Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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A Study on the Winding Method for Reducing Joints of the High Temperature Superconducting Double Pancake Coil

고온 초전도 더블 팬케이크의 접합 수 감소를 위한 권선 방법에 관한 연구

  • 강재식 (연세대 대학원 전기전자공학과) ;
  • 조현철 (연세대 대학원 전기전자공학과) ;
  • 장재영 (연세대 대학원 전기전자공학과) ;
  • 황영진 (연세대 대학원 전기전자공학과) ;
  • 이지호 (연세대 대학원 전기전자공학과) ;
  • 이우승 (연세대 대학원 전기전자공학과) ;
  • 박영건 (연세대 대학원 전기전자공학과) ;
  • 고태국 (연세대 공과대학 전기전자공학과)
  • Received : 2011.11.28
  • Accepted : 2012.03.21
  • Published : 2012.03.31
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Abstract

A double pancake winding method is widely used to make the superconducting magnet, using high temperature superconductor (HTS) tape. In the double pancake winding method, the joints with contact resistances between double pancake coils are inevitably needed. The electrical joule heating on the contacts causes refrigerant loss during operation. And a space outside the winding, for splices and mechanical support, is more than that for its layer-wound equivalent. In this paper, a double pancake winding method in order to reduce the number of the joints was proposed. Both of the double pancake coils using the conventional winding method and the proposed winding method have been fabricated and tested to make the solution technically feasible in the double pancake winding method. Especially, critical-current tests of the fabricated double pancake coils were conducted in order to show the same performance and confirm contact resistances between double pancake coils.

Keywords

References

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