磁啮合双转子永磁电机齿槽转矩分析

摘要

Cogging torque is an inherent problem of slotted motors,which must be weakened or eliminated in the motor design and manufacturing.Based on ANSYS Maxwell software,the simulation model is established for magnetic-geared double-rotor perma-nent magnet motor.The influences of different motor parameters on the cogging torque are analyzed,and the factors influencing the cogging torque of magnetic-geared motor are studied to reduce the cogging torque and the interference.By comprehensive con-sidering these influencing factors and selecting appropriate motor parameters,a three-dimensional model is constructed and being processed into a prototype.Then the prototype test bench is set up and corresponding tests on cogging torque are conducted.Re-sults show that the measured cogging torque is small.The research indicates that choosing a reasonable method can effectively suppress the cogging torque of the magnetic-geared motor.%齿槽转矩是有槽电机的一个固有问题,在电机设计和制造中必须削弱或消除齿槽转矩.本文基于ANSOFT Maxwell软件对磁啮合双转子永磁电机建立仿真模型,分析不同电机参数对齿槽转矩的影响,研究磁啮合电机齿槽转矩影响因素,减小齿槽转矩,降低干扰.综合磁啮合双转子永磁电机齿槽转矩的影响因素,选择合适的电机参数建立三维模型,把三维模型加工成样机,对样机进行实验台的搭建与齿槽转矩的测试,测试得到的齿槽转矩的数值很小.研究表明,选择合理的方法可以有效抑制磁啮合电机的齿槽转矩.