Research on double-layer optimization site selection method for energy storage with grid-forming demand in new power system
A double-layer optimization site selection method for energy storage with grid-forming demand in novel power system is proposed,which considers the response of energy storage to peak shaving and frequency regulation in the power system and establishes a multi-objective double-layer optimization model.The operation layer counts the wind and solar power abandonment and network losses into the economic penalty,and takes the optimal annual operating cost of the system as the objective,considers the benefits of peak shaving and frequency modulation.The planning layer evaluates the security of the system and models the system by taking the optimal comprehensive annual operating cost of the system as the objective.Simulation and analysis of the algorithms are carried out using the improved empire competition algorithm.The peaking and frequency regulation economics and energy storage siting in the optimal scenario are illustrated through multi-scenario comparisons.Finally,the IEEE-33 node arithmetic system is simulated and analyzed to verify the validity of the proposed model.Furthermore,uncertainty factor indicators are selected to conduct sensitivity analysis on total costs,and the indicators that need more attention to affect economic costs are determined.
grid-configured energy storagepeak shavingfrequency regulationenergy storage planningsensitivity analysis