Efficiency contours and loss minimization over a driving cycle of a variable-flux flux-intensifying interior permanent magnet machine

@article{Fukushige2013EfficiencyCA,
  title={Efficiency contours and loss minimization over a driving cycle of a variable-flux flux-intensifying interior permanent magnet machine},
  author={Takashi Fukushige and Natee Limsuwan and Takashi Kato and Kan Akatsu and Robert D. Lorenz},
  journal={2013 IEEE Energy Conversion Congress and Exposition},
  year={2013},
  pages={591-597}
}
In this paper, experimental evaluations for the efficiency of a novel interior permanent magnet (IPM) machine with variable-flux characteristics using low coercive force magnets is presented. The variable-flux characteristics allow improving the efficiency of machine and also reducing the usage of rare-earth material in the high-coercive magnets, which are currently used for the IPM machines in electrified vehicles. A flux-intensifying interior permanent magnet (FI-IPM) type having positive… CONTINUE READING
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