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Increase of quench protection performance and high current density winding in HTS coils with new plastic material

Research Project

Project/Area Number 16K06238
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Power engineering/Power conversion/Electric machinery
Research InstitutionSophia University

Principal Investigator

Takao Tomoaki  上智大学, 理工学部, 教授 (30245790)

Co-Investigator(Kenkyū-buntansha) 宮城 大輔  東北大学, 工学研究科, 准教授 (10346413)
塚本 修巳  上智大学, 理工学部, 客員教授 (30017975)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords超電導コイル / クエンチ保護 / クエンチ検出 / 超伝導コイル / 熱的安定性 / 高温超伝導コイル / 高温超伝導線 / 電気機器工学
Outline of Final Research Achievements

Results of this research project are summarized as follows. 1) Thermal behaviors of HTS wires in quenched coils were analytically studied, and an analytical method to study on conditions to protect HTS coil from damages caused by a quench were obtained. 2) Effectiveness of use of plastic materials of high thermal conductivity and negative thermal contraction co-efficient in the HTS coils was experimentally demonstrated. 3) A quench detection method was studied to increase the sensitivity of quench protection and its effectiveness was demonstrated. 4) Stability of HTS coil wound with conductors composed of multiple wires were investigated, and conditions of quench free were obtained.
Based on the above results, the methods to increase the winding-pack current density of the HTS coils were indicated.

Academic Significance and Societal Importance of the Research Achievements

HTSコイルのクエンチ保護条件の解析モデルについて、従来、明らかでなかった線の熱伝達特性のデータを実験により求め、解析によりクエンチ保護の指針を調べるための基礎を得た。また、プラスチック新材料の導入の有効性について実験的、解析的研究を行った。さらに先行研究で開発したクエンチ検出性能を改善する方法についてその有効性を検証した。複数線を束ねた導体の電磁気的振る舞いを明らかにし、コイルの安定性を改善する方法を示した。以上の点で、本研究成果は学術的な意義がある。
また、本研究結果により実用に耐えるHTSコイルシステム構成法を示すことが可能となり、HTS機器の実用化への道を拓いたことに社会的意義がある。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (11 results)

All 2018 2017 2016

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (9 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] Influence of High-Thermal-Conductivity Plastic With Negative Thermal Expansion Coefficient on Cooling Performance in Conduction-Cooled HTS Coils2018

    • Author(s)
      T. Takao, S. Suga, T. Takano, K. Kuboki,A. Yamanaka
    • Journal Title

      IEEE Transactions on Applied Superconductivity

      Volume: 28 Issue: 3 Pages: 4600304-4600304

    • DOI

      10.1109/tasc.2017.2777837

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Study on Heat Transfer Characteristics HTS Tapes of Epoxy-Impregnated Conduction-Cooled Coils Using Winding Pack Model2017

    • Author(s)
      Takahiro Ariyama, N. Matsusda, Ryuta Matsuo, Yoshiki Fuchida, Akane Kojima, Tomoaki Takao, Osami Tsukamoto, Takahiro Yamaguchi, Takeshi Kato
    • Journal Title

      IEEE Transactions on Applied Superconductivity

      Volume: 27 Issue: 4 Pages: 8800106-8800106

    • DOI

      10.1109/tasc.2016.2646324

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Insulative High Thermal Conduction Plastic for Increase of Stability in Conduction-Cooled HTS Coils2018

    • Author(s)
      H. Toriyama, K. Nakamura, T. Takano, K. Kuboki, G. Arisaka, T. Takao
    • Organizer
      27th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Insulative High Thermal Conduction Plastic for Increase of Stability in Conduction-Cooled HTS Coils2018

    • Author(s)
      K. Kuboki, G. Arisaka, T. Takao, T. Katayama
    • Organizer
      2018 Applied Superconductivity Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] HTSコイル用機能材料に向けた高熱伝導プラスチックの低温基礎特性2018

    • Author(s)
      菅祥大, 高野太郎, 窪木和哉, 高尾智明, 山中淳彦
    • Organizer
      電気学会,超電導機器研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] HTSコイル用機能材料に向けた高熱伝導プラスチックの低温基礎特性(その2)2018

    • Author(s)
      窪木和哉・菅祥大・高野太郎・高尾智明・山中淳彦
    • Organizer
      電気学会,全国大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Study on hot spot temperature limits of epoxyimpregnated coil wound of Bi/Ag sheathed wire to be safe from damages caused by quenches2017

    • Author(s)
      R. Matsuo, N. Matsuda, Y. Fuchida, A. Kojima, A. Nomoto, T. Takao, K. Nakamura, and O. Tsukamoto
    • Organizer
      European Conference on Applied Superconductivity 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 伝導冷却型HTSコイル用新構造材料の低温物性及び有用性の評価2017

    • Author(s)
      田中雄基,菅祥大,高野太郎,高尾智明,山中淳彦
    • Organizer
      電気学会超電導機器研究会
    • Place of Presentation
      新潟大学(新潟県,新潟市)
    • Related Report
      2016 Research-status Report
  • [Presentation] 伝導冷却型HTSコイルに向けた 高熱伝導プラスチックの低温特性評価2017

    • Author(s)
      高野太郎,田中雄基,菅祥大,高尾智明,山中淳彦
    • Organizer
      電気学会全国大会
    • Place of Presentation
      富山大学(富山県,富山市)
    • Related Report
      2016 Research-status Report
  • [Presentation] Heat Conduction Characteristics HTS Tapes of Conduction-cooled Coils2016

    • Author(s)
      T. Ariyama, R. Matsuo, N. Matsuda, T. Takao, O. Tsukamoto
    • Organizer
      Applied Superconductivity Conference
    • Place of Presentation
      コロラドコンベンションセンター(USA)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Influence of High Thermal Conduction Plastic on Thermal Stability in Cryogen-free HTS Superconducting Coil2016

    • Author(s)
      T. Takao, Y. Tanaka, S. Suga, T. Takano, O. Tsukamoto, A. Yamanaka
    • Organizer
      1st Asian International Cryogenic Materials Conference
    • Place of Presentation
      金沢歌劇座(石川県,金沢市)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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