한국초전도ㆍ저온공학회논문지 (Progress in Superconductivity and Cryogenics)

  • 제14권3호
  • /
  • Pages.23-27
  • /
  • 2012
  • /
  • 1229-3008(pISSN)
  • /
  • 2287-6251(eISSN)
한국초전도저온학회 (The Korean Society of Superconductivity and Cryogenics)
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No-insulation 기법을 적용한 소용량 고온 초전도 코일의 영구전류 특성에 관한 연구

A Study on the Basic Characteristics of Persistent Current Mode Operation for Small Scale High Temperature Superconducting Coil with No-insulation Winding Method

  • 이태성 (연세대 대학원 전기전자공학과) ;
  • 이우승 (연세대 대학원 전기전자공학과) ;
  • 최석진 (연세대 대학원 전기전자공학과) ;
  • 조현철 (연세대 대학원 전기전자공학과) ;
  • 김형준 (연세대 대학원 전기전자공학과) ;
  • 이지호 (연세대 대학원 전기전자공학과) ;
  • 강재식 (연세대 대학원 전기전자공학과) ;
  • 권오준 (고려대 대학원 신소재공학과) ;
  • 이해근 (고려대 공과대학 신소재공학과) ;
  • 고태국 (연세대 공과대학 전기전자공학과)
  • 투고 : 2012.08.10
  • 심사 : 2012.09.21
  • 발행 : 2012.09.30
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초록

This paper aims to evaluate the feasibility of using no-insulation High Temperature Superconducting (HTS) coil in persistent current mode system. A HTS coil in persistent current mode system usually includes one or more non-superconducting joints in its circuit. And the current decaying rate of the coil is affected by the resistance of joint in persistent current circuit. If the resistance of joint is large, decaying rate of the current drastically increases. Therefore, reducing the joint resistance of the HTS coil is very important in persistent current mode system. In this paper, the no-insulation HTS coil is suggested as a way to reduce the joint resistance with the embedded parallel contact resistance naturally made by no-insulation winding method. Two small coils are fabricated with insulation and no-insulation winding method, and persistent current mode system experiment of each coil is preformed and analyzed.

키워드

참고문헌

  1. Seungyong Hahn, Dong Keun Park, Juan Bascunan, and Yukikazu Iwasa, "HTS Pancake Coils Without Turn-to-Turn Insulation", IEEE Transactions on Applied Superconductivity, vol. 21, no. 3, pp. 1592-1595, June 2011. https://doi.org/10.1109/TASC.2010.2093492
  2. Sukjin Choi, Hyun Chul Jo, Young Jin Hwang, Seungyong Hahn and Tae Kuk Ko, "A Study on the No insulation Winding Method of the HTS Coil", IEEE Transactions on Applied Superconductivity, vol. 22, no. 3, in press, June 2012.
  3. Seungyong Hahn, Dong Keun Park, Juan Bascunan, and Yukikazu Iwasa, "No-insulation(NI) HTS Inserts for> 1 GHz LTS/HTS NMR Magnets", IEEE Transactions on Applied Superconductivity, vol. 22, no. 3, in press, June 2012.
  4. 조현철, 장기성, 장재영, 김형준, 정윤도, 운용수, 고태국, "BSCCO Magnet 제작 및 영구전류모드에서의 전류 보상 운전 특성", 한국초전도 저온공학회논문집, 12권 1호, pp. 56-60, 2010년.
  5. 김형준, 조현철, 장기성, 양민규, 안민철, 고태국, "고온초전도 마그넷 적용을 위한 YBCO Coated Conductor의 곡률 접합방법 연구", 한국초전도 저온공학회 논문집,12권 1호, pp. 17-21, 2010년.