US 2015/0030449 A1 · METHOD OF OPERATING A WIND TURBINE

Abstract

Method of operating a wind turbine comprising a plurality of blades rotatable along their longitudinal axes using a pitch mechanism, and comprising one or more movable trailing edge surfaces. The method includes predicting, at a first moment in time, a high load for one or more of the blades at a second moment in time. The method further comprises actuating on one or more of the movable trailing edge surfaces of these blades such that the trailing edge surfaces have a wider range of control to counteract the predicted high loads before the second moment in time, and simultaneously pitching the blades such as not to negatively affect the operation of the wind turbine. The method furthermore comprises, at the second moment in time, actuating the one or more movable trailing edge surfaces of the at least one or more blades to counteract the high loads.

Claims20

Dependent claims

A method of operating a wind turbine comprising a plurality of blades, each of the blades being rotatable along its longitudinal axis using a pitch mechanism, and each of the blades comprising one or more movable trailing edge surfaces, the method comprising:

at a first moment in time predicting a first high load for a first of the blades at a second moment in time,
before the second moment in time, actuating one or more of the movable trailing edge surfaces of the first blade such that the trailing edge surfaces of the first blade have a wider range of control to counteract the predicted first high load, and simultaneously pitching the first blade such as not to negatively affect the operation of the wind turbine, and
at the second moment in time, actuating the one or more movable trailing edge surfaces of the first blade to counteract the first high load.

at a first moment in time predicting a first high load for a first blade at a second moment in time, and predicting a second high load for a second blade at a third moment time,
before the second moment in time, actuating on one or more of the movable trailing edge surfaces of the first blade such that they assume a position wherein they have a wider range of control to counteract the predicted first blade high load,
before the third moment in time, actuating on one or more of the movable trailing edge surfaces of the second blade such that they assume a position wherein they have a wider range of control to counteract the predicted second blade high load,
and simultaneously pitching the first and second blades of the wind turbine such that the operation of the wind turbine is substantially not negatively affected,
at the second moment in time, actuating the one or more movable trailing edge surfaces of the first blade to counteract the predicted first blade high load, and
at the third moment in time, actuating the one or more movable trailing edge surfaces of the second blade to counteract the predicted second blade high load.

3 more elements

Dependencies are inferred from the claim text.

Method of operating a wind turbine

Life of this patent

Method of operating a wind turbine

Life of this patent

Abstract

Claims20