YBCO소자의 연결방법에 의한 자속구속형 초전도 한류기의 퀜치특성의 향상

Improvement of Quench Properties of a Flux-Lock Type Superconducting Fault Current Limiter by the Connection Method of YBCO Elements

  • 발행 : 2008.09.01

초록

We investigated the quench characteristics of a flux-lock type superconducting fault current limiter (SFCL) depending on the methods of the serial and parallel connections between the superconducting elements. The flux-lock type SFCL consists of two coils. The primary coil is wound in parallel to the secondary coil through an iron core, and the secondary coil is connected to the superconducting elements in series and parallel. In this paper, the analyses of voltage, current, and resistance of the superconducting elements connected in serial and parallel were performed to increase the power capacity of the flux-lock type SFCL. A part of the superconducting elements was not quenched in $2{\times}2$ serial connection between the elements and then the power burden of the quenched elements was increased. However the elements with $2{\times}2$ parallel connection was all quenched. This means that the power burden of each superconducting element can be reduced under the same conditions. We found that $2{\times}2$ parallel connection was more profitable for the current limiting effects and the increase of the power capacity.

키워드

참고문헌

  1. W. Paul, M. Chen, M. Lakner, J. Rhyner, D. Braun, and W. Lanz, "Fault current limiter based on high temperature superconductors - different concepts, test results, simulations, applications", Physica C, Vol. 354, pp. 27-33, 2001 https://doi.org/10.1016/S0921-4534(01)00018-1
  2. T. Matsumura, T. Uchii, and Y. Yokomizu, "Development of flux-lock type current limiter with high-Tc superconducting element," IEEE Trans. Appl. Superconduct., vol. 7, pp. 1001-1004, June 1997 https://doi.org/10.1109/77.614676
  3. H.-S. Choi, H.-R. Kim, O.-B. Hyun, and S . - J . Kim, "Quench properties of Y-Ba-Cu-O films after overpowering quenches," IEEE Trans. Appl. Superconduct., Vol. 11, pp. 2418-2421, 2001 https://doi.org/10.1109/77.920350
  4. B. Gromoll, G. Ries, W. Schmidt, H. P. Krämer, P. Kummeth, H. W. Neu müller and S. Fischer, "Resistive current limiters with YBCO films," IEEE Trans. Appl. Superconduct., Vol. 7, pp. 828-831, 1997 https://doi.org/10.1109/77.614631
  5. S. Elschner, F. Breuer, M. Breuer, M. Noe, T. Rettelbach, H. Walter, and J. Bock, "Manufactruing and testing of MCP 2212 bifilar coils for a 10 MVA fault current limiter," IEEE Trans. Appl. Superconduct., vol. 13, pp. 1980-1983, June 2003 https://doi.org/10.1109/TASC.2003.812954
  6. 임성훈, 최명호, 이현수, 한병성, "차폐유도형 고온초 전도 전류제한기 의 설계 및 특성 시뮬레이션", 전기학회논문지, Vol. 48C, No. 3, pp.173-178, 1999
  7. S. H. Lim, H. S. Choi, and B. S. Han, "Fault current limiting characteris due to winding direction between coil 1 and coil 2 in a a flux-lock type SFCL", Physica C, vol. 416, No, 1-2, pp. 34-38, 2004 https://doi.org/10.1016/j.physc.2004.08.019
  8. S. H. Lim, H. G. Kang, H. S. Choi, S. R. Lee, and B. S. Han, "Current limiting characteristics of flux-lock type high-Tc superconducting fault current limiter with control circuit for magnetic field", IEEE Trans. on Appl. Supercond., vol. 13, No, 2, pp. 2056-2059, 2003 https://doi.org/10.1109/TASC.2003.812984
  9. 박형민, 임성훈, 박충렬 , 최효상, 한병성, "자속구속형 과 저항형 초전도 전류제한기의 특성비교", 전기전자재료학회논문지, 18권 4호 pp. 363-369, 2005 https://doi.org/10.4313/JKEM.2005.18.4.363