Study on Reduction Method of AC Loss and Optimization of HTS Coil for Rotating Machines

• Project/Area Number: 23560320
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Niigata University
• Principal Investigator: FUKUI Satoshi 新潟大学, 自然科学系, 准教授 (70293199)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: 高温超伝導コイル / 交流損失 / 高温超伝導回転機

Research Abstract

Power meter method and boil-off method were developed to measure the AC loss in HTS coils in this study. These methods were applied for the AC loss measurement of HTS model coil. The theoretical model to analyze the AC in HTS coil based on the AC loss data of the HTS tape was also developed. It was confirmed that the measured results of the AC loss in the model coils by the power method and the boil-off method were well explained by the theoretical model. The optimization of the HTS coil used in a rotational machines was theoretically investigated by using the model. The reduction method of the AC loss in the HTS coil by introducing the tilt-winding was proposed and the effect of AC reduction was experimentally verified.

Research Products

• [Journal Article] Measurement and Numerical Analysis of AC Loss in High Temperature Superconducting Coil (2012)
  • Author(s): S.Fukui, M.Shibayama, J.Ogawa, T.Oka, T.Sato, T.Takao, O.Tsukamoto
  • Journal Title: IEEE Trans. on Applied Superconduct-ivity Volume: Vol.22 Pages: 470490-470490
  • Peer Reviewed
• [Journal Article] Numerical Study of Optimization Design of High Temperature Superconducting Field Winding in 20 MW Synchronous Motor for Ship Propulsion (2012)
  • Author(s): S.Fukui, T.Kawai, M.Takahashi, J.Ogawa, T.Oka, T.Sato, O.Tsukamoto
  • Journal Title: IEEE Trans. on Applied Superconduct-ivity Volume: Vol.22 Pages: 5200504-5200504
  • Peer Reviewed
• [Journal Article] Measurement and Numerical Analysis of AC Loss in High Temperature Superconducting Coil (2012)
  • Author(s): S. Fukui, M. Shibayama, J. Ogawa, T. Oka, T. Sato, T. Takao, O. Tsukamoto
  • Journal Title: IEEE Trans. on Applied Superconductivity Volume: 22 Pages: 4704904-4704904
  • Peer Reviewed
• [Journal Article] Numerical Study of Optimization Design of High Temperature Superconducting Field Winding in 20 MW Synchronous Motor for Ship Propulsion (2012)
  • Author(s): S. Fukui, T. Kawai, M. Takahashi, J. Ogawa, T. Oka, T. Sato, O. Tsukamoto
  • Journal Title: IEEE Trans. on Applied Superconductivity Volume: 22 Pages: 5200504-5200504
  • Peer Reviewed
• [Journal Article] Experimental Investigation of Loss Characteristics With AC and DC Offset Transport Current in HTS Double Pancake Coil (2012)
  • Author(s): J. Ogawa, S. Fukui, T. Oka, T. Sato, M. Shibatama, M. Egawa, A. Sato
  • Journal Title: IEEE Trans. on Applied Superconductivity Volume: 22 Pages: 4705004-4705004
  • Peer Reviewed
• [Journal Article] Measurement and Numerical Analysis of AC Loss in High Temperature Superconducting Coil (2012)
  • Author(s): Satoshi Fukui, Makoto Shibayama, Jun Ogawa, Tetsuo Oka, Takao Sato, Tomoaki Takao, Osami Tsukamoto
  • Journal Title: IEEE Trans. on Applied Superconductivity Volume: 22
  • Peer Reviewed
• [Presentation] 傾斜巻線部の導入による高温超伝導コイルの交流損失低減効果 (2013)
  • Author(s): 石井寛明,塚本翔午,中村航,福井聡,小川純,佐藤孝雄,塚本修巳
  • Organizer: 2013年秋季低温工学・超電導学会
  • Place of Presentation: ウインクあいち
• [Presentation] 傾斜巻線部の導入による高温超伝導コイルの交流損失低減効果 (2013)
  • Author(s): 石井寛明, 塚本翔午, 中村航, 福井聡, 小川純, 佐藤孝雄, 塚本修巳
  • Organizer: 2013年度秋季低温工学・超電導学会
  • Place of Presentation: 愛知県産業労働センター
• [Presentation] Study of Electro-magnetic Design of HTS Synchronous Generators for 10 - 20MW-class Wind Turbine (2013)
  • Author(s): S. Fukui
  • Organizer: International Conference on Magnet Technology
  • Place of Presentation: Boston, USA