Influence of the Amount of Permanent-Magnet Material in Fractional-Slot Permanent-Magnet Synchronous Machines

@article{Sergeant2014InfluenceOT,
  title={Influence of the Amount of Permanent-Magnet Material in Fractional-Slot Permanent-Magnet Synchronous Machines},
  author={Peter Sergeant and Alex P. M. Van den Bossche},
  journal={IEEE Transactions on Industrial Electronics},
  year={2014},
  volume={61},
  pages={4979-4989}
}
The efficiency of permanent-magnet (PM) synchronous machines with outer rotor and concentrated windings is investigated as a function of the mass of magnets used, keeping the power, volume, and mechanical air-gap thickness constant. In order to be useful for electric vehicle motors and wind turbine generators, the efficiency is computed in wide speed and torque ranges, including overload. For a given type and amount of magnets, the geometry of the machine and the efficiency map are computed by… CONTINUE READING
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