Optimization Analysis of Automotive Asymmetric Magnetic Pole Permanent Magnet Motor by Taguchi Method

IF 0.9 Q4 ENGINEERING, MECHANICAL

International Journal of Rotating Machinery Pub Date : 2021-04-16 DOI:10.1155/2021/6691574

Wenchao Zhang, L. Shi, Kaiwen Liu, Lintao Li, Jianning Jing

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引用次数: 6

Abstract

In order to improve the air-gap flux density of the permanent magnet synchronous motor and reduce the cogging torque, a novel structure with asymmetric magnetic poles for automobile was proposed. Based on the characteristics of the parallel magnetic circuit, the magnetic flux path diagram is established. And the equivalent magnetic circuit model is established by the equivalent magnetic circuit method. The Taguchi method is used to be a multiobjective optimization algorithm. The total harmonic distortion of the air-gap flux density is the first optimization goal. The second and third optimization goals are the cogging torque and the average of output torque, respectively. And the torque ripple is a constraint condition. The optimized parameter combination is obtained by the Taguchi method. Finite element simulation analysis and prototype test are carried out for the optimized motor structure. The results show that the total harmonic distortion of air-gap flux density is reduced by 36.7% comparing with the initial structure. The cogging torque is reduced by 26.0%. And the average output torque is increased by 4.8%.

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汽车非对称磁极永磁电机的田口法优化分析

为了提高永磁同步电动机的气隙磁通密度，减小齿槽转矩，提出了一种新型的汽车用非对称磁极结构。根据并联磁路的特点，建立了磁通路径图。采用等效磁路法建立了等效磁路模型。田口法是一种多目标优化算法。气隙磁通密度的总谐波畸变是第一个优化目标。第二个和第三个优化目标分别是齿槽转矩和输出转矩的平均值。转矩脉动是一个约束条件。采用田口法得到了优化后的参数组合。对优化后的电机结构进行了有限元仿真分析和样机试验。结果表明，与初始结构相比，气隙磁通密度的总谐波畸变减小了36.7%。齿槽扭矩降低了26.0%。平均输出转矩提高4.8%。

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

International Journal of Rotating Machinery ENGINEERING, MECHANICAL-

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

25 weeks

期刊介绍： This comprehensive journal provides the latest information on rotating machines and machine elements. This technology has become essential to many industrial processes, including gas-, steam-, water-, or wind-driven turbines at power generation systems, and in food processing, automobile and airplane engines, heating, refrigeration, air conditioning, and chemical or petroleum refining. In spite of the importance of rotating machinery and the huge financial resources involved in the industry, only a few publications distribute research and development information on the prime movers. This journal is the first source to combine the technology, as it applies to all of these specialties, previously scattered throughout literature.