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BIDIRECTIONALLY ROTATING INTEGRATED WIND TURBINE BLADE DEVICE WITH EFFICIENT WIND ENERGY CAPTURE

Resumen de: WO2026223366A1

A bidirectionally rotating integrated wind turbine blade device for efficient wind energy capture. A front-view structure is a triangular integrated blade, and an air guide duct having an air guide function is formed on a side-view structure. The device comprises a forward rotating mechanism and a reverse rotating mechanism, wherein the forward rotating mechanism rotates forward when being directly blown by natural wind; under the action of a whirlwind, the air guide duct of the side-view structure converges the vortex generated by an included angle between blades to drive the internal reverse rotating mechanism to operate cyclically, thereby achieving efficient bidirectional conversion of wind energy; and support assemblies such as a cable (111), an arch frame (112) and a ring frame (113) are used for the blades, the structure is simple and easy to install, and the wind resistance and operation stability of the blades are improved.

INTEGRATED PLAN-CONTROL METHOD FOR DYNAMIC STABILITY OF FLOATING WIND TURBINES

Resumen de: US20260338157A1

Provided is an integrated plan-control method for dynamic stability of floating wind turbines. An integrated planner is externally connected to a controller to coordinately and dynamically tune core control parameters of a blade pitch sub-control system, a generator torque sub-control system, and a nacelle yaw sub-control system. A planner based on a nonlinear dynamic mathematical model can be employed to dynamically tune the controller parameter, thereby achieving comprehensive optimization of the dynamic stability objective. Without altering the existing industry-standard controller architecture of the floating wind turbines, the method comprehensively improves the dynamic stability of the floating wind turbines by dynamically tuning a series of core control parameters of the industry-standard controller. The method suppresses the motion of a floating platform-support structure, mitigates the fluctuation of a rotor speed/active power, and enhances the operational stability and energy efficiency of the floating wind turbines, exhibiting significant engineering application value.

BLADE STATE MONITORING METHOD

Resumen de: WO2026222906A1

Provided in the present invention is a blade state monitoring method. The method comprises: when a blade is not damaged, collecting reference vibration data of the blade at a plurality of cross sections in a direction from a blade root to a blade tip on the same blade and collecting reference operation monitoring data, so as to obtain a reference frequency-domain covariance; on the basis of the reference operation monitoring data, constructing a memory matrix, and then calculating a reference similarity threshold value between any two cross sections; under actual operating conditions of the blade, performing collection to obtain an actual frequency-domain covariance between two cross sections of the same blade and collecting actual operation monitoring data, acquiring the memory matrix and calculating an actual similarity value between any two cross sections; and comparing the actual similarity value between the two cross sections with the reference similarity threshold value, so as to determine a damage condition of the blade. The present invention can greatly reduce the number of used sensors, and can monitor a damage position of a blade in real time on the basis of a constructed similarity damage model.

METHOD FOR CONSTRUCTING SPAR-TYPE OFFSHORE WIND POWER GENERATION FACILITY

Resumen de: AU2025288901A1

Problem To provide a method for constructing a spar-type offshore wind power generation facility while simply compensating shortage of crane lift height of a SEP barge equipped with a crane. Solution This method comprises: a first step for assembling an upper structure body 12 on a semi-submersible spud barge 46 by using a SEP barge 14 equipped with a crane, while using the semi-submersible spud barge 46 as an assembling frame 13 in a sea area of relatively calm waves, with the semi-submersible spud barge 46 being submerged or set on the seabed; a second step for lifting the assembled upper structure body 12 all at once by a large crane ship 2 and carrying the assembled upper structure body 12 to a construction place of an offshore wind power generation facility 1, after floating the assembling frame 13; a third step for holding a floating body 4 on the ocean in a standing state; and a fourth step for completing the offshore wind power generation facility 1 by connecting the upper structure body 12 to an upper part of the floating body 4 while the upper structure body 12 is lifted by the large crane ship 2.

SYSTEM FOR ASSISTING IN TOWING OPERATIONS OF A FLOATING WIND TURBINE

Resumen de: US20260336771A1

It is disclosed a system and a method for assisting in towing operations of a floating wind turbine (FWT) An FWT is provided with a wireless communication system and at least one position sensor for measuring a position of the FWT in at least three degrees of freedom. A master tow vessel is connected to the floating wind turbine by a towline. The master tow vessel comprising a winch, a DP system, a two-way wireless communication system. A tow assist system/module/controller may be integrated with the DP system. An assisting tow vessel(s) is connected to the floating wind turbine by a towline. The assisting tow vessel(s) is provided with a two-way wireless communication system. The tow assist system/module/controller calculates set points (force and direction) for all the towing vessels based on input parameter(s) from the floating wind turbine, and input parameter(s) from each assisting towing vessel and input parameter(s) from the master tow vessel.

