The Transactions of the Korean Institute of Electrical Engineers A (대한전기학회논문지:전력기술부문A)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Distance Relaying Algorithms Immune to Reactance Effect for Double-Circuit Transmission Line Systems

리액턴스 효과를 최소한 병행 2회선 송전선로 보호 거리계전 알고리즘

  • 안용진 (정회원, 유호전기공업(주) 주임연구원·공박) ;
  • 강상희 (정회원, 명지대 공대 전기공학과 부교수·공박) ;
  • 이승재 (정회원, 명지대 공대 전기공학과 교수·공박)
  • Published : 2001.01.01
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Abstract

For double-circuit transmission line systems, an accurate digital distance relaying algorithm immune to the reactance effect is proposed. The apparent impedance calculated by the distance relay is influenced by the combined reactance effect of the fault resistance and the load current as well as the mutual coupling effect caused by the zero-sequence current of the adjacent parallel circuit. To compensate the magnitude and phase of the estimated impedance, this algorithm uses phase angle difference between the zero(positive) sequence of the both side of the system seperated by the fault point. The impedance measuring algorithm presented used a current distribution factor to compensate mutual coupling effect instead of the collected zero-sequence current of the adjacent parallel circuit.

Keywords

References

  1. '직접접지계통 송전선로 고저항 지락보호대책연구(최종보고서), 전력연구원, pp.3-4, July, 1997
  2. W.D. Breingan, M. M. Chen, T. F. Gallen, 'The Laboratory Investigation of a Digital System of the Protection of Transmission Lines' IEEE Trans. PAS, Vol. PAS-98, pp 350-357, /mar./Apr. 1979 https://doi.org/10.1109/TPAS.1979.319326
  3. Zhang Zhizhe, Chen Deshu, 'An Adaptive Approch in Digital Distance Protection', IEEE Trans. on Power Delivery, Vol. 6, No. 1, pp.135-142, January 1991 https://doi.org/10.1109/61.103732
  4. 안용진, 강상희, '고장저항의 영향을 최소화한 거리계전기법', 1998 대한전기학회 추계학술대회 논문집, pp.286-288, 1998
  5. Yong-Jin Ahn, Sang-Hee Kang, Myong-Song Choi, Seung-Jae Lee, 'An Accurate Fault Location Algorithm for Double-Circuit Transmission Systems', IEEE Power Engineering Society Summer Meeting 2000, pp.1344-1349, July 16-20, 2000 https://doi.org/10.1109/PESS.2000.868719
  6. 안용진, '병행 2회선 송전선로 고장점 표정 알고리즘', 1999학년도 공학석사학위논문, 명지대, pp.18-19, 1999
  7. Sang-Hee Kang, Jong-Keun Park, Nam-Ho Kim, 'A New Digital Distance Relaying Based on the Fast Haar Transformation Using a Half cycle Offset Free Signals' Trans. of the IEE of Japan, Vol. 114, Pt. B, No. 6, pp.601-608, Jun 1994