Variable magnetization machine in electrified vehicle application

Takashi Fukushige, Takashi Kato, Kan Akatsu, Robert D. Lorenz

研究成果: Article査読

4 被引用数 (Scopus)

抄録

This paper describes variable magnetization machines, which are capable of varying the magnetization state of permanent magnets during operation. A pulse current on the stator windings creates a magnetic field on the rotor; this can be used to manipulate the magnetization state of the rotor magnets. Regulating the magnetization state according to the machine operating condition can reduce machine losses. A proof-of-principle machine was designed and fabricated. A series of experiments was conducted to evaluate the torque-speed envelope and efficiency contours of the fabricated machine. A full-scale machine was then designed with a modified magnetic circuit for application to an electric vehicle and evaluated using finite element analysis. A control strategy for the magnetization state during machine operation is proposed, and the losses during a driving cycle with the strategy were evaluated.

本文言語English
ページ(範囲)922-928
ページ数7
ジャーナルIEEJ Transactions on Industry Applications
135
9
DOI
出版ステータスPublished - 2015 9 1

ASJC Scopus subject areas

  • 産業および生産工学
  • 電子工学および電気工学

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