Output Maximization of Salient-Pole Synchronous Machines by Using Additional Permanent Magnets

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  • Yamazaki Katsumi
    Department of Electrical, Electronics, and Computer Engineering, Chiba Institute of Technology
  • Tamiya Shuichi
    Department of Electrical, Electronics, and Computer Engineering, Chiba Institute of Technology
  • Shima Kazuo
    Department of Electrical and Electronic Engineering, Kanazawa Institute of Technology
  • Fukami Tadashi
    Department of Electrical and Electronic Engineering, Kanazawa Institute of Technology
  • Sato Masato
    Department of Electrical and Electronic Engineering, Kanazawa Institute of Technology

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Abstract

In this study, we investigate the output maximization of salient-pole synchronous machines by using small amount of Nd-Fe-B magnets. First, the mechanism of output increase by the additional magnets is revealed by using both finite element method and simple magnetic circuit. Then, the appropriate magnet shape and rotor core design are discussed. The experimental verification is carried out by using prototype machines. The advantages of the proposed design are confirmed.

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