Optimized operation strategy of pumped storage-electrochemical energy storage for renewable energy consumption

Since the large-scale connection of renewable energy to the grid will lead to the abandonment of wind and light energy, this paper investigates a strategy for optimizing the joint operation of pumped storage hydro and electrochemical energy storage plants in terms of renewable energy consumption. First, an optimization model for the joint operation of pumped storage hydro and electrochemical energy storage is proposed based on grid abandonment. Then, based on this, an electrochemical energy storage optimization method is proposed to meet the demand of power abandonment rate of the grid, taking into account the pumped storage hydro. Finally, the problem is solved with YALMIP + CPLEX. The results show that energy wastage can be reduced by rationally organizing the joint operation of a pumped storage hydro and electrochemical energy storage, and the need for a pumped storage power plant with an inverter is also confirmed.