Studyonthescalinglawwithtemperatureoftheaclossesinnext generationREBCOsuperconductingwires

2012 Fiscal Year Final Research Report

• Project/Area Number: 22360116
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Kyushu University
• Principal Investigator: IWAKUMA Wasataka 九州大学, システム情報科学研究院, 教授 (30176531)
• Project Period (FY): 2010 – 2012
• Keywords: 超伝導材料・素子 / REBCO / 交流損失 / 電気機器工学 / 電気・電子材料

Research Abstract

By observing the magnetizations and ac losses of REBa Cu O 2 3 7-x （RE:Rare Earth, Y, Gd and so on, REBCO）superconducting tapes at 4.2 K to 77 K, which are developed as next generation superconducting wires, with a saddle-shaped pick-up coil, it was shown that the critical currents, magnetizations and ac losses of REBCO superconducting tapes are scaled with temperature. That brings us the predictability of the ac loss properties of REBCO superconducting tapes at any temperature.

Research Products

• [Journal Article] Development of REBCO superconducting transformers with a current limiting function (2013)
  • Author(s): M. Iwakuma , Y. Katanosaka, S. Sato, H. Hayashi, H. Okamoto, Y. Gosho, A. Tomioka, M. Konno, Y. Iijima, T. Saitoh, T. Ohkuma, A. Tagomori, T. Izumi, Y.Shiohara
  • Journal Title: IEEE Trans. Appl. Supercond. Volume: Vol. 23 Pages: 6376116
  • DOI: DOI:10.1109/TASC.2012.2232345
  • Peer Reviewed
• [Journal Article] Feasibility Study on a 400 kW-3600 rpm REBCO Fully Superconducting Motor (2012)
  • Author(s): M. Iwakuma , T. Ogata, S. Tomoda, T. Kisu, Y. Yoshida, A. Ishiyama , Y. Yamada, T. Izumi and Y. Shiohara
  • Journal Title: IEEE Trans. Appl. Supercond. Volume: Vol. 22, No. 3
  • DOI: DOI:10.1109/TASC.2011.2177229
  • Peer Reviewed
• [Journal Article] Development of REBCO Superconducting Transformers with Current Limiting Function (2012)
  • Author(s): Tomoaki Tsutsumi, Akira Tomioka , Masataka Iwakuma , Hiroshi Okamoto, Yoshihiro Gosho, Hidemi Hayashi, Yasuhiro Iijima, Takashi Saito, Takeshi Ohkuma, Akihiko Tagomori, Teruo Izumi, Yuh Shiohara
  • Journal Title: Physics Procedia Volume: Vol. 36 Pages: 1115- 1120
  • DOI: DOI:10.1016/j.phpro.2012.06.186
  • Peer Reviewed
• [Journal Article] Theoretical Study on Ac Loss Properties of REBCO Superconducting Two-Strand Parallel Conductors Exposed to a Non-Uniform Magnetic Field (2012)
  • Author(s): Keisuke Kumano, Daisuke Moriwaki, Masataka Iwakuma , Kazuo Funaki, Hidemi Hayashi, Hiroshi Okamoto, Yoshihiro Gosho, Takeshi Ohkuma, Akihiko Tagomori, Teruo Izumi, Yuh Shiohara
  • Journal Title: Physics Procedia Volume: Vol. 36 Pages: 1109- 1114
  • DOI: DOI:10.1016/j.phpro.2012.06.185
  • Peer Reviewed
• [Journal Article] AC Loss Properties of Laser-Scribed 、 Multi-Filamentary GdBCO Coated Conductors with Artificial Pinning Centres (2012)
  • Author(s): Takuya Hayashi, Sosuke Nakamura, Masataka Iwakuma , Kazuo Funaki, Akira Ibi, Yutaka Yamada, Teruo Izumi, Yuh Shiohara, Takashi Saitoh, Yasuhiro Iijima
  • Journal Title: Physics Procedia Volume: Vol. 36 Pages: 1522- 1527
  • DOI: DOI:10.1016/j.phpro.2012.06.204
  • Peer Reviewed
• [Journal Article] Development of a REBCO superconducting transformer with current limiting function (2011)
  • Author(s): M. Iwakuma
  • Journal Title: IEEE Trans. Appl. Supercond. Volume: Vol. 21 Pages: 1405-1408
  • DOI: DOI:10.1109/TASC.2010.2089592
  • Peer Reviewed
• [Journal Article] Transport and AC loss properties of the repaired multifilamentary REBCO superconducting tapes (2010)
  • Author(s): S. Yamasaki, M. Iwakuma , 他9名
  • Journal Title: Physica C Volume: Vol. 470 Pages: 1316-1320
  • Peer Reviewed
• [Presentation] Development of a 66kV-20MVA REBCO Superconducting Transformer with a Current Limiting Function (2012)
  • Author(s): M. Iwakuma , Y. Katanosaka, S. Sato, H. Hayashi, H. Okamoto, Y. Gosho, A. Tomioka, M. Konno, S. Yoshida, Y. Suzuki, A. Tagomori, T. Ohkuma, M. Yoshizumi, T. Izumi, Y. Shiohara
  • Organizer: International Conference on Coated Conductors for Applications 2012
  • Place of Presentation: Heidelverg, Germany
  • Year and Date: 20121111-14
• [Presentation] ピックアップコイルによる超伝導線材・導体の磁化・交流損失測定 (2012)
  • Author(s): 岩熊成卓
  • Organizer: 2012 年度低温工学・超電導学会九州・西日本支部若手セミナー
  • Place of Presentation: 大分県九重
  • Year and Date: 20120917-19
• [Presentation] Y 系超伝導変圧器の交流損失特性の評価 (2012)
  • Author(s): 福田幸弘、片野坂祐太、川鍋良平、岩熊 成卓、岡元洋、林秀美、五所嘉宏、富岡 章、田子森秋彦、大熊武、和泉輝郎、塩原融
  • Organizer: 第86回低温工学・超電導学会
  • Place of Presentation: 盛岡
  • Year and Date: 20120107-09
• [Presentation] 限流機能を有する高温超伝導 変圧器の開発 (2012)
  • Author(s): 岩熊成卓
  • Organizer: 変圧器の開発、応用物理学会超伝導分科会 第46回研究会
  • Place of Presentation: 東京
  • Year and Date: 2012-12-06
• [Presentation] 層にわたる超伝導2本転位並列導体の交流損失特性 (2012)
  • Author(s): 坂川涼、熊野圭恭、岩熊成卓、船木和夫、 岡元洋、林秀美、五所嘉宏、田子森秋彦、 大熊武、和泉輝郎、塩原融
  • Organizer: 第86回低温工学・超電導学会
  • Place of Presentation: 盛岡
  • Year and Date: 2012-11-09
• [Presentation] Development of HTS power devices (2012)
  • Author(s): M. Iwakuma
  • Organizer: Kyushu University & Changwon National University Joint Workshop 2012 on Superconductivity
  • Place of Presentation: Fukuoka
  • Year and Date: 2012-01-06
• [Presentation] REBCO 超電導線材・導体の磁化と交流損失の低減 (2011)
  • Author(s): 岩熊成卓
  • Organizer: 低温工学・超電 導学会 2011年度東北・北海道支部/材料 研究会合同研究会
  • Place of Presentation: 日光市
  • Year and Date: 2011-09-29
• [Presentation] 超電導線材の交流損失低減技 術の過去・現在・未来 (2011)
  • Author(s): 岩熊成卓
  • Organizer: 電導技術動向報告会
  • Place of Presentation: 東京
  • Year and Date: 2011-05-23