Verfahren zum Steuern einer Windturbine

Details

Veröffentlichungs-Nr.

EP3734063

Aktenzeichen

EP19172009

Anmeldetag

30. April 2019

Veröffentlichung

1. März 2023

Erteilung

1. März 2023

Rechtsraum

EP

IPC

F03D7/04// F03D7/02

Abstract

The invention relates to a method for controlling a wind turbine (100) using an estimated wind speed (V̂_W), the wind turbine (100) having a rotor rotatable with a variable rotor speed (n) and having rotor blades (108, 158) with adjustable pitch angles (θ₁, θ₂and θ₃), and a generator (202, 130) adapted to control a generator torque (m) or a generator output power (P), the method comprises the steps measuring the rotor speed (n), determining a common pitch angle (θ) representative of at least one or all pitch angles (θ₁, θ₂and θ₃) of the rotor blades (108, 158), determining the generator torque (m) or an output power (P) of the generator (202, 130), estimating the wind speed by means of an observer (204), wherein the observer (204) uses a model of the wind turbine (100) as an observer model (208), uses as input variables, the measured rotor speed (n), the determined common pitch angle (θ) and the determined generator torque (m) or the determined output power (P), and incorporates expected variations of the wind as at least one stochastic variable (V_arV_w).

Anmelder

Firma

Wobben Properties GmbH

Land

🇩🇪 Deutschland

Fachgebiete