Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
권호 표지
DOI QR코드

DOI QR Code

Conceptual Design of High-Tc Superconducting Current leads for Superconducting Nuclear Fusion Magnets with respect to various HTS tapes

HTS 선재에 따른 초전도 핵융합 마그넷용 고온초전도 전류도입선의 개념설계

  • 장재영 (연세대 대학원 전기전자공학과) ;
  • 장기성 (연세대 대학원 전기전자공학과) ;
  • 김영재 (연세대 대학원 전기전자공학과) ;
  • 최석진 (연세대 대학원 전기전자공학과) ;
  • 조현철 (연세대 대학원 전기전자공학과) ;
  • 주승열 (연세대 대학원 전기전자공학과) ;
  • 고태국 (연세대 전기전자공학과)
  • Published : 2010.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

Superconducting current leads are indispensible for reducing power loss when subjecting current into superconducting magnets. HTS(High-Tc superconducting) current leads are divided into two types; one is bulk type and the other is tape type. In this paper, conceptual design on the HTS current leads which adopts tape type for nuclear fusion magnets is carried out using magnetic field analysis and thermal analysis. When large current flows through superconducting current leads, strong self magnetic field is generated and applied to the superconducting tapes. This phenomenon leads to the critical current decrease of the superconducting tape. Therefore, we analyzed magnetic field distribution of current leads and found the proper arrangement with respect to the various HTS tapes. In addition to the magnetic field analysis, heat leak through the current leads was also calculated to know which HTS tape is superior than others in thermal aspect. Magnetical field analysis and calculation of heat leak are performed to design 2 kA class HTS current leads.

Keywords

References

  1. 김석환, 한송엽 "초전도 공학개론", 대영사, 2004년.
  2. Pierre Bauer, Yanfang Bi, Anyi Cheng, Arnaud Devred, Kaisong Ding, Xiongyi Huang, Kun Lu, Neil Mitchell, Ananta K. Sahu, Guang Shen, Yuntao Song, and Tingzhi, Zhou "R&D Towards HTS Current Leads for ITER", IEEE Transactions on Applied Superconductivity, vol. 19, no. 3, pp. 1500-1503, 2009. https://doi.org/10.1109/TASC.2009.2017838
  3. Myung-Hwan Sohn, Seokho Kim, Kideok Sim, Joon-Han Bae, Seok-Ju Lee, Hae-YongPark. "Fabrication and Characteristics of 2G HTS Current Leads", 21st International Conference on Magnel Technology, 2009.
  4. 장현만, 오상수, 조전욱, 조영식, 하홍수, 하동우, 성기철, 권영길, 류강식, 김상현, "SMES 마그네트용 고온초전도 전류도입선 설계", 한국 초전도 저온공학회, 2권, 2호, pp. 6-10, 2000.
  5. Yukikazu Iwasa, Haigun Lee, "High-temperature superconducting current lead incorporating operation in the current-sharing mode", Cryogenics, vol. 40, pp. 209-219, 2000. https://doi.org/10.1016/S0011-2275(00)00032-1
  6. C.Hoffmann, N.Strickland, D.Pooke, J.Gannon, B.Carter, A.Otto, "Thermal Comductivity of 2G HTS wires of current lead application". European Conference on Applied Superconductivity, 2009.
  7. http://www.nexans.fr/eservice/France-fr_FR/navigate_126712/HTS_current_leads.html#op