경쟁형 전력시장에서 입찰담합의 유인에 대한 분석 기법 연구

Analysis Technique on Collusive Bidding Incentives in a Competitive Generation Market

  • 발행 : 2006.06.01

초록

This paper addresses the collusive bidding that functions as a potential obstacle to a fully competitive wholesale electricity market. Cooperative game is formulated and the equation of its Nash Equilibrium (NE) is derived on the basis of the supply function model. Gencos' willingness to selectively collude is expressed through a bargain theory. A Collusion Incentive Index(CII) for representing the willingness is defined through computing the Gencos' profits at NE. In order to keep the market non-cooperative, the market operator has to know the highest potentially collusive combination among the Gencos. Another index, which will be called the Collusion Monitoring Index(CMI), is suggested to detect the highest potential collusion and it is calculated using the marginal cost functions of the Gencos without any computation of NE. The effectiveness of CMI for detecting the highest potential collusion is verified through application on many test market cases.

키워드

참고문헌

  1. J.B. Cardell, C.C. Hitt, and W.W. Hogan, 'Market Power and Strategic Interaction in Electricity Networks,' Resource and Energy Economics, Vol. 19, ?pp. 109-137, 1997 https://doi.org/10.1016/S0928-7655(97)00006-7
  2. S.M. Harvey, and W.W. Hogan, 'On the Exercise of Market Power Through Strategic Withholding in California,' April 24, 2001. available at http://ksghome.harvard.edu/~whogan/
  3. 김남일, '경쟁적 전력시장에서의 입찰균형가격 예측을 위한 이론적 모델과 실증분석,' 에너지경제연구원 기술보고서, 2002. 4
  4. V.Krishna, and VC Ramesh, 'Intelligent Agents for Negotiations in Market Games,' IEEE Trans. on Power Systems, Vol. 13, No. 3, pp. 1103-1108 August 1998 https://doi.org/10.1109/59.709106
  5. S. Stoft, 'Using Game Theory to Study Market Power in Simple Networks,' IEEE Tutorial on Game Theory in Electric Power Market, IEEE Press TP-l36, pp. 33-40, 1999
  6. Y. He, and Y. H. Song, 'The Study of the Impacts of Potential Coalitions on Bidding Strategies of GENCOs,' IEEE Trans. on Power Systems, Vol. 18, No. 3, pp. 1086-1093, August 2003 https://doi.org/10.1109/TPWRS.2003.811011
  7. K.H. Lee, 'Analysis on Market Power in Power Transaction with Transmission Constraints,' Trans. on KIEE, Vol. 51A, No. 8, pp. 403-408, August 2002
  8. J.D. Weber, and T.J. Overbye, 'A Two-Level Optimization Problem for Analysis of Market Bidding Strategies,' IEEE PES Summer Meeting, Vol. 2, pp. 682-687, 1999 https://doi.org/10.1109/PESS.1999.787399
  9. A.J. Wood, and B.F. Wollenberg, Power Generation, Operation, and Control, John Wiley & Sons, Inc. 1996
  10. D.W. Carlton, and J.M. Perloff, Modem Industrial Organization, Addison-Wesley, 2000
  11. M. Shahidehpour, H. Yamin, and Z. Li, Market Operation in Electric Power Systems, John Wiley & Sons, Inc. 2002