FLUX-MODULATED ELECTROMAGNETIC APPARATUS

Resumen de: AU2024441848A1

A flux-modulated electromagnetic apparatus includes an induction machine including a rotor and a stator surrounding the rotor. The rotor includes a core and a rotor winding including a plurality of metal bars in contact with an outer surface of the rotor or an outer surface of the core. The stator includes slots, a power winding, a first control winding and a second control winding. The flux-modulated electromagnetic apparatus includes a first voltage source converter electrically coupled to the stator having a first AC terminal and a first DC terminal and a second voltage source converter electrically coupled to the stator having a second AC terminal and a second DC terminal. The first DC terminal is electrically coupled to the second DC terminal via a capacitor. The first AC terminal is electrically coupled to the first control winding. The second AC terminal is electrically coupled to the second control winding.

FLOATING OFFSHORE PLATFORM COMPRISING A BEAM WITH AN INTEGRATED TANK DELIMITED IN TWO TUBES OF THE BEAM

Resumen de: US20260336770A1

The floating offshore platform including a support structure having a beam configured for extending between first and second structural elements, the beam being formed of several tubes connected together and comprising a tank delimited within at least two tubes connected such that the individual internal volumes of said at least two tubes are in fluid communication, and at least three connections each configured for mechanically connecting an end of one tube of the beam to one of the first and second structural elements. Each connection with the first structural element is a bolted flange connection and/or each connection with the second structural element is a bolted flange connection.

METHODS FOR INSTALLING A CABLE-SUPPORTED ROTOR WIND TURBINE

Resumen de: US20260338165A1

A method of installing a cable system (30) including a cable assembly (32a-c) on a wind turbine (10) having a tower (12), a rotor (22), and a central hub (24). A plurality of blades (26a-c) is coupled to the hub (24). The cable assembly (32a-c) includes multiple cables (40a-c, 42a-c, 44a-c). A crane (102) has a hoist line (104, 106) and is attached to one of the cables (44a-c). The crane (102) lifts the cable assembly (32a-c) to the hub (24). The cable (44a-c) is then coupled to the hub (24). The hoist line (104, 106) is attached to another of the cables (40a-c, 42a-c), is moved to one of the blades (26a-c), and the cable (40a-c, 42a-c) is coupled to the one of the plurality of blades (26a-52c). Moving the cable (40a-c, 42a-c) may include pulling an end of the second cable (40a-c, 42a-c) to the one of the plurality of blades (26a-c). Pulling the end of the second cable (40a-c, 42a-c) may include moving the first crane (102) toward the one of the plurality of blades (26a-c).

Getriebe, Verfahren, Triebstrang und Windkraftanlage

Resumen de: DE102025116144A1

Die Erfindung betrifft ein Getriebe (20) für eine Windkraftanlage (1). Das Getriebe weist eine Antriebswelle (30) zum Aufnehmen mechanischer Leistung von einem Rotor (4) der Windkraftanlage (1) auf. Das Getriebe weist zudem eine achsparallel zu der Antriebswelle (30) beabstandete Abtriebswelle (40) auf. Die Abtriebswelle (40) ist zur Aufnahme mechanischer Leistung von der Antriebswelle (30) eingerichtet und zum Übertragen mechanischer Leistung drehfest mit einer Generatoreinheit (50) koppelbar. Das Getriebe weist zudem ein Gehäuse (22, 24), in welchem die Abtriebswelle (40) untergebracht ist, auf. Das Getriebe (20) ist derart ausgebildet, dass die Abtriebswelle (40) zur Wartung in einer axialen Richtung (90) aus dem Gehäuse (22, 24) entnehmbar ist. Die Erfindung betrifft zudem ein Verfahren zur Demontage des Getriebes, einen Triebstrang (10) und eine Windkraftanlage (1).

METHODS AND SYSTEMS FOR MITIGATION OF WIND TURBINE BLADE VIBRATIONS

Resumen de: EP4831478A1

The present disclosure relates to methods (100, 200, 500) for mitigating an edgewise vibration in a blade (22) of a rotor (18) of a wind turbine (10) during a vibration event. The wind turbine (10) is not generating electrical power. The method (100. 200, 500) comprises acquiring a signal with a sensor (121) arranged at the blade (22), and determining a magnitude indicative of a vibration of the blade (22) in an edgewise direction based on the acquired signal. The method (100, 200, 500) also comprises detecting the vibration event based on the determined magnitude, and assigning a risk category to the detected vibration event based on the determined magnitude. Moreover, the method (100, 200, 500) comprises executing a vibration mitigation action in the wind turbine (10) based on the assigned risk category. The present disclosure relates also to a wind turbine (10) comprising a control unit configured for implementing such methods (100).

