A modular gearbox assembly for a wind turbine having improved up-tower serviceability includes a low-speed gear stage module, a separate, intermediate-speed gear stage module adjacent to the low-speed gear stage module, and a separate high-speed gear stage module adjacent to the intermediate-speed gear stage module. The gearbox assembly also includes a first flange removably connecting the intermediate and high-speed gear stage modules and a second flange removably connecting the intermediate and low-speed gear stage modules. Thus, the low-speed gear stage module converts a low-speed, high torque input from a rotor shaft of the wind turbine to a high-speed, low torque output for a generator of the wind turbine via the intermediate and high-speed gear stage modules. In addition, the first and second flanges allow for easy disassembly of the gear stage modules such that the various stages can be easily repaired, replaced, and/or inspected.

A wind turbine nacelle configured for mounting on a wind turbine tower and for supporting a rotor-supporting assembly, the nacelle comprising a main unit, and at least one auxiliary unit. The auxiliary unit accommodates a at least one component, e.g. a converter or transformer. To provide efficient transportation, lower costs and easier assembly, the operative component is suspended directly on the main unit.

A wind turbine nacelle configured for mounting on a wind turbine tower and for supporting a rotor-supporting assembly, the nacelle comprising a main unit, and at least one auxiliary unit. The auxiliary unit accommodates a at least one component, e.g. a converter or transformer. To provide efficient transportation, lower costs and easier assembly, the operative component is suspended directly on the main unit.

The present invention relates to a wind turbine blade with a blade structure comprising a surface and a load-carrying spar supporting a shell structure, wherein the blade structure comprises functionalized graphene-containing material. The present invention relates to a wind turbine concrete tower comprising a load-carrying structure extending vertically to a height, comprising functionalized graphene-containing material. The invention further relates to use of functionalized graphene-containing material in wind turbine parts. The invention further relates to a method for retrofitting a blade structure and the use of functionalized graphene-containing material in a repair system for wind turbine tower foundations. Furthermore the invention relates to use of at least one sensor containing graphene.

The present invention relates to a wind turbine blade with a blade structure comprising a surface and a load-carrying spar supporting a shell structure, wherein the blade structure comprises functionalized graphene-containing material. The present invention relates to a wind turbine concrete tower comprising a load-carrying structure extending vertically to a height, comprising functionalized graphene-containing material. The invention further relates to use of functionalized graphene-containing material in wind turbine parts. The invention further relates to a method for retrofitting a blade structure and the use of functionalized graphene-containing material in a repair system for wind turbine tower foundations. Furthermore the invention relates to use of at least one sensor containing graphene.

The present disclosure relates to supporting structures for a central frame of a direct-drive wind turbine and methods for managing such structures. A supporting structure is configured to assume a deployed configuration and a stowed configuration. In the stowed configuration, the supporting structure has a shape and size such that the supporting structure can be introduced into the central frame from an outside. In the deployed configuration, the supporting structure has one or more increased dimensions with respect to the stowed configuration, and comprises a working platform.

A wind turbine includes a nacelle, a generator housed with the nacelle, a rotor having a rotatable hub with at least one rotor blade mounted thereto, at least one shaft rotatably coupled to the hub for driving the generator, and a rotor lock arranged with the shaft(s) for locking the shaft(s) in a locked position. The wind turbine also includes a bolted-joint connection at an interface between the hub and the shaft(s). The bolted-joint connection includes a first plurality of fasteners extending through the hub, the shaft(s), and the rotor lock. As such, a load transfer path from the hub to the shaft(s) travels through each of the hub, the shaft(s), and the rotor lock so as to increase a load capacity of the interface.

The present invention relates to a water intrusion prevention system (1) mounting on a turbine blade (100) of a wind turbine. In order to exhibit excellent weather protection, the water intrusion prevention system (1) comprises a connecting means (10) adapted for removably fixing the water intrusion prevention system (1) on the turbine blade (100), further a collar sheet (20) disposed on the connecting means (10) and having a collar portion (22) extending away from the connecting means (10), the collar portion (22) constituting an upper collar sealing round about against an outer surface (101) of the turbine blade (100) if the water prevention system (1) is mounted on the turbine blade (100). In addition, the water intrusion prevention system (1) includes an umbrella sheet (30) disposed over the connecting means (10), the umbrella sheet (30) covering an upper side of the pressing means (10) and protruding laterally downwards away from the connecting means (10) round about the turbine blade (100) if the water prevention system (1) is mounted on the turbine blade (100). The umbrella sheet (30) sealingly adjoins the collar portion (22).

The present invention relates to a water intrusion prevention system (1) mounting on a turbine blade (100) of a wind turbine. In order to exhibit excellent weather protection, the water intrusion prevention system (1) comprises a connecting means (10) adapted for removably fixing the water intrusion prevention system (1) on the turbine blade (100), further a collar sheet (20) disposed on the connecting means (10) and having a collar portion (22) extending away from the connecting means (10), the collar portion (22) constituting an upper collar sealing round about against an outer surface (101) of the turbine blade (100) if the water prevention system (1) is mounted on the turbine blade (100). In addition, the water intrusion prevention system (1) includes an umbrella sheet (30) disposed over the connecting means (10), the umbrella sheet (30) covering an upper side of the pressing means (10) and protruding laterally downwards away from the connecting means (10) round about the turbine blade (100) if the water prevention system (1) is mounted on the turbine blade (100). The umbrella sheet (30) sealingly adjoins the collar portion (22).

The present disclosure relates to methods and tools for mounting and/or removing active parts of a stator of an electrical machine, e.g. a generator. The present disclosure also relates to rotors, stators and generators. A method comprises removing one or more active rotor parts of a rotor of an electrical machine when the rotor is in a removal starting position, arranging a replacement tool in a gap left by the removed active rotor parts, rotating the rotor to an alignment position such that the replacement tool is radially aligned with an active stator part to be removed, picking the active stator part to be removed with the replacement tool, rotating the rotor to an extraction position, and removing the active stator part from the rotor.