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SYSTEM AND METHOD FOR CONTROLLING A WIND TURBINE DURING A COMMUNICATION LOSS

Resumen de: EP4814301A1

0001 A method for controlling a wind turbine having a plurality of rotor blades. The method includes receiving, via a control module arranged in a hub of the wind turbine and in communication with a pitch controller of the wind turbine, first data associated with operation of the wind turbine. The first data is collected via a plurality of sensors arranged in the hub and in communication with the control module. The method also includes determining, via the control module, a first reference signal based, at least in part, on the first data received from the plurality of sensors arranged in the hub. Further, the method includes detecting, via the control module, a communication loss between the control module and a turbine controller arranged external to the hub. In addition, the method includes, in response to the communication loss, controlling, via the control module, a plurality of pitch adjustment mechanisms of the plurality of rotor blades independently for a ride-through time based on the first reference signal.

PERFORMING DEFORMATION ANALYSIS OF A WIND TURBINE BLADE

Resumen de: WO2025149359A1

Performing deformation analysis of a wind turbine blade It is described a method of performing deformation and/or orientation analysis of a wind turbine rotor blade, the method comprising: acquiring first position data (104) of a first navigation system probe (105, 262a) mounted at the blade to provide position at a first location (263a); acquiring second position data (106) of a second navigation system probe (107, 262b) mounted at the blade to provide position at a second location (263b); deriving first direction information (264) at least regarding a relative direction of the first location (263a) and the second location (263b) based on the first position data and the second position data.

CONTROLLING WIND TURBINES IN CASE OF A UTILITY GRID EVENT

Resumen de: EP4585801A1

It is described a method of controlling plural wind turbines (2a,2b) being connected to a utility grid (3), comprising respective wind turbine controllers (5a,5b) and being communicatively connected with a plant controller (4), the method comprising for at least one wind turbine: determining, by the plant controller (4), in response to a utility grid event, a reference (6a, 6b) of an operation parameter (P, Q); communicating, from the plant controller (4) to the wind turbine controller (5a, 5b), the plant controller determined reference (6a,6b) of the operation parameter; communicating, from the plant controller (4) to the wind turbine controller (5a,5b), an annotation information (7a,7b) indicating that the reference of the operation parameter has been determined based on the grid event; then controlling, by the wind turbine controller (5a,5b), the wind turbine (2a,2b) based on the plant controller determined reference (6a,6b) of the operation parameter.

WIND TURBINE YAW CONTROL

Resumen de: EP4814299A1

0001 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.

DETERMINING A DESIGN LOAD FOR DESIGNING A WIND TURBINE COMPONENT

Resumen de: EP4814776A1

The invention relates to designing a wind turbine component. For a given defined load case, the invention involves, for each of a plurality of defined operational parameter values, simulating wind turbine operation at the respective operational parameter value, and determining, based on simulation output, a characteristic extreme load at the respective operational parameter value. At the defined design load, the invention involves obtaining a combined characteristic extreme load for the respective defined load case using a combining function that depends on the determined characteristic extreme load, and a defined probability of wind turbine operation, at each respective operational parameter value. This is repeated for different design loads, and the invention involves determining a design load for extreme loading based on the combined characteristic extreme loads for the respective load cases. The wind turbine component is designed in accordance with the determined design load.

A METHOD AND SYSTEM FOR CONTROLLING YAWING OPERATION OF A WIND TURBINE GENERATOR (WTG) IN A WIND FARM

Resumen de: EP4814297A1

The present invention provides a system and method for controlling yawing operation of a wind turbine generator (WTG) in a wind farm. In the present invention a controller (205) within the WTG, receives wind direction values from a first sensor (110) in the wind turbine generator. Thereafter, the controller (205) determines a first mean wind direction, over a predetermined time, of the wind direction values received from the first sensor (110). Also, the controller (205) receives wind direction values from a second sensor (301) mounted away from the wind turbine generator and determines a second mean wind direction value, over a predetermined time period, of the wind direction values received from the second sensor (301). Further, the controller (205) determines a first standard deviation, over a predetermined time, of the wind direction values received from the first sensor (110), and it also determines a second standard deviation, over a predetermined time period, of the wind direction values received from the second sensor (301). Thereafter, it determines a difference between the first and second mean wind directions and compares the determined difference with a predetermined threshold value, wherein if the determined difference is greater than the predetermined threshold value, it compares the first and second standard deviations and selects a source of wind direction that has a lower standard deviation amongst the first and second standard deviations for subsequent yawin

