An energy storage system (ESS) only participates in the control strategy in which the fluctuation of wind power is a single scenario, and there are problems such as frequent charging and discharging of ESS and the inability to effectively manage wind power consumption during the load valley period. To this end, a ESS control strategy for smoothing wind power fluctuations that takes into account the wind power consumption during the valley period is proposed. First, according to the time series relationship between wind power characteristics and load demand, the charging interval and discharging interval of the ESS in a dispatch cycle are determined. Second, the ESS control strategy of sub-area control is proposed. During the charging interval, electricity is stored to smooth the upward fluctuation of wind power. During the discharge interval, electricity is released to smooth the downward fluctuation of wind power. Finally, considering the real-time state of charge (SOC) and wind power consumption of the ESS, a fuzzy control-based charging and discharging power correction method for the ESS is proposed. Taking the actual data of a wind farm as an example, a test is performed on a simulation platform of a combined wind storage power generation system to verify the feasibility and superiority of the proposed operation strategy.