中国电机工程学报2017，Vol.37Issue(21)：6146-6157,12.DOI:10.13334/j.0258-8013.pcsee.171152
定子永磁型磁通切换电机齿槽转矩及其抑制技术
Overview of Cogging Torque and Its Suppression Technologies in Flux-switching Permanent Magnet Machines
摘要
Abstract
Cogging torque is a load-independent component generated by the interaction between permanent magnet (PM) and slotted core, which especially exists in PM machines. As a family member of PM machines, flux-switching PM (FSPM) machine typically suffers from severe cogging torque due to its doubly salient structure and flux-concentration effect, causing undesired torque pulsations, acoustic noise and vibration, especially at low speed. In this paper, an overview on cogging torque and its suppression technique was conducted. The reason why cogging torque exists in FSPM machines was unveiled. Then, two general techniques utilized to study cogging torque, namely analytical method and finite element method, were introduced, and summarized with their advantage and disadvantage. Thereafter, different suppression techniques of cogging torque based on FSPM machine itself were reviewed and analyzed. Besides, the reduction technique during machine design stage and some auxiliary methods, like skewing, dummy slots, chamfering, etc., were also discussed and compared. Finally, the future trends on the cogging torque and suppression methods of FSPM machines were prospected.关键词
永磁电机/磁通切换/齿槽转矩/初始设计/抑制技术Key words
permanent magnet machine/flux-switching/cogging torque/initial design/suppression technology分类
信息技术与安全科学引用本文复制引用
朱晓锋,花为..定子永磁型磁通切换电机齿槽转矩及其抑制技术[J].中国电机工程学报,2017,37(21):6146-6157,12.基金项目
重点基础研究发展计划项目(973项目)(2013CB035605) （973项目）
中央高校基本科研业务费专项资金资助项目(2242016K41004).The National Key Basic Research Program of China (973 Program) (2013CB035605) （2242016K41004）
The Fundamental Research Funds for Central Universities (2242016K41004). （2242016K41004）
