平抑风电功率波动的混合储能运行策略与容量配置研究OA

To achieve effective integration of renewable energy and reduce the instantaneous power fluctuations of wind power,a hybrid energy storage system(HESS)operation strategy and integrated capacity allocation considering the smoothing of power fluctuation of wind farms was proposed by leveraging the complementary characteristics of high-energy-density lithium battery storage and high-power-density flywheel storage.Firstly,an energy management system for HESS that coordinates multiple energy storage systems was constructed,taking into account constraints such as power capacity and charge-discharge efficiency.Additionally,with the objectives of minimizing the comprehensive cost of the energy storage system and the opportunity compensation cost of wind power,a baseline variable was introduced for correction to establish a capacity configuration model for HESS that mitigates wind power fluctuations.Finally,by utilizing actual grid-connected data,the optimal capacity configuration for the energy storage was obtained.The results show that this strategy significantly reduces the grid-connected fluctuation rate while notably decreasing the configuration cost of the energy storage system.