Skewing and notching configurations for torque pulsation minimization in spoke-type interior permanent magnet motors

2016 International Conference on Control, Electronics, Renewable Energy and Communications (ICCEREC) Pub Date : 2016-09-01 DOI:10.1109/ICCEREC.2016.7814984

E. Sulaiman, G. M. Romalan, N. A. Halim

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引用次数: 7

Abstract

Interior permanent magnet (IPM) motors become popular and commonly used in industry and domestic applications. One of them is spoke-type IPM. Spoke-type interior permanent magnet (IPM) machines are an attractive topology for high-performance electric motors. In most of the applications, the high strength of permanent magnets causes the undesirable effects of high cogging torque that can aggravate motor performance. Consequently, the reduction of cogging torque becomes an important topic in IPM motor. In this paper, to minimize the effect of cogging torque in IPM motor, two common techniques for cogging torque reduction such as skewing, and notching, has been analyzed in order to compare the cogging torque, back EMF and efficiency effect. 3D finite element analysis (FEA) by JMAG software is carried out for each technique. The results showed the reduction of cogging torque up to 98.6%, followed by 81.84%, 45.24% and 36.79% compared to the initial model design.

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轮辐式内置永磁电机中扭矩脉动最小化的倾斜和缺口结构

内部永磁(IPM)电机在工业和家庭应用中越来越受欢迎和广泛使用。其中之一是辐条式IPM。辐条式内嵌永磁(IPM)电机是高性能电机的一种有吸引力的拓扑结构。在大多数应用中，永磁体的高强度会导致高齿槽转矩的不良影响，从而恶化电机性能。因此，减小齿槽转矩成为IPM电机研究的一个重要课题。为了最大限度地减少齿槽转矩对IPM电机的影响，本文分析了两种常用的齿槽转矩减小技术，即斜切和切槽，以比较齿槽转矩、反电动势和效率影响。采用JMAG软件对各工艺进行了三维有限元分析。结果表明，与初始模型设计相比，齿槽转矩减小幅度分别为98.6%、81.84%、45.24%和36.79%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2016 International Conference on Control, Electronics, Renewable Energy and Communications (ICCEREC)

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