Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Design and Fabrication of Racetrack type High Tc Superconducting Magnet for the Superconducting Rotating Machine

초전도회전기용 래이스트랙형 고온초전도 마그네트 설계 및 제작

  • Sohn, M.H. (Applied Superconductivity Research Group, Korea Electrotechnology Research Institute) ;
  • Baik, S.K. (Applied Superconductivity Research Group, Korea Electrotechnology Research Institute) ;
  • Jo, Y.S. (Applied Superconductivity Research Group, Korea Electrotechnology Research Institute) ;
  • Lee, E.Y. (Applied Superconductivity Research Group, Korea Electrotechnology Research Institute) ;
  • Kwon, Y.K. (Applied Superconductivity Research Group, Korea Electrotechnology Research Institute) ;
  • Ryu, K.S. (Applied Superconductivity Research Group, Korea Electrotechnology Research Institute)
  • 손명환 (한국전기연구원 전략기술연구단 초전도응용연구그룹) ;
  • 백승규 (한국전기연구원 전략기술연구단 초전도응용연구그룹) ;
  • 조영식 (한국전기연구원 전략기술연구단 초전도응용연구그룹) ;
  • 이언용 (한국전기연구원 전략기술연구단 초전도응용연구그룹) ;
  • 권영길 (한국전기연구원 전략기술연구단 초전도응용연구그룹) ;
  • 류강식 (한국전기연구원 전략기술연구단 초전도응용연구그룹)
  • Published : 2001.04.19
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Abstract

Racetrack coils are used in many areas of superconductivity applications such as generators, motors, maglev, wiggler magnets and so on. The fabrication and characteristics of race-track type High Tc Superconducting (HTS) magnets were carried out. The Magnet is composed of 3 pancake coils wound by 37-filamental Bi-2223/ Ag-alloy tapes. Quench current ($I_q$) of both whole magnet and 3 pancake coils were measured. At 77K under the self-field, $I_q$ of magnet was 12A, while in the case of middle pancake coil, $I_q$ was 15A. The upper pancake coils of racetrack magnet with iron plates, magnet having optimized current distribution and initial magnet are compared with each other through 3D FEA, manufacturing and testing these magnets. The measured performance of the upper pancake coil #3 with iron plates improved by 50% on the basis of initial pancake coil #3. Quench current ($I_q$) of field winding was 12A. In addition, the fabrication processes and the characteristics of HTS magnet are described.

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