ASYMMETRIC LOAD CONTROL FOR TORSION FATIGUE REDUCTION IN A WIND TURBINE TOWER

摘要

A method and system for reducing a torsional movement and/or a torsionalloading of a tower of a wind turbine is disclosed includes generating a towertorsionsignal with a detection system and providing the signal to an asymmetric loadcontrolassembly. The tower torsion signal may correspond to an actual torsionalmovement ofthe tower or a torsional loading of the tower. The asymmetric load controlassembly isconfigured to mitigate an asymmetric load acting on the wind turbine using thetowertorsion signal.