Rare earth reduction using a novel variable magnetomotive force flux-intensified IPM machine

Takashi Kato, Natee Limsuwan, Chen Yen Yu, Kan Akatsu, Robert D. Lorenz

研究成果: Article

74 引用 (Scopus)

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This paper presents a novel variable magnetomotive force flux-intensifying interior permanent-magnet (IPM) (VFI-IPM) machine, which uses only low-coercive force magnets to reduce usage of rare earth metals. The VFI-IPM machine is designed with a characteristic of Ld > Lq, which is typical for FI-IPM machines and uses low-coercive force magnets with magnetization level control. A theoretical magnet operating point analysis was conducted to investigate the design methodology. A proof-of-principle prototype machine was then designed based on these principles. Simulation and experimental results show that the VFI-IPM prototype can achieve a wide torque-speed envelope and variable torque-speed characteristics while not requiring high-coercive force magnets that would include far more expensive rare earth materials, such as dysprosium.

元の言語English
記事番号6607140
ページ(範囲)1748-1756
ページ数9
ジャーナルIEEE Transactions on Industry Applications
50
発行部数3
DOI
出版物ステータスPublished - 2014 1 1

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ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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