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SELF-CLEANING PHOTOVOLTAIC APPARATUS

Resumen de: WO2025229694A1

The present invention discloses a state of conical photovoltaic system with solar panel mount on a conical base whose height is modular in nature and can be increased or decreased to manipulate the power output. The structural design allows increased solar irradiance, hence increased power output per area on the ground vis-à-vis a conventional flat-bed solar panel. The present invention allows facilitate a self-cleaning assembly with a motion controlled by the motion of a vertical axis wind turbine and hence an efficient maintenance of the solar panel is done without additional costs and any external power consumption.

WINDMOTOR

Resumen de: WO2025229391A1

The invention relates to wind energy devices for converting kinetic energy of air into usable energy. A windmotor comprises a nacelle (1) rotatable about a vertical axis, at least one propeller-type rotor (3) with a shaft (4) and at least one curved aerodynamic blade (5) mounted for rotation about a horizontal axis. The curved aerodynamic blade (5) is shaped to generate lift in the direction of rotation. The windmotor also contains at least one device (8) for spraying working fluid that is provided in at least one curved propeller blade (5) and/or mounted behind the rotor (3) in the airflow direction. At least one device (8) for spraying working fluid creates a dome-shaped fairing from sprayed fluid and air downstream of the rotor (3). The windmotor as a system also includes at least one source of working fluid (6) and at least one device for supplying working fluid (7). The design improves operation under low wind conditions.

SAILBOAT WITH A GENERATOR IN THE MAST

Resumen de: WO2025229244A1

The present invention relates to a sailboat with a generator in the mast, comprising a hull (1) and at least one mast (2) supported by shrouds (3), wherein the mast (2) consists of an internal fixed structure (21) and an outer casing that vibrates with respect to the fixed structure (21), a magnet (23) being arranged in one of the elements of the mast (2) and a spool (24) aligned with the magnet (23) in the other element. The shrouds (3) are attached to the hull (1) by means of fastenings (4) comprising a spring and/or a damper, for example, a capstan (43) having variable tension.

WIND POWER GENERATION APPARATUS AND ENERGY STORAGE SYSTEM

Resumen de: WO2025228037A1

The present application relates to a wind power generation apparatus and an energy storage system. The wind power generation apparatus comprises: a first blade and a second blade; the first blade and the second blade being arranged at two ends of a first shaft, and the first blade and the second blade being capable of rotating about the first shaft; a second shaft, arranged perpendicular to the first shaft; an input end of a generator being connected to the second shaft; and a power transmission mechanism having one end connected to the first shaft, and the other end connected to the second shaft. In direction X of the first shaft, the width of the second blade is increased by Δk relative to the width of the first blade, or in direction Y of the second shaft, the length of the second blade is increased by Δh relative to the length of the first blade. By widening or lengthening one of the two blades, an asymmetric blade structure design is formed, and the inherent deflection torque of the first and second shafts during transmission can be effectively counteracted, ensuring stable operation of the wind power generation apparatus.

WAVE-ABSORBING CORE MATERIAL STRUCTURE OF WIND TURBINE BLADE AND WIND TURBINE BLADE

Resumen de: WO2025227618A1

A wave-absorbing core material structure of a wind turbine blade. The wave-absorbing core material structure comprises a core material substrate (1). Grooves are formed in the core material substrate. The depth of each groove is less than the thickness of a core material. A reinforcing fiber woven fabric (6) or a wave-absorbing structure is arranged in the grooves. The reinforcing fiber woven fabric is further combined with a wave-absorbing agent. The wave-absorbing structure comprises two layers of glass fiber woven fabrics and a wave-absorbing material (8) sandwiched between the two layers of glass fiber woven fabrics. According to the device, on the basis of existing grooves in the core material, the reinforcing fiber woven fabric combined with the wave absorbing agent, or the wave-absorbing structure is placed in the grooves of the core material, the reinforcing fiber woven fabric extends to the surface of the core material, and then the core material, an upper skin, a lower skin, and other auxiliary materials are laid on a blade mold and then subjected to integrated pouring forming. The present invention improves the wave absorption and mechanical properties of a sandwich structure of a wind turbine blade and also mitigates the problem of blade failure caused by the separation of the core material from the upper and lower skins during long-time operation of the wind turbine blade. Also disclosed is a wind turbine blade.

