A cooperative game based trading model for shared energy storage considering multi participants benefit incentive

Aiming at the problems of a single trading mode of shared energy storage and complex cooperative relationship among multiple participants, this paper proposes a cooperative game-based trading model for shared energy storage considering multi-participant benefit incentives. Firstly, a trading model is proposed to tripartite cooperation among power supply, power grid, and energy storage under centralized shared energy storage power stations. Then, considering the needs and benefits of all participants, a cooperative game model is established in which the transaction price of shared energy storage power station and new energy power station, and the transaction price of shared energy storage power station and power grid are taken as decision variables. In particular, this article solves the transaction price of shared energy storage and the income of three participants under different cooperation modes. Additionally, this paper uses the shapely value to distribute the overall revenue of the shared energy storage alliance, and analyzes the impact of grid-connected power of new energy power stations and shared energy storage capacity on the transaction price. The results show that the multi-participants profit in the cooperation mode is the largest, and the daily income of each participant increases between 600 and 1,800 yuan, which verifies the fairness and efficiency of the transaction mode proposed in this paper.