Research Of Generators' Game And Policy Effects Considering Renewable Energy Price Policy

Considering the high cost and environmental benefits of renewable power,the international community generally adopted the renewable energy price policy to promote the application of renewable energy.The power generators,as the micro-economic subject in power market,should not only consider the changes in power demand but also consider the impact of the intervention of renewable power and renewable energy price policy when making decisions about investment capacity.Therefore,by introducing the renewable power generation and the renewable energy price policy to the conventional power market competition theory framework,this paper researched these policies' mechanism functions and their policy effects.The main research contents of this paper are as follows:The analysis of oligopoly competition of power generators and the model analysis of renewable energy price policy.Focusing on the power generators,we conduct comprehensive analysis about the market body,market structure and transaction modes in the electric power market,and clearly demonstrate the operation mode of current power market as well as the competitive environment where the generators are.According to the positive externalities of renewable energy,Premium Feed-in Tariff(PFIT)and Renewable Portfolio Standard(RPS)being the market-dependent price policy is revealed,and Pigou theory and Couse theorem are elaborated as theoretical basis for the implemetation of the price policy.Combining the background of the implementation of renewable energy price policy and the characteristics of market-dependent renewable energy price policy,on the basis of the decision models of traditional energy generators and renewable energy generators,we model the renewable energy price policy and integrate it into the two stages decision-making process of power generators,so that the elementary game model of power generators is established with the consideration of renewable energy price policy.Research on the game of power generators and the policy effect considering the renewable energy price policy in the market with deterministic demand.In the power market demand with deterministic demand,according to the difference of information structures of power generators,the open-loop and closed-loop game models are constructed to respectively simulate contract transaction mode and spot trading mode.Then the renewable energy price policy is introduced into these two models to construct the game models of generators under the renewable energy price policy.Further,considering the open-loop and closed-loop game equilibrium among generators,we investigate the affecting mechanism of renewable energy price policy on the power capacity investment of generators,and theoretically analyze the policy effect of different renewable energy price policies.Research on the game of power generators and the policy effect considering the renewable energy price policy in the market with stochastic demand.In the power market demand with stochastic demand,power generators have incomplete information about the power demand.In this part,we introduce the renewable energy price policy and construct the two stages game models of generators for PFIT policy and RPS policy.Then we explore the equilibrium situations among power generators with different renewable energy price policies,investigate the affecting mechanism of renewable energy price policy on the power capacity investment of generators,and theoretically analyze the policy effect of different renewable energy price policies.By taking the photoelectric price policy as an example,the power market equilibriums and its policy effects are numerically simulated.With the operation data of the electric power market in China and Israel,we numerically analyze the changes in power investment of the generators when the policy changes.With the constraint of equal amount of renewable energy capacity investment,we compare the effect of renewable energy policy on the power price,consumer surplus and social welfare,so that the mechanism functions and policy effects of the PFIT and RPS policy are verified numerically.