A WIND TURBINE, A METHOD FOR DAMPING EDGEWISE OSCILLATIONS IN ONE OR MORE BLADES OF A WIND TURBINE BY CHANGING THE BLADE PITCH AND USE HEREOF.

摘要

A wind turbine (1) comprising a rotor (4) including one or more pitchable blades (5), and detection means (21) for detecting edgewise oscillations in one or more of said blades (5). The wind turbine (1) is characterized in that the wind turbine (1) comprises control means (25) for changing the pitch angle of one or more of the blades (5) if the detection means (21) detects edgewise oscillations in one or more of the blades (5), hereby damping or eliminating the edgewise oscillations. A method for damping edgewise oscillations in one or more blades (5) of a wind turbine (1) and use hereof are also described.