US 2026/0298199 A1 · WIND TURBINE PITCH AND YAW CONTROL

Abstract

A method for reducing vibrations of a wind turbine. The wind turbine comprises a wind rotor with at least a first rotor blade and a second rotor blade. The method comprises adjusting a pitch angle of at least one rotor blade of the first and second rotor blades so that the pitch angle of the first rotor blade and the pitch angle of the second rotor blade differ by at least 30 degrees, the adjusting of the pitch angle occurring when the wind turbine is in a state where yawing of the wind rotor is possible. And the method comprises adjusting a yaw angle of the wind rotor to a preferred yaw position, the yaw angle being at least partially adjusted during or after the adjusting of the pitch angle. Also, a data processing device or system, a control system, a wind turbine, a wind farm and a computer program.

Claims20

Dependent claims

A method for reducing vibrations of a wind turbine, the wind turbine comprising a wind rotor comprising at least a first rotor blade and a second rotor blade, the method comprising:

adjusting a pitch angle of at least one rotor blade of the first and second rotor blades so that the pitch angle of the first rotor blade and the pitch angle of the second rotor blade differ by at least 30 degrees, wherein the adjusting of the pitch angle occurs when the wind turbine is in a state where yawing of the wind rotor is possible;
and
adjusting a yaw angle of the wind rotor to a preferred yaw position, wherein the preferred yaw angle is at least partially adjusted during or after the adjusting of the pitch angle.

A wind turbine comprising:

a wind rotor comprising at least a first rotor blade and a second rotor blade with each rotor blade of the wind rotor being rotatable about a pitch axis for adjustment of a respective pitch angle of the rotor blade;
a pitch drive system configured to adjust the pitch angle of each rotor blade of the wind rotor;
and
a wind turbine controller configured to control the pitch drive system to make pitch angle adjustments including to adjust a pitch angle of at least one of the first and second rotor blades so that the pitch angle of the first rotor blade and the pitch angle of the second rotor blade differ by at least 30 degrees when the wind turbine is in a state where yawing of the wind rotor is possible, and the wind rotor has a yaw angle thereof adjusted to a preferred yaw position at least partially occurring during or after the pitch angle adjustments.

1 more element

Dependencies are inferred from the claim text.

Wind turbine pitch and yaw control

Life of this patent

Wind turbine pitch and yaw control

Life of this patent

Abstract

Claims20