A Novel Bearingless Motor Drive Technology for Energy-Saving

• Project/Area Number: 17H04916
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Tokyo Denki University (2019); Tokyo Institute of Technology (2017-2018)
• Principal Investigator: Sugimoto Hiroya 東京電機大学, 工学部, 准教授 (60613552)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥23,660,000 (Direct Cost: ¥18,200,000、Indirect Cost: ¥5,460,000); Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2018: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000); Fiscal Year 2017: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
• Keywords: ベアリングレスモータ / 磁気軸受 / 永久磁石モータ / 高速モータ / 省エネルギー / 1軸制御形 / シングルドライブ / 高効率 / ベアリングレス化 / 磁気支持

Outline of Final Research Achievements

A novel bearingless motor drive system has been developed for improving energy-saving of bearingless motors. The proposed high-speed single-drive bearingless motor has possibility of high efficiency because the copper loss is reduced. The prototype machine and the dedicated controller have been developed and tested. In the experimental results, high rotational speed up to 30,000 r/min and high efficiency have been successfully demonstrated.

Academic Significance and Societal Importance of the Research Achievements

温室効果ガス排出量削減および省エネルギー化において，モータの高効率化は必要不可欠である。一方，一般的なベアリング付きモータは，機械的な接触があるため，小形・高速化と高効率化の間にはトレードオフがあり両立は困難である。本研究成果は，従来技術では実現困難であったモータの小形・高速化と高効率化を両立する新しいベアリングレスモータドライブシステムの有効性を実証した点であり，学術的および社会的価値が高い。

Research Products

• [Journal Article] Parameter Identification of Current-Force Factor and Torque Constant in Single-Drive Bearingless Motors With Back EMF (2019)
  • Author(s): Hiroya Sugimoto, and Akira Chiba
  • Journal Title: IEEE Transactions on Industry Applications Volume: vol. 55, no. 5 Issue: 5 Pages: 4754-4761
  • DOI: 10.1109/tia.2019.2926673
  • Peer Reviewed
• [Journal Article] Parameter Identifications of Current-Force Factor and Torque Constant in Single-Drive Bearingless Motors (2018)
  • Author(s): Hiroya Sugimoto, and Akira Chiba
  • Journal Title: 2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Volume: - Pages: 3627-3631
  • DOI: 10.23919/ipec.2018.8507407
• [Journal Article] Torque Density Improvement of a One Axis Actively Positioned Single-Drive Bearingless Motor (2018)
  • Author(s): Theeraphong Srichiangsa, Hiroya Sugimoto, and Akira Chiba
  • Journal Title: 2018 IEEE Energy Conversion Congress and Exposition (ECCE) Volume: - Pages: 6908-6913
  • DOI: 10.1109/ecce.2018.8557413
• [Journal Article] Experimental Results Passing Through Critical Speeds of Radial and Tilting Motions in a One-Axis Actively Positioned Single-Drive Bearingless Motor (2018)
  • Author(s): Hiroya Sugimoto, and Akira Chiba
  • Journal Title: 2018 IEEE Energy Conversion Congress and Exposition (ECCE) Volume: - Pages: 4392-4397
  • DOI: 10.1109/ecce.2018.8558121
• [Presentation] Parameter Identifications of Current-Force Factor and Torque Constant in Single-Drive Bearingless Motors (2018)
  • Author(s): Hiroya Sugimoto
  • Organizer: 2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)
  • Int'l Joint Research
• [Presentation] Torque Density Improvement of a One Axis Actively Positioned Single-Drive Bearingless Motor (2018)
  • Author(s): Theeraphong Srichiangsa
  • Organizer: 2018 IEEE Energy Conversion Congress and Exposition (ECCE)
  • Int'l Joint Research
• [Presentation] Experimental Results Passing Through Critical Speeds of Radial and Tilting Motions in a One-Axis Actively Positioned Single-Drive Bearingless Motor (2018)
  • Author(s): Hiroya Sugimoto
  • Organizer: 2018 IEEE Energy Conversion Congress and Exposition (ECCE)
  • Int'l Joint Research
• [Presentation] 冷却ファン用1軸制御ベアリングレスモータのジャイロ効果と傾き方向の安定性 (2017)
  • Author(s): 杉元紘也，千葉明
  • Organizer: 電気学会MAG/MD/LD合同研究会
• [Presentation] Comparison of Bearing Loss and Magnetic Suspension Power in Single-Drive Bearingless Motor (2017)
  • Author(s): Hiroya Sugimoto
  • Organizer: IEEE Power & Energy Society General Meeting 2017
  • Int'l Joint Research