METHOD FOR MOUNTING A TENSIONING SYSTEM, GUIDE, TENSIONING SYSTEM AND WIND TURBINE

Resumen de: EP4814295A1

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

WIND TURBINE ROTOR BLADE AND METHOD FOR MANUFACTURING A WIND TURBINE ROTOR BLADE

Resumen de: EP4814290A1

0001 A wind turbine rotor blade (110) comprises a spar cap (200) having a first-type stack (202) of prefabricated pultruded planks (210). The first-type stack has a length (L1) measured in a first direction (D1), a width (W1) defined as the distance between two opposite lateral sides (204) of the first-type stack and a height (H1) measured in a stacking direction of the pultruded planks. A further prefabricated pultruded plank is arranged transversely to the pultruded planks of the first-type stack on a lateral side of the first-type stack.

METHOD AND SYSTEM FOR DISASSEMBLING A TENSIONING SYSTEM

Resumen de: EP4814293A1

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.

METHOD FOR CONTROLLING A WIND TURBINE UNDER REVERSE ROTATION, AND ASSOCIATED CONTROL SYSTEM

Resumen de: EP4814296A1

A method of operating a wind turbine, the method comprising determining a rotational speed of a main rotor of the wind turbine, determining a rotational direction of the main rotor, identifying a reverse overspeed condition when the rotational speed of the wind turbine rotor exceeds a predefined rotational speed limit and the rotational direction is reverse, and in particular, upon determining that the reverse overspeed condition persists for at least a threshold duration, initiating a mitigation action to reduce or halt the reversed rotational speed.

METHOD FOR MOUNTING A TENSIONING SYSTEM AND WIND TURBINE

Resumen de: EP4814294A1

0001 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 ROTOR-LOCK SYSTEM AND METHOD FOR A WIND TURBINE GENERATOR

Resumen de: EP4814298A1

The present invention provides a rotor-lock system in a wind turbine generator. The system includes a rotor shaft flange (110) mounted to a hub (170) of the wind turbine generator through a plurality of mounting means (195). The exposed portion of the mounting means (195) is extending through the rotor shaft flange (110) towards a main bearing (140) of the wind turbine generator. The removable rotor-lock plate (180) is mounted onto the exposed portion of the mounting means through one or more mounting holes (181) on the rotor-lock plate (180) before a use of the rotor-lock plate and locked by inserting one or more locking pins (190) in the one or more locking holes (182). For unlocking, the locking pins (190) from the one or more locking holes are removed and the rotor-lock plate is unmounted from the exposed portion of the mounting means through one or more mounting holes on the rotor-lock plate (180) after the use of the rotor-lock plate (180).

WIND TURBINE PITCH AND YAW CONTROL

Resumen de: EP4814300A1

0001 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.

SPAR CAP ASSEMBLY FOR A ROTOR BLADE OF A WIND TURBINE

Resumen de: EP4814292A1

A spar cap assembly for a rotor blade of a wind turbine is provided. The spar cap assembly (100) comprises a stack (50) of layers (51, 52, ...) of carbon fiber composite material, wherein the layers are stacked in a thickness direction (111) and wherein the stack (50) extends in a longitudinal direction (110), and further comprises a lightning conductor (40) of a lightning protection system extending along the stack of layers. At least one potential equalization assembly (120) configured to electrically connect the stack (50) of layers of carbon fiber composite material to the lightning conductor (40) provides an equipotential bonding (121) at an equipotential bonding position (122) in the longitudinal direction. Two or more longitudinal contact ranges are arranged in longitudinal direction (110) next to each other, wherein each longitudinal contact range (10, 20, ...) comprises at least a first sheet (11, 21, ...) of conductive material that is arranged on and in direct electrical contact with a layer (51, 52, ... ) of the stack (50) and that rests against the lightning conductor (40).

