Siemens Gamesa Renewable Energy A/s

Nikolai Bak Grishauge

Per Nielsen

Jacob Djernes Madsen

John Nielsen

Kasper Koops Kratmann

Harald Stecher

Yannick Cao Van Truong

Jacob Madsen

A method for treatment using a cutting arrangement includes providing a rotor blade of a wind turbine and attaching an alignment tool to the rotor blade. The alignment tool includes at least one fixation means for fixing the alignment tool to proximate a trailing edge of the rotor blade that is a structure attachable to a first surface and a second opposing surface of the rotor blade. The alignment tool further includes at least one guiding structure operably connected to the fixation means that is configured to embrace the leading edge of the rotor blade and includes at least one groove or at least one edge that provides guidance for a cutting edge of a cutting apparatus. The method includes treating the rotor blade using the cutting apparatus, in which the cutting edge of the cutting apparatus is guided by the at least one guiding structure of the alignment tool.

Alignment tool, cutting arrangement and method for treatment of a workpiece

Provided is a rotor blade of a wind turbine including a leading edge section with a leading edge and a trailing edge section with a trailing edge, wherein the leading edge and the trailing edge divide the surface of the rotor blade into a suction side and a pressure side. The rotor blade further includes a blade shell for defining the outer shape of the rotor blade and a heating mat for anti-icing and/or deicing purposes which is arranged upon the blade shell. In the outboard region of the rotor blade, the heating mat is substantially or completely covered by a protective shield made of an electrically insulating polymer material. Use of a protective shield made of electrically insulating polymer material for electrical insulation of a heating mat in particular, against lightning strikes is also provided.

Insulation of a heating mat of a wind turbine blade

Provided is an alignment tool for a cutting arrangement including a cutting apparatus with a cutting edge for treatment of a workpiece, especially a rotor blade of a wind turbine, in which the alignment tool includes at least one fixation means for fixing the alignment tool to the workpiece and at least one guiding structure to guide the cutting edge of the cutting tool.

A protective shield for a rotor blade of a wind turbine is provided. The shield protects the leading edge section of the rotor blade from erosion, and covers at least a part of the leading edge of the rotor blade. The shield is preformed with a shape which approximately corresponds to the contour of the leading edge section where it is destined to be mounted to. The shield includes a mark which allows to accurately position the shield at a predetermined position on the surface of the rotor blade or which allows to accurately position a tool at a predetermined position on the surface of the shield. A method of accurately positioning a protective shield on the surface of a rotor blade of a wind turbine and a method of documenting how precisely the shield has actually been attached to the surface of the rotor blade is also provided.

Protective shield with positioning mark

A method for on-site repairing of a surface of a component in a wind turbine is provided. In the method, a digital model of the surface is generated using a scanning device. The digital model represents the surface in damaged state. Thereafter, using a processor, a repair scheme for the surface based on the digital model and on a desired state of the surface is generated. The desired state represents a post-repair state of the surface. Consequently, the repair scheme is provided to a 3D printing arrangement. Finally, in the method, one or more selected materials are printed, using the 3D printing arrangement, on the surface to be repaired, wherein the printing is performed according the repair scheme and results in repair of the damaged surface.

Growing community of inventors

Nibe, Denmark

Nikolai Bak Grishauge