저단락비 HVDC 시스템에서웨 무효편력수급 최적 방안 연구

Study on Optimized Scheme of Reactive Power Compensation for Low Short-Circuit-Ratio HVDC System

  • 백승택 (명지대 차세대전력기술연구센터) ;
  • 한병문 (명지대 공대 전기공학과) ;
  • 오세승 (고려대 공대 전기공학과) ;
  • 장길수 (고려대 공대 전기공학과)
  • 발행 : 2005.09.01

초록

This paper describes an optimized Scheme of reactive-power compensation for the low short-circuit-ratio AC system interconnected with the HVDC system. An HVDC system interconnected with tile low SCR AC system is vulnerable to the ac voltage variation, which brings about the commutation failure of the converter. This problem can be solved using optimized compensation of reactive power. In this study, a benchmark system for HVDC system interconnected with low SCR AC system is derived using PSS/E simulation. Then an optimized srheme for reactive power compensation was derived using integer programming. The feasibility of proposed scheme was analyzed through silnulations with PSS/E and PSCAD/EMTDC. The proposed scheme can compensate the reactive power accurately and minimize the number of switching for harmonic filters and shunt reactors.

키워드

참고문헌

  1. K. R. C. Mamander, 'Emergency Adjustment to Var Control to Alleviate Over-Voltages, Under-Voltages, and Generator Var limit Violations', IEEE Transactions on Power Apparatus and Systems, Vol. PAS-101, No.5, pp.1040-1047, 1982 https://doi.org/10.1109/TPAS.1982.317356
  2. A. E. Hammad, W. Kuhn, 'A Computation Algorithm for Assessing Voltage Stability at AC/DC Interconnections', IEEE Transactions on Power Systems, Vol. PWRS-1, No.1, pp.209-216, 1986
  3. O. B. Nayak, A. M. Gale, D. G. Chapman, and J. B. Davies, 'Dynamic performance of static and synchronous compensators at an HVDC inverter bus in a very weak ac system,' IEEE Trans. Power Syst., vol. 9, pp. 1350-1358, Aug. 1994 https://doi.org/10.1109/59.336131
  4. M. De Oliveira, M. Poloujadoff, A. Le Du, and P. G. Therond, 'Supply of an entirely passive AC system through an HVDC link,' J. Elect. Power Energy Syst., vol. 16, no. 2, pp. 111-116, 1994 https://doi.org/10.1016/0142-0615(94)90047-7
  5. B. R. Andersen, J. L. Haddock, R. Burgess, and S. I. Kim, 'Korean mainland to Cheju island HVDC link,' Modern Power Systems, Apr. 1994
  6. A. M. Gole, M. Meisingset, 'Capacitor commutated converter for long-cable HVDC transmission,' Inst. Elect. Eng. Power Eng. J., vol. 16, no. 3, pp. 129-134, June 2002 https://doi.org/10.1049/pe:20020305AdditionalInformation
  7. M. Szechtman, T. Wess, and C. V. Thio, 'First benchmark model for HVDC control studies,' Electra, vol. 135, pp. 55-73, Apr. 1991