Study On Bidding Behavior Of Power Generation Companies By Evolutionary Game Theory

The reformation of power market makes power generation companies bid more and more furiously. In the environment of power market, power generation companies' income depends closely on the bidding strategies they uses. However, The power generation companies have limited reason, and the strategies they use are affected by each others, so the process of bidding can be considered as a game process that the power generation companies'continuously adjust their own strategies to achieve a equilibrium state. Now, using evolutionary game to survey the process has been a major method.This paper continues to broaden the method of evolutionary game,and does deeply research in the symmetric and asymmetic game with two persons and two strageties and the symmetric game with two persons and three strategies,and discusses the stability of the replicate dynamic model.Then all of them will be as a theoretical foundation for application. At the same time,this paper also introduce a new idea named time scale to survey the behavior among the participants,which is from actual situation.And it compares with the replicate dynamic method.In the part of application,the situations that demand exceeds supply and supply exceeds demand, and whether the bidding behavior of generation companies is affected or not by the interaction of the power generation companies from the same group,are simulated by time scale in this paper.The simulation results show that this new method can reflect the dynamic process of bidding among the power generation companies,so the power generation companies can analyse the rivals's bidding direction by this method,and adjust their own bidding strategies in time to go in for the maximal income.