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KIEE international transactions on power engineering v.5A no.1, 2005년, pp.16 - 21   피인용횟수: 1

Unit Commitment for an Uncertain Daily Load Profile

Park Jeong-Do    (Division of Electrical Engineering, Uiduk University  );
  • 초록

    In this study, a new Unit Commitment (UC) algorithm is proposed to consider the uncertainty of a daily load profile. The proposed algorithm calculates the UC results with a lower load level than that generated by the conventional load forecast method and the greater hourly reserve allocation. In case of the worst load forecast, the deviation of the conventional UC solution can be overcome with the proposed method. The proposed method is tested with sample systems, which indicates that the new UC algorithm yields a completely feasible solution even when the worst load forecast is applied. Also, the effects of the uncertain hourly load demand are statistically analyzed, particularly by the consideration of the average over generation and the average under generation. Finally, it is shown that independent power producers participating in electricity spot-markets can establish bidding strategies by means of the statistical analysis. Therefore, it is expected that the proposed method can be used as the basic guideline for establishing bidding strategies under the deregulation power pool.


  • 주제어

    load profile .   uncertainty .   unit commitment.  

  • 참고문헌 (6)

    1. C. Wang, S. M. Shahidepour, 'Effects of Ramp-Rate Limits On Unit Commitment and Economic Dispatch', IEEE Trans. on Power Systems, vol.8, no.3, pp.1341-1350, Aug. 1993 
    2. C. K. Pang, et al, 'Optimal Short-Term Thermal Unit Commitment', IEEE Trans. on PAS, no.4, 1976 
    3. Seoul National University Institute of Economic Research, 'A Background Study for Introduction of Competition in the Korean Electricity Market', KEPCO, Aug. 1999 
    4. Feng-Chang Lu, Yuan-Yih Hsu, 'Fuzzy Dynamic Programming Approach to Reactive Power/Voltage Control in a Distribution Substation', IEEE Trans. on Power Systems, vol.12, no.2, May. 1997 
    5. C. K. Pang, et al, 'Evaluation Of Dynamic Programming Based Methods And Multiple Area Representation For Thermal Unit Commitment', IEEE Trans. on PAS, no.3, 1981 
    6. H.-T. Yang and K.-Y. Huang, 'Direct Load Control Using Fuzzy Dynamic Programming', IEE Proc. Generation, Transmission and Distribution, vol.146, issue 3, pp.294, May. 1999 
  • 이 논문을 인용한 문헌 (1)

    1. 2012. "" Journal of electrical engineering & technology, 7(3): 281~287     

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