表贴式永磁游标电机电磁特性和实验验证  

Electromagnetic Characteristics and Experiment Validation of a Surface Permanent Magnet Vernier Machine

作　　者：王伟炳[1] 邓孝华 WANG Weibing;DENG Xiaohua(School of Power Engineering,Nanjing Institute of Technology,Nanjing 211167,China)

机构地区：[1]南京工程学院电力工程学院,南京211167

出　　处：《微电机》2023年第9期44-49,共6页Micromotors

基　　金：中国博士后科学基金(2018M632201);江苏省高等学校自然科学基金(20KJA470004)。

摘　　要：为验证表贴式永磁游标电机高转矩密度的基本原理,基于表贴式永磁游标电机基本方程的分析,研究了电机关键参数对转矩的影响。设计了电机参数,给出了结构示意图,根据定子槽数和极对数,分析了槽电动势星形图,并给出了绕组连接图。基于二维有限元模型深入分析了电机的电磁特性,包括空载磁链、空载电动势、两种励磁源单独作用时的气隙磁密、齿槽转矩和电磁转矩。制作了永磁游标电机实验样机,对其空载反电势进行了测试。仿真和实验结果验证了理论分析的正确性和二维有限元模型的准确性,为永磁游标电机的精确控制提供了有力支撑。In order to verify the basic principle of the high torque density of the surface permanent magnet vernier machine,the effect of the key parameters on torque was researched based on the analysis of the basic equations of the surface permanent magnet vernier machine.The parameters of the machine were designed and the structure diagram was given.According to the number of stator slots and the number of pole pairs,electromotive force of slot star diagram was analyzed and the winding connection diagram was given.Based on the two-dimensional finite element model,the electromagnetic characteristics of the machine were analyzed in depth,including no load flux linkage,no load electromotive force,air gap flux density when two excitation sources act respectively,cogging torque and electromagnetic torque.The experiment prototype of permanent magnet vernier machine was made,and its no load back-EMF was tested.The simulation and experiment results verify the correctness of the theoretical analysis and the accuracy of the two-dimensional finite element model,which provides a powerful support for the precise control of the permanent magnet vernier machine.

关 键 词：永磁游标电机 磁场调制 气隙磁密 空载特性 转矩特性 

分 类 号：TM351[电气工程—电机]