지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
These days, SFCLs are being developed in order to limit fault current. However, the superconducting elements that limit the fault current have such problems as capacity increase and require auxiliary devices including cooling device. If devices that comprise the current power network can withstand fault current for at least one cycle, it is possible to limit the fault current with current limiting elements by bypassing it on the fault line. In this study, the fault current limiter was configured with current transformer, vacuum interrupter, and current limiting element. Through the experience, it was confirmed that the fault current was limited within one cycle. The superconducting element, as a current limiting element, limited the fault current by 80 % within one cycle from fault occurrence, and the passive element limited it more than 95 %. Also, through the comparison between resistance curve and power consumption curve, it was confirmed that the current limiting element using a passive element was more stable than the superconducting element that required capacity increase and other auxiliary devices. It was considered that the FCL proposed in this study could limit fault current stably within one cycle from fault occurrence by using the existing power technologies such as fault current detection and solenoid valve operating circuit.
목차
Abstract
1. Introduction
2. Principle and Experimental Procedure of a FCL
3. Results and discussion
4. Conclusion
References
참고문헌 (9)
참고문헌 신청
O. B. Hyun, J. W. Sim, H. R. Kim, K. B. Park, S. W. Yim,
and I. S. Oh, "Reliability enhancement of the fast switch
in a hybrid superconducting fault current limiter by using
power electronic switches," IEEE Trans. Appl. Supercond.,
vol. 19, no. 3, pp. 1843–1846, June 2009.
O. B. Hyun, K. B. Park, J. W. Sim, H. R. Kim, S. W. Yim,
and I. S. Oh, "Introduction of a hybrid SFCL in KEPCO grid
and local points at issue," IEEE Trans. Appl. Supercond.,
vol. 19, no. 3, pp. 1946–1949, June 2009.
H. Lee, K. B. Park, J. Sim, Y. G. Kim, I. S. Oh, O. B. Hyun,
and B. W. Lee, "Hybrid superconducting fault current
limiter of the first half cycle non-limiting type," IEEE
Trans. Appl. Supercond., vol. 19, no. 3, pp. 1888–1891,
June 2009.
S. H. Lim, J. C. Kim, and B. W. Lee, "Improvement of
recovery characteristics of a flux-lock type SFCL using a
superconductor’s trigger," IEEE Trans. Appl. Supercond.,
vol. 20, no. 3, pp. 1182–1185, June 2010.
Y. S. Cho, H. S. Choi, S. P. Go, "Operational Characteristics
of Transformer-Type SFCL with or without Neutral Line
between the Secondary windings and Superconducting
units", Journal of Electrical Engineering & Technology, Vol.
60, No. 6, pp. 1268-1273, 2011.
O. B. Hyun, K. B. Park, J. W. Sim, H. R. Kim, S. W. Yim,
and I. S. Oh, "Introduction of a hybrid SFCL in KEPCO grid
and local points at issue," IEEE Trans. Appl. Supercond.,
vol. 19, no. 3, pp. 1946–1949, June 2009.
H. Lee, K. B. Park, J. Sim, Y. G. Kim, I. S. Oh, O. B. Hyun,
and B. W. Lee, "Hybrid superconducting fault current
limiter of the first half cycle non-limiting type," IEEE
Trans. Appl. Supercond., vol. 19, no. 3, pp. 1888–1891,
June 2009.
S. H. Lim, J. C. Kim, and B. W. Lee, "Improvement of
recovery characteristics of a flux-lock type SFCL using a
superconductor’s trigger," IEEE Trans. Appl. Supercond.,
vol. 20, no. 3, pp. 1182–1185, June 2010.
Y. S. Cho, H. S. Choi, S. P. Go, "Operational Characteristics
of Transformer-Type SFCL with or without Neutral Line
between the Secondary windings and Superconducting
units", Journal of Electrical Engineering & Technology, Vol.
60, No. 6, pp. 1268-1273, 2011.
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UCI(KEPA) : I410-ECN-0101-2016-560-002870986