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458
results.
Updated on
02/12/2025 [07:03:00]
Results 300 to 325 of 458
Absstract of: US2025354538A1
The present invention relates to a rotor blade (1) for a wind turbine (2), the rotor blade (1) comprising a first down conductor (6), extending from a tip section (3) to a root section (4), wherein the first down conductor (6) is electrically coupled with a root block (7) of the root section (4), wherein the root block (7) is electrically coupled with a second down conductor (8). The second down connector (8) is electrically coupled with a current distribution plate (9), wherein the current distribution plate (9) is attached to a fixation device (10) for fixing the rotor blade (1) to a first bearing ring (11a) of a bearing (11) of a hub (12). The invention also relates to a wind turbine (2) and to a method for assembling a rotor blade (1) to a hub (12) of a wind turbine (2) and establishing a conductive path between a first down connector (6) of the rotor blade (1) and the hub (12).
Absstract of: US2025354539A1
A wind turbine includes a rotor blade, an electrical system embedded in the rotor blade and at least one switchable connection between the electrical system and ground. The at least one switchable connection is controllably switchable between an open state and a closed state so that, when the at least one switchable connection is in the closed state, the electrical system is grounded, and, when the at least one switchable connection is in the open state, the electrical system is not grounded.
Absstract of: US2025356320A1
A detection unit acquires detection data of a wind turbine generator. A controller generates abnormality information indicating an abnormality or an abnormality sign in the wind turbine generator based on the detection data. The controller transmits the abnormality information to a user terminal.
Absstract of: US2025355931A1
Provided herein are detection systems and related methods for detecting moving objects in an airspace surrounding the detection system. In an aspect, the moving object is a flying animal and the detection system comprises a first imager and a second imager that determines position of the moving object and for moving objects within a user selected distance from the system the system determines whether the moving object is a flying animal, such as a bird or bat. The systems and methods are compatible with wind turbines to identify avian(s) of interest in airspace around wind turbines and, if necessary, take action to minimize avian strike by a wind turbine blade.
Absstract of: US2025358923A1
A lightning protection device for electronic equipment on a tower comprises a lightning charge insulating block mounted at the top of a power; a ground insulation lightning arrester which is a metal conductor, arranged at the top of the lightning charge insulating block, and insulated from a tower body; a lightning pulse energy consumption and absorption device comprising capacitive electrode plates, a polar dielectric and an insulating tank container, the capacitive electrode plates being symmetrically mounted on two sides of the interior of the insulating tank container, the insulating tank container being filled with the polar dielectric; and a double-conductor coaxial cable connected to the ground insulation lightning arrester and one end of the lightning pulse energy consumption and absorption device, the other end of the lightning pulse energy consumption and absorption device being connected to a grounding terminal.
Absstract of: US2025354535A1
A first aspect of the invention provides a pitch controlled wind turbine comprising a tower, a nacelle mounted on the tower, a hub mounted rotatably on the nacelle, and at least three wind turbine blades, wherein each wind turbine blade extends between a root end connected to the hub via a pitch mechanism, and a tip end, the wind turbine further comprising at least three blade connecting members, each blade comprising a first connection point and a second connection point, wherein each blade connecting member extends from a first connection point on one wind turbine blade towards a second connection point on a neighbouring wind turbine blade, where each connection point on a given wind turbine blade is arranged at a distance from the root end and at a distance from the tip end of the wind turbine blade and adjacent a leading edge of the wind turbine blade, and wherein each connecting member is independently moveable in two orthogonal directions at the respective first and second connection points to which it attaches.
Absstract of: WO2025238053A1
A method of installing or removing wind turbine blades onto or from a three bladed wind turbine with a horizontal axis rotor, said method comprising the steps of: a) attaching a blade yoke to a blade, b) attaching or detaching the blade to or from the hub, and c) lifting or lowering the blade. The method further comprises the following steps in any sequence with the above three steps: d) rotating the blade 90 degrees or more about a horizontal axis which is perpendicular to the longitudinal axis of the blade, and e) rotating the hub with the blade attached to the hub and the blade yoke attached to the blade so that the hub rotates between 30 and 120 degrees. In this way, a flexible method of mounting turbine blades is provided which is faster and more efficient than prior art methods. The current specification also discloses a second invention related to a blade yoke.
