Research on Optimal Allocation Strategy of Hybrid Energy Storage for Wind-Photovoltaic Hybrid Generation System

Abstract

In view of the influence of wind power output fluctuation on the reliable operation of power system, an optimal energy storage strategy is proposed to stabilize the grid-connected power fluctuation. A hybrid energy storage target output power control scheme based on model predictive control is established, and a hybrid energy storage power allocation strategy based on adaptive method is proposed to complete the adaptive adjustment and optimal allocation of hybrid energy storage output power. The simulation results show that the hybrid energy storage optimal allocation scheme proposed in this paper can effectively stabilize the fluctuation of grid-connected power, and has good engineering practical value for the distribution network system with high proportion of new energy.