基于气隙磁场调制理论的永磁同步电机磁场分析与特性对比  

Magnetic Field Analysis and Performance Comparison of Permanent Maguet Synchronous Motor Based on Air-Gap Field Modulation Theory

作　　者：刘亚平 胡青璞 刘朝阳 LIU Ya-ping;HU Qing-pu;LIU Chao-yang(Faculty of Electrical Engineering,Yellow River Conservancy Technical Institute,Kaifeng 475004,China;Puyang Branch of China Unicom,Puyang 457300,China)

机构地区：[1]黄河水利职业技术学院电气工程学院,开封475004 [2]中国联合网络通信濮阳分公司,濮阳457300

出　　处：《微特电机》2021年第5期25-30,共6页Small & Special Electrical Machines

摘　　要：从气隙谐波磁场的角度对具有相同尺寸参数的12槽4极整数槽分布绕组与6槽4极分数槽集中绕组永磁同步电机进行了综合对比。基于气隙磁场调制理论,建立了分布绕组与集中绕组永磁同步电机的气隙永磁磁场和电枢反应磁场模型,分析了分布绕组与集中绕组永磁同步电机气隙磁场特性,并通过有限元进行验证。基于气隙磁场特性,通过有限元分析了两种电机的齿槽转矩、空载反电动势、输出转矩及其随电流的变化、永磁体损耗及其随转子速度的变化。基于气隙谐波磁场总结了分布绕组与集中绕组永磁同步电机的优缺点。Comprehensive comparison of the 12-slot 4-pole integer slot distributed winding(ISDW)and the 6-slot 4-pole fractional slot concentrated winding(FSCW)PM synchronous machine with the same dimensions were conducted from the perspective of air-gap harmonic magnetic field.Based on air-gap field modulation theory,the analytical models of the air-gap permanent magnetic field and armature reaction magnetic field of the machines were established to analysis their characteristics which verified by finite dement method.According to the characteristics,the cogging torque,no-load back electromotive force,output torque and its variation with current,permanent magnet loss and its variation with rotor speed were predicted by finite dement method.The advantages and disadvantages of distributed winding and concentrated winding permanent magnet synchronous motors were summarized from the point of air-gap magnetic fields.

关 键 词：磁场调制理论 整数槽分布绕组 分数槽集中绕组 永磁同步电机 有限元法 谐波畸变率 

分 类 号：TM351[电气工程—电机]