Effective Methods of Reducing Cogging Torque in Fluz Reversal Machine
For permanent-magnets on the stator and salient structure of both the stator and the rotor, Flux Reversal Machine (FRM) has notable cogging torque inevitably. The cogging torque causes vibration and acoustic noise, which are detrimental to the motor performance, especially in low speed and where need operate smoothly and steadily, even affect normal working. In this paper, two new methods are proposed to reduce the cogging torque of FRM, Segment Rotor method and Pairing Stator poles along with Segment Rotor method. Analyzed by finite element method, it proved that these two methods reduce cogging torque effectively. Moreover, they do not cause inductive electromotive force reduced and reserve the advantages of FRM. These two methods can also be carried out easily in manufacture process. Hence, these are feasible, economical and effective methods and will be applied and generalized in industry in the future.
cogging torque FEM fluz reversal machine magnetic path design rare earth permanent magnet
ZHAO Wei-you CHEN Yi-guang SHEN Yong-huan XING Sheng-zhi
College of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China
国际会议
北京
英文
444-449
2006-08-29（万方平台首次上网日期，不代表论文的发表时间）