The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Analysis on SFCL's Impedance for Protective Coordination in Large Transformer installed in Distribution Substation

배전변전소에 대용량변압기로 교체 적용시 보호협조를 위한 초전도 전류제한기의 임피던스 분석

  • 김진석 (숭실대 공대 전기공학부) ;
  • 김명후 (숭실대 공대 전기공학부) ;
  • 류일경 (숭실대 공대 전기공학부) ;
  • 문종필 (숭실대 공대 전기공학부) ;
  • 임성훈 (숭실대 공대 전기공학부) ;
  • 김재철 (숭실대 공대 전기공학부) ;
  • 안재민 (한국전기안전공사)
  • Published : 2009.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

The introduction of the large transformer due to the large power demand has increased the fault current in power distribution system. The increased fault current can exceed the cut-off ratings of the circuit breaker. As the methods to solve this problem, the superconducting fault current limiter(SFCL) has been notified. However, the limited fault current by SFCL affects the operational characteristics of the protective device such as overcurrent relay. Therefore, the selection of the proper impedance for the SFCL is required to keep overcurrent relay's protective coordination with the SFCL when a large transformer is introduced into the distribution system. In this paper, the SFCL's impedance for protective coordination was investigates in that a large transformer is introduced.

Keywords

References

  1. 김준환, 이강완, '전력계통 고장전류 증대와 대응방안', 전기저널, pp.19-31, 1998
  2. W. Paul and M. Chen, 'Superconducting control for surge currents', IEEE Spectrum, vol. 35, pp. 49-54, May 1998 https://doi.org/10.1109/6.669977
  3. E. Thuries, V. D. Pham, Y. Laumond. T. Verhaege, A. Fevrier, M. Collet, and M. Bekhaled, 'Toward the superconducting fault current limiter', IEEE Transactions On Power Delivery, vol. 6, no. 2, pp. 801-808, April 1991 https://doi.org/10.1109/61.131138
  4. 한국전기연구원, '초전도기기 모델링 및 초전도 기기보호 기술개발', 2001년
  5. 한국전력공사, ‘배전실무III', 2006년
  6. T. Hara, T. Okuma, T. Yamamoto, D. Ito K. Tasaki, and K. Tsurunaga, 'Development of a new 6.6kV/1500A class superconducting fault current limiter for electric power system,' IEEE Trans. Power Delivery, vol. 8, no. 1, pp. 182-192, Jan. 1993 https://doi.org/10.1109/61.180335
  7. B. Gromoll, G. Ries, W. Schmidt, H.-P. Kramer, P. kummeth, and H. -W. Neumiiller, :Resistive current limiters with YBCO films,' IEEE Trans. Appl. Superconduct., vol, 7, no. 2, pp. 828-831, Jun. 1997 https://doi.org/10.1109/77.614631
  8. W. Paul, Th. Baumann, J. Rhyner, and F. Platter, 'Test of 100 kW high-Tc superconducting fault current limiter,' IEEE Trans. Appl. superconduct., vol. 5, no. 1, pp. 1059-1062, June 1995 https://doi.org/10.1109/77.402734
  9. lWAO SHIMIZU, YUJI NAITO, lWAO YAMAGUCHI, KATSUYUKI KAIHO, SATORU YANABU, 'Application Study of a High-Temperature Superconducting Fault Current Limiter for Electric Power System,' Electrical Engineering in Japan, vol. 155. no. 4, pp. 20-29, 2006 https://doi.org/10.1002/eej.20265
  10. J. M. Ahn, J. S. Kim, J. F. Moon, S. H. Lim, J. C. Kim, 'Analysis on the Protective Coordination in Power Distribution System with Superconducting Fault Current Limiter,' Trans. KIEE. vol. 57, no. 5, pp. 755-760, May, 2008