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New developments of remountable high-temperature superconducting magnet by introducing a maintenance viewpoint

Research Project

Project/Area Number 17H03507
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Nuclear fusion studies
Research InstitutionTohoku University

Principal Investigator

Ito Satoshi  東北大学, 工学研究科, 准教授 (60422078)

Co-Investigator(Kenkyū-buntansha) 野上 修平  東北大学, 工学研究科, 准教授 (00431528)
田村 仁  核融合科学研究所, ヘリカル研究部, 准教授 (20236756)
西島 元  国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主幹研究員 (30333884)
柳 長門  核融合科学研究所, ヘリカル研究部, 教授 (70230258)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2019: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2017: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Keywords分割型高温超伝導マグネット / ヘリカル型核融合炉 / 超伝導クエンチセンサー / プラズマ・核融合 / 超伝導材料・素子 / 電磁・マグネット
Outline of Final Research Achievements

For maintenance and operation of remountable high-temperature superconducting magnet for fusion reactor, we conducted 1) Optimization of joint technique considering maintenance scenario, and 2) Development of condition-based maintenance technique using superconducting quench sensors. For 1), we proposed new joint structure based on results of stress condition at joint section of the magnet during fabrication and operation phases and those of mechanical testing of joint samples of REBCO high-temperature superconducting tapes. Then we achieved to avoid a joint resistance increase at reattaching process. For 2) we demonstrated that NbTi sensor can detect quench in a REBCO pancake coil. In addition, we showed that MgB2 and B-2212 sensors can detect quench under magnetic field produced by fusion magnets based on numerical analysis.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果により、これまで「建設」の観点で原理実証がなされてきた核融合炉用分割型高温マグネットに関する研究開発が、「保守・運用」の観点まで取り入れるフェーズにまで進んだ。マグネット構造解析と接合体の機械試験に基づいて接合部損傷の推定を行うための知見を得た他、事後保全に必要な再着脱技術の高度化にも成功した。早期のクエンチ検出技術の確立による高温超伝導応用機器の保護は、超伝導工学分野における最大の課題になっており、本研究で提案・開発した超伝導クエンチセンサは、核融合炉用高温超伝導マグネットだけでなく、多くの高温超伝導応用機器の課題に対する解を与えうるものである。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (40 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (3 results) Journal Article (10 results) (of which Peer Reviewed: 10 results,  Open Access: 5 results) Presentation (27 results) (of which Int'l Joint Research: 20 results,  Invited: 4 results)

  • [Int'l Joint Research] Karlsruhe Institute of Technology(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Karlsruhe Institute of Technology(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Karlsruhe Institute of Technology(Germany)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Investigation for Contact Interface of Mechanical Lap Joint Fabricated with High-Temperature Superconducting Conductor Using X-Ray Microtomography2020

    • Author(s)
      W. Chen, S. Ito, N. Yusa, H. Hashizume
    • Journal Title

      Plasma and Fusion Research

      Volume: 15 Issue: 0 Pages: 2405014-2405014

    • DOI

      10.1585/pfr.15.2405014

    • NAID

      130007840501

    • ISSN
      1880-6821
    • Year and Date
      2020-03-27
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Investigation of trade-off solution in mechanical edge joint of STARS conductors2020

    • Author(s)
      S. Sato, S. Ito, H. Hashizume
    • Journal Title

      Journal of Physics: Conference Series

      Volume: in press

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Progress in the Conceptual Design of the Helical Fusion Reactor FFHR-d12019

    • Author(s)
      N. Yanagi, T. Goto, J. Miyazawa, H. Tamura, Y. Terazaki, S. Ito, T. Tanaka, H. Hashizume, A. Sagara
    • Journal Title

      Journal of Fusion Energy

      Volume: 38 Issue: 1 Pages: 147-161

    • DOI

      10.1007/s10894-018-0193-y

    • NAID

      120007177032

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 核融合炉マグネットへの適用をめざした大電流高温超伝導導体の開発 ― 現在の状況と将来の展望 ―2019

    • Author(s)
      柳長門, 伊藤悟, 寺﨑義朗
    • Journal Title

      低温工学

      Volume: 54 Issue: 1 Pages: 10-22

    • DOI

      10.2221/jcsj.54.10

    • NAID

      130007596649

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mechanical Design Concept of Superconducting Magnet System for Helical Fusion Reactor2019

    • Author(s)
      H. Tamura, N. Yanagi, T. Goto, J. Miyazawa, T. Tanaka, A. Sagara, S. Ito, H. Hashizume
    • Journal Title

      Fusion Science and Technology

      Volume: in press Issue: 5 Pages: 384-390

    • DOI

      10.1080/15361055.2019.1603041

    • NAID

      120007177004

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of coil configuration parameters on the mechanical behavior of the superconducting magnet system in the helical fusion reactor FFHR2019

    • Author(s)
      H. Tamura, T. Goto, N. Yanagi, J. Miyazawa, T. Tanaka, A. Sagara, S. Ito, H. Hashizume
    • Journal Title

