Nordex Energy Spain Patente

A method comprises:- attaching a first guide (351) to a bearing (200),- introducing a first end region (371) of a first tensioner (331) into the first guide (351),- wrapping the first tensioner (331) around the bearing (200),- introducing the first end region (371) into a first retaining device (341),- introducing a second end region (372) of the first tensioner (331) into the first retaining device (341),- tensioning the first tensioner (331) by pulling on the first end (361) and/or second end (362),- fixing each of the first end region (371) and the second end region (372) to the first retaining device (341) under tension. A guide, a tensioning system and a wind turbine are also disclosed

A method for mounting a tensioning system (320) to a bearing (200) for a wind turbine (100) is disclosed. The method comprises: - fixing a first end region (371) of a tensioner (331) in a retaining device (341), - fixing a second end region (372) in the retaining device (341), - filling a first cap (391) with an anti-corrosion agent (560), - filling a second cap (392) with an anti-corrosion agent (560), - attaching the first cap (391) to the retaining device (341) such that it covers the first end (361), - attaching the second cap (392) to the retaining device (341) such that it covers the second end (362). A wind turbine is also disclosed.

A method for disassembling a tensioning system (320) from a bearing (200) of a wind turbine (100) is disclosed. The tensioning system (320) comprises an elongated, flexible tensioner (331), the tensioner (331) being wrapped around the bearing (200) and fixed by a retaining device (341). The method comprises: - cutting the tensioner (331) in a cutting region (521) of the tensioner (331), and - removing the tensioner (331) from the bearing (200). A system for disassembling a tensioning system is also disclosed.

A method for reducing vibrations of a wind turbine. The wind turbine comprises a wind rotor with at least a first rotor blade and a second rotor blade. The method comprises adjusting a pitch angle of at least one rotor blade of the first and second rotor blades so that the pitch angle of the first rotor blade and the pitch angle of the second rotor blade differ by at least 30 degrees, the adjusting of the pitch angle occurring when the wind turbine is in a state where yawing of the wind rotor is possible. And the method comprises adjusting a yaw angle of the wind rotor to a preferred yaw position, the yaw angle being at least partially adjusted during or after the adjusting of the pitch angle. Also, a data processing device or system, a control system, a wind turbine, a wind farm and a computer program.

A method including yawing a nacelle yaw system of at least one wind turbine for orienting a nacelle of the at least one wind turbine according to a first yaw setpoint when the at least one wind turbine operates in a first operating mode, the first yaw setpoint being at least based on a wind direction at a location of the at least one wind turbine or a wind farm comprising the at least one wind turbine. The method also includes yawing the nacelle yaw system for orienting the nacelle according to a second yaw setpoint when the at least one wind turbine operates in a second operating mode that precedes a non-operational period comprising unavailability for performing a yaw maneuver. Also, a data processing device or system, a control system, a wind turbine, a wind farm and a computer program.

The object of the invention is an adapter of a tower of a wind turbine that can provide additional stiffness in those parts of the adapter where there is a stress concentration, and a wind turbine comprising a tower which in turn comprises the adapter, and a method of erecting the tower.

The object of the invention is an adapter of a tower of a wind turbine that does not need to have an area for allocating the anchor bolts for anchoring the concrete section to the adapter, and a wind turbine comprising a tower which in turn comprises the adapter.

Wind turbine assembly system and method configured to be used in handling of components during assembly, disassembly and/or servicing of wind turbines, the wind turbine comprising a tower (2). The assembly system comprising a lifting structure comprising: - a mast (1), and - a boom (4) configured to be joined to the mast (1). The assembly system being characterised in that it comprises a hoisting system comprising: o first guiding means (9.1) configured to be located in the mast (1) for hoisting of the mast (1), and o at least a hoisting cable (7) configured to be guided by the first guiding means (9.1) for hoisting the mast (1) from at least a horizontal position to a vertical position.

The invention concerns a wind turbine rotor blade (110) comprising a half shell (134) with a spar cap (138) and a first shear web (140), wherein- the first shear web (140) is connected to the spar cap (138), which extends in a spanwise direction (120) of the wind turbine rotor blade (110) and has a center line (121),- the first shear web (140) has a first portion (140a) starting in a rotor blade root portion (114), and a subsequent second portion (140b),- the first portion (140a) is orientated at an angle (α) to the center line (121) such that - starting from the rotor blade root end (126) - a distance (154) of the first shear web (140) to the center line (121) of the spar cap (138) decreases along the first portion (140a).

The present invention relates to a reinforcement system for a tower of a wind turbine that avoids the appearance or propagation of cracks or openings in the surface of a concrete element of the tower of the wind turbine once the tower is subjected to post-tensioning forces, exerting a radial compression force to the concrete element, wherein the invention also relates to a tower of a wind turbine comprising at least one reinforcement system and to a method of reinforcing a tower of a wind turbine.

