表贴式永磁同步电机永磁体偏心气隙磁场解析  

Analytic Calculation of Air-Gap Magnetic Field of Surface Permanent Magnet Synchronous Motors with Eccentric Magnet Pole

作　　者：金永星 王爱元[1] 孙健 王涛 JIN Yongxing;WANG Aiyuan;SUN Jian;WANG Tao(School of Electrical Engineering,Shanghai Dianji University,Shanghai 201306,China)

机构地区：[1]上海电机学院电气学院

出　　处：《电机与控制应用》2019年第4期77-81,91,共6页Electric machines & control application

摘　　要：采用分区域的方法对表贴式永磁同步电机磁极偏心的气隙磁场进行推导解析。将求解区域分为永磁体区域、气隙区域、定子槽区域和基于分离变量法利用各区域的边界条件得出相关系数,并在计及永磁体偏心的情况下求解电机气隙磁场。解析模型能够计算电机空载和负载气隙磁场的分布。将解析模型计算结果与有限元分析结果进行对比,发现所建立的解析模型具有较高的准确度。An analytical method for the calculation of air-gap magnetic fields in a surface permanent magnet synchronous motor with eccentric magnet pole by dividing the region into parts was presented. The solution area was divided into permanent magnet region, air gap region, and stator slot region. Based on the separation variable method, the correlation coefficient was obtained by using the boundary conditions of each region. The analytic model could calculate the distribution of no-load and load magnetic fields with eccentric magnet pole. The calculation results of the analytical model were compared with those of the finite element analysis. The results showed that the analytical model had high accuracy.

关 键 词：表贴式永磁同步电机 永磁体偏心 气隙磁场 

分 类 号：TM351[电气工程—电机]