面向虚拟点对点交易的配电网协同扩展规划

More electricity utilities will participate in the investment and operation of private distributed generations(DGs)while the local power company is responsible for the reinforcement of lines and DGs,as well.How to achieve the maximum benefits among various utilities,including the power company,is a task in the expansion planning of distribution networks.To solve the market-oriented planning problem,virtual peer to peer(P2P)trading is integrated and modeled in the new expansion planning of distribution networks.First,virtual market transaction optimization among prosumers is formulated.Second,the distributed regional marginal price(DLMP)is calculated by the optimal operation model,which contributed to the network usage charge(NUC)and then integrated in the expansion planning model.Case studies are performed and indicate the integrated P2P transaction strategy could improve local load consumption,while reducing the load rate of lines,as well as the electricity cost of users.Besides,the total planning cost paid by the power company could be saved via prosumers'investment and P2P transactions and the factors affecting power company's profit are also classified in multi-investor planning of distribution networks.