The present disclosure concerns a hub (1) for a rotor of a wind turbine, comprising a hub body (2), comprising a first flange (3), and at least one second flange (5) configured for supporting a rotor blade, the at least one second flange defining a second flange area (6) of the hub body. The hub body further comprises a stiffening element (7) extending within at least a portion of the second flange area, wherein a cross section of the stiffening element comprises a center portion (lla) with a constant thickness along a width direction and at least one edge portion (llb) configured with a variable thickness along the width direction.

The present disclosure concerns a hub (1) for a rotor of a wind turbine, comprising a hub body (2), comprising a first flange (4), and at least one second flange (5) configured for supporting a rotor blade, the at least one second flange defining a second flange area (6) of the hub body. The hub further comprises a stiffening element (7) extending within at least a portion of the second flange area, wherein a thickness of the stiffening element in a direction perpendicular to the extension is constant at least over a defined extent.

A present disclosure refers to a hub (1) for a rotor (110) of a wind turbine (100), comprising a hub body (2) with a first flange (3) configured for attaching the hub body to a rotor shaft of the wind turbine and with at least one second flange (5) configured for supporting a rotor blade, the at least one second flange defining a second flange area (6) of the hub body, further comprising at least two stiffening elements (7) extending within at least a portion of the second flange area each stiffening element adjoining the hub body at at least two joints (8), wherein each stiffening element extends in a length direction with reference to an extension direction (S-S) of the rotor shaft.

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The present invention relates to a system for manufacturing an adaptable precast foundation structure for a wind turbine that is configured taking into account the wind turbine loads and soil conditions allowing that a large part of the foundation structure is homogenized, despite the fact that the transition structure being manufactured with the system is dependent of the type of soil and that the size of said transition structure varies depending on the soil, making it easily adaptable to the geotechnical conditions of each wind turbine position of the windfarm which allows a significant reduction in time and cost. The invention also relates to a method for manufacturing an adaptable precast foundation structure for a wind turbine and to a wind turbine manufactured with said method. The invention also relates to a system for manufacturing a precast foundation structure for a wind turbine and related method and precast foundation structure.

A method for operating a wind turbine (1) for reducing a risk of wind turbine overloading in the presence of a wind gust event is provided, the method comprising the steps: - providing first information (II) which is representative of a rate of change of a first wind turbine parameter (P1) comprising at least one of a first wind turbine loading parameter and a first wind turbine operating parameter over time, wherein each of the first wind turbine loading parameter and the first wind turbine operating parameter depends on a wind speed at the location of the wind turbine (1), - determining an adjustable first threshold (T1) considering the first information (I1), - comparing, in a first comparison step, the first information (II) to the first threshold (T1) and generating a first trigger signal (TS1) in case the first information (II) exceeds the first threshold (T1), - generating a control action (CA) intended to reduce the risk of wind turbine overloading caused by the wind gust event in case an action trigger (AT) is generated, wherein the generation of the action trigger (AT) requires that at least the first trigger signal (TS1) is generated. Furthermore, a wind turbine (1) with a control system (10) is provided.

The present invention relates to a wind turbine rotor blade spacer, a transportation and storage system for wind turbine rotor blades and a related method that prevent the vertical flexion of each one of the blades assemblies, minimizing the stresses and avoiding the contact between vertically and/or horizontally adjacent blades, and in consequence, blade damage. Also, the overall occupied surface by the system once assembled is minimised.

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The present invention relates to a post- tensioning system for a tower of a wind turbine that manages the quasi-permanent loads on the tower to counter them, reducing their impact and making it possible to decrease the required amount of overall post-tension force in the tower of the wind turbine, also to a post-tensioned tower of a wind turbine comprising the post-tensioning system and to the method of post-tensioning a tower of a wind turbine.

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The object of the invention is a wind turbine tower which reinforces the upper part of the section of the tower of the wind turbine, wherein the tower comprises- at least one first tower section;- an adapter disposed between the at least one first tower section and at least one second tower section or a wind turbine component,wherein the at least one first tower section is a concrete tower section comprising an upper flange comprising an external diameter; andwherein the adapter comprises:- a lower flange configured to join the adapter to the at least one first tower section;wherein the lower flange of the adapter comprises an external diameter.

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The present invention can be included in the technical field of the wind turbine assembly systems, wherein the wind turbine assembly system of the present invention proposes an alternative to assembly systems using climbing cranes that install the tower sections sequentially as they climb on the previous section already in place, being an additional object of the invention an assembly method for a wind turbine.

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