Cooperative Optimal Decision-making for Active Distribution Network with Shared Energy Storage Leased by Prosumers
As an emerging energy storage operation mode,the shared energy storage plays an important role in reducing the investment cost of prosumers and improving the efficiency of energy storage utilization.However,the current complex interactions and competing interests between prosumers,as well as with the shared energy storage operator(SESO),have exacerbated the difficulty in optimizing and regulating active distribution network.Therefore,a cooperative optimal decision-making method for the active distribution network with shared energy storage leased by prosumers is proposed.Firstly,the framework of the multi-agent cooperative transaction is constructed,which considers the interaction among distribution system operators,prosumers and SESOs.Secondly,a peer-to-peer power sharing trading mechanism that takes into account the participation of shared energy storage is established.And a two-stage pricing strategy for prosumers leasing shared energy storage is proposed accordingly.A bargaining factor indicator is used to quantify the bargaining power of each entity in the pricing process.Then,a game-based optimization model for active distribution network based on the improved Nash bargaining is established,and the bargaining factor is introduced in the index term to set its weight in the objective to achieve a reasonable distribution of benefits.Finally,an improved IEEE 33-bus distribution system is used to simulate and verify the effectiveness of the proposed method.
active distribution networkshared energy storageprosumermulti-agent cooperative transactionpeer-to-peer power sharing trading mechanismimproved Nash bargainingoptimization