Investment decision-making method in capacity-energy market with high proportion of renewable energy
In order to guarantee capacity adequacy for the power system with a high penetration of renewable energy resources,it is necessary to establish a capacity market mechanism that is compatible with the energy market.From the perspective of investment decision-making,this paper analyzes the efficiency of capacity market mechanism in the power system with high-proportion of renewable energy by studying supplier's investment behavior in capacity-energy market with high integration of renewable energy.Firstly,a three-layer optimization model is established for the investment decision problem,including unit decision-making,capacity market and energy market model.Then since the model is difficult to solve directly,a phased loop iterative solution algorithm is proposed,being able to solve the problem with the capacity and energy market decoupled.Finally,based on the actual data of a certain provincial network,this paper uses the proposed method to compare the effects of energy-only market and capacity-energy market on capacity adequacy for the power system with a high proportion of renewable energy.
high proportion of renewable energycapacity marketenergy marketpower generation investmentcapacity sufficiency