METHOD FOR CONTROLLING A FARM OF WIND TURBINES

Resumen de: EP4814302A1

0001 Procédé de pilotage d'une ferme d'éoliennes, avec A) une phase d'initialisation de maximisation de l'énergie produite: A1) mise en œuvre d'un modèle initial MOD<0> de maximisation de l'énergie produite par la ferme d'éoliennes par simulation des sillages, selon des paramètres initiaux afin de déterminer un/des points de fonctionnement initiaux, A2) application de ces points de fonctionnement initiaux aux actionneurs des éoliennes, B) acquisition en temps réel de mesures de configuration de vent, C) estimation des paramètres du modèle initial MOD<0> de maximisation d'énergie par un estimateur ESTIM à partir des mesures de configuration de vent D) mise à jour du modèle initial MOD<0> avec l'estimation les phases B), C), et D) étant réitérées, avec l'obtention d'un modèle corrigé M E) correction de la maximisation de l'énergie produite comprenant E1) mise en œuvre du modèle corrigé MOD afin de déterminer des points de fonctionnement corrigés, E2) application du/de ces points de fonctionnement corrigés aux actionneurs des éoliennes, les étapes E1) et E2) étant réitérées.

FLOATING MARINE PLATFORM WITH FLANGE CONNECTIONS

Resumen de: EP4813824A1

0001 The invention relates to a floating marine platform comprising multiple columns that are interconnected with tubular members, wherein the floating marine platform comprises multiple flange connections in the tubular members, wherein at least one flange connection comprises a radial inwardly directed first mounting flange with a first annular engagement surface, a radial inwardly directed second mounting flange with a second annular engagement surface, and a seal ring that comprises a first annular seal surface that faces the first annular engagement surface, a second annular seal surface that faces the second annular engagement surface, wherein the seal ring tapers radially inwards along the first annular seal surface and the second seal surface, wherein mountings bias the first mounting flange and the second mounting flange against the seal ring.

CALIBRATING A WIND DIRECTION SENSOR OF A WIND TURBINE

Resumen de: WO2025108528A1

The invention relates to calibrating a wind direction sensor of a wind turbine. The invention involves retrieving a measured relative power output between a downwind wind turbine and the wind turbine, as a function of absolute wind direction at the wind turbine. The invention involves determining predicted relative power output as a function of absolute wind direction, wherein the predicted relative power output is a predicted power output of the further wind turbine relative to the predicted power output of the wind turbine, the further wind turbine power output being based on wake flow generated by the wind turbine. The invention involves comparing the measured relative power output against the predicted relative power output to determine an error in terms of absolute wind direction, and updating defined wind turbine yaw offset based on the determined error. The invention involves calibrating the wind direction sensor based on the determined error.

LEAK DETECTION IN WIND TURBINES

Resumen de: DK202370580A1

A wind turbine fluid system comprising a fluid tank having a fluid level sensor that provides a tank level signal indicative of the level of fluid in the fluid tank; and a plurality of fluid-using components fluidly coupled to the fluid tank. The fluid system further comprises a processor configured to: determining an actual fluid volume of the fluid tank based at least in part on the tank level signal; using one or more models to generate an estimated fluid volume of the fluid tank based on data relating to the plurality of fluid-using components; comparing the estimated fluid volume of the fluid tank with the determined actual fluid volume of the fluid tank; triggering an alert action in the event that the result of the comparison indicates that a leak is present in the fluid system. The invention also relates to a method of detecting leakage of fluid in a system, a wind turbine comprising such a fluid system, and a computer program product. A benefit of the invention is that it provides a more accurate determination of leakage behaviour in a fluid system by monitoring the difference between an estimated volume of the fluid, for example hydraulic fluid, in the fluid tank and a measured value of fluid volume in the tank.