Absstract of: WO2025237485A1
The present invention relates control of a wind turbine to reduce rotor speed when a rotor blade is experiencing restrained movement, such as when a rotor blade is stuck. The invention comprises upon detecting that a rotor blade is experiencing restrained movement, set a power limit of a controller of the wind turbine above a power rating of a current operational point, maintain the pitch setting of the rotor blades and gradually decrease the rotor speed reference. Upon detecting that a speed of the rotor has reduced below a threshold, changing a pitch of the rotor blades to further slow the rotor.
Absstract of: WO2025237879A1
Wind turbine downtime prediction based on operational data A computer-implemented method of generating a model for predicting a downtime event of a wind turbine from operational data of the wind turbine is provided. A base model (70) is trained with first data sets of selected plural first wind turbines (101) using machine learning. Operational data of the respective data set serves as an input to the base model and a downtime event associated with the data set serves as a label for the training. Plural second wind turbines (102) are selected according to a predefined selection criterion that defines a minimum degree of similarity between the selected plural second wind turbines (102). Transfer learning (90) is applied to the base model (70) using second data sets of the selected second wind turbines (102) to obtain a sub-model for the selected second wind turbines (102).
Absstract of: WO2025237724A1
A method for operating a wind turbine (100) having a rotor (10) with at least one rotor blade (1, 2, 3) and a wind turbine (100) are disclosed. The method comprising: - determining a tilting value representative for a tilt bending moment acting on the rotor (10), - providing a function (150) with the tilt bending moment as functional argument, - determining a thrust limit value for the rotor (10) for the determined tilting value based on the function (150), wherein the thrust limit value is representative for a maximum allowable thrust force acting on the rotor (10), - operating the wind turbine (100) dependent on the determined thrust limit value.
Absstract of: WO2025237692A1
Method of performing drivetrain oscillation monitoring The invention describes a method of performing oscillation monitoring in a drivetrain (10), which method comprises the steps of obtaining sensor outputs (D) from a plurality of 5 sensors (S) arranged to measure the rotational speed of each of a number of drivetrain components (11, 12, 13, 14); screening the sensor outputs (D) to detect an erroneous sensor output (D); and, under exclusion of any erroneous sensor outputs (D), processing one or more of the remaining 10 sensor outputs (D) to identify oscillation in a drivetrain component (11, 12, 13, 14). The invention further describes a... drivetrain oscillation monitor (2) comprising a screening stage (20, 21) adapted to detect and exclude erroneous sensor output (D); and a wind turbine (1) comprising a 15 plurality of sensors (S) arranged to measure the rotational speed of a drivetrain component (11, 12, 13, 14) and an instance of such a drivetrain oscillation monitor (2).
Absstract of: WO2025237618A1
A method of controlling a power generation system (60) of a wind turbine (1) is provided. The power generation system (60) may be electrically coupled to a power grid (20) and may comprise a generator (10) generating electrical power and a power converter system (30) coupled to the generator (10) and the power grid (20). The method may comprise operating, by a control system, the power generation system (60) in a grid forming operation mode in which the power converter system (30) controls the exchange of electrical power with the power grid (20) to support a grid voltage and/or a grid frequency. The method further comprises limiting a variation of a torque of the generator (10) caused by a variation in electrical output power provided by the power generation system (60) to the power grid (20) by limiting variations of a stabilizing component of the output power and/or limiting variations in a disturbance power required to be supplied by the power generation system (60) to the power grid (20).
Absstract of: WO2025237608A1
Lower and upper tower section for a tower of a wind turbine, tower, wind turbine and method for manufacturing a tower of a wind turbine A lower tower section (8) for a tower (7) of a wind turbine (1), comprising: connection means (18) at an upper end (18a) thereof for mechanical connection with an upper tower section (9), at least one high-voltage cable (14) extending between a lower and an upper portion (20, 21) of the lower tower section (8) with respect to a vertical direction (V) in the erected state of the tower (7), a platform (16) in the upper portion (21), and a junction box (22) arranged on the platform (16), having at least one output terminal (23) electrically connected with an upper cable end (26) of the at least one high-voltage cable (14) and at least one input terminal (24) configured for electrical connection with at least one high-voltage cable (15) of the upper tower section (9). Thus, the manufacture and transportation of large wind turbine towers is improved.
