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387
resultados
Última actualización
06/08/2025 [07:03:00]
Resultados 125 a 150 de 387
Resumen de: US2025243844A1
The invention provides a controller for a wind turbine having three rotor blades, the controller being for controlling activation of individual pitch control of the rotor blades. The controller is configured to receive a flap load signal, from a flap loading sensor of each of the three rotor blades, indicative of flap loading on each of the respective rotor blades. The controller is configured to determine, based on the received flap load signals, a statistical dispersion parameter of flap loading for each of the rotor blades, the statistical dispersion parameters being indicative of a wind event in a wind field in which the wind turbine operates. The controller is configured to control activation of individual pitch control based on the respective statistical dispersion parameters.
Resumen de: US2025243849A1
A wind turbine nacelle includes a rotor generator shaft, a rotor connected to the rotor generator shaft, an array of permanent magnets mounted on a circular outer surface of the rotor, a rotor hub directly connected to a forward end of the rotor generator shaft, a plurality of circumferentially spaced blades mounted on the rotor hub to face upwind, a stator ring surrounding the rotor, a plurality of encased coils mounted on an inner surface of the stator ring facing and radially spaced from the array of permanent magnets, a rear chassis attached to a rear surface of the stator ring and having a rear bearing housing, a rear bearing mounted in the rear bearing housing, a forward chassis attached to a front surface of the stator ring and having a front bearing housing, and a front bearing mounted in the front bearing housing.
Resumen de: US2025243846A1
This wind power generation device includes a plurality of rotary blades 15 around a rotation axis. Each rotary blade 15 includes a front blade surface 16 parallel to the rotation axis and curved so as to protrude frontward in a rotation direction, and a rear blade surface 17 located on the back side of the front blade surface 16, being parallel to the rotation axis, being curved so as to be concave frontward in the rotation direction, and having a smaller curve depth than the front blade surface 16. The front blade surface 16 includes a first curved surface 19 forming a part far from the rotation axis and formed frontward in the rotation direction from an outer end 21 of the rotary blade 15, and a second curved surface 20 forming a part close to the rotation axis Li and formed rearward in the rotation direction from a crest 18 of the front blade surface 16 so as to connect to an inner end 22, a surface length thereof in a plan view being smaller than that of the first curved surface 19. The first curved surface 19 has recesses 23 at positions closer to the outer end 21 than to the crest 18 of the front blade surface 16. Thus, a rotary blade that rotates by receiving a fluid and can improve rotation efficiency, is provided.
Resumen de: US2025243843A1
The present document relates to an airborne wind-driven energy-converting apparatus, as well as wind-driven energy systems including such an apparatus and methods of producing wind-driven energy.
Resumen de: US2025243842A1
A wind powered turbine is disclosed that comprises two concentric cylinders. The first cylinder is located within the perimeter of the second cylinder. Both the first cylinder and the second cylinder comprise a plurality of blades. The first cylinder and its blades move in response to wind activity. The second cylinder and its blades do not move when the first cylinder and its blades are moving. The curvature of the blades of the first cylinder and the curvature of the blades of the second cylinder are in different directions with respect to each other.
Resumen de: US2025243847A1
A tower assembly system can include a self-climbing platform that can carry a load to a determined height, which once attained, can place the load into position. A method for assembling a wind turbine can involve placing a first tower section in an upright position on a tower base and using an elevator assembly platform attached to the first tower section to elevate, position and connect subsequent tower sections until the subsequent tower sections are located directly above the first tower section in a vertical tower assembly. The elevator assembly platform can perform vertical displacement operations and lateral displacement operations with respect to one or more components of the wind turbine, such as, for example, the first and subsequent tower sections, nacelle, blades, etc.
Resumen de: US2025243845A1
A system for a wind turbine nacelle includes a rotor head, a plurality of blade holders connected to the rotor head, and a shaft having a first end that extends into the rotor head. Linear movement of the shaft causes movement of the plurality of blade holders. The system further includes an electromechanical pitch actuator connected to a second end of the shaft and configured to translate linearly to move the shaft linearly. The system further includes a linear drive system connected to the electromechanical pitch actuator. The system further includes a fail-safe system connected to the electromechanical pitch actuator via the linear drive system. The fail safe system actuates to force the electromechanical pitch actuator rearward to move the blades into a stall blade position.
