Wind turbine control device and method for reducing fluctuation of grid frequency when grid disturbance occurs, and wind turbine generator system thereof

摘要

When a grid disturbance occurs, output power control is performed for each wind turbine so as to reduce fluctuation of a frequency of an output power of the wind turbine at an early stage of the grid disturbance. The output power control is performed for each wind turbine so as to reduce fluctuation of a grid frequency at an interconnection point, in a late stage of the grid disturbance.