A device for the reduction of loads in the drive train (10-30) of a wind turbine is proposed, with a machine frame (60), wherein the sensor means (80, 82) characterizing for detecting at least one of vibrations and / or misalignments in the drive train (10-30) size, controllable damping means (25) for generating at least one actuating torque which compensates for at least one of the load assigned moment (M) in the drive train (10-30), and drive means (70) for controlling the damping means (25) based on the by the sensor means detected at least one size are provided. The invention also relates to a corresponding method.