Optimal configuration of industrial user-side energy storage considering power demand income in life cycle

Abstract

The optimal configuration method of energy storage considering the impact of optimal operation of energy storage on economic income is an important foundation for commercial investment in energy storage. This paper proposes an optimal configuration model of user-side energy storage aiming at the net present value of the entire life cycle of the energy storage system, and comprehensively considering the income of user peak-valley arbitrage and the reduction of demand electricity charges caused by two-part tariff. Considering the problem that the model cannot be solved directly since the operating variables and planning variables in the model are coupled with each other and the model contains exponential variables, this paper proposes the method based on the feasible region discretization and variable iterative correction to reduce the difficulty of solving the original model. Finally, the optimized results of the user-side energy storage configuration are calculated with data from two typical areas of Beijing and Shanghai, which verified the validity and stability of the model.