Active Reactive Power Control Strategy Based on Electrochemical Energy Storage Power Station

摘要

In order to resolve the key problem of continuous rectification fault, this paper proposes a joint control strategy based on electrochemical energy storage power station. Firstly, the influence of commutation failure on the AC system was analyzed, and a mathematical model with the minimum power grid fluctuation as the objective function was established; Then, the particle swarm optimization algorithm was used to solve the problem, so as to control the output of the electrochemical energy storage, so that the voltage of the DC converter station recovers rapidly after the fault, the power fluctuation of the regional power grid was the smallest, and the state feedback control of the energy storage system was controlled. Ensure that the energy storage equipment did not be overcharged and discharged. Secondly, the voltage fluctuation after the electrochemical energy storage power station was connected to be calculated by the power flow calculation, and discrete reactive power compensation was performed on the bus line to further adjust the voltage fluctuation. Finally, the simulation analysis is carried out by the DC standard test system in the electromagnetic transient simulation software PSCAD to verify the effectiveness of this joint control strategy and achieve the joint adjustment of power and voltage.