理场, 声压频谱

Abstract: The doubly salient structure of switched reluctance motor (SRM) can cause large acoustic noise, which limits its application in many fields.The principle of radial force reduction was analyzed according to the theory of virtual displacement. Rectangular slot was set on the stator tooth tip, and the flux density along the radial directionwas changed to tangential direction, which reduced the radial force and improved the acoustic noise. The optimal slot size was obtained by optimizing the width and depth of the slot.The multiple physical field analysis of conventional stator and slotted stator, the natural frequency, vibration frequency and sound pressure spectrum of the two models were carried out.It is provedthat the method could effectively reduce the value of the radial force of SRM as well as improve vibration and noise.

Key words: switched reluctance motor(SRM), acoustic noise, radial force, slotted stator, multiple physical field, sound pressure spectrum

中图分类号:

TM352

黄朝志, 段锦锋, 周满国, 谢威. 定子齿顶开槽减小开关磁阻电机振动和噪声分析[J]. 微特电机, 2021, 49(8): 21-26.

HUANG Chao-zhi, DUAN Jin-feng, ZHOU Man-guo, XIE Wei. Analysis of Reducing Vibration of Switched Reluctance Motor Using New Stator with Slot on Tooth Tip[J]. Small & Special Electrical Machines, 2021, 49(8): 21-26.

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