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

대한전기학회 (The Korean Institute of Electrical Engineers)
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송전선로 보호용 디지털 지능형 거리계전기

Digital Adaptive Distance Relay for Transmission Line Protection

  • 발행 : 2001.09.01
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초록

Distance relay is the most widely used in transmission line protection because it is applicable not only as main protection but also as back-up protection. However, the protection range of the distance relay is always fixed in the unchangeable operating range while the power system varies, and therefore the distance relay is the device that is the highly influenced by the power system changes. In this regard, this paper describes an approach to minimize the mal-operation of the distance relay due to the power system changes through changing protection range of the distance relay into optimal condition in response to the load variation and power system condition. Also mal-function of the distance repay in case of high resistance ground faults could be minimized through modeling the protection range into quadratic function.

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참고문헌

  1. Y. Q. Xia, 'Adaptive Relay Setting for Stand-Alone Digital Distance Protection', IEEE Trans. on Power Delivery, Vol.9, No.1, 1994 https://doi.org/10.1109/61.277720
  2. P.J.MOORE, 'Performance of Adaptive Distance Protection Under High Resistance Earth Faults', Cigre, 1992
  3. C.H.Jung, D.J.Shin, J.O.Kim, 'Adaptive Setting of Digital Relay for Transmission Line Protection', PowerCon 2000. 12 https://doi.org/10.1109/ICPST.2000.898186
  4. 이종범, 정창호 외, '송전계통 고저항지락사고에 대한 보호계전기 시험 및 특성분석에 관한 연구', 대한전기학회 논문지, pp. 412-421, 1998. 4
  5. 정창호 외, 'Adaptive 보호범위를 가진 송전선로 보호용 디지털 거리계전기', 대한전기학회 하계학술대회, pp. 893-895, 7
  6. 정창호 외, '송전선로 보호용 디지털 거리계전기의 최적동작범위의 자동설정에 관한 연구', 계통보호제어기술연구회 학술발표회, 1998. 11