The Characteristics Analysis and Cogging Torque Optimization of a Surface-Interior Permanent Magnet Synchronous Motor

Jikai Si; Suzhen Zhao; Lufeng Zhang; Ruiwu Cao; Wenping Cao

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The Characteristics Analysis and Cogging Torque Optimization of a Surface-Interior Permanent Magnet Synchronous Motor

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摘要

This paper proposes optimal stator skewed slot analytical method for cogging torque reduction in surface-interior permanent magnet synchronous motor(SIPMSM)and analyzes the characteristics of SIPMSM.The series-parallel equivalent magnetic circuit models(EMCMs)of SIPMSM is built based on the characteristics of magnetic circuits,which is used to design the basic electromagnetic parameters of SIPMSM.Analytical expressions of cogging torque are derived from applying analytical techniques.Stator skewed slot for cogging torque minimum is adopted,and the stator skewed slot pitch is confirmed based on the analytical expressions of the resultant cogging torque.The cogging torque,torque ripple,back electromotive force(back-EMF),power-angle characteristics,efficiency and power factor of SIPMSM are analyzed by establishing 3-dimensional finite element model(3-D-FED)of SIPMSM with stator skewed slot and straight slot.It is shown that the comprehensive performance of optimized SIPMSM is improved as confirmed by finite element analysis and analytical calculation results.

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来源
《中国电气工程学报(英文)》 |2018年第004期|P.41-47|共7页
作者
Jikai Si; Suzhen Zhao; Lufeng Zhang; Ruiwu Cao; Wenping Cao;
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作者单位

College of Electric Engineering Zhengzhou University Zhengzhou 450000 China;

School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo 454003 China;

School of Automation Nanjing University of Aeronautics and Astronautics Nanjing 211106 China;

School of Automation Nanjing University of Aeronautics and Astronautics Nanjing 211106 China;

School of Engineering and Applied Science Aston University Birmingham B47ET UK;

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原文格式 PDF
正文语种 chi
中图分类数学分析;
关键词
Surface-interior permanent magnet synchronous motor(SIPMSM); cogging torque; stator skewed slot; three-dimensional finite element model(3-D-FED);

The Characteristics Analysis and Cogging Torque Optimization of a Surface-Interior Permanent Magnet Synchronous Motor

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