      Fusion Engineering and Design

      Volume: in press Pages: 586-589

    • DOI

      10.1016/j.fusengdes.2019.01.029

    • NAID

      120007177007

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fundamental Evaluations of Applicability of LTS Quench Detectors to REBCO Pancake Coil2019

    • Author(s)
      Shin Hasegawa, Satoshi Ito, Gen Nishijima, Hidetoshi Hashizume
    • Journal Title

      IEEE Transactions on Applied Superconductivity

      Volume: 29 Issue: 5 Pages: 9001305-9001305

    • DOI

      10.1109/tasc.2019.2900633

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comparison of shear strength and failure mechanisms of lap joint between REBCO tapes bonded by different joining techniques2018

    • Author(s)
      Luis Ernesto Aparicio, Satoshi Ito, Hidetoshi Hashizume
    • Journal Title

      Fusion Engineering and Design

      Volume: 136 Pages: 1196-1201

    • DOI

      10.1016/j.fusengdes.2018.04.101

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Numerical and Experimental Evaluations of the Quench Detection Performance of a YBCO/Nb-Tid Tape2018

    • Author(s)
      S. Hasegawa, S. Ito, H. Hashizume
    • Journal Title

      IEEE Transactions on Applied Superconductivity

      Volume: 28 Issue: 3 Pages: 4700605-4700605

    • DOI

      10.1109/tasc.2018.2795552

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Advanced high-temperature superconducting magnet for fusion reactors: Segment fabrication and joint technique2018

    • Author(s)
      S. Ito, H. Hashizume, N. Yanagi, T. Tamura
    • Journal Title

      Fusion Engineering and Design

      Volume: in press Pages: 239-246

    • DOI

      10.1016/j.fusengdes.2018.01.072

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] Topology optimization for superconducting magnet system in LHD-type helical fusion reactor FFHR-c12020

    • Author(s)
      H. Tamura, T. Goto, J. Miyazawa, T. Tanaka, N. Yanagi
    • Organizer
      10th ACASC/2nd Asian ICMC/CSSJ Joint conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigation on optimal designs of superconducting quench detectors for REBCO coils2020

    • Author(s)
      S. Hasegawa, S. Ito, G. Nishijima, H. Hashizume
    • Organizer
      10th ACASC/2nd Asian ICMC/CSSJ Joint conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 銅ジャケット付きREBCO積層導体の機械的エッジジョイントにおける接合抵抗の低減2019

    • Author(s)
      佐藤颯太郎, 伊藤悟, 橋爪秀利
    • Organizer
      2019年度春季(第98回)低温工学・超電導学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Investigation of trade-off solution in mechanical edge joint of STARS conductors2019

    • Author(s)
      S. Sato, S. Ito, H. Hashizume
    • Organizer
      14th European Conference on Applied Superconductivity (EUCAS 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Topology optimization for superconducting magnet system in helical fusion reactor2019

    • Author(s)
      H. Tamura, T. Goto, J. Miyazawa, T. Tanaka, N Yanagi,
    • Organizer
      14th European Conference on Applied Superconductivity (EUCAS 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of Nondestructive Evaluation Technique for Mechanical Lap Joint Fabricated with High-Temperature Superconducting Conductor Using X-ray Microtomography2019

    • Author(s)
      W. Chen, S. Ito, N. Yusa, H. Hashizume
    • Organizer
      28th International Toki Conference (ITC-28)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of Large-Current HTS Conductors for the Next-Generation Helical Fusion Experimental Device2019

    • Author(s)
      N. Yanagi, T. Mito, J. Miyazawa, Y. Onodera, N. Hirano, Y. Narushima, S. Matsunaga, S. Ito, H. Tamura, S. Hamaguchi, H. Hashizume, K. Takahata
    • Organizer
      28th International Toki Conference (ITC-28)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Topology optimization study for magnet support in helical fusion reactor2019

    • Author(s)
      H. Tamura, T. Goto, J. Miyazawa, T. Tanaka, N. Yanagi
    • Organizer
      28th International Toki Conference (ITC-28)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 次世代ヘリカル装置への適用をめざした大電流/高電流密度・高温超伝導導体の開発2019

    • Author(s)
      柳長門, 三戸利行, 宮澤順一, 小野寺優太, 平野直樹, 成嶋吉朗, 松永信之介, 伊藤悟, 田村仁, 濱口真司, 橋爪秀利, 高畑一也
    • Organizer
      プラズマ・核融合学会第36回年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] トポロジー最適化によるヘリカル型核融合炉用超伝導マグネットシステムの最適化設計2019

    • Author(s)
      田村仁, 後藤拓也, 宮澤順一, 田中照也, 柳長門
    • Organizer
      プラズマ・核融合学会第36回年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Development of Large-Current HTS Conductors for the Next-Generation Helical Fusion Experimental Device2019

