Method for the emergency braking of a wind power plant and a wind power plant with a rotor blade pitch control for emergency braking
AssigneeNordex Energy GmbH
InventorWinulf Machold
Life of this patent
Estimating the term…
Abstract
Method for the emergency braking of a wind power plant, in which at least one rotor blade of the wind power plant is adjusted into its feathering position, wherein a first phase, in which the at least one rotor blade is adjusted with a first speed, and a second phase, in which the at least one rotor blade is adjusted as of a predetermined first blade pitch angle with a second speed, which is increased until a maximum speed is reached and/or until a second determined blade pitch angle is reached.
Claims15
A method for the emergency braking of a wind power plant, in which at least one rotor blade of the wind power plant is adjusted into its feathering position, characterized by:
- a first phase, in which the at least one rotor blade is adjusted with a first speed, and a second phase, in which the at least one rotor blade is adjusted as of a predetermined first blade pitch angle with a second speed, which is increased until a maximum speed is reached and/or until a second determined blade pitch angle is reached.
3 The method according to claim 1, characterized in that the second speed is increased continuously or gradually in the second phase.
A wind power plant with at least one rotor blade and at least one rotor blade pitch device, which can set the blade pitch angle for the at least one rotor blade and can move the at least one rotor blade into its feathering position upon receipt of a control signal for an emergency braking, characterized in that the rotor blade pitch device adjusts the rotor blade with a first speed during a pitch control of the at least one rotor blade into its feathering position in a first phase and as of a first predetermined blade pitch angle adjusts the rotor blade in a second phase with a second speed, which is increased until a maximum speed is reached and/or a second predetermined pitch control angle is reached.
Dependencies are inferred from the claim text.