조명전기설비학회논문지 (Journal of the Korean Institute of Illuminating and Electrical Installation Engineers)

  • 제19권8호
  • /
  • Pages.40-47
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  • 2005
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  • 1229-4691(pISSN)
  • /
  • 2287-5034(eISSN)
한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
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UPFC를 포함한 송전성에서의 전류차동 보호 방식의 개선

Improvement of the Differential Current Relaying Method for Protecting the Transmission Line Equipped with UPFC

  • 임정욱 (명지대학교 전기공학과) ;
  • 권영진 (명지대학교 전기공학과) ;
  • 발행 : 2005.12.31
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초록

본 논문에서는 대표적인 유연송전기기인 UPFC(Unified Power flow Controller)를 대상으로 UPFC 운전이 송전계통에 미치는 영향을 분석하여 송전선 보호를 위한 전류차동방식을 개선하였다. UPFC가 포함된 송전계통을 대상으로 UPFC의 여러 운전 모드에 대한 동적 해석을 통하여 UPFC 동적 특성이 송전선 보호를 위한 전류차동 계전방식에 미치는 영향을 분석하였다. 이를 바탕으로 UPFC가 운전하고 있을 때의 고장을 효과적으로 판단할 수 있도록 개선된 전류차동 보호방법을 제안하였고, 제안된 방법의 타당성을 시뮬레이션으로 입증하였다.

The objective of this paper is to analyze power system dynamics influenced by UPFC(Unified Power flow Controller) operation and to develop a refined DCRM(Differential Current Relaying Method) to protect the transmission line with UPFC effectively. The implementation of control strategies for UPFC introduces new power system dynamic problems that must be considered while applying the conventional DCRM. In this paper, impact of UPFC operation on the DCRM has been reviewed and a refined DCRM has been proposed to detect faults properly in spite of UPFC operation. The porposed method is verified by simulation on the line-faulted system with UPFC.

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참고문헌

  1. Clark W. Gellings, Marek Samotyj, and Bill Howe, 'The Future's Smart Delivery System,' IEEE Power & Energy, Vol.2, No.5, Sep./Oct. 2004, pp.40-48
  2. P.K. Dash, A.K. Pradhan, Ganapati Panda, And A.C. Liew, 'Adaptive Relay Setting for Flexible AC Transmission Systems(FACTS),' IEEE Trans. on Power Delivery, Vol.15, No.1, Jan., 2000, pp. 38-43 https://doi.org/10.1109/61.847226
  3. N.G. Hingorani and L. Gyugyi, Understanding FACTS, 2000, IEEE Press
  4. M.H. Haque, 'Optimal Location of Shunt FACTS Devices in Long Transmission Lines,' IEE Proceedings - Generation, Transmission, and Distribution, Vol.147, Issue 4, July 2000, pp.218 - 222
  5. Final Report, 'A Study on Establishment of Protective Relay Setting Rules,' June 2003, pp.17-30