一种车用双极性横向磁通永磁电动机  

Magnetic field of vehicle bipolar transverse-flux permanent magnet motor

作　　者：孙强[1] 张为堂[1] 花为[2] SUN Qiang;ZHANG Wei-tang;HUA Wei(Department of Electronic and Electrical Engineering,Hefei University,Hefei 230601,China;School of Electrical Engineering,Southeast University,Nanjing 210096,China)

机构地区：[1]合肥学院电子信息与电气工程系,安徽合肥230601 [2]东南大学电气工程学院,江苏南京210096

出　　处：《电机与控制学报》2018年第8期41-46,共6页Electric Machines and Control

基　　金：973项目(2013CB035605);国家自然科学基金优秀青年科学基金(51322705);安徽省自然科学基金(1508085ME87);合肥学院自然科学基金(06KY010ZR);安徽省高等学校自然科学研究(KJ2015B110590)

摘　　要：针对当前横向磁通永磁电机绕组磁链单极性影响电机出力进一步提高的问题,提出一种实现磁链双极性的横向磁通永磁电动机。该电机采用外转子型,电枢绕组和永磁体都位于定子上,磁通路径分析表明绕组匝链的磁通为双极性。基于电动机的基本结构和工作原理,依据电机设计理论推导出了电动机功率与尺寸之间关系式,采用有限元计算分析了电机主要尺寸对永磁磁链的影响。以此为依据确定了一台三相600 W样机的尺寸,利用有限元法对静态特性和瞬态特性进行了仿真计算,包括空载时电机磁场分布和绕组反电势,为了验证理论分析的正确性,最后对制作的600 W样机进行了实验验证,实验结果与理论分析具有很好的一致性。As for ordinary transverse-flux permanent-magnet motors,there is a problem that the flux unipolarity cannot make further improvement on the output power or torque.To slove the problem,the transverse-flux permanent-magnet motor with bipolar flux was proposed.The motor employs outer rotor and its armature windings and permanent magnets are located in the stator.The flux path analysis show that the winding flux is bipolar.According to the basic structure,working principle and the design theory of motor,relationship between motor power and its size was deduced,and influence of main dimensions of motor on permanent magnet flux linkage was analyzed through finite element method.The size of a three-phase 600 W prototype was determined,and its static and transient characteristics were simulated through finite element method including the magnetic field distribution and the back EMF at no load.For the correctness of the theoretical analysis,the experiment on the 600 W prototype was carried out and its results are in good agreement with the theoretical analysis.

关 键 词：双极性磁通 横向磁通永磁电动机 有限元法 外转子 磁通路径 

分 类 号：TM351[电气工程—电机]