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.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.8 No.3
- 발행연도
- 2013.5
- 수록면
- 499 - 506 (8page)
이용수
초록· 키워드
오류제보하기
The accurate estimation of a fault location is desired in distance protection schemes for transmission lines in order to selectively deactivate a faulted line. However, a typical method to estimate a fault location by calculating impedances with voltages and currents at relaying points may have errors due to various factors such as the mutual impedances of lines, fault impedances, or effects of parallel circuits. The proposed algorithm in this paper begins by extracting the fundamental phasor of the positive sequence currents from the three phase currents. The second-order difference of the phasor is then calculated based on the fundamental phasor of positive sequence currents. The traveling times of the waves generated by a fault are derived from the second-order difference of the phasor. Finally, the distance from the relaying point to the fault is estimated using the traveling times. To analyze the performance of the algorithm, a power system with EHV(Extra High Voltage) untransposed double-circuit transmission lines is modeled and simulated under various fault
conditions, such as several fault types, fault locations, and fault inception angles. The results of the simulations show that the proposed algorithm has the capability to estimate the fault locations with high speed and accuracy.
conditions, such as several fault types, fault locations, and fault inception angles. The results of the simulations show that the proposed algorithm has the capability to estimate the fault locations with high speed and accuracy.
목차
Abstract
1. Introduction
2. Traveling Waves Generated by Faults
3. Algorithm of Fault Location Estimation using Second-Order Difference of Positive Sequence Current Phasor
4. Simulations and Results
5. Conclusions
References
참고문헌 (19)
참고문헌 신청
1. [학술지(정기간행물)] - M. M. Mansour. / 1986 / A multi-microprocessor based travelling wave relay-theory and realization / IEEE Transactions on Power Delivery 1 (1) : 272 ~ 279
2. [학술지(정기간행물)] - S. Wajendra. / 1985 / Traveling-wave techniques applied to the protection of teed circuits : principle of traveling wave techniques / IEEE Transactions on Power Apparatus and Systems, Vol. PAS-104, No 12 : 3544 ~ 3550
3. [학술지(정기간행물)] - S. Rajendra. / 1985 / Traveling wave techniques applied to the protection of teed circuits : Multiphase/ multi circuit system / IEEE Transactions on Power Apparatus and Systems, Vol. PAS-104, No 12 : 3551 ~ 3557
4. [학술지(정기간행물)] - E. H. Shehab-Eldin. / 1988 / Traveling wave distance protection-problem areas and solutions / IEEE Transactions on Power Delivery 3 (3) : 894 ~ 902
5. [학술지(정기간행물)] - J. Blake. / 1996 / In-line Sagnac interferometer current sensor / IEEE Transactions on Power Delivery 11 (11) : 116 ~ 121
2. [학술지(정기간행물)] - S. Wajendra. / 1985 / Traveling-wave techniques applied to the protection of teed circuits : principle of traveling wave techniques / IEEE Transactions on Power Apparatus and Systems, Vol. PAS-104, No 12 : 3544 ~ 3550
3. [학술지(정기간행물)] - S. Rajendra. / 1985 / Traveling wave techniques applied to the protection of teed circuits : Multiphase/ multi circuit system / IEEE Transactions on Power Apparatus and Systems, Vol. PAS-104, No 12 : 3551 ~ 3557
4. [학술지(정기간행물)] - E. H. Shehab-Eldin. / 1988 / Traveling wave distance protection-problem areas and solutions / IEEE Transactions on Power Delivery 3 (3) : 894 ~ 902
5. [학술지(정기간행물)] - J. Blake. / 1996 / In-line Sagnac interferometer current sensor / IEEE Transactions on Power Delivery 11 (11) : 116 ~ 121
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