The disclosure relates to a mounting frame, an energy storage unit, a pitch system, a wind turbine and a method. The mounting frame for mounting accumulators in a hub includes: a base having a predetermined thickness, wherein the base includes a mounting surface in a thickness direction of the base; and two or more accumulator mounting elements disposed on the mounting surface at intervals, wherein each accumulator mounting element includes a supporting assembly and a holding assembly connected to the supporting assembly, the supporting assembly is connected to the mounting surface and extends in the thickness direction, and the holding assembly is adapted to clamp and fix the accumulator such that all the accumulators in the hub are mounted to the mounting frame.

Provided is a fluid film bearing, for a rotor hub in a wind turbine, including a first and second part rotatably connected to each other, wherein the first part forms a first annular sliding surface that extends in the circumferential direction of the bearing along the first part, wherein the second part includes a support structure and first pads distributed along the circumference of the support structure, wherein a respective pad sliding surface of each of the first pads or of a first subgroup of the first pads supports the first annular sliding surface, wherein each first pad includes a mounting section that is mounted to a backside of the support structure, a contact section that is either forming the respective pad sliding surface or carrying a coating that forms the respective pad sliding surface and a connecting section that connects the contact section with the mounting section.

A platform assembly for a hub of a wind turbine is configured to provide a working surface inside the hub. The platform assembly includes a first platform coupled to a hub access structure, wherein the hub access structure extends in an axial direction between a nacelle of the wind turbine and the hub and provides access from the nacelle to the hub.

A rotor hub of a wind turbine comprising a hub housing, which has a plurality of connecting flanges, which are each adapted for connection of a rotor blade, wherein each of the rotor blades is coupled to a pitch drive for rotating the rotor blade, wherein the pitch drive is connected to an arrangement of electrical control devices, which are adapted to control the pitch drive. The arrangement of the control devices is provided in a module as a structural unit, the module being connected as a whole to the hub housing.

A rotor blade for addressing the deflection of rotor blades of a wind turbine. The rotor blade includes a plurality of exterior surfaces defining a blade body having a pressure side, a suction side, a leading edge and a trailing edge. The blade body extending between a blade tip and a blade root. The blade body including a breakaway tip portion defined by a predetermined breaking point. The breakaway tip portion is configured to break away from the remaining portion of the blade body when subject to a predetermined tower strike load. A wind turbine including the rotor blade configuration is further disclosed.

A lightning current transfer unit for a wind turbine, the wind turbine comprising a first part and a second part being rotatable relative to each other, wherein the lightning current transfer unit is arranged to provide electrical contact between the first and second parts, the lightning current transfer unit comprising: a first current transfer portion comprising a first slider and configured to be electrically coupled to a first electrically conducting slideway of the first part of the wind turbine, the first slider being rotatable relative to the first slideway; a second current transfer portion configured to be electrically coupled to an electrically conducting portion of the second part of the wind turbine; a first main spring biasing the first slider towards the first slideway; wherein the first slider comprises: a primary contact biased towards the first slideway by the first main spring; a secondary contact arranged to move relative to the primary contact; and a secondary spring arranged between the first main spring and the secondary contact such that the secondary spring biases the primary contact away from the first slideway and biases the secondary contact towards the first slideway.

A wind or tidal turbine blade having an attachment, the attachment including: a support portion of the turbine blade, the support portion having opposite surfaces; an insert adapted to mount a bolt for attaching the support portion to another structure; and a mounting for fitting the insert to the support portion, the mounting including a layer extending over a front face of the insert and bonded to the opposite surfaces of the support portion on opposite sides of the insert, the layer permitting passage of a bolt therethrough to or from the insert.

The wind turbine includes a wind driven turbine wheel rotatable about a central axis that has blades with streamers of other articles to fill the space between the blades. A set of streamers can be attached to the trailing edge of the blades at one end and including a free end wherein the free end is disposed in a space defined between adjacent blades. The streamers can also be attached to spokes.

Wind turbine comprising a hub carrying a plurality of blades, the hub being rotatably mounted on a frame, the frame extending forward into the hub, wherein the frame comprises a manhole arranged in an upper side of the portion of the frame extending forward into the hub and the frame being dimensioned such that an average-size adult human can move around through it at least up to the manhole.

The blade root or the internal structure of the blade comprise joining elements for joining to the hub disposed between lamination sheets, consisting of a plurality of inserts, designed to receive a fixing element related to the hub, which facilitate the coupling of the blade to the wind turbine hub. It incorporates fibre bands of compact, elongated and enveloping configuration which grip the inserts configuring assemblies embedded between the lamination sheets, wherein the fibre bands guarantee the progressive progression of stresses between blade and hub.