VIBRATION DAMPER ASSEMBLY FOR REDUCING THE TRANSMISSION OF VIBRATIONS

Resumen de: CN121399367A

The invention relates to a method for operating an elongated first component (10; 30) for a vehicle body (10; 140), the first part (10; 30) is arranged in the longitudinal direction (LD) of the connection end (11; 31) for mechanical connection to the second component (20). The damper device (40; 140) comprises at least two damper groups (41a, 41b, 41c, 41d, 41e) which are arranged between the first part (10; 30) having the connection end (11; 31) and an end section (12; 32) and are spaced apart from one another in the longitudinal direction (LD), each of the damper groups (41a, 41b, 41c, 41d, 41e) comprising a plurality of individual dampers (42a, 42b, 42c, 42d, 42e) distributed in the circumferential direction (CD) in the first part (10; 30) on the peripheral wall (14). In order to reduce problems due to tones in the wind turbine (1) in a simple and cost-effective manner, the damper sets have natural frequencies that differ from one another. The invention also relates to a wind turbine (1).

WATER-AIR TURBINE

Resumen de: WO2025110886A1

The subject of the invention is a water-air turbine, which is characterised in that its frame supporting structure (1) consists of angle profiles (2) connected to rectangular frames (3, 7), which are detachably connected to a rotary assembly (11) equipped with two rotating shafts (10) mounted in holes (5, 5') of rectangular frames (3, 7), while two elliptical guides (9) are detachably connected to the angle profiles (2) of the frame supporting structure (1), under rolling rollers (57) of trolley assemblies (13, 13') inseparably connected with at least two blade assemblies (14) symmetrically arranged on the circumferences of elliptical guides (9), each of which consists of a lower frame supporting structure (19) equipped with a support plate (20) and an upper frame supporting structure (21) equipped with the support plate (22) connected to each other hingedly by means of a pin (23) and by means of upper rods (35) and lower rods (35') placed in profile connectors (34, 34') and hingedly connected to them, positioned parallel to each other, ended with ring elements (36, 36'), wherein the upper rods (35) pass through the ring elements (36') of the lower rods (35'), while the lower rods (35') pass through the ring elements (36) of the upper rods (35), and moreover, on the lower rods (35') between each lower connector (34') and the ring element (36) of the upper rod (35), an expansive cylindrical spring (37) is mounted, while the lower frame supporting structure (19) of the blade as

VERFAHREN ZUM EINSTELLEN VERSTELLBARER ROTORBLÄTTER EINER VERTIKALWINDKRAFTANLAGE

Resumen de: CH722641A1

Die vorliegende Erfindung betrifft eine Vertikalwindkraftanlage mit einem System zur optimierten Regelung verstellbaren Rotorblätter mittels eines Pitchwinkels (β). Das System umfasst eine Sensoreinheit, die Umgebungs- und Betriebsdaten wie Windgeschwindigkeit, Windrichtung und Temperatur erfasst. Diese Eingabedaten (20) werden einem maschinellen Lernmodell (4) zugeführt, das auf Grundlage dieser Daten einen Leistungsparameter (12) der Windkraftanlage vorhersagt. Ein Optimierungsalgorithmus (3) ermittelt und passt Werte eines dynamischen Pitchwinkels iterativ an, um den Leistungsparameter (12') zu maximieren. Die Rechnereinheit vergleicht den optimierten Leistungsparameter (12') mit dem aktuellen Wert und übermittelt den berechneten dynamischen Pitchwinkel an die Regelungseinheit, die diesen mittels eines Pitchantriebs in Echtzeit einstellt und nachregelt.

