한국초전도ㆍ저온공학회논문지 (Progress in Superconductivity and Cryogenics)

  • 제14권2호
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  • Pages.20-23
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  • 2012
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  • 1229-3008(pISSN)
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  • 2287-6251(eISSN)
한국초전도저온학회 (The Korean Society of Superconductivity and Cryogenics)
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Investigation of I-V characteristics and heat generation of multiply connected HTS conductors in parallel

  • Park, H.C. (Department of Mechanical Engineering, Changwon National University) ;
  • Kim, S. (Department of Mechanical Engineering, Changwon National University) ;
  • Cho, J. (Korea Electrotechnology Research Institute) ;
  • Sohn, M.H. (Korea Electrotechnology Research Institute)
  • 투고 : 2012.03.27
  • 심사 : 2012.05.11
  • 발행 : 2012.05.31
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초록

With continuous development of the 2nd generation HTS conductor, the critical current of the conductor is also increasing. However, many applications require more than 2 conductors in parallel to transport large current. Applications such as HTS power cables and some HTS current leads usually need much larger transport current than that provided by a single conductor and they require more than several tens of HTS conductors. In the case of parallel connection of multiple HTS conductors, the current distribution depends on the contact resistance of each conductor at the terminals for DC operation. The non-uniform distribution of the terminal resistances results in a non-uniform distribution of the current. The resultant current non-uniformity affects on the measurement of the I-V curve and the thermal performance of the multiple conductors. This paper describes the I-V curves obtained from multiply connected HTS conductors with different terminal contact resistances to investigate the relationship between the distorted I-V curve and heat generation.

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참고문헌

  1. M. Sohn, S. Kim, K. Sim, J. H. Bae, S. Lee, B. Eom, H. Park, "Fabrication and characteristics of current lead with 2G HTS tapes," KIEE, Summer Annual Conference 2009, July 2009.
  2. H. Park, K. Kim, D. Kim, A. Kim, M. Park, I. Yu, S. Kim, K. Sim, M Sonh, "Design and manufacture of HTS current lead for 10kJ SMES," KIEE, Summer Annual Conference 2009, July 2009.
  3. S. Choi, S. lee, K. Sim. J. Cho and et al, "DC critical current test method for 22.9 kV/50 MVA Superconducting Power Cable Considering the Uncertainty," IEEE Trans. Appl. Supercon, vol. 20, no. 3, pp. 1272-1275, June 2010. https://doi.org/10.1109/TASC.2010.2043519
  4. J. Cho, K. Sim, J. H. Bae , H. J. Kim and et al., "Design and Experimental Results of a 3 phase 30 m HTS Power Cable", IEEE Trans. Appl. Supercon, vol. 16, no. 2, pp. 1602-2605, June 2006. https://doi.org/10.1109/TASC.2005.864321
  5. J. H. Kim, M. Park, J. Cho, K. Sim, S. Kim and I. K. Yu, "Current distribution analysis of conducting and shield layers of HTS power cable under utility fault condition", IEEE Trans. Appl. Supercon, vol. 19, no. 3, pp. 1781-1784, June 2009.
  6. J. Bae, D. K Bae, J. W. Cho, K. Sim and T. K. Ko, "Non-uniform current distribution of multi-strand HTS cable", KIEE Trans. Energy conversion system, vol. 53, no. 7, pp. 424-429, 2004.
  7. K. Sim, S. Kim, S. Lee, J. Cho and T. K. Ko, "The estimation of the current distribution on the HTS cable by measuring the circumferential magnetic field," IEEE Trans. Appl. Supercon, vol. 20, no. 3, pp. 1981-1984, June 2010. https://doi.org/10.1109/TASC.2010.2042706
  8. K. Sim, S. Kim, J. Cho, D. Kim, C. Kim, H. Jang, S. Sohn, S. Hwang, "DC critical curent and AC loss measurement of the 100 m 22.9 kV/50 MVA HTS cable," Physica C, vol. 468, no. 15-20, pp. 2018-2022, September 2008. https://doi.org/10.1016/j.physc.2008.05.274

피인용 문헌

  1. Current Sharing and Redistribution in Superconducting DC Cable vol.23, pp.3, 2013, https://doi.org/10.1109/TASC.2013.2244153