Operational characteristics of an IPM-type bearingless motor with 2-pole motor windings and 4-pole suspension windings

Tatsuya Matsuzaki, Masatsugu Takemoto, Satoshi Ogasawara, Satoru Ota, Kazunobu Oi, Daiki Matsuhashi

研究成果

5 被引用数 (Scopus)

抄録

A bearingless motor (BelM) integrates the characteristics of an electric motor and a magnetic bearing. Typically, a surface-mounted permanent magnet (SPM)-type BelM with a ring magnet magnetized in parallel is employed for high-speed operation. It is noteworthy that a carbon fiber bandage is needed to fix the ring magnet. However, when an SPM-type BelM is applied to a high-output motor, it becomes difficult to generate sufficient suspension force because of the wide magnetic gap arising from the carbon fiber bandage and the ring magnet. In addition, the manufacturing cost for the large-scale ring magnet and the carbon fiber bandage is high. Therefore, to realize a high-output and high-speed BelM at a low cost, we have focused on an interior permanent magnet (IPM)-type BelM with 2-pole motor windings and 4-pole suspension windings. Moreover, a rotor structure for suppressing suspension force ripple arising in the IPM-type BelM has been proposed based on three-dimensional finite element analysis. In this study, a prototype of the IPM-type BelM with the proposed rotor structure is produced. Experiments with this prototype show that the proposed rotor structure is effective in reducing suspension-force ripple. Additionally, the operational characteristics of the prototype are shown in detail.

本文言語English
ホスト出版物のタイトル2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
出版社Institute of Electrical and Electronics Engineers Inc.
ページ3886-3894
ページ数9
ISBN(電子版)9781467371506
DOI
出版ステータスPublished - 10月 27 2015
外部発表はい
イベント7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 - Montreal
継続期間: 9月 20 20159月 24 2015

出版物シリーズ

名前2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015

Other

Other7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015
国/地域Canada
CityMontreal
Period9/20/159/24/15

ASJC Scopus subject areas

  • エネルギー工学および電力技術
  • 電子工学および電気工学

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