METHOD FOR COATING LARGE-AREA INDUSTRIAL AND BUILDING COMPONENTS AND AUTOMATIC PAINTING DEVICE

Resumen de: EP4813523A1

0001 Die Erfindung betrifft ein Verfahren zum Beschichten großflächiger Industrie- und Bauwerkskomponenten, insbesondere für den Außeneinsatz, vorzugsweise in korrosionsintensiven Umgebungen, besonders bevorzugt für den Offshore-Einsatz, wobei ein Bauteil (9) mit einer zusammenhängende Großfläche durch eine Beschichtungsdüse (110; 210) mit einem Beschichtungsmaterial besprüht wird. Das Verfahren setzt auf den Einsatz eines Lackierautomaten (100; 200). Die Erfindung betrifft auch den Lackierautomaten (100; 200) selbst, welcher eine Beschichtungsdüse (110; 210), einen Linearantrieb (111) und eine Führung (131; 231) aufweist, wobei der Linearantrieb (111) eingerichtet ist, die Beschichtungsdüse (110; 210) entlang der Führung (131; 231) des Lackierautomaten (100; 200) zu verfahren, sowie ferner einen Automatenantrieb (120; 220) zum Verfahren des Lackierautomaten (100; 200).

WIND TURBINE ROTOR POSITIONING

Resumen de: WO2025153401A1

Wind turbine rotor positioning A method of operating a wind turbine for positioning a wind turbine rotor of the wind turbine is provided. The wind turbine (100) comprises an electrical generator (10) mechanically coupled to the wind turbine rotor (101) and a power converter system (20), wherein the power converter system (20) comprises at least two parallel power converters (21, 22) providing two parallel paths for exchanging electrical power with the electrical generator (10). The method comprises controlling the power converter system (20) to supply electrical power to the electrical generator (10) to operate the electrical generator as a motor, and upon detecting a failure of a power converter (21) of the power converter system (20), controlling the power converter system (20) to maintain operation of at least one other power converter (22) of the power converter system (20) to continue supplying electrical power to the electrical generator (10) to continue generating torque that is applied to the wind turbine rotor (101).

基于级联非线性模型与残差学习的风力发电机控制方法

Resumen de: CN122834428A

一种基于级联非线性模型与残差学习的风力发电机控制方法，属于风力发电控制技术领域，首先建立风力发电机组全系统动力学模型，基于静态非线性‑动态线性级联结构进行系统辨识，构建兼具物理可解释性与非线性拟合能力的级联非线性预测模型；再通过高斯过程回归对模型残差进行在线学习与前馈补偿，提升模型精度与鲁棒性；最终基于补偿后的模型构建模型预测控制器，结合线性二次型调节器理论整定权重，滚动优化求解最优控制指令。本发明显著提升风机全工况功率跟踪精度，有效抑制机组疲劳载荷，在湍流风况下具备强鲁棒性，适用于大型风力发电机组的稳定运行控制。

基于叶根弯矩的风电机组风切变实时估计方法及装置

Nº publicación: CN122839144A 29/09/2026

Solicitante:

西安热工研究院有限公司深能南京能源控股有限公司

Resumen de: CN122839144A

本发明公开了一种基于叶根弯矩的风电机组风切变实时估计方法及装置，方法包括通过传感器同步采集三枚叶片的叶根挥舞弯矩、摆振弯矩、叶片方位角、桨距角及变桨速率；结合弯矩与桨距角计算风轮平面外叶根弯矩分量，并借助方位角完成Park坐标变换，得到固定轮毂坐标系下的叶根弯矩；对风轮多圈运行产生的弯矩零分量、俯仰分量取均值，进而计算无量纲剪切指标；结合机组运行状态、变桨速率阈值与弯矩阈值判定更新条件，利用指标阈值识别风切变状态。本方法复用机组现有数据，无需增设硬件，降低投入与运维成本，可实现秒级实时检测，快速应对突发负风切变，多重约束条件有效抵御工况干扰，判定结果稳定，适用于机组控制与安全防护场景。