MODULAR CONSTRUCTION AND FOUNDATION SYSTEM WITH STACKABLE STRUCTURAL SEGMENTS FOR SCALABLE TRANSPORT AND ON-SITE ASSEMBLY

Resumen de: WO2025229635A1

Methods and systems for constructing residential, commercial, industrial, and infrastructural buildings, as well as towers for wind energy generation, using prefabricated structural modules. The modules are designed for stacking both vertically and laterally, allowing the formation of tall tower structures while remaining within standard transportation limits. The system addresses logistical and assembly challenges by enabling highway-compliant transport, modular on-site erection, and integration of connection features for mechanical fastening and post-tensioning.

PITCH ANGLE CONTROL METHOD AND APPARATUS FOR FLOATING WIND TURBINE, AND DEVICE

Resumen de: WO2025227441A1

A pitch angle control method for a floating wind turbine. The method comprises: on the basis of an inflow wind speed of a target wind turbine, a pitch angular velocity of the target wind turbine and a tower height of the target wind turbine, separately determining a rotation speed error correction ratio and a rotation speed error integral correction ratio of the target wind turbine; on the basis of the rotation speed error correction ratio, a rated rotation speed of a wind rotor in the target wind turbine and a first rotation speed of the wind rotor, determining a rotor rotation speed error of the target wind turbine, and on the basis of the rotation speed error integral correction ratio, the rated rotation speed and the first rotation speed, determining a rotor rotation speed integral error of the target wind turbine; on the basis of the first rotation speed, a current first pitch angle of the target wind turbine, the rotor rotation speed error and the rotor rotation speed integral error, determining a target pitch angle of the target wind turbine; and controlling the pitch angle of the target wind turbine to change to the target pitch angle, so that the stability of the target wind turbine can be improved to a certain extent. Further disclosed are a pitch angle control apparatus for a floating wind turbine, and a device.

Antriebssystem für eine Windturbine, Verfahren zum Betreiben eines Antriebssystems für eine Windturbine und Windturbine

Resumen de: DE102024112468A1

Die vorliegende Offenbarung stellt ein Antriebssystem (200) für eine Windturbine (100) bereit, das einen Elektromotor (50) mit einer Vielzahl von Wicklungen (5) umfasst. Der Elektromotor kann in mindestens zwei verschiedenen Betriebsmodi betrieben werden, wobei verschiedene Wicklungskonfigurationen (5a, 5b, 5c) in verschiedenen Betriebsmodi mit elektrischem Strom versorgt werden. Das Antriebssystem umfasst ferner einen Stromrichter (150), der elektrisch mit der Vielzahl von Wicklungen des Elektromotors verbunden werden kann. Der Stromrichter ist so konfiguriert, dass er den Elektromotor in mindestens einigen der verschiedenen Betriebsmodi betreibt. Das Umschalten zwischen mindestens einigen der verschiedenen Betriebsmodi wird durch den Stromrichter ermöglicht.

Gleitlageranordnung und Verfahren zur Montage von Segmenten eines Gleitlagers

Resumen de: DE102024112440A1

Eine segmentierte Gleitlageranordnung (1), insbesondere in einer Windkraftanlage (10), umfasst mindestens ein segmentiertes Gleitlager (2, 3), dessen Gleitlagersegmente (8, 9) an einem Lagergehäuse (4) gehalten sind, wobei durch das Lagergehäuse (4) voneinander abweichende Montageschemata (Ma, Mk, Mr), in welchen die einzelnen Gleitlagersegmente (8, 9) montierbar sind, vorgegeben sind.

Prüfvorrichtung zur mechanischen Prüfung eines balkenförmigen Prüflings

Resumen de: DE102024204159A1

Die Erfindung bezieht sich auf eine Prüfvorrichtung zur mechanischen Prüfung eines balkenförmigen Prüflings (1), insbesondere eines Rotorblatts, umfassend eine in einem Spannfeld (3) verankerte Einspannvorrichtung (2) zum Einspannen des balkenförmigen Prüflings an einer Einspannstelle (1') des balkenförmigen Prüflings, einen oder mehrere mit dem balkenförmigen Prüfling verbundene Ankoppelelemente (4A, 4F), insbesondere Lastrahmen, ein oder mehrere mit je einem Ankoppelelement verbundene aktive Lasteinleitungsmittel (5A, 5B), sowie ein oder mehrere mit je einem Ankoppelelement verbundene passive Lasteinleitungsmittel, von denen wenigstens eines eine mit dem Spannfeld verbundene Federeinrichtung aufweist, wobei die Federeinrichtung ein Federmodul (14) mit mehreren, insbesondere gleichartigen, mechanisch zueinander parallelgeschalteten Federelementen (14A, 14B, 14C, 14D, 14E, 14F, 14G, 14H, 14i, 14J) aufweist. Durch die Verwendung eines Federmoduls wird die Prüfvorrichtung flexibel an die individuelle Prüfsituation anpassbar.

