Wind power station energy storage system control method, device and system and storage medium

The embodiment of the invention provides a wind power station energy storage system control method, device and system and a storage medium, and belongs to the technical field of power grid frequency modulation. The method comprises the following steps: acquiring power grid frequency, power grid frequency change rate, wind turbine generator operating power, wind turbine generator theoretical operating power and flywheel charge state information in real time; and controlling the wind turbine generator and the flywheel to perform primary frequency modulation or virtual inertia response according to the power grid frequency, the power grid frequency change rate, the wind turbine generator operating power, the wind turbine generator theoretical operating power and the flywheel charge state information. The flywheel energy storage device and the energy storage control system are utilized on the single machine side of the wind turbine generator set, so that the wind turbine generator set has a series of functions su