双C型定子横向磁通永磁电机的优化设计  

Optimization Design of A Transverse Flux Permanent Magnet Motor With Double-C Stator

作　　者：刘福贵[1] 李宁宁 杨乾坤[1] 罗丹 LIU Fu-gui;LI Ning-ning;YANG Qian-kun;LUO Dan(School of Electrical Engineering,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]河北工业大学电气工程学院,天津300130

出　　处：《微特电机》2020年第6期14-16,20,共4页Small & Special Electrical Machines

基　　金：国家自然科学基金青年科学基金项目(51607157);天津市自然科学基金项目(15JCYBJC16400)。

摘　　要：介绍了一种新型横向磁通永磁电机的工作原理,并分析了电机的结构特点。通过Maxwell软件建立该横向磁通永磁电机的三维有限元模型,并对电机在运行状态下的电磁分布进行仿真,计算永磁体涡流损耗平均值。仿真结果显示,定子与转子间气隙存在明显的漏磁现象,对定子形状进行改进来减小漏磁,并通过计算表明,改进后电磁转矩增大了27.3%;对永磁体涡流损耗进行了分析,提出在转子内侧添加铜层来减小永磁体涡流损耗的方法,并通过设置变量计算出该方案的最佳铜层厚度。The working principle of a new type of transverse flux permanent magnet motor is introduced,and the structural characteristics of the motor are analyzed.The 3D finite element model of the transverse flux permanent magnet motor is established by Maxwell software.The electromagnetic distribution of the motor in the running state is simulated and the average eddy current loss of the permanent magnet was calculated.The simulation results show that there is obvious magnetic flux leakage between the stator and the rotor.The shape of the stator is improved to reduce the magnetic flux leakage,and the calculated electromagnetic torque is increased by 27.3%.The eddy current loss of the permanent magnet is analyzed.A method of reducing the eddy current loss of the permanent magnet is proposed by adding a copper layer inside the rotor,and the optimal copper layer thickness of the scheme is calculated by setting the variables.

关 键 词：横向磁通永磁电机 双C型定子聚磁式转子横向永磁电机 电磁转矩 涡流损耗 电磁屏蔽原理 变量设置 

分 类 号：TM351[电气工程—电机]