不同转子极数混合励磁磁通切换永磁电机的研究  

Comparative Study of Hybrid Excited Switching Flux Permanent Magnet Machines With Different Rotor Poles

作　　者：宋晓华[1] 魏晓华 SONG Xiaohua;WEI Xiaohua(School of Information Science and Technology,Yanching Institute of Technology Langfang Hebei 065201,China;CRRC Tangshan Co.,Ltd.,Tangshan Hebei 064000,China)

机构地区：[1]燕京理工学院信息科学与技术学院,河北廊坊065201 [2]中车唐山机车车辆有限公司,河北唐山064000

出　　处：《微电机》2021年第5期14-19,26,共7页Micromotors

基　　金：时速160公里动力集中动车组(鼓形车体)研制(P91907)。

摘　　要：使用改进的混合励磁磁通切换电机(HESFMs)等效磁路模型结合二维有限元模型对定子极数为12,转子极数分别为10和14的HESFM的电磁性能进行了比较研究。通过对HESFMs的等效磁路模型进行研究发现,转子极数不同而造成电机电磁性能产生差异的本质原因是定转子之间气隙磁导分布的不同。在电机其他参数一定的情况下,定转子之间互气隙磁导越大,则电机的电磁性能越好,自气隙磁导越大,则电机的电磁性能越差。Electromagnetic performances of Hybrid Excited Switching Flux Permanent Magnet Machines(HESFMs)with 12 stator poles and 10 and 14 rotor poles were compared using the improved HESFMs equivalent magnetic circuit mode.In the research of equivalent magnetic circuit model of HESFMs,the fundamental reason for the different electromagnetic performance caused by the difference in number of rotor poles was the difference in air-gap conductance distribution between the stator and rotor.In the case of other machine parameters unchanged,the greater of mutual air-gap permeance between stator and rotor,the better the electromagnetic performance of HESFM,and the greater the self air-gap permeance,the worse the electromagnetic performance of HESFM.

关 键 词：混合励磁电机 转子极数 等效磁路模型 电磁性能 

分 类 号：TM351[电气工程—电机]