Coordinated Control Strategy of Wind Power and Large-Scale Access of Battery Energy Storage

With continuous expansion of the wind power, it has brought a negative impact on safe and stable operation of power grid. Energy storage technology is considered as an effective method to solve this problem. In large-scale access of battery energy storage system, the control of energy storage system itself is also an important part. This paper introduces a coordinated control strategy for large-scale energy storage in wind power system. The strategy can not only make full use of the energy storage system, but also improve the service life of the storage system. The strategy is proposed based on five control constraints: storage power compensation, storage capacity, power conversion system (PCS) conditions, state of charge (SOC) control, grid power fluctuation. The method of power distribution this paper proposed meet all the control constraints in storage system.