Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Reliability Enhancement of Hybrid Superconducting Fault Current Limiter adopting Power Electric Device

전력용 반도체 소자를 적용한 하이브리드 초전도 한류기 동작 신뢰도 향상

  • Published : 2007.09.30
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Abstract

The current limiting characteristics of hybrid SFCL with additional power electronic devices was investigated in order to improve operation reliabilities. The hybrid SFCL developed consists of a superconducting trigger (S/T) part, a fast switch (F/S) module and a current limiting (C/L) part. Although hybrid SFCL had shown a excellent current limiting characteristics, this device was rather vulnerable to the residual arc currents which could exist during fast switch operation. This undesirable arc should be extinguished as quickly as possible in order to implement perfect fault current commutation. So, in order to eliminate the residual arcs between fast switch contacts, the power electronic devices (IGBT or GTO) were connected in series between the S/T part and the interrupter of the F/S module. According to the fault tests conducting with an input voltage of $270\;V_{rms}$ and a fault current of $5\;kA_{rms}$, The power electronic devices could perfectly remove the arc generated between the contacts of the interrupter within 4 ms after the fault occurred. From the test analysis, it was confirmed that the hybrid SFCL could enhance the operation reliability by adopting additional power electronic devices.

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References

  1. O. B. Hyun, H. R. Kim, J. Sim, Y. H. Jung, K. B. Park, J. S. Kang, B.W. Lee, and I. S. Oh, '6.6 kV resistive superconducting fault current limiter based on YBCO films,' IEEE Trans. Appl. Supercond., vol. 15, no. 2, pp. 2027-2030, June 2005 https://doi.org/10.1109/TASC.2005.849443
  2. J. Bock, F. Breuer, H.Walter, S. Elschner,M. Kleimaier, R. Kreutz, and M. Noe, 'CURL 10: Development and field -test of a 10 kV /10MVA resistive current limiter based on bulk MCP BSCCO-2212,' IEEE Trans. Appl. Supercond., vol.15, no.2, pp. 1955--1960, June 2005 https://doi.org/10.1109/TASC.2005.849344
  3. M.W.Rupich et. al, 'The Development of Second Generation HTS Wire at American Superconductor,' IEEE Trans. Appl. Supercond., Vol. 17, no 2, pp.3379 - 3382, 2007 https://doi.org/10.1109/TASC.2007.899076
  4. Y. Y. Xie, K. Tekletsadik. D. Hazelton, and V. Selvamanickam,' Second Generation High-Temperature Superconducting Wires for Fault Current Limiter,' IEEE Trans. Appl . Supercond., Vol. 17, no.2.pp.1981 - 1985, 2007 https://doi.org/10.1109/TASC.2007.898186
  5. M. Chen, W. Paul. M. Lakner, L. Donzel, M. Hoidis, P. Unternaehrer, R. Weder, and M. Mednik, '6.4 MVA resistive fault current limiter based on Bi-2212 superconductor,' Physica C, vol. 372.376, pp.1657-1663, Aug. 2002 https://doi.org/10.1016/S0921-4534(02)01096-1
  6. H.-P. Kraemer, W. Schmidt, B. Utz. and H.-W. Neumueller. 'Switching behavior of YBCO thin film conductors in resistive current limiters,' IEEE Trans. Appl . Supercond., vol. 13, pp. 2044-2047, June 2003 https://doi.org/10.1109/TASC.2003.812980