Analysis and Optimization Design of IPMSM with a Double-layer Permanent Magnet Structure of Electric Vehicles

被引：0
|
作者：
Liu X. [1 ]
Fu J. [1 ]
Du L. [1 ]
Guo G. [1 ]
Zhu W. [1 ]
机构：
[1] School of Electrical Engineering and Automation, Jiangxi University of Science and Technology, Ganzhou
来源：
Qiche Gongcheng/Automotive Engineering | 2021年 / 43卷 / 08期
关键词：
Air-gap magnetic field; Multi-objective optimization; Permanent magnet synchronous machine; Prototype experiment; Taguchi method;
D O I：
10.19562/j.chinasae.qcgc.2021.08.002
中图分类号：
学科分类号：
摘要：
In order to accurately and quickly obtain the air-gap flux density waveform, the equivalent magnetic circuit method is used to analyze and calculate the air-gap magnetic field of the inter permanent magnet synchronous machine (IPMSM) with a double-layer permanent magnet structure. Considering the influence of the stator slotting effect, the air-gap length is corrected by the improved Carter coefficient. To reduce waveform total harmonics distortions (THD) of air-gap magnetic flux density and torque ripple, a Taguchi method is introduced for multi-objective fast optimization design analysis for the motor cores. The multivariable and multi-objective optimization design process of IPMSM with a double-layer permanent magnet structure is described using finite element simulation analysis and numerical calculation. The analysis shows that the output torque of the optimized double-layer IPMSM is improved by 2%, the torque ripple is reduced by 2.77%, the no-load air-gap magnetic density harmonic distortion rate is reduced by 4.28%. The experiments of the prototype have verified the reliability of the finite element and the validity of the theoretical analysis. © 2021, Society of Automotive Engineers of China. All right reserved.
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页码：1128 / 1135
页数：7
相关论文
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