ENERGY HARVESTING DEVICE

Resumen de: WO2025010027A1

In general terms the present invention proposes a device (100) for harvesting renewable energy. The device (100) comprises a wind turbine (140), a channel (160) for directing wind (198) to the wind turbine (140), and a solar receiver (155) positioned in the channel (160) for receiving sunlight (194) entering the channel (160).

AEROSTATIC WIND GENERATOR

Resumen de: EP4831479A1

0001 An aerostatic wind generator (100) comprises: an aerostatic balloon (1) comprising an enclosure (1a) filled with a gas lighter than air; a plurality of wind turbines (5) with horizontal axis arranged side by side on the aerostatic balloon (1); anchoring means (2) for anchoring the aerostatic ballon (1) to the ground; an adjustment system (4) connected to the aerostatic ballon (1), for adjusting the position of the aerostatic ballon based on wind speed and direction; a connection system (3) connecting the anchoring means (2) to the adjustment system (4); power transmission means (7) for transmitting the electrical energy produced by the wind turbines of the aerostatic generator to a power grid.

MONITORING SYSTEM, WIND TURBINE, METHOD AND USE

Resumen de: EP4831481A1

Die Erfindung betrifft ein Überwachungssystem (17) und ein Verfahren zur Überwachung eines Zustands eines Rotorblattlagers (14) und/oder Azimutlagers bei einer Windkraftanlage sowie eine Verwendung eines Überwachungssystems, umfassend zumindest einen Sensor (KSM1), welcher an einem ersten Ringelement (15) des Lagers, welches bezüglich eines zweiten Ringelements (16) des Lagers drehbar ist, anordbar ist, wobei mittels des Sensors während einer Drehung des ersten Ringelements bezüglich des zweiten Ringelements Schwingungen in dem Lager erfassbar sind, wobei anhand einer Analyse der erfassten Schwingungen der Zustand des Lagers ermittelbar ist.

風力発電装置

Resumen de: JP2026173290A

【課題】風速が安定しない自然風に対し高効率な発電を行うことができる風力発電装置を提供する。【解決手段】本発明の風力発電装置は、回転軸１２の回転時に、第１のステータ４４に対して第１のロータ４２を相対回転させるとともに、第２のステータ５４に対して第２のロータ５２を相対回転させないことによって第１の発電部４０のみでの発電を可能にし、回転軸１２の非回転時に、第１のステータ４４に対して第１のロータ４２を相対回転させることなく、第２のステータ５４に対して第２のロータ５２を相対回転させることによって第２の発電部５０のみでの発電を可能にする。【選択図】図１

METHOD FOR CONTROLLING A WIND POWER PLANT, COMPUTER PROGRAM PRODUCT AND WIND POWER PLANT

Resumen de: EP4607737A1

A method for controlling a wind power plant (1), the wind power plant (1) comprising one or more generator devices (14) and a grid-forming component (5) electrically connected to an output terminal (17) of the one or more generator devices (14), the wind power plant (1) including an electrical grid and/or being electrically connected to an electrical grid (4), and the method comprising:a) determining (S4) a frequency deviation (ΔF) of a current frequency (F_C) of the respective electrical grid (4) from a nominal frequency (F_N),c) controlling (S7) the power flow in the wind power plant (1) and grid-forming component (5) based on the determined frequency deviation (ΔF) and a droop characteristic (27, 28) of the grid-forming component (5) relating on a current power output (PG_C) of the one or more generator devices (14).Thus, frequency regulation of the grid can be improved.

SYSTEMS AND METHODS FOR REDUCING LOADS INDUCED IN A FLOATING OFFSHORE STRUCTURE

Resumen de: WO2025136363A1

A floating offshore wind turbine includes a buoyant tension leg platform with radially extending braces. A tensioned mooring line and tensioning device is connected to each brace. A control system in communication with the tensioning devices determines determine a wind condition of wind acting on the wind turbine and, based on the wind condition, determines a set length of the mooring lines to induce a pitch offset in the tension leg platform and a lean angle of the tower into the wind The lean angle is computed to generate a gravity moment in the wind turbine that offsets a bending moment induced in the tower from the wind.

