Abstract: Provided is a transition piece for a wind turbine, to connect a wind turbine to a foundation, wherein the transition piece includes a connection area to be connected to a foundation.

Abstract: A lightning protection system of a wind turbine is provided, including a blade lightning conductor arranged in a rotor blade of the wind turbine to extend into the hub, a stationary conductor to provide a blade grounding path to ground during a lighting strike, a brush arranged to electrically connect the blade lightning conductor and the stationary conductor, and a discharge means arranged to provide a separate discharge path from the blade lightning conductor to ground. Furthermore, a wind turbine, and a method of equipping a wind turbine with a lightning protection system, is also provided.

Abstract: A spherical body inspection apparatus including a support arrangement realized to support a spherical body during an inspection procedure; a probe arrangement comprising a plurality of ultrasonic testing probes arranged about the spherical body such that the ultrasonic testing probes target a common test point at the surface of the spherical body; and a displacer for effecting at least one relative rotational displacement between the spherical body and the probe arrangement. Also described is a method of inspecting a spherical body.

Abstract: A mold for manufacturing a component for a wind turbine, in particular a rotor blade, is provided. The mold includes a flexible mold part configured for driving staples into the same, the staples being used to attach a fiber material to the mold. The mold may include a lower mold half and an upper mold half. The mold may be made of a polymer material, a plastic material, a metal alloy or a combination thereof.

Abstract: A charging system with a least one high temperature thermal energy exchange system is provided. The high temperature thermal energy exchange system includes at least one heat exchange chamber with chamber boundaries which surround at least one chamber interior of the heat exchange chamber, wherein the chamber boundaries include at least one inlet opening for guiding in an inflow of at least one heat transfer fluid into the chamber interior and at least one outlet opening for guiding out an outflow of the heat transfer fluid out of the chamber interior. At least one heat storage material is arranged in the heat exchange chamber interior such that a heat exchange flow of the heat transfer fluid through the heat exchange chamber interior causes a heat exchange between the heat storage material and the heat transfer fluid.

Abstract: A method for operating a heat exchange system is provided. The heat exchange system includes at least one heat exchange chamber with heat exchange chamber boundaries which surround at least one heat exchange chamber interior of the heat exchange chamber, wherein the heat exchange chamber boundaries comprise at least one first opening for guiding in an inflow of at least one heat transfer fluid into the heat exchange chamber interior and at least one second opening for guiding out an outflow of the heat transfer fluid out of the heat exchange chamber interior, at least one heat storage material is arranged in the heat exchange chamber interior such that a heat exchange flow of the heat transfer fluid through the heat exchange chamber interior causes a heat exchange between the heat storage material and the heat transfer fluid.

Abstract: A test rig to test a radial bearing including a first raceway, a second raceway and a plurality of rolling elements which are arranged between the first raceway and the second raceway. The test rig includes a section of the first raceway, a section of the second raceway and one or several of the plurality of rolling elements, wherein the section of the first raceway is arranged opposite to the section of the second raceway, the rolling elements are arranged between the section of the first raceway and the section of the second raceway, and the rolling elements are in contact with the sections of the first raceway and second raceway, and a means for applying load on the section of the first raceway and means for moving the section of the first raceway and the section of the second raceway relative to the one or several rolling elements.

Abstract: Provided is a support structure for a wind turbine blade and a method for manufacturing a support structure for a wind turbine blade The support structure includes a frame structure including a first section and a second section which are spaced apart with respect to each other along a first direction such that a section of a wind turbine blade is arrangeable in-between the first section and the second section. The support structure further includes two seesaw elements being pivotably fixed to a respective section and having a respective pivoting axis parallel to the first direction and four belt elements being fixed with their respective first end to a respective end of the respective seesaw element Furthermore, a respective second end of the respective belt element are each fixed to the respective other section of the frame structure.

Abstract: The disclosed describes a method of operating a wind turbine yaw assembly comprising a yaw ring and a number of yaw drive units, wherein a yaw drive unit comprises a pinion arranged to engage with the yaw ring, which method comprises the steps of identifying a damaged tooth on the yaw ring; providing damage descriptor parameters to the yaw drive controller; and controlling a yaw drive unit on the basis of the damage descriptor parameters to reduce the force exerted by its pinion on a damaged tooth. The disclosed further describes a wind turbine yaw assembly, a wind turbine, and a computer program product.

Abstract: A grease filter for filtering grease and the use of the grease filter for a bearing in a wind turbine is provided. A grease filter is disclosed for filtering grease used for lubrication. The grease filter includes and inlet to allow the grease to enter the filter and an outlet to allow the grease to leave the filter, whereby the grease flows from the inlet towards the outlet along a flow path. The filter includes at least one magnetic element present in the flow path of the grease to attract magnetic particles present in the grease and deviate the particles out of the grease flow path.

