A system and method are provided for controlling a wind turbine. Accordingly, a controller of the wind turbine detects a loss of traction of the slip coupling based on a difference between data indicative of a rotor operating parameter and data indicative of a generator operating parameter. The controller then determines an angle of slip corresponding to the loss of traction as a function of the difference. Based, at least partially on the angle of slip, a degradation value for the slip coupling is determined. A control action is implemented based on the degradation value.

Provided is a busbar arrangement for a wind turbine generator, the wind turbine generator including a stator and a rotor arranged to rotate around an axis. The busbar arrangement includes a plurality of busbars for transporting electric power away from the generator, wherein each busbar is arranged at an individual radial distance from the axis and at an individual axial position along the axis. Furthermore, a wind turbine and a method of manufacturing a busbar arrangement is provided.

A light-emitting assembly with a micro hydraulic power generator includes a power generation module and a light-emitting module. The power generation module includes a housing, a coil module and an impeller. An accommodating space inside the housing is divided by a transverse baffle therein into two cavities, respectively a coil cavity and an impeller cavity. A side wall of the impeller cavity is provided with at least one water inlet. At least one internally recessed portion is provided at a connection portion between the transverse baffle and an outer wall of the coil cavity, and the transverse baffle defines a water outlet at a portion positionally corresponding to the internally recessed portion. The coil module is arranged in the coil cavity in a sealed manner by a colloidal material. The impeller is placed in the impeller cavity, the impeller can be rotated by an external force.

A wind turbine blade assembly comprising: a first wind turbine blade portion having a first attachment portion and a first metallic plate, a second wind turbine blade portion having a second attachment portion and a second metallic plate, and at least one tension member for coupling to the first and second attachment portions to join the first wind turbine blade portion to the second wind turbine blade portion, wherein the first and second metallic plates are configured to abut in compression due to tension in the tension member when the first wind turbine blade portion is joined to the second wind turbine blade portion with the at least one tension member. Also, a method of joining blade portions to construct a blade.

A pitch energy module comprising one or more ultracapacitors storing electrical energy for a wind turbine emergency pitch energy event. The pitch energy module replaces at least one battery within a battery housing of a wind turbine and interfaces with the existing battery wiring harness to communicate with a control system of the wind turbine. The pitch energy module is installed without further modification to the battery housing or the battery wiring harness.

An anti and/or de-icing blade and manufacturing method for said blade including a pressure side shell and a suction side shell, the shells including at least one electrical connector layer extending from the leading edge towards the trailing edge, at least one heating elements layer electrically in contact with the electrical connector layer, glass fabric layers at least inwardly in contact with the electrical connector or with heating elements layer, a connector component extending transversally through the glass fabric layers and being electrically connected with the electrical connector layer and with a metallic block which is drilled by an inter-connector so that the electrical connector layers from each shell are electrically connected and the blade is able to be heated when electrically fed from power source.

A tower for a wind turbine is disclosed, said wind turbine comprises the tower, a nacelle and a rotor having at least one rotor blade. The tower is configured for supporting the nacelle and the rotor on a support system. The tower itself may be structured as having an upper top end for supporting the nacelle and a lower support end for being placed on the support system. Electric energy generated is transported via power cables from the nacelle to an electric grid, preferably via power electronic components, switches and/or transformers. Furthermore, the nacelle may rotate around the yaw axis according to the current wind direction. Hence, the rotation of the nacelle introduces a twist into the power cables, wherein said twist causes a deviation (shortening) in the length of the power cables. Furthermore, the tower comprises at least one radial cable guiding device for receiving the cable and a cable support arrangement for supporting the cable in a beneficial manner. Additionally, the tower comprises anti-torsion fixation means configured for reducing and/or preventing a propagation of a cable twist of the cables of a hanging portion into power cables of a loop portion. The power cables comprise a hanging portion having a cable axis, a cable loop portion having a horizontal cable loop, and the supported portion being at least partially supported by the cable support arrangement.

Improvements relating to wind turbine blades A wind turbine blade is described that comprises a main blade and one or more separate edge modules attached to the main blade module. The main blade module defines a main body of the blade, and the separate edge module(s) defines at least part of a leading edge or a trailing edge of the blade. A down conductor for a blade lightning protection system is embedded within the edge module.

A rotary machine includes a rotor rotatable about a rotation axis and a stator mechanically divided into stator segments, each covering a respective section in relation to the rotation axis. Coils of one individual multi-phase rotary system are respectively arranged in the stator segments, each having terminals which connect phase lines of an individual multi-phase rotary system and are connected to the coils. A converter unit includes multiple subunits operated independently of one another, each forming an individual multi-phase rotary system. The number of phases of the subunits corresponds to the number of stator segments. The terminals of the stator segments are each connected to a subunit. The stator segments form groups of directly successive stator segments when viewed about the rotation axis. The terminals of the stator segments are connected to the same sub-unit within each group, but connected to different sub-units from group to group of stator segments.

Provided is a busbar arrangement for a wind turbine generator, the wind turbine generator including a stator and a rotor arranged to rotate around an axis, the arrangement comprising a plurality of busbars for transporting electric power away from the generator, wherein each busbar is arranged at an individual radial distance from the axis and at an individual axial position along the axis. Furthermore, a wind turbine and a method of manufacturing a busbar arrangement is provided.