Abstract: A method of controlling a wind turbine having a tower and a rotor at which plural rotor blades are mounted includes: determining, in particular in real time, a damping characteristic of at least one vibration mode related to the wind turbine; and controlling the wind turbine based on damping characteristic.

Abstract: A nacelle for a wind turbine is provided, whereby the nacelle includes a nacelle support structure inside of the nacelle, to which at least one tuned mass damper is attached, whereby the at least one tuned mass damper is tuned to target at least one mode of motion of the nacelle in a frequency range below 50 Hz.

Abstract: A vibration suppression system and method for a wind turbine comprising blades is provided. The system comprises, for each blade, a stabilization system comprising a gyroscope with a control axis extending in a first direction, a first rigid body control axis extending in a second direction different from the first direction, a second rigid body control axis extending in a third direction different from the first and second directions and a flywheel rotatable in respect of the control axis and free to move in respect of at least one of the rigid body control axes. The stabilization system comprises an actuator to apply a torque over the gyroscope, and a respective sensor to detect the motions of each blade. The suppression system comprises a control device for controlling the actuation of the actuators according to said detections, in order to suppress unwanted motions of the blades.

Abstract: The disclosed relates to a vibration suppression system and method, for a wind turbine comprising blades. The system comprises, for each blade, a stabilization system comprising a gyroscope with a control axis extending in a first direction, a first rigid body control axis extending in a second direction different from the first direction, a second rigid body control axis extending in a third direction different from the first and second directions and a flywheel rotatable in respect of the control axis and free to move in respect of at least one of the rigid body control axes. The stabilization system comprises an actuator to apply a torque over the gyroscope, and a respective sensor to detect the motions of each blade. The suppression system comprises a control device for controlling the actuation of the actuators according to said detections, in order to suppress unwanted motions of the blades.

Abstract: The present invention relates to a responsive hydrogel which is chemically crosslinked, has a porous photonic crystal structure and contains biomolecule-specific detection groups.