考虑多市场主体需求的配电网分布式储能投资决策方法OA

With the increasing bottleneck in distribution network carrying capacity,the distributed energy storage systems have become an important means of support.However,the distribution network operators,energy storage investors,and load aggregators are constrained by the lack of planning responsibility,insufficient investment returns and unclear benefit-sharing mechanisms,making it difficult for any single party to independently promote carrying capacity enhancement.To address this issue,this paper proposes an investment decision-making method for the distributed energy storage systems in the distribution networks considering the demands of multiple market entities.First,addressing the planning and decision-making issues of distributed energy storage in the distribution networks,a cooperative game model is constructed between the energy storage investors and load aggregators.This model fully considers the spatiotemporal adjustment potential of diverse and flexible resources such as electric vehicle loads and data centers during the planning phase,thereby introducing the multi-stakeholder cooperative game mechanism into the distributed energy storage planning process and reducing the overall investment and operating costs for energy storage investors while effectively alleviating the expansion pressure on the distribution network operators.Then,a benefit allocation mechanism based on Nash bargaining theory is introduced to ensure fair benefit distribution and reasonable cost sharing,thus incentivizing all participants to engage in cooperative gaming and maximizing social welfare.Finally,to address the nonlinear and nonconvex nature of the original problem,it is decomposed into a social welfare maximization problem and a benefit allocation bargaining problem,thereby ensuring tractability and computational efficiency.The results show that the proposed method can meet the carrying capacity enhancement requirements of the distribution network and reduce the investment and operation costs of energy storage,while improving the benefit level and willingness to cooperate of all parties,ultimately enabling multiple market entities to jointly promote the sound development of the distribution network.