Resumen de: US2025243850A1
An elevated or ground level vertical cylinder houses one or more propellers and/or turbines that are rotated by heated air convection within or around or above the cylinder. The rotating shafts of the propellers generate electricity in an area at the bottom of or below the cylinder. For added, improved air flow directions and volumes; and, for stabilization of the rotating shaft or shafts, a cone structure is disposed below the cylinder. Heat is directed to the cylinder by a plurality of sun tracking concave mirrors that are positioned in concentric circles at various heights. The cylinder may be composed of concrete, ceramics, metal compounds or other materials and operate with a surface temperature that may range from 70 to 1,300 degrees Fahrenheit. Disclosed embodiments include the use of heat sinks, internal blades disposed upon pyramid structures and flexible vanes and flaps,
Resumen de: EP4592519A1
The invention describes a shear web assembly (1) for a wind turbine rotor blade (4), comprising a composite shear web (10); at least one electrical cable section (12) bonded to the bag-side (10B) of the shear web (10), wherein the length (L<sub>12</sub>) of an electrical cable section (12) is at most 80% of the shear web length (L<sub>10</sub>); and a bonding layer (18) over each electrical cable section (12), wherein a bonding layer (18) comprises resin-infused reinforcing material and is formed concurrently with the composite shear web (10). The invention further describes a method of manufacturing such a shear web assembly (1), and a wind turbine rotor blade (4) comprising such a shear web assembly (1).
Resumen de: CN119546850A
The invention relates to a plain bearing (9) comprising: an inner ring element (13); an outer ring element (14); at least one sliding bearing element (15), which is arranged between the inner ring element (13) and the outer ring element (14), by means of which the outer ring element (14) and the inner ring element (13) are supported so as to be rotatable relative to one another about an axis of rotation (16), the sliding bearing element (15) comprising a plurality of sliding bearing pads (22), each individual sliding bearing pad (22) having a curved bearing surface (27). The curved bearing surface (27) has a first radius (34) in a longitudinal section along the axis of rotation (16) and a second radius (35) in a cross section orthogonal to the axis of rotation (16). In particular, the second radius (35) is larger than the first radius (34).
Resumen de: EP4592520A1
The present application relates to a forward swept fan blade, a design method and manufacturing method therefor and a wind turbine. The forward-swept fan blade comprises: a blade body, extending in the length spanwise direction between a root and a tip of the blade; and a pitch axis, extending and vertically penetrating through the center of a root circle. With respect to the pitch axis, on the downstream side of the middle of the blade in the length spanwise direction, the blade deviates in a direction from a trailing edge to a leading edge. Using the forward-swept fan blade in the embodiment of the present application can enable the blade to generate forward torsional deformation during operation, so as to counteract the trend of the blade deviating from the optimal lift-to-drag ratio, thus achieving the purpose of minimum loss of the optimal power coefficient at different rotating speeds, and increasing the overall power generating capacity of wind turbines.
Resumen de: CN119923521A
The invention relates to a drive train (14) for a wind turbine (10), having a transmission (18) for transmitting and converting a torque originating from a rotor shaft (16) of a rotor (12), the transmission (18) having an input transmission element, in particular a planet carrier (32), which is not supported at least on the rotor side and serves to introduce the torque into the transmission (18), and having a coupling unit (46) for coupling the input transmission element to the planet carrier (32). The coupling unit (46) is designed to be separated from the rotor shaft (16) and from the transmission (18) and is used for coupling the rotor shaft (16) to the input transmission component in a torque-transmitting manner, and the coupling unit (46) is provided with a bearing (48) which is used for supporting the unsupported input transmission component in the coupling unit (46). By adapting the bearings of the input transmission components in individually designed coupling units (46) to different demand profiles, alteration of the structure of the transmission (18) can be avoided, thereby enabling a cost-effective driveline (14) for different wind turbines.
Resumen de: WO2024061588A1
The method is for operating a wind turbine (100) having a rotor (10) with at least one rotor blade (1, 2, 3), a tower (20) and a pitch setting system (13). The method comprises a step of providing first information which is representative for the tilt bending moment acting on the rotor. In another step, second information is provided which is representative for the thrust force acting on the rotor. In yet another step, third information is provided which is representative for a critical area of thrust forces and tilt bending moments. In another step, fourth information is determined depending on the first, the second and the third information. The fourth information is representative for whether the tilt bending moment and the thrust force lie within the critical area. I f this is the case, an output signal is generated which is configured to cause the pitch setting system to change the pitch angle of the at least one rotor blade in order to leave the critical area.
