微特电机 ›› 2021, Vol. 49 ›› Issue (9): 21-23.

• 设计分析 • 上一篇    下一篇

分数槽切向磁路永磁电机齿顶漏磁分析

赵佳, 张树刚   

  1. 呼伦贝尔职业技术学院 机电工程系,呼伦贝尔 021000
  • 收稿日期:2021-05-27 出版日期:2021-09-28 发布日期:2021-09-29
  • 作者简介:赵佳(1989—),女,硕士,讲师,主要从事机电工程研究。
  • 基金资助:
    内蒙古自治区高等学校科学研究项目(NJZY19360)

Research on Tooth-Tip Leakage Flux of Fractional Slot PMSM with Tangential Magnetic Flux

ZHAO Jia, ZHANG Shu-gang   

  1. Department of Mechanical and Electrical Engineering, Hulunbuir Vocational Technical College, Hulunbuir 021000, China
  • Received:2021-05-27 Online:2021-09-28 Published:2021-09-29

摘要: 分数槽切向磁路永磁电机齿顶漏磁通对电机的波纹转矩、平均电磁转矩等性能产生较大影响。通过建立一个极下齿顶漏磁随定、转子相对位置变化的分析模型,研究齿顶漏磁的存在规律,得到一种新的齿顶漏磁计算方法。该方法引入单元电机齿顶漏磁概念,分析单元电机各磁极间齿顶漏磁通的关系,通过绘制齿顶漏磁曲线获得齿顶漏磁值。用有限元法仿真验证该模型的准确性。该方法计算简单,具有较好的计算精度和工作效率,为减少齿顶漏磁提供了简便算法。

关键词: 永磁同步电机, 切向磁路, 单元电机, 齿顶漏磁, 有限元分析

Abstract: Tooth-tip leakage flux of fractional slot PMSM with tangential magnetic flux has great influence on ripple torque, average electromagnetic torque and other performance parameters.A mathematical model of tooth-tip leakage flux varying with the relative position of stator and rotor under a pole was established and tooth-tip magnetic flux leakage was studied to acquire a new method of tooth-tip magnetic flux leakage calculation. The method researched the relationship between the tooth-tip leakage fluxes of a unit motor and the tooth-tip leakage flux of a unit motor could be obtained by drawing the curve of tooth-tip leakage fluxes.The finite element method was used to simulate and verify the accuracy of the model. The method is simple to calculate, and has good calculation accuracy and work efficiency. It provides a simple algorithm for reducing tooth-tip leakage flux.

Key words: permanent magnet synchronous motor(PMSM), tangential magnetic flux, unit motor, tooth-tip leakage flux, finite element analysis

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