Power Optimization Allocation Strategy for Energy Storage Station Responding to Dispatch Instruction

Energy storage (ES) station can be dispatched by the energy management system (EMS) to realize peak load shifting, frequency regulation and other system control. According to the dispatch instructions, total charging and discharging power is allocated among all energy storage units reasonably and optimally. In this paper, a power allocation method is proposed. According to the performance parameters and operation parameters, the dispatch instruction is allocated real-timely with the minimum cost of ES station as the objective and the total charging and discharging capacity that can be dispatched in the next period is also taken into consideration. Then the ES station can respond to the dispatch actively. The simulation results show that operating condition of the ES station is optimized by the power allocation and total cost is also reduced.