Flux-Switching Permanent Magnet Machine with Phase-Group Concentrated-Coil Windings and Cogging Torque Reduction Technique

Energies

Byung-Il Kwon¹  Jin-hee Lee¹  Jung-Woo Kwon¹  Wenliang Zhao² 

[1] Department of Electronic Systems Engineering, Hanyang University, Ansan-si 426-791, Gyeonggi-do, Korea;School of Electrical Engineering, Shandong University, Jinan 250061, Shandong, China;

关键词: flux-switching machine;    concentrated winding;    cogging torque;    permanent magnet machine;    finite element method;   

DOI  :  10.3390/en11102758

来源: DOAJ

【 摘 要 】

We herein propose a novel high-torque-density flux-switching permanent magnet machine (FSPMM) which adopted phase-group concentrated-coil (PGCC) winding and a cogging torque reduction technique. The PGCC winding was applied to increase the torque density. In order to maximize the torque of the FSPMM that utilizes the PGCC windings, the performance according to stator slots/rotor poles combinations were compared. A machine which had 12 stator slots and 13 rotor poles (12S13P) was selected for its top average torque value. However, the 12S13P PGCC FSPMM contains high cogging torque that must be reduced. The cogging torque reduction technique is applied, and the parameters used in the technique are further optimized to achieve the target average torque, while suppressing the cogging torque as much as possible. The optimization process was performed with a collaboration of the genetic algorithm and Kriging method. The analysis results of the optimized design exhibited huge reductions in the cogging torque and eventually in the torque ripple from the initial machine, with reasonable average torque reduction. The entire work was evaluated experimentally using a manufactured prototype.

【 授权许可】

Unknown