Optimal Configuration for User-side Energy Storage System Considering Multiple Function and Economic Life

As an important two-way resource for efficient consumption of green electricity, energy storage system (ESS) can effectively promote the establishment of a clean, low-carbon, safe and efficient new energy system. In order to assist the decision-making of ESS projects and promote the further development of the ESS industry, this paper proposes a user-side ESS optimal configuration method that considers the application of ESS multiple functions and economic life. Firstly, a multi-functional application value model of user-side ESS is established, and an optimized operation method for multiple function applications is proposed. Secondly, the difference between the economic life of ESS and the physical life is analyzed. The ESS economic life model based on the cost and revenue of ESS and the ESS decay model based on the operation of ESS are proposed. Based on the above value model and the economic life model of ESS, an optimal configuration method for user-side ESS is proposed. Finally, based on actual data, a comparative example simulation was carried out to verify the effectiveness of the proposed optimization method.