铁氧体辅助同步磁阻电机转子优化设计  

Rotor Optimization Design of Ferrite Magnet-Assisted Synchronous Reluctance Motor

作　　者：刘万振 刘广强 林岩 姚丽 

机构地区：[1]丹佛斯(天津)有限公司,天津301700

出　　处：《微电机》2017年第2期17-20,共4页Micromotors

摘　　要：与同步磁阻电机相比,铁氧体辅助同步磁阻电机的转子中由于含有铁氧体,其磁路及饱和程度均发生了变化,因此不能简单的认为铁氧体辅助同步磁阻电机只是在同步磁阻电机基础上插入铁氧体,而需要结合铁氧体辅助同步磁阻电机的特点进行优化设计。本文基于有限元方法,针对铁氧体辅助同步磁阻电机转子结构进行了优化设计,以提高最大转矩电流比及削弱转矩波动。考虑到铁氧体的低温退磁特性,对铁氧体辅助同步磁阻电机的最大去磁电流进行了校核,并且针对铁氧体退磁问题进行了深入地研究。最后,基于上述研究提出了铁氧体辅助同步磁阻电机的相关设计准则,并且制作样机以验证电机设计的有效性。There are ferrite magnets in permanent magnet-assisted synchronous reluctance motor （PMaSynRM）, and its rotor magnetic path and saturation level are different from synchronous reluctance motor （ SynRM ）, so it is not considered that PMaSynRM is only based on optimized rotor geometry of SynRM with ferrite magnets added into rotor slits, and the rotor geometry of PMaSynRM needs to be reoptimized. In this paper, A PMaSynRM with ferrite magnets was investigated to maximize average torque ampere ratio and minimize torque ripple by using finite-element analysis. And because of the low-temperature demagnetization characteristics of ferrite, the maximum demagnetization current was checked. In addition, the issue on ferrite demagnetization was further discussed. Finally, basing on the above research some design rules were proposed and in order to verify the investigation, a PMaSynRM prototype was built.

关 键 词：铁氧体辅助同步磁阻电机 优化设计 转矩波动 铁氧体 不可逆退磁 

分 类 号：TM352[电气工程—电机]