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1999 Fiscal Year Final Research Report Summary

Development of Fully Superconducting Thrust Linear Actuator Using Temperature Superconductors

Research Project

Project/Area Number 09555086
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 電力工学・電気機器工学
Research InstitutionYokohama National University

Principal Investigator

TSUKAMOTO Osami  Yokohama Nat'l Univ., Faculty of Eng., Professor, 工学部, 教授 (30017975)

Co-Investigator(Kenkyū-buntansha) SATO Kenichi  Sumitomo Electric Inst. Lts. Basic Tech. Lab., General Manager, 大阪研究所, 超伝導研部長
AMEMIYA Naoyuki  Yokohama Nat'l Univ., Faculty of Eng., Associate Professor, 工学部, 助教授 (10222697)
KAWAMURA Atsuo  Yokohama Nat'l Univ., Faculty of Eng., Professor, 工学部, 教授 (80186139)
平井 敦之  安川電気, メカトロ事業部, 課長(研究職)
HIRAI Junji  Ysukawa Electic Co., Mechatronics Business G., Manager
Project Period (FY) 1997 – 1999
KeywordsHTS linear actuator / YBCO bulk / Bi / Ag sheathed tape / HTS coil / Direct drive / 全高温超伝導
Research Abstract

In the project, we studied and developed elementary technology for fully superconducting linear actuators with high temperature superconducting (HTS) primary windings and a thruster made of HTS bulks.
An electric direct-drive linear actuator with high thrust force has great potential needs in the field of industrial automation. Rapid and exact force control is possible by the electric direct-drive system, which is difficult by other methods such as hydraulic system and gear-and motor system. To obtain high thrust force using an electric direct-drive system of copper windings, however, current density of the windings should be very high and the joule heating in the windings becomes very high. Therefore, the actuator needs a large capacity power supply and a large size water cooling system. On the other hand, the fully superconducting actuator can be more compact and have higher thrust force with much smaller power loss than the copper actuator. It only needs small size power supply and the cooling system can be much smaller than the water cooling system for the copper actuator.
We made a model actuator with a primary winding wound of Bi/Ag sheathed tape and thruster with a YBCO bulk and studied basic of thrust force.
We made an analytical model to calculate the thrust force and showed the validity of the analysts. We also studied AC loss characteristics of the primary windings and the bulk superconductors which are important data for designing the actuator. We developed a method to magnetize a bulk array with alternative polarity for the thruster and proved the method worked well.

  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] A. Kobayashi: "Development of Fully superconducting Liner Actuator with bi/Ag Sheathed Type Windings and YBCO Bulk Thruster"Advances in superconductivity XI. 11. 1365-1368 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 小林敦之: "高温全超電導リニアアクチュエータモデルの推力試験"電気学会全国大会講演論文集. (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 小林敦之: "高温全超電導リニアアクチュエータの一次巻線の電流電圧特性"電気学会研究会資料・超電導応用電力機器研究会. 59-62 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] O. Tsukamoto: "Magnetization of HTS bulk-array with alternate polarities for linear superconducting actuator"To be presented at ICMC July 2000. (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] A. Kobayshi, O. Tsukamoto, K.Hayashi, K, Ohmatsu, K. Sato: "AC loss characteristics of Bi/Ag sheathed tape coil"Ref. the society for the study of IEEJ. ASC-98-36. 99-102 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] A. Kobayshi, O. Tsukamoto, M. Taguchi, K.Hayashi, K, Ohmatsu, K. Sato: "V-I characteristics of primary windings of fully HTS linear actuator"Ref. the society for the study of IEEJ. ASC-99-. (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] A. Kobayshi, O. Tsukamoto, N, Amemiya, S. Hahakura, K, Ohmatsu, K. Sato: "AC loss of Bi/Ag sheated tape coil"Proc. of Cryogenics Eng.. 58. 143 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] A. Kobayshi, O. Tsukamoto, N, Amemiya, S. Hahakura, K, Ohmatsu, K. Sato: "Thrust force test of fully HTS model linear actuator"Proc. of IEEI 1999. (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] A. Kobayshi, O. Tsukamoto, S. Hahakura, K, Ohmatsu, and K. Sato: "Development of Fully Superconducting Linear Actuator with Bi/Ag Sheathed Tape windings and YBCO Bulk Thruster"Adv. in Superconductor XI. Vol. 11. 1365-1368 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] O. Tsukamoto: "Magnetization of HTS bulk-array with alternate polarities for linear supercondunting actuator"To be presented at ICMC, July. (2000)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2001-10-23  

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