多边形转子磁轭永磁同步电机空载气隙磁场解析计算  

Analytic Calculation of No-load Air-gap Magnetic Fields of Polygonal Rotor Magnetic Yoke Permanent Magnet Synchronous Motors

作　　者：李灏淳 李立毅[1] 于吉坤[1] 曹继伟[1] 王凯思源 裴根极 LI Haochun;LI Liyi;YU Jikun;CAO Jiwei;WANG Kaisiyuan;PEI Genji(School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China)

机构地区：[1]哈尔滨工业大学电气工程及自动化学院

出　　处：《中国电机工程学报》2018年第11期3354-3364,共11页Proceedings of the CSEE

基　　金：伺服驱动及电机测试规范、标准研究与测试平台(2012ZX04001051)~~

摘　　要：该文利用分区域方法对多边形转子磁轭永磁同步电机的空载气隙磁场进行了解析推导。该方法基于磁场连续性定理,将磁场的边界条件和交界条件相结合,在忽略磁饱和的条件下,利用不规则磁轭半径函数和偏心永磁体半径函数求解空载气隙磁场。将该方法的计算结果与有限元计算结果相对比,两者吻合较好,证明了该方法可以准确有效地计算多边形转子磁轭永磁同步电机的空载气隙磁场。This paper presents an analytical method on the calculation of no-load air-gap magnetic fields in a permanent magnet synchronous motor with polygonal rotor magnetic yoke by the use of dividing the region into parts. This method is based on the continuity theorem of magnetic flux, and under the condition of neglecting magnetic saturation. The irregular radius function of rotor magnetic yoke and the radius function of the eccentric permanent magnet were used to solve the calculation of no-load air-gap magnetic fields through combing the boundary conditions with the interface conditions of magnetic fields. Compared to the calculation results of finite element analysis （FEA）, this method can agree well with FEA, which verifies that this method is capable to calculate no-load air-gap magnetic fields in a permanent magnet synchronous motor with polygonal rotor magnetic yoke accurately and effectively.

关 键 词：永磁同步电机 空载气隙磁场 多边形转子磁轭 转子磁轭半径函数 永磁体半径函数 

分 类 号：TM71[电气工程—电力系统及自动化]