Wind turbine control method

摘要

A wind turbine control method is described based on the performance of various measurements of the oscillations of the nacelle of the wind turbine for the purpose of carrying out a series of calculations, the results of which allow parameterization of certain actions on different wind turbine elements in order to dampen oscillations. In summary, it may be said that the object of the invention described herein is a wind turbine control method whereby the oscillations of the nacelle of the wind turbine are dampened in the presence of voltage dips in particular and, in general, in any event that is susceptible of reducing active current generation capacity.

主权项

1. A wind turbine control method comprising:
a rotor that in turn comprises a plurality of blades, an electricity generator connected to the grid, a power train, a nacelle, at least one control unit, and a blade pitch system configured to control the pitch angle of each blade,wherein the method comprises capturing at least one signal indicative of the state of the grid wherein said signal may be indicative of a voltage dip, said method being characterised in that it comprises:
calculating a minimum dip pitch rate limit (Δβ/Δt)min lower than a maximum design pitch rate limit (Δβ/Δt)max,and in that it comprises, in the event that the signal indicative of the state of the grid indicates the presence of a voltage dip:
calculating at least one signal indicative of a forward/backward oscillation of the nacelle, calculating a tower damping pitch rate signal in accordance with the signal indicative of the forward/backward acceleration of the nacelle, and calculating a pitch rate command based on the tower damping pitch rate command and on the minimum dip pitch rate limit (Δβ/Δt)min.