WIND TURBINE WITH A LOAD CONTROLLER

摘要

The invention provides a wind turbine, a control system for a wind turbine and a method for controlling a wind turbine where asymmetry in load on the rotor is compensated by individual pitching by comparing a load distribution over the rotor plane with a threshold value. To avoid unnecessary compensation, the threshold value is adjusted based on a loading of the wind turbine or based on climate conditions under which the turbine operates.

主权项

1. A wind turbine comprising a rotor with at least one rotor blade, the rotor being rotatable about a rotor axis and defines a rotor plane, the wind turbine further comprising a load control system adapted to determine a load distribution on the rotor plane and to determine a blade pitching value for each rotor blade individually to thereby compensate for asymmetry in the load distribution, wherein the load control system is adapted to carry out the compensation based on a difference between the determined load distribution and a threshold value, and wherein the load control system is adapted to determine the threshold value based on at least one of a loading of the wind turbine and climate conditions.