A blade access arrangement for a rotor blade of a wind power plant having a tower, the arrangement including a platform, a tower guide for guiding the platform against the tower, a bar arrangement capable of being displaced in relation to the platform and connecting the platform with the tower guiding. The blade access arrangement including a hoisting arrangement for hoisting the blade access arrangement up and down, where the bar arrangement includes an extension beam connected to the bar arrangement via a hinge.

The present disclosure relates to cabins (100) and methods (200, 300) for performing maintenance on wind turbines (10). A cabin (100) for performing maintenance on an uptower component (110) of a wind turbine (10) is provided. The cabin (100) is configured to support an operator and/or a tool inside the cabin (100). The cabin (100) is attachable to the wind turbine (10) such that it is rotatable with respect to the uptower component (110).

An integrated robotic repair system for repairing a surface is described. The said system comprising: a base translation system (110), said system comprising a multistage platform; a repair module (150), said module coupled to the translation system (110) to move the module (150) relative to the base translation system (110); an end effector selector system coupled to the repair module, said selector system comprising end effector repair tools (360, 362, 366), each tool (360, 362, 366) configured to undertake a repair task on the surface; and deployable legs (120), said legs (120) coupled to the base translation system (110) and configured to engage and disengage from the surface to allow the system to walk along surface.

The present disclosure is related to couplings for mechanically connecting an auxiliary component to a wind turbine tower. The couplings comprise a mounting bracket configured to be mounted on a shaft of the auxiliary component, and a tower interface configured to be arranged at an outside of the wind turbine tower and comprising a first fastener hole. The couplings further comprise a pad configured to be arranged at an inside of the wind turbine tower, and comprising a second fastener hole, wherein the first and the second fastener holes are configured to receive a fastener extending through a hole in the wind turbine tower to attach the auxiliary component to the wind turbine tower, and wherein the mounting bracket is configured to swivel about the shaft of the auxiliary component and is displaceable along a longitudinal axis of the shaft. The present disclosure further relates to methods for removing auxiliary components from a wind turbine.

A wind turbine blade maintenance platform (8) including a frame having a blade access area (20) structured and arranged to accommodate blade (6) of a wind turbine, a tower end (18), and a front end (19), and sealing means (21) structured and arranged to contact the blade (6) is described. Such a platform should allow working at the blade (6) even at rainy weather. To this end the sealing means (21) includes a drain path (25), wherein the drain path (25) opens into the blade access area (20).

A support system arranged to support equipment such as electrolysers externally on a wind turbine. A hub encircling or coextensive with a tower or transition piece of the wind turbine surrounds a central vertical axis. The hub defines at least one docking bay having mounting formations to which a support module can be releasably engaged, thereby providing an equipment platform cantilevered from the hub. Where the hub comprises a plurality of docking bays spaced apart angularly around the central axis, a corresponding plurality of support modules are engageable with the hub in a petaloid arrangement. In plan view, the docking bays correspond with respective sides of a polygon. On installation, each support module is suspended on hook formations of a docking bay and is then pivoted into engagement with other mounting formations of the docking bay. The hub can be assembled from sections around the tower in a retrofitting operation.

The invention relates to a support structure for maintenance crew for performing maintenance activities on a blade of a wind turbine. The support structure comprises two complementary sheltered workplaces, each workplace having a hinge end and a tail end. The support structure further comprises a hinge mechanism connected to the respective hinge ends of the sheltered work-places, allowing the sheltered workplaces to swivel between an open position wherein the tail ends are offset from each other, and a closed position wherein the tail ends are adjacent to each other. The sheltered workplaces also include a deformable receiving structure for sealingly receiving a blade portion between the sheltered workplaces, in the closed position thereof.

A wind turbine blade maintenance platform (8) including a frame having a blade access area (20) structured and arranged to accommodate blade (6) of a wind turbine, a tower end (18), and a front end (19), and sealing means (21) structured and arranged to contact the blade (6) is described. Such a platform should allow working at the blade (6) even at rainy weather. To this end the sealing means (21) includes a drain path (25), wherein the drain path (25) opens into the blade access area (20).

The present disclosure relates to cabins (100) and methods (200, 300) for performing maintenance on wind turbines (10). A cabin (100) for performing maintenance on an uptower component (110) of a wind turbine (10) is provided. The cabin (100) is configured to support an operator and/or a tool inside the cabin (100). The cabin (100) is attachable to the wind turbine (10) such that it is rotatable with respect to the uptower component (110).