双气隙磁场调制式永磁电机气隙磁场仿真分析与优化设计  

Theoretical Analysis and Optimal Design of Air-gap Field for Double Air-gap Field Modulation Permanent Magnet Motor

作　　者：贾海媛 王刚 JIA Haiyuan;WANG Gang(School of Electrical Power,Inner Mongolia University of Technology,Hohhot 010080,China)

机构地区：[1]内蒙古工业大学电力学院,呼和浩特010080

出　　处：《微电机》2024年第11期24-28,39,共6页Micromotors

基　　金：内蒙古自治区直属高校基本科研业务费项目(JY20220194)。

摘　　要：磁场调制式永磁电机通过磁场调制效应实现恒定转矩的输出,具有转矩密度高的优点,本文介绍了该类型电机的工作原理及磁场调制过程,对磁场调制式永磁电机在不同弧长的调制单元的调制效应进行了仿真分析,研究了不同弧长系数时电机的空载反电势及最大转矩。得到了调制单元弧长系数一般可取为0.4~0.7的结论,并对弧长系数为0.2、0.55和0.8的空载反电势及最大转矩进行了对比分析,对比结果表明,当弧长系数为0.55时,其空载反电势较弧长系数为0.2和0.8时分别增大了9.4%和3.2%,其低速转子最大转矩较弧长系数为0.2和0.8时分别增大了10.7%和54.5%。该研究对磁场调制式永磁电机的设计具有一定指导意义。The magnetic field modulation permanent magnet motor achieves constant torque output through the magnetic field modulation effect,which has the advantage of high torque density.In this paper,the working principle and the process of magnetic field modulation for this motor are introduced,the modulation effect of magnetic field modulation permanent magnet motor in different modulating units was simulated and analyzed,the back EMF and maximum torque of the motor with different are length coefficients were studied.It is concluded that the acre length coefficient of the modulation unit is generally to be 0.44~0.7,and the back EMF and maximum torque with acre length coefficient of 0.2、0.55 and 0.88 are compared and analyzed,the comparison results show that when the acre length coefficient is 0.55,the back EMF increases by 9.4%and 3.2%and the maximum torque of the low speed rotor increases by 10.7%and 54.5%respectively,compared with that when the acre length coefficient is 0.2 and 0.8.The research has guiding significance for the design of magnetic field modulation permanent magnet motor.

关 键 词：永磁电机 磁场调制 气隙磁场 弧长系数 有限元分析 

分 类 号：TM351[电气工程—电机] TM341