Review on Energy Storage Participation in Capacity Configuration and Scheduling Optimization in Modern Power System

After large-scale integration of renewable energy, the power supply and load structure of the system have undergone tremendous changes. The fluctuation and intermittence of renewable energy power generation output bring about the problem of grid peak shaving. Energy storage is one of the effective solutions. This paper reviews various peak shaving methods of energy storage capacity configuration optimization method and dispatching operation optimization method. Firstly, the optimization methods of energy storage capacity configuration are reviewed from two aspects: energy storage consumption and energy storage economic cost. The economic cost refers to the maximum economic effect and the minimum system cost. The energy storage consumption refers to the maximum consumption, the optimal ratio, the minimum power and the minimum capacity. Secondly, the energy storage scheduling operation optimization method is classified and summarized from a single time scale and multiple time scales. The single time scale is to use the day-ahead and intra-day scheduling to adjust the peak respectively, and the multiple time scale is to combine the advantages of the two to adjust the peak. Finally, the prospect of energy storage participating in peak regulation of modern power system is prospected.