Abstract: The disclosure relates to the methods and devices for wind turbine blade mechanical de-icing. The proposed method for de-icing of a wind turbine blade, includes the steps of positioning a wind turbine blade in a substantially horizontal position; pulling a line one over the wind turbine blade; and pulling both ends of the line one sideways parallel to the wind turbine blade. The line one can be provided with a line two attached to it and the method may further include the step of pulling up a joint connecting the lines one and two to the leading edge and using the line one to slide the joint position over the leading edge of the blade. According to an embodiment an elastic sliding plate configured to prevent line entanglement may be attached at the line one and two joint position.

Abstract: The invention relates to wind turbine blade and tower maintenance devices, which can be used for semi- or fully-automated maintenance, including cleaning, de-icing, and painting of wind turbine blades and tower.

Abstract: An offshore wind turbine blade and tower maintenance devices and systems, more particularly, to the system for service tools positioning relative to the offshore wind turbine blade and tower. An arrangement for lowering and raising service tools used for offshore wind turbine blade and tower maintenance, having: a truss system, a rigging and a rigging pulling in and letting out means. The truss system, includes booms, pivotally attached to a supporting means, which are adapted to be leaned against or releasably fixed to a wind turbine tower or wind turbine tower mooring elements; wherein the rigging and a rigging pulling in and letting out means are operably connected with the truss system, so to allow lowering and raising service tools used for offshore wind turbine blade and tower maintenance.

Abstract: A rotating wind turbine blade optical inspection devices and systems. The system for inspection, having: a camera; a rotatable device designed to controllably rotate camera along axis, not camera's lens axis of rotational symmetry; a laser distance sensor or a dynamic vision sensor and a computer system; the camera, the rotatable device and the laser distance sensor or the dynamic vision sensor operably connected with the computer system; wherein the camera is adapted to be mounted on the rotatable device; the distance or the vision sensors' optical axis is directed at a set distance from the camera's optical axis; wherein the computer system: (i) to receives a signal from the distance or vision sensors; (ii) to determines camera's activation time based on the signal from the distance sensor or vision sensors and a pre-set adjustable delay time; (iii) to activate the camera acquiring an image of a blade area inspected.

Abstract: A rotating wind turbine blade optical inspection devices and systems. The system for inspection, having: a camera; a rotatable device designed to controllably rotate camera along axis, not camera's lens axis of rotational symmetry; a laser distance sensor or a dynamic vision sensor and a computer system; the camera, the rotatable device and the laser distance sensor or the dynamic vision sensor operably connected with the computer system; wherein the camera is adapted to be mounted on the rotatable device; the distance or the vision sensors' optical axis is directed at a set distance from the camera's optical axis; wherein the computer system: (i) to receives a signal from the distance or vision sensors; (ii) to determines camera's activation time based on the signal from the distance sensor or vision sensors and a pre-set adjustable delay time; (iii) to activate the camera acquiring an image of a blade area inspected.