Absstract of: JP2025171364A
【課題】止水性および耐久性を高めるとともに、鋼板の板厚を薄くできる塔状構造物を提供することを目的とする。【解決手段】一実施形態に係る塔状構造物は、水中Ｗに設けられるとともに水面Ｓから上方に突出するコラム３である。コラム３は、水面Ｓから上方に突出する外側鋼管５と、平面視における外側鋼管５の内側に設けられており、水面Ｓから上方に突出する内側鋼管６と、外側鋼管５と内側鋼管６との間に形成された空間Ｋに充填されるセメント系材料Ｃと、を備える。【選択図】図３
Absstract of: EP4650597A2
A subsea foundation comprises a caisson that is at least predominantly of steel and is preferably made mainly of flat steel plates, using conventional shipyard fabrication techniques. The caisson is lightweight, hence being transportable aboard an installation vessel rather than requiring towing, and can be lifted onto and off the vessel by a marine crane.The caisson has a base and a peripheral wall upstanding from the base to define at least one open-topped compartment in which ballast can be deposited onto the base after the caisson is lowered to the seabed.A column like a monopile for a wind turbine is co-operable with or fixed to the caisson. The column may be lowered with the caisson or lowered after the caisson and united with the caisson on the seabed. For the latter purpose, the caisson may comprise a tubular socket that receives the column telescopically.
Absstract of: EP4651326A2
Disclosed is a guiding device for guiding an elongated element such as a cable or a pipe from the exterior into a hollow interior of a support element, the support element being a support element for supporting an offshore structure and being at least partly submerged in water, wherein the guiding device comprises; a tube having a first opening at a first end for facing the exterior and a second opening at a second end opposite to the first end for facing the hollow interior of the support element. The guiding device is configured to allow water to flow into the first opening and out of the second opening of the tube, and substantially prevent water from flowing into the second opening and out of the first opening whereby the guiding device allows water to enter the hollow interior of the support element but not exit the hollow interior.
Absstract of: GB2641108A
A magnetic rotating mechanism comprising layers, each layer having: one or more rotating arm magnet segments 4 secured to a rotating axle 2 by a connection board 1; a top board (17, Fig. 1) above and a bottom board 15 below the arm; and one or more stationary magnet securing bases 14 mounted on the bottom board. The permanent magnet poles 6, 7 on the rotating arm are aligned radially, while the magnets 10 on the bases are axial. The arm segments and/or securing bases may be arcuate and may carry multiple magnets. The rotating magnets may be axially misaligned (Fig. 1) and radially spaced apart from the stationary magnets. The securing bases may cover less than 180° and be spaced apart from one another. The magnets on an arm segment may cover a larger angle than the gap between magnets on adjacent securing bases. Where one layer has multiple arm segments, the segments may be spaced apart from one another and have opposing magnetic poles. Across multiple layers (Fig. 1) the rotating arms may be aligned, while the bases may not overlap between layers (c.f. Figs. 4 and 6).
Absstract of: EP4650594A1
Provided are a variable-pitch control method and device for a wind turbine generator set. The variable-pitch control method comprises: identifying a current wind condition on the basis of operation data and wind parameters of a wind turbine generator set; in response to the current wind condition being a preset wind condition, acquiring an actual pitch angle and a target minimum pitch angle of the wind turbine generator set; setting a minimum pitch angle of the wind turbine generator set on the basis of the actual pitch angle and the target minimum pitch angle; and controlling the operation of the wind turbine generator set on the basis of the minimum pitch angle.
Absstract of: AU2024204232A1
A vehicle including a vehicle body having a front portion defining a first forward projection area, and a wind turbine system. The wind turbine system includes an airflow capture inlet, a flow consolidating conduit, an air driven rotor assembly, and an electric generator. 5 The airflow capture inlet has an inlet upstream end, an inlet downstream end, an air entry window, and a flow directing floor. The air entry window and the flow directing floor each extends from the inlet upstream end to the inlet downstream end. The air entry window defines a second forward projection area that is at least 10% of the first forward projection area. The flow directing floor is sloped upwardly. The flow consolidating conduit is close 10 sided. The air driven rotor assembly is downstream of a consolidating conduit downstream end. The air driven rotor assembly includes an air driven rotor connected to the electric generator. A vehicle including a vehicle body having a front portion defining a first forward projection area, and a wind turbine system. The wind turbine system includes an airflow capture inlet, a flow consolidating conduit, an air driven rotor assembly, and an electric generator. The airflow capture inlet has an inlet upstream end, an inlet downstream end, an air entry window, and a flow directing floor. The air entry window and the flow directing floor each extends from the inlet upstream end to the inlet downstream end. The air entry window defines a second forward projection ar
Absstract of: EP4651332A1
A method of controlling a power generation system (60) of a wind turbine (1) is provided. The power generation system (60) may be electrically coupled to a power grid (20) and may comprise a generator (10) generating electrical power and a power converter system (30) coupled to the generator (10) and the power grid (20). The method may comprise operating, by a control system, the power generation system (60) in a grid forming operation mode in which the power converter system (30) controls the exchange of electrical power with the power grid (20) to support a grid voltage and/or a grid frequency. The method further comprises limiting a variation of a torque of the generator (10) caused by a variation in electrical output power provided by the power generation system (60) to the power grid (20) by limiting variations of a stabilizing component of the output power and/or limiting variations in a disturbance power required to be supplied by the power generation system (60) to the power grid (20).
