Wind turbine, yaw system controller and yaw system for a wind turbine and method of reducing the acting on such a yaw system

摘要

A method for reducing the loads acting on a wind turbine yaw system due to yawing moments which are induced to the yaw system by a rotor which comprises at least one rotor blade with a pitch control system is provided. In the method, the yawing moment which is induced to the yaw system by the rotor is determined and the pitch of the at least one rotor blade is set based on the detected yawing moment such that the determined yawing moment is reduced.