    • Author(s)
      N. Yanagi, T. Mito, J. M, Y. Onodera, N. Hirano, Y. Narushima, S. Matsunaga, S. Ito, H. Tamura, S. Hamaguchi, H. Hashizume, K. Takahata
    • Organizer
      32nd International Superconductivity Symposium (ISS2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Progresses of HTS Magnet and Conductor Developments for the Helical Fusion Reactor and Next-Generation Fusion Experimental Devices2019

    • Author(s)
      N. Yanagi, T. Mito, J. M, Y. Onodera, N. Hirano, Y. Narushima, S. Matsunaga, S. Ito, H. Tamura, S. Hamaguchi, H. Hashizume, K. Takahata
    • Organizer
      12th Asia Plasma and Fusion Association Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 数値解析によるLTSクエンチ検出器のREBCOパンケーキコイルへの適用性評価2018

    • Author(s)
      泊瀬川晋,伊藤悟,橋爪秀利
    • Organizer
      第96回(2018年度春季)低温工学・超電導学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 分割型高温超伝導マグネットのための接合/冷却技術研究開発の現状2018

    • Author(s)
      伊藤悟,橋爪秀利,柳長門,田村仁
    • Organizer
      第12回核融合エネルギー連合講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Resistance and critical current characteristics of demountable lap joint of various HTS tapes2018

    • Author(s)
      S. Ito, R. Hayasaka, H. Hashizume
    • Organizer
      9th Workshop on Mechanical and Electromagnetic Properties of Composite Superconductors
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fundamental Evaluations of Applicability of LTS Quench Detectors to REBCO Pancake Coil2018

    • Author(s)
      S. Hasegawa, S. Ito, G. Nishijima, H. Hashizume
    • Organizer
      Applied Superconductivity Conference 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Deformation characteristics of Indium Thin Films under Static and Cyclic Shear Stress used in Single Lap Joints of REBCO Coated Conductors2018

    • Author(s)
      L.E. Aparicio, S. Ito, H. Hashizume
    • Organizer
      L.E. Aparicio, S. Ito, H. Hashizume
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sample preparation for electro-mechanical measurements of mechanical lap joint of 10-kA-class prototype HTS STARS conductors2018

    • Author(s)
      S. Ito, T. Nishio, R. Hayasaka, L. Aparicio, N. Yanagi, Y. Terazaki, N. Bagrets, M. J. Wolf, H. Tamura, K.-P. Weiss, H. Hashziume, A. Sagara, Reinhard Heller, W. H. Fietz
    • Organizer
      4th HTS4Fusion Conductor Workshop
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electro-Mechanical Behavior of Mechanical Lap Joint Between REBCO Tapes under Cyclic Shear Stress2018

    • Author(s)
      L. Aparicio, S. Ito, H. Hashziume
    • Organizer
      4th HTS4Fusion Conductor Workshop
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Applicability Evaluations of a Quench Detectable Superconducting Sensor to HTS coils2018

    • Author(s)
      S. Hasegawa, S. Ito, H. Hashziume
    • Organizer
      4th HTS4Fusion Conductor Workshop
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] NbTi/YBCOハイブリッド線材のクエンチ検出性能向上の研究2017

    • Author(s)
      泊瀬川晋,伊藤悟,橋爪秀利
    • Organizer
      第94回(2017年度春季)低温工学・超電導学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 高磁場環境へのYBCO/LTSd線材の適用性の評価2017

    • Author(s)
      泊瀬川晋,伊藤悟,橋爪秀利
    • Organizer
      日本原子力学会東北支部 第41回研究交流会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Electro-mechanical measurements of mechanical lap joint of HTS STARS conductors2017

    • Author(s)
      S. Ito, T. Nishio, N. Yanagi, Y. Terazaki, N. Bagrets, M.J. Wolf, H. Tamura, K-P. Weiss, H. Hashziume, A. Sagara, W.H. Fietz
    • Organizer
      25th International Conference on Magnet Technology (MT25)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical and Experimental Evaluations of the Quench Detection Performance of a NbTi/YBCO Hybrid Tape2017

    • Author(s)
      S. Hasegawa, S. Ito, H. Hashizume
    • Organizer
      25th International Conference on Magnet Technology (MT25)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Advanced High-temperature Superconducting Magnet for Fusion Reactors2017

    • Author(s)
      S. Ito, H. Hashizume, N. Yanagi, T. Tamura
    • Organizer
      13th International Symposium on Fusion Nuclear Technology
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Comparison of Shear Strength and Failure Mechanisms of Lap Joint between REBCO Tapes Bonded by Different Joining Techniques2017

    • Author(s)
      L. Aparicio, S. Ito, H. Hashizume
    • Organizer
      13th International Symposium on Fusion Nuclear Technology
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Applicability evaluation of quench detectable hybrid REBCO tape to HTS magnet for fusion reactors2017

    • Author(s)
      S. Ito, S. Hasegawa, N. Yanagi, H. Hashizume
    • Organizer
      CHATS on Applied Superconductivity 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-02-19  

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