SUPPORT STRUCTURES FOR OFFSHORE WIND TURBINES

Resumen de: GB2636813A

The bottom-fixed offshore wind turbine installation includes a support column 10 landed on the seabed 40 in an upright orientation, resting on or slightly self-embedded into the seabed (e.g. a gravity based or suction caisson based monopile like structure, installed without hammering or deep embedding). The column has buoyancy above its centre of gravity (36) and ballast below its centre of buoyancy (38). Inclined tensioned tethers 42 extend upwardly from the seabed at anchors 44 (e.g. piles) to the column. A wind turbine is supported atop the tethered column. A method and installed system is claimed. The column is towed horizontally, uprighted and held buoyantly above the seabed before being ballasted, landed, optionally further ballasted and then tethered before assembling the turbine on top. Buoyancy and/or ballasting of the column and tensioning of the tethers can be adjusted to control interaction with the seabed soil e.g. by using water ballast 30 and/or solid ballast 30A in a single or multiple ballast tanks 34 within the column. Buoyancy and ballasting cooperate similarly to a spar buoy to prevent the installation capsizing in the event of mooring failure.

METHODS FOR OPERATING WIND TURBINES AND WIND TURBINES

Resumen de: WO2025131277A1

The present disclosure relates to wind turbines (10) and methods (100) for operating wind turbines (10). A method (100) for operating a wind turbine (10) comprises determining (140) a voltage below a predetermined level between the power converter (104) and the main transformer (105); and in response to determining (140) the voltage below the predetermined level, an auxiliary energy source (84) may supply power to one or more of the auxiliary components (108, 109). The auxiliary transformer (106) may be de-energized (160) and the auxiliary transformer (107) may be changed (170) to a different transformer ratio and then power may be delivered (180) to the auxiliary components (108, 109) using the auxiliary transformer (107) with the changed transformer ratio. Suitable control systems (36) and wind turbines (10) are disclosed as well.

CONTROLLING A WIND TURBINE WITH MODIFIED CONTROL PARAMETER IN RELATION TO A SPECIAL GRID OPERATION

Resumen de: WO2025131198A1

The present invention relates to a control of a wind turbine during special grid operation. The wind turbine comprises a damping system that can reduce vibrational movement of a component of the wind turbine. The damping system is dependent on at least one preset damping control parameter. Upon obtaining a requirement for special grid operation the preset damping control parameter is modified and vibrational movement of the component is monitored. Upon determining a requirement to damp the vibrational movement of the component, the damping system is actuated using the modified control parameter.

A WIND TURBINE BLADE SPAR CAP

Resumen de: WO2025131207A1

In a first aspect of the present invention there is provided a wind turbine blade spar cap. The spar cap has an upper spar cap surface, a lower spar cap surface, and a spar cap thickness defined between the upper and lower spar cap surfaces. The spar cap has a middle portion throughout which the spar cap thickness is substantially constant, and a tapered end portion in which the spar cap thickness decreases towards an end of the spar cap. The spar cap comprises a plurality of pultrusion layers arranged in a stack. Each pultrusion layer has an upper pultrusion layer surface, a lower pultrusion layer surface, and a layer thickness defined between the respective upper and lower pultrusion layer surfaces. The stack comprises a first substack comprising a plurality of pultrusion layers and a second substack comprising a plurality of pultrusion layers. The stack further comprises an intermediate pultrusion layer comprising a tapered end section in which the layer thickness of the intermediate pultrusion layer decreases towards the end of the spar cap. The tapered end section is located in the tapered end portion of the spar cap. The intermediate pultrusion layer is sandwiched between the first and second substacks such that, in the tapered end portion of the spar cap, the tapered end section of the intermediate pultrusion layer is sandwiched between a plurality of pultrusion layers of the first substack and a plurality of pultrusion layers of the second substack.

A WIND TURBINE BLADE SPAR CAP

Resumen de: WO2025131206A1

In a first aspect of the present invention there is provided a wind turbine blade spar cap. The spar cap has an upper spar cap surface, a lower spar cap surface, and a spar cap thickness defined between the upper and lower spar cap surfaces. The spar cap also has a middle portion throughout which the spar cap thickness is substantially constant, and a tapered end portion in which the spar cap thickness decreases towards an end of the spar cap. The spar cap comprises a plurality of pultrusion layers arranged in a stack, each pultrusion layer having an upper pultrusion layer surface, a lower pultrusion layer surface, and a layer thickness defined between the respective upper and lower pultrusion layer surfaces. The layer thickness of each pultrusion layer in the stack is substantially the same throughout the middle portion of the spar cap. The stack comprises an upper pultrusion layer defining at least part of the upper spar cap surface, a lower pultrusion layer defining at least part of the lower spar cap surface, and an intermediate pultrusion layer arranged between the upper and lower pultrusion layers. The intermediate pultrusion layer comprises a tapered end section in which the layer thickness of the intermediate pultrusion layer decreases towards the end of the spar cap. The tapered end section is located in the tapered end portion of the spar cap. The tapered end section comprises a non-uniform rate of taper, and the tapered end section is sandwiched between at least tw

