A novel reluctance magnetic gear for high-speed motor

Kohei Aiso, Kan Akatsu, Yasuaki Aoyama

研究成果: Article査読

30 被引用数 (Scopus)


Magnetic gears are expected to be a maintenance-free system with low-noise and low-vibration characteristics by a noncontact power transmission. However, conventional magnetic gears are not suitable for use with high-speed motors because the mechanical strength is weak due to the use of permanent magnets in a high-speed rotor. Additionally, the magnet eddy current losses in the high-speed rotor seriously decrease the gear's efficiency during a high-speed operation. This paper presents a novel reluctance magnetic gear that can realize the high-speed drive and high efficiency. The high-speed rotor of the proposed magnetic gear is constructed by only an iron core. Therefore, the structure is very simple and robust, adding that it is possible to rotate in the high-speed region. Moreover, the proposed magnetic gear achieves high efficiency in the high-speed region because the magnet eddy current loss in the high-speed rotor is not generated because no magnets are used. The downsizing of the system and a high efficiency power transfer are realized by applying the proposed reluctance magnetic gear.

ジャーナルIEEE Transactions on Industry Applications
出版ステータスPublished - 2019 5月 1

ASJC Scopus subject areas

  • 制御およびシステム工学
  • 産業および生産工学
  • 電子工学および電気工学


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