永磁同步电机转子磁极优化技术综述  

An Overview of Rotor Pole Optimization Techniques for Permanent Magnet Synchronous Machines

作　　者：王凯[1] 孙海阳 张露锋 刘闯[1] 诸自强[2] 

机构地区：[1]南京航空航天大学自动化学院,江苏省南京市211106 [2]英国谢菲尔德大学

出　　处：《中国电机工程学报》2017年第24期7304-7317,共14页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51607089);江苏省自然科学基金项目(BK20150744)~~

摘　　要：永磁同步电机的电磁转矩、转矩波动、电磁振动与噪声等电机性能与气隙磁密波形密切相关。减小气隙磁密中的谐波含量能够有效地削弱齿槽转矩、抑制转矩脉动,减小电机振动,提升电机的整体性能。对表贴式和内置式永磁同步电机来说,可以分别通过优化永磁体形状和转子表面铁心形状(统称为转子磁极优化技术)来减小气隙磁密中的谐波含量。该文回顾并总结了近年来国内外学者在永磁同步电机转子磁极优化技术方面所进行的研究工作,将不同的转子磁极优化技术进行归类,比较其优缺点。最后探讨了转子磁极优化技术尚存在的一些问题和未来发展的主要方向。The electromagnetic performance of permanent magnet synchronous machines（PMSM）, such as the electromagnetic torque, the torque ripple, and the noise and vibration, is related to the waveform of the airgap flux density. Reducing harmonic contents of the airgap flux density can effectively mitigate the cogging torque, suppress the torque ripple, and decrease the noise and vibration level of the machine. For the surface-mounted permanent magnet（SPM） and interior permanent magnet（IPM） synchronous machines, the harmonic contents in the airgap flux density can be reduced by optimizing the permanent magnet on the rotor or by optimizing the rotor core shape（rotor pole optimization techniques）, respectively. This paper overviewed and summarized domestic and abroad research of the rotor pole optimization techniques of the PM machines in recent years. Finally, the future developments of the rotor pole optimization techniques were discussed.

关 键 词：永磁同步电机 转子磁极优化技术 齿槽转矩 转矩纹波 振动和噪声 

分 类 号：TM351[电气工程—电机]