METHOD FOR ASSEMBLING AND AUTOMATICALLY LIFTING A WIND TURBINE TOWER

Resumen de: EP4831480A1

0001 The invention relates to a method for assembling and automatically lifting a wind turbine tower, characterised in that different ferrules (3) composed of wedges (4) are formed in situ using robotised elements (10) that travel along circular guides (9). Welding, inspection and painting elements are simultaneously applied to the inside and outside of the ferrule (3), and work is done at two heights by replicating the circular guides (9) and raising same by means of vertical columns (16). As the ferrules (3) are formed, they arc raised by a triangle (6) that travels between columns (5) of the automatic lifting system. Subsequently, by horizontally welding ferrules (3) together, a tower section (2) is formed. The method is applied to tubular towers and frustoconical towers that are 6-8 m in diameter and at least 200 m high.

DETERMINING ROTOR AZIMUTH ANGLE OF A WIND TURBINE

Resumen de: WO2025131201A1

The invention relates to determining rotor azimuth angle of a wind turbine. A rotor speed of the wind turbine is obtained, a gain is applied thereto to obtain a gain-adjusted rotor speed signal, and a rotor speed integrator is applied to the gain-adjusted rotor speed signal to determine rotor azimuth angle. The invention involves receiving an acceleration sensor signal, from an acceleration sensor located in a rotor hub of the wind turbine, indicative of gravitational acceleration of the rotor hub relative to a rotation axis of the rotor hub, and determining a reference rotor azimuth angle based on the received acceleration sensor signal. The invention involves determining an azimuth angle error between the reference rotor azimuth angle and the rotor azimuth angle determined by the rotor speed integrator, and determining the gain to be applied to the obtained rotor speed signal based on the determined azimuth angle error.

A WIND TURBINE BLADE

Resumen de: WO2025131215A1

A first aspect of the invention provides a wind turbine blade comprising an inboard wind turbine blade portion and an outboard wind turbine blade portion for joining together by a joint, each of the inboard and outboard wind turbine blade portions having an end with an aerofoil profile, the end of each of the respective wind turbine blade portions having a plurality of inserts embedded therein, each insert comprising an end portion having a connection for coupling the insert to another of the inserts across the joint and an extension portion which extends away from the end portion to an insert tip, each connection having a connection centre, wherein the plurality of inserts are sandwiched between fibre reinforced composite layers forming a shell of the wind turbine blade, the shell having a shell thickness between inner and outer surfaces of the shell, wherein a shell half thickness value is defined as half of the shell thickness just beyond a respective insert tip in a direction away from the joint, wherein at least one of the inserts has its connection centre located a first distance from a neutral axis of the blade, and the shell half thickness is located a second distance from the neutral axis, where the first distance is at least the second distance.

LIGHTNING PROTECTION SYSTEM

Nº publicación: EP4829260A1 28/10/2026

Solicitante:

VESTAS WIND SYS AS [DK]
VESTAS WIND SYSTEMS A/S

Resumen de: WO2025131208A1

A wind turbine blade comprising: a first blade portion having a shell that defines a suction side, a pressure side, a leading edge, a trailing edge, and a first spar cap portion, the first blade portion further including a first blade portion end surface at one end of the first blade portion; a second blade portion having a shell that defines a suction side, a pressure side, a leading edge, a trailing edge, and a second spar cap portion, the second blade portion further including a second blade portion end surface at one end of the second blade portion, wherein the first blade portion and the second blade portion are configured to be coupled together at the first and second blade portion end surfaces; a connection joint for coupling the first and second blade portions together, wherein the connection joint includes a connector for connecting to the first blade portion end surface and to the second blade portion end surface, the connector including electrically conductive material; and a lightning protection system including a down conductor portion in each of the first and second blade portions, wherein there is a gap between the connector and at least one of the down conductor portions, the lightning protection system further comprising an electrical cable electrically bonding the connector to the at least one down conductor portion across the gap.