Abstract: Wind turbine, having a tower and a nacelle mounted rotatably around a center axis of the tower on top of the tower, the tower having at least one tower lift for transportation and/or at least one tower climbing means, in particular a ladder, for climbing between the bottom of the tower and at least one tower platform inside the tower which allows access to an access arrangement for the nacelle, characterized in that the access arrangement includes an access platform suspended below a bed frame of the nacelle and rotatable with the nacelle and an access climbing means, in particular stairs, and/or an access lift leading from the access platform to an interior of the nacelle.

Abstract: A manufacturing arrangement realized for manufacturing a rotor blade, including a pair of tracks arranged along the longitudinal sides of a blade mold; a first gantry assembly realized to span the track pair and to carry a first tool arrangement including at least a fiber distributor for distributing a fiber material into the blade mold; a second gantry assembly realized to span the track pair and to carry a second tool arrangement realized to carry a supply of fiber material and to provide the fiber material to the fiber distributor; and a control arrangement realized to effect a coordinated movement of the gantry assemblies along the track pair and to coordinate the operation of the second tool arrangement with the operation of the first tool arrangement is provided. A fiber mat magazine; a manufacturing line; a method of manufacturing a rotor blade; and a rotor blade, is also provided.

Abstract: Provided is a thrust bearing for a wind turbine including a thrust collar rotatable around a longitudinal axis of the thrust bearing and having a thrust surface transversally oriented with respect to longitudinal axis, a support structure fixed with respect to the longitudinal axis of the thrust bearing, a bearing pad contacting the thrust surface of the thrust collar and movable on a pad seat provided on the support structure, a spring element interposed between the bearing pad and the support structure.

Abstract: A wind turbine, including a hub, a blade, a blade bearing which is connected to the hub and which enables a rotational movement of the blade relative to the hub, and an adjustment device for adjusting a pitch angle of the blade, wherein the adjustment device includes at least one actuator and wherein an effective direction of an adjustment force of the at least one actuator when adjusting the pitch angle of the blade is tilted in an angle relative to a bearing plane of the blade bearing. One advantage of the wind turbine is that the adjustment force for adjusting the pitch angle is transmitted directly into the blade bearing or the bearing plane. Further, an offset of the attacking point of the adjustment force can be reduced or completely avoided.

Abstract: A wind turbine with nacelle includes an electrical generator, a cooling circuit including at least two cooling fans for channeling a fluid cooling medium from the electrical generator to an outer wall of the nacelle and a draining device for channeling drainage water from the cooling fans to an outer wall of the nacelle. The draining device includes at least a first draining portion connecting the cooling fans to an inside of the nacelle and at least a second draining portion for receiving drainage water from the first respective draining pipe and channeling the drainage water to the outer wall of the nacelle.

Abstract: A rotor blade of a wind turbine including at least one vortex generator is provided. The vortex generator is attached to the surface of the rotor blade and is located at least partially within the boundary layer of the airflow flowing across the rotor blade. The vortex generator is exposed to a stagnation pressure, which is caused by the fraction of the airflow passing over the vortex generator and of which the magnitude depends on the velocity of the fraction of the airflow passing over the vortex generator. The vortex generator is arranged and prepared to change its configuration depending on the magnitude of the stagnation pressure acting on the vortex generator. Furthermore, an aspect relates to a wind turbine for generating electricity with at least one such rotor blade.

Abstract: A wind turbine, including a support structure and a thrust bearing having a bearing pad which includes a piston and which is movably connected to the support structure, a spring element which is configured to resiliently support the bearing pad relative to the support structure, wherein a pad portion of the bearing pad and/or the bearing pad itself is configured to tilt and to move translationally relative to the support structure, and wherein a gap is provided between the piston and the support structure. The piston limits the movement of the bearing pad. Thus, reliable and well defined movement limits are provided. Furthermore, a broad spectrum of spring parameters is available since the movement may be restricted by the piston and not necessarily be the spring element.

Abstract: Provided is a method of controlling a rotational speed of a rotor of a wind turbine having a rotor with blades connected thereon, at least one blade including a blade profile changing equipment, the method including: changing the blade profile dependent on a rotational speed deviation of an actual rotational speed of the rotor or the generator rotor from a reference rotational speed.

Abstract: Provided is a rotor blade of a wind turbine, wherein the rotor blade includes a trailing edge section with a trailing edge and a leading-edge section with a leading-edge, a root section with a root and a tip section with a tip, a shell which defines the outer shape of the rotor blade and a cavity which is confined by the shell, and a lightning protection system with an internal down conductor extending from the root section of the rotor blade to the tip section of the rotor blade, wherein the internal down conductor is connectable at the root section to a grounding system of the remainder of the wind turbine and at the tip section to at least one tip lightning receptor which is positioned at the surface of the rotor blade. In addition, the rotor blade comprises an electrically insulating tip part.

Abstract: High temperature thermal energy exchange system with horizontal heat exchange chamber and method for exchanging thermal energy by using the high temperature thermal energy exchange system A high temperature thermal energy exchange (heat) exchange system is provided.