Absstract of: WO2024191286A1
A HAT wind turbine (111) for the production of electricity from wind, comprising a tower (5), a nacelle (6), a generator and a rotor (112), the rotor being rotatable about a rotor axis by the wind, the rotor having a rotor solidity SOLrotor of maximally 0.10, and the rotor having a radius R and a diameter D, wherein the rotor comprises a number of blades (113) N of at least 4, wherein the diameter D equals 100m or more, and wherein a maximum chord of a blade is less than one of: 12%R; 11%R; 10%R; 9%R; and 8%R.
Absstract of: EP4650897A1
A computer-implemented method of generating a model for predicting a downtime event of a wind turbine from operational data of the wind turbine is provided. A base model (70) is trained with first data sets of selected plural first wind turbines (101) using machine learning. Operational data of the respective data set serves as an input to the base model and a downtime event associated with the data set serves as a label for the training. Plural second wind turbines (102) are selected according to a predefined selection criterion that defines a minimum degree of similarity between the selected plural second wind turbines (102). Transfer learning (90) is applied to the base model (70) using second data sets of the selected second wind turbines (102) to obtain a sub-model for the selected second wind turbines (102).
Absstract of: EP4650598A1
The invention describes a method of performing oscillation monitoring in a drivetrain (10), which method comprises the steps of obtaining sensor outputs (D) from a plurality of sensors (S) arranged to measure the rotational speed of each of a number of drivetrain components (11, 12, 13, 14); screening the sensor outputs (D) to detect an erroneous sensor output (D); and, under exclusion of any erroneous sensor outputs (D), processing one or more of the remaining sensor outputs (D) to identify oscillation in a drivetrain component (11, 12, 13, 14). The invention further describes a ... drivetrain oscillation monitor (2) comprising a screening stage (20, 21) adapted to detect and exclude erroneous sensor output (D) ; and a wind turbine (1) comprising a plurality of sensors (S) arranged to measure the rotational speed of a drivetrain component (11, 12, 13, 14) and an instance of such a drivetrain oscillation monitor (2).
Absstract of: EP4650614A1
The invention relates to a main bearing unit (1) for a wind turbine drivetrain (2) comprising a housing (4), a low-speed shaft (3) and a first bearing (10) comprising an inner ring (11), an outer ring (12) and a plurality of rollers (17). The main bearing unit (1) further comprises a preload arrangement (30) for applying a preload to the first bearing (10) in the axial direction, wherein the preload arrangement (30) comprises a preload nut (31) and a retention ring (32) abutting against the preload nut (31) and configured to exert an axial force against the preload nut (31), wherein the preload nut (31) is arranged between the retention ring (32) and the inner ring (11) in an axial direction.
Nº publicación: EP4650596A1 19/11/2025
Applicant:
SIEMENS GAMESA RENEWABLE ENERGY AS [DK]
Siemens Gamesa Renewable Energy A/S
Absstract of: EP4650596A1
A lower tower section (8) for a tower (7) of a wind turbine (1), comprising:connection means (18) at an upper end (18a) thereof for mechanical connection with an upper tower section (9),at least one high-voltage cable (14) extending between a lower and an upper portion (20, 21) of the lower tower section (8) with respect to a vertical direction (V) in the erected state of the tower (7),a platform (16) in the upper portion (21), anda junction box (22) arranged on the platform (16), having at least one output terminal (23) electrically connected with an upper cable end (26) of the at least one high-voltage cable (14) and at least one input terminal (24) configured for electrical connection with at least one further high-voltage cable (15) of the upper tower section (9).Thus, the manufacture and transportation of large wind turbine towers is improved.
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