Development of Interior Permanent Magnet Motors with Concentrated Windings for Reducing Magnet Eddy Current Loss

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  • Yamazaki Katsumi
    Dept. of E. E. C. E., Chiba Institute of Technology
  • Kanou Yuji
    Dept. of E. E. C. E., Chiba Institute of Technology
  • Fukushima Yu
    Dept. of E. E. C. E., Chiba Institute of Technology
  • Ohki Shunji
    Electronics and Power Electronics Engineering Division, Electronics Control Engineering Department, Electric Motor Engineering Group, Nissan Motor Co., LTD
  • Nezu Akira
    Electronics and Power Electronics Engineering Division, Electronics Control Engineering Department, Electric Motor Engineering Group, Nissan Motor Co., LTD
  • Ikemi Takeshi
    Electronics and Power Electronics Engineering Division, Electronics Control Engineering Department, Electric Motor Engineering Group, Nissan Motor Co., LTD
  • Mizokami Ryoichi
    Electronics and Power Electronics Engineering Division, Electronics Control Engineering Department, Electric Motor Engineering Group, Nissan Motor Co., LTD

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Other Title
  • 永久磁石渦電流損を低減した集中巻IPMモータの開発
  • エイキュウ ジシャク ウズデンリュウ ソン オ テイゲン シタ シュウチュウマキ IPM モータ ノ カイハツ

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Description

In this paper, we present the development of interior magnet motors with concentrated windings, which reduce the eddy current loss of the magnets. First, the mechanism of the magnet eddy current loss generation is investigated by a simple linear magnetic circuit. Due to the consideration, an automatic optimization method using an adaptive finite element method is carried out to determine the stator and rotor shapes, which decrease the eddy current loss of the magnet. The determined stator and rotor are manufactured in order to proof the effectiveness by the measurement.

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