A method for predicting the deposition of ice on a rotor blade of a wind turbine and its use

摘要

Embodiments describe a method for predicting the deposition of ice on a rotor blade (111, 112) of a wind turbine (100) and its use. The method includes setting an upper threshold (So) and / or a lower threshold (Su) for a system size (S) associated with the mass of the rotor blade (111, 112) and / or the mass of an ice lug (1) of the Rotor blade (111, 112) is related; acquiring system size data during a detection period (T); performing a compensation calculation of the graph for a prediction period (Δt1 ', Δt2', Δt3 ') from the system quantity data acquired during a sub-period (Δt1, Δt2, Δt3) of the detection period (T) to obtain a prediction curve (N1, N2 , N3); performing at least one further compensation calculation of the curve for a further prediction period (Δt1 ', Δt2', Δt3 ') from the system quantity data acquired during another sub-period (Δt1, Δt2, Δt3) of the detection period (T) to obtain another one Prediction curve (N1, N2, N3); determining whether or not the upper threshold (So) of one or more of the prediction curves (N1, N2, N3) is exceeded in the future and / or not the lower threshold (Su) of one or more of the prediction curves (N1 , N2, N3) in the future; and outputting the result of the determination.