Influence of Slot Openings and Tooth Profile on Cogging Torque in Axial-Flux PM Machines

@article{Wanjiku2015InfluenceOS,
  title={Influence of Slot Openings and Tooth Profile on Cogging Torque in Axial-Flux PM Machines},
  author={John Wanjiku and M. A. Khan and Paul S. Barendse and Pragasen Pillay},
  journal={IEEE Transactions on Industrial Electronics},
  year={2015},
  volume={62},
  pages={7578-7589}
}
Slotted axial-flux machines have excellent power and torque densities. However, it is difficult to reduce their cogging torque due to the complexity associated with implementing classical techniques. In this paper, slot-opening widths and tooth profiles will be shown to be significant in mitigating cogging torque in these machines. In particular, varying the slot opening reduced it by 52%, whereas a parallel-tooth (rectangular) profile lowered it by 24%, when compared with a conventional… CONTINUE READING
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