시간별 신뢰도 가치를 고려한 분산전원의 최적 운영전략

Optimal Operating Strategy of Distributed Generation Considering Hourly Reliability Worth

  • 발행 : 2003.08.01

초록

This paper presents an optimal operating strategy of distributed generation (DG) with reliability worth evaluation of distribution systems. Using DG for peak-shaving unit could reduce the overall system operating cost, and using DG for standby power unit could reduce the customer interruption cost. If DG operating cost is less than utility power cost in peak time, DG should be running to reduce the overall system operating cost. When customer interruption cost enlarges, however, standby power strategy may be the better operating strategy than peak-shaving strategy. Selection of whether DG should be operated for peak-shaving or for standby power, needs the accurate reliability worth evaluation and the accurate power cost evaluation. Instead of using annual average reliability worth, the concept of hourly reliability worth is introduced in this paper to determine the optimal operating decision of DG. Applying suggested hourly reliability worth, the distribution companies that possess DG could set up the optimal operating strategy of DG.

키워드

참고문헌

  1. P. A. Daly and J. Morrison, 'Understanding the Potential Benefits of Distributed Generation on Power Delivery Systems', Rural Electric Power Conference, pp. A2/1-A2/13, 2001 https://doi.org/10.1109/REPCON.2001.949510
  2. Gas Research Institute, 'The Role of Distributed Generation in Competitive Energy Markets', Distributed Generation Forum, 1999
  3. R. Billinton and P. Wang, 'Time Sequential Distribution System Reliability Worth Analysis Considering Time Varying Load and Cost Models', IEEE Trans. on Power Delivery, Vol. 14, No. 3, pp. 1046-1051, 1999 https://doi.org/10.1109/61.772352
  4. R. Billinton and R. N. Allan, Reliability Evaluation of Engineering Systems, Plenum Press, 1992
  5. G. Toefson, R. Billinton, G. Wacker, E. Chan and J. Aweya, 'A Canadian Customer survey to Assess Power system Reliability Worth', IEEE Trans. on Power systems, Vol. 9, No. 1, pp. 443-450, 1991 https://doi.org/10.1109/59.317579
  6. L. Goel, R. Billinton and R. Gupta, 'Basic Data and Evaluation of Distribution System Reliability Worth', WESCANEX '91, pp. 271-277, 1991 https://doi.org/10.1109/WESCAN.1991.160560
  7. R. N. Allan, R. Billinton, I. Sjarief, L. Goel and K. S. So, 'A Reliability Test System for Educational Purpose-Basic Distribution System Data and Results', IEEE Trans. on Power systems, Vol. 6, No. 2, pp. 813-320, 1991 https://doi.org/10.1109/59.76730
  8. R. Billinton and W. Li, Reliability Assessment of Electric Power Systems Using Monte Carlo Methods, Plenum Press, 1994