Resumen de: CN119907983A
The invention relates to a method for constructing a wind farm in a predetermined space, in which at least the following consecutive steps are carried out: a) forming (GR) individual grids in the predetermined space, b) determining, for each grid, the average annual energy production (AEP-mf) of a small wind farm consisting of wind turbines at the intersections of the cells, c) selecting (Ch) a number of grids capable of maximizing the energy production, and d) selecting (Ch) a number of grids capable of maximizing the energy production. D) for each grid c in step c), determining a first layout (Alg1) of a predefined number of wind turbines on the grid, e) modifying the positions (Alg2) of the wind turbines on the grid, f) determining a deterministic layout (DispF) of the wind turbines within a predetermined space, and constructing (Const) the wind farm.
Resumen de: EP4592521A1
This application relates to the technical field of wind turbines, and provides a wind turbine flutter suppression method and device, a control system and a wind turbine. The method includes: determining a nacelle-wind direction angle between a wind direction and a nacelle direction; and determining a pitching method for changing pitch angles according to the nacelle-wind direction angle. The pitching method includes a speed-controlled pitching scheme and a pitch-angle-sequence-controlled pitching scheme. The speed-controlled pitching scheme includes: regulating pitch angles of blades of the wind turbine according to a rotor speed of the wind turbine to keep the rotor speed within a preset speed range until flutter of the wind turbine is suppressed. The pitch-angle-sequence-controlled pitching scheme includes: performing a pitching operation on the pitch angles of the blades of the wind turbine according to preset pitching rules until the flutter of the wind turbine is suppressed. According to this application, with this method, the flutter suppression of the wind turbine can be realized without yawing by using a low-power standby power supply when the wind turbine is powered down.
Resumen de: EP4592523A1
This application relates to the technical field of wind turbines, and in particular to a standby power supply control device, a system, a wind turbine generator system and a method. The device includes: a nacelle vibration detection unit, configured to monitor vibrations of a nacelle of a wind turbine and send a first vibration signal obtained by monitoring to a standby power supply start/shutdown control unit; and the standby power supply start/shutdown control unit, configured to acquire the first vibration signal, determine a vibration state of blades on the wind turbine according to the first vibration signal and send a start command to a standby power supply when the vibration state is abnormal vibrations. The standby power supply start/shutdown control unit is further configured to acquire comprehensive vibration information, determine a vibration suppression result of the wind turbine according to the comprehensive vibration information and send a shutdown command to the standby power supply when the vibration suppression result is vibration suppression completed so as to drive the standby power supply to shut down. Thereby, this application solves the problems of short continuous high power supply to the wind turbine when facing the risk of blade flutter between hoisting and grid connection, and poor economic efficiency in the prior art.
Resumen de: WO2024061641A1
The method is for operating a wind turbine (100) having a rotor (10) with at least two rotor blades (1, 2, 3), a tower (20) and a pitch setting system (13). The method comprises a step, in which first information is provided which is representative for bending moments of the at least two rotor blades and the assigned positions of the rotor blades. In another step, second information is provided which is representative for maximum allowed bending moments of rotor blades when they are in a critical sector close to the tower. In yet another step, third information is determined depending on the first and the second information which is representative for whether the bending moment of at least one rotor blade exceeds the respective maximum allowed bending moment when said rotor blade is in the critical sector. If this is the case, an output signal is generated which is configured to cause the pitch setting system to individually change the pitch angles of the rotor blades in order to reduce a deflection of the rotor blades towards the tower when they pass the tower.
Resumen de: EP4592522A1
Load carrying assembly (10), comprising a plurality of length sections of used wind mill blades (11) arranged in a preferably symmetrical structural pattern around a common longitudinal axis. The wind mill blade sections are attached to one another by a plurality of spaced apart connection elements (12, 13, 14). The structural pattern is typically symmetrical around a central axis.
Resumen de: WO2024061667A1
The method is for operating a wind turbine (100) having a rotor (10) with at least one rotor blade (1, 2, 3), a tower (20) and a pitch setting system (13). The method comprises a step in which first information is provided which is representative for a bending moment of the at least one rotor blade. In another step, second information is provided which is representative for the wind turbulence intensity at the rotor. In another step, third information is provided which is representative for a predetermined maximum allowed bending moment of the at least one rotor blade. The maximum allowed bending moment is dependent on the wind turbulence intensity at the rotor. In another step, fourth information is determined depending on the first, the second and the third information and is representative for whether the bending moment exceeds the maximum allowed bending moment at the wind turbulence intensity. If this is the case, an output signal is generated which is configured to cause the pitch setting system to change the pitch angle of the at least one rotor blade in order to reduce a deflection of the at least one rotor blade towards the tower when passing the tower.
