A Consideration of Efficiency and Power Factor of IPM-type Magnetic-Geared Motor

K. Ito, K. Nakamura

研究成果: Article査読

抄録

Magnetic-geared motors (MGMs) have attracted attention since their torque density is superior to conventional electric motors. Among the types of MGMs, an interior permanent magnet (IPM) type has a feature of high efficiency because the IPM-type can reduce the eddy current loss in magnets. On the other hand, in the IPM-type MGM, the PM motor part and the MG part magnetically interact with each other, which is called the magnetic interaction. In a previous paper, the influence of the magnetic interaction on the output torque was investigated. However, the influence on the power factor and the efficiency has not been clarified yet. This paper studies the influence of the magnetic interaction on the power factor and the efficiency of the IPM-type MGM. The influence of the magnetic interaction on the power factor is discussed by deriving a voltage equation of IPM-type MGM. Moreover, the power factor and the efficiency are calculated and measured to clarify a suitable current phase from the viewpoint of a high-power-factor and high-efficiency drive.

本文言語English
ページ(範囲)16-21
ページ数6
ジャーナルJournal of the Magnetics Society of Japan
46
1
DOI
出版ステータスPublished - 2022

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 器械工学
  • 凝縮系物理学
  • 電子工学および電気工学

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