Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Characteristic analysis of components of a high temperature superconducting power supply using YBCO coated conductor

YBCO CC을 사용한 초전도전원장치의 요소특성 해석

  • 윤용수 (안산공과대학 전기과) ;
  • 조대호 (LG디스플레이) ;
  • 박동근 (연세대학교 전기전자공학과) ;
  • 양성은 (연세대학교 전기전자공학과) ;
  • 김호민 (한국전기연구원 초전도그룹) ;
  • 정윤도 (수원대학교 전기공학과) ;
  • 배덕권 (국립 충주대학교 안전공학과) ;
  • 고태국 (연세대학교 전기전자공학과)
  • Published : 2009.09.30
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Abstract

Many superconductor applications such as MRI and SMES must be operated in persistent current mode to eliminate the electrical ohmic loss. This paper presents the characteristic analysis of the high temperature superconducting (HTS) power supply made of YBCO coated conductor (CC). In this research, we have manufactured the HTS power supply to charge the 0.73 mH HTS double-pancake magnet made of YBCO CC. Among the all design parameters, the heater triggerring time and magnet applying time were the most important factors for the best performance of the HTS power supply. In this paper, three-dimensional simulation through finite element method (FEM) was used to study the heat transfer in YBCO CC and the magnetic field of the magnetic circuit. Based upon these results, the final operational sequence could be determined to generate the pumping current. In the experiment, the maximum pumping current reached about 16 A.

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References

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