Reduction of Cogging Torque in AFPM Machine Using Elliptical-Trapezoidal-Shaped Permanent Magnet

IF 0.6 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Applied Computational Electromagnetics Society Journal Pub Date : 2021-01-01 DOI:10.47037/2021.aces.j.360819

S. Ali, J. Ikram, C. Devereux, S. Bukhari, S. Khan, N. Khan, J. Ro

引用次数: 6

Abstract

─ The reduction in cogging torque enables smooth operation and an increase in the torque density of the machine. This research aims to minimize cogging torque in dual rotor single stator axial flux permanent magnet (AFPM) machine. Reduction in cogging torque makes the back EMF sinusoidal and reduces the torque ripples in AFPM machine. In this paper, an elliptical trapezoidal-shaped permanent magnet (PM) is proposed to minimize torque ripples of the AFPM machine. The 3D finite element analysis (FEA) is used for the analysis of AFPM machine. The optimization of AFPM machine is done by employing the asymmetric magnet-overhang along with the parameters of elliptical-shaped PM using Genetic algorithm (GA). Index Terms ─ Axial flux machine, cogging torque, elliptical-trapezoidal magnet, FEA, slot-less, torque ripples.

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椭圆-梯形永磁体减小AFPM电机齿槽转矩

─齿槽扭矩的减小使操作平稳，并增加了机器的扭矩密度。本研究的目的是使双转子单定子轴向磁通永磁(AFPM)电机的齿槽转矩最小。齿槽转矩的减小使反电动势呈正弦波，减小了AFPM电机的转矩波动。本文提出了一种椭圆梯形永磁体(PM)来减小AFPM电机的转矩波动。采用三维有限元分析(FEA)对AFPM机床进行分析。采用非对称磁体悬伸法，结合椭圆型永磁材料的参数，利用遗传算法对永磁材料进行优化。索引项─轴向磁通机，齿槽转矩，椭圆-梯形磁体，有限元分析，无槽转矩波纹。

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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来源期刊

Applied Computational Electromagnetics Society Journal 工程技术-电信学

CiteScore

1.60

自引率

28.60%

发文量

审稿时长

9 months

期刊介绍： The ACES Journal is devoted to the exchange of information in computational electromagnetics, to the advancement of the state of the art, and to the promotion of related technical activities. A primary objective of the information exchange is the elimination of the need to "re-invent the wheel" to solve a previously solved computational problem in electrical engineering, physics, or related fields of study. The ACES Journal welcomes original, previously unpublished papers, relating to applied computational electromagnetics. All papers are refereed. A unique feature of ACES Journal is the publication of unsuccessful efforts in applied computational electromagnetics. Publication of such material provides a means to discuss problem areas in electromagnetic modeling. Manuscripts representing an unsuccessful application or negative result in computational electromagnetics is considered for publication only if a reasonable expectation of success (and a reasonable effort) are reflected. The technical activities promoted by this publication include code validation, performance analysis, and input/output standardization; code or technique optimization and error minimization; innovations in solution technique or in data input/output; identification of new applications for electromagnetics modeling codes and techniques; integration of computational electromagnetics techniques with new computer architectures; and correlation of computational parameters with physical mechanisms.