Resumen de: AU2023346225A1
Shaftless vertical-axis wind turbine, comprising a hub (3) and a plurality of C-shaped blades (20), wherein each blade (20) comprises: a lower radial airfoil (221) arranged on the inner frame (120) at a lower radial portion (21) of the blade, a vertical airfoil (223) arranged on the inner frame (120) at a vertical portion (23) of the blade, and an upper radial airfoil (222) arranged on the inner frame (120) at an upper radial portion (22) of the blade, wherein at least one portion of the vertical airfoil (223) of each blade (20) is rotatable about a relevant axis of rotation, in a manner that is independent from the homologous portions of the vertical airfoil (223) of the other blades (20), to adjust the angle of attack or the curvature of the relevant vertical airfoil (223).
Resumen de: CN119895142A
A support structure for a wind turbine (100), the support structure comprising:-a rotor bearing housing (201), where the rotor bearing housing (201) is configured to accommodate a rotor bearing (250) for rotatably supporting a rotor shaft (114); -a base (202) wherein the base (202) is configured to be rotatably mounted on a top (103) of a tower (102) of the wind turbine (100) at a first end (203) of the base (202) wherein the base (202) is configured to be mounted with the rotor bearing housing (201) on a second end (204) of the base (202) wherein the base (202) comprises a side wall (205) extending between the first end (203) and the second end (204), and the side wall (205) comprises a passage opening (206) for people to pass through.
Resumen de: CN119895179A
The invention relates to an industrial gear unit (100) having at least one shaft (101) and at least one shaft receptacle (103) for mounting the shaft in an axially fixed manner, the shaft being mounted in the shaft receptacle in an axially fixed manner in at least one axial portion (X1, X2) of the shaft, according to the invention, an intermediate element assembly (10) is arranged between the shaft receptacle (103) and the shaft (101) in such a way as to act in the axial section, said intermediate element assembly being mounted between the shaft and the shaft receptacle in an axially fixed and axially force-transmitting manner, the intermediate element assembly has a laser structured surface (10.1) in at least one surface portion (10.1 a, 10.1 b) on the shaft and/or on the shaft receptacle and is thus intended for at least substantially force-fitting and optionally also form-fitting support with respect to an axial displacement, wherein a conical pressure fit or similar connection which produces a form fit at a macro level can be additionally provided. The invention also relates to a corresponding intermediate element having a laser-structured surface for such an intermediate element assembly, to a method for the production thereof, and to the use thereof in planetary gear systems, in particular for wind turbines.
Resumen de: WO2024062257A1
A floating structure (1) having three buoyant bodies (3,5,7) for supporting a horizontal axis wind turbine (6) and wind turbine tower (27). The floating structure (1) is provided with a geostationary mooring system that permits it to weathervane in order to head the wind turbine (6) into the wind, and has a wind turbine tower mount (29) for supporting the wind turbine tower (27). A central buoyant body (3) is located partially above water during assembly and tow out from port and is ballasted so that it is underwater when moored offshore, such that the floating structure (1) becomes a semi¬ submersible. The three buoyant bodies (3,5,7) are ship-shaped in form which reduces loads in the mooring system, and are made from stiffened flat plates, which are easier for many yards and fabrication shops to make, compared to cylindrical hulls.
Resumen de: AU2023345000A1
The invention relates to an arrangement for use in any of installing or replacing a part, maintaining, and constructing a wind turbine, the arrangement comprising a longitudinal structure at least partially supported on a wind turbine tower, a guide track connected to the longitudinal structure and a dolly arranged to follow the guide track along the longitudinal structure.
Nº publicación: EP4590959A1 30/07/2025
Solicitante:
SJK ENERGY SOLUTIONS LLC [US]
SJK Energy Solutions, LLC
Resumen de: MX2025003430A
A fluid flow turbine blade assembly for a turbine rotor includes a blade and a deflector extending spanwise along at least a portion of the blade. At least a portion of an upstream surface of the deflector, along at least a portion of a span of the deflector, has a concave shape in a chordwise direction such that at least a portion of a chord line between leading and trailing edges of the deflector is disposed outside a profile defined between the upstream surface and a downstream surface of the deflector. The deflector has a substantially uniform thickness or a chord-wise varying thickness between the upstream surface and the downstream surface. The deflector alters fluid flow over the blade so as to increase the blade's contribution to global torque generated by the assembly so that, with the deflector's torque contribution, the global torque of the assembly is greater than the global torque that would be generated by the blade alone without the benefit of the deflector.
BOPI
Sede Electrónica
