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Optimal Capacity Allocation of Combined Output of Tower Gravity Energy Storage Power Station and Wind Farm

To solve the capacity planning problem of wind power energy storage hybrid system, a capacity planning method of tower gravity energy storage power station based on factor analysis is proposed. Considering the multi-objective complexity of capacity optimization of tower energy storage power station, a comprehensive evaluation index system for capacity planning of tower gravity energy storage power station is established. The evaluation index system takes the highest total score as the goal, considering the randomness of wind power output and the economy of grid-connected operation of gravity energy storage system. By solving the evaluation index values of different capacities, the factor analysis method is used to reduce the dimension of each capacity index value, and the optimal planning capacity of gravity energy storage power station is determined. The calculation results of evaluation indexes, factor variance contribution rate and rotation component matrix of energy storage power plants with different capacity are given. The wind power output and energy storage capacity can be reasonably arranged through the comprehensive score of planning capacity, which can provide the optimal planning capacity of wind power energy storage combined system for technicians.