Verfahren und Vorrichtung zur Erzeugung von Wärme

Resumen de: DE102025001479A1

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Erzeugung von Wärme, bei dem eine mechanische Bewegung aus Wind, Wellen oder Wasserströmung dazu verwendet wird, einen Kompressor zu betreiben und die Abwärme des Kompressors genutzt wird.

TOWER FOR A WIND TURBINE OR A TRANSMITTING AND RECEIVING SYSTEM FOR MOBILE COMMUNICATIONS

Resumen de: US2025341110A1

The invention relates to a tower for a wind turbine or a mobile radio transceiver system with at least one section with polygonally arranged walls, wherein the walls are formed from a wood-based material, wherein in each case two walls in a corner of the polygon are connected to one another in the form of a vertical joint with in each case one side face. It is advantageous that the side surface of a wall in the vertical joint has at least one connecting element, that the at least one connecting element is suitable for transmitting shear forces in the vertical joint, that the at least one connecting element has at least one projection (prong) and at least one recess (valley), that the at least one projection and the at least one recess are arranged in such a way that the at least one projection of one wall engages in the at least one recess of the other wall in the assembled state of the walls in the vertical joint, and that at least one step is provided between a projection and a recess, wherein the projections of two connecting means of two walls are arranged one above the other in the assembled state of the walls in the vertical joint.

Vibration Absorber Arrangement

Resumen de: US2025341091A1

A vibration absorber arrangement (1) is provided, in particular for tall slender structures, comprising a supporting structure (8), an absorber mass (2) which comprises a center of mass (3), and at least one wheel (4, 5) by means of which the absorber mass (2) is movable on a concavely curved rail arrangement (6), which is connected to the supporting structure (8), from a stable central position in two opposite directions, wherein a friction damper device (9) is provided. One wants to be able to adapt such a vibration absorber arrangement in a simple manner to different operating requirements. For this, it is provided that the friction damper device (9) is adjustable between a first state, in which it does not interact with the absorber mass (2) or only dampeningly, and a second state, in which it controlledly brings a movement of the absorber mass (2) to a standstill.

COOLING SYSTEM WITH THERMOELECTRIC DEVICE IN STATOR CHAMBER FOR VARIABLE TORQUE GENERATION ELECTRIC MACHINE

Resumen de: US2025343475A1

An electric machine having a housing with a stator chamber, an axle supported by at least one bearing assembly so that the axle may rotate with respect to the housing, a stator assembly with a stator core and a plurality of wire windings around the stator core, a rotor assembly with a magnet assembly for generating a magnetic field in the stator assembly wherein a coolant is circulated through the stator chamber over the stator core and plurality of wire windings to remove heat, and a plurality of thermoelectric devices. The thermoelectric devices are located around the inner circumference of the housing so that the coolant is circulated over the plurality of thermoelectric devices. The plurality of thermoelectric use the Peltier effect to cool the coolant flowing through the stator chamber or generate an electrical current that can be used by the electric machine.

GRID FORMING CONTROL

Resumen de: US2025343416A1

A method of controlling a power generation system is provided. The power generation system may be electrically coupled to a power grid and may include a power generation unit generating electrical power and a converter system coupled to the power grid. The converter system may convert at least electrical power that is exchanged between the power generation unit and the power grid. The method may include operating the converter system in a grid forming operation mode in which the converter system may control the exchange of electrical power with the power grid to support a grid voltage and/or a grid frequency. During a disturbance of the power grid, the exchanged electrical power may comprise a stabilizing component that may provide the support.

A PLATFORM IN A WIND TURBINE TOWER AND A CONNECTION ARRANGMEENT FOR THE PLATFORM

Resumen de: WO2025228497A1

A platform for an internal shaft of a wind turbine tower, the platform having at least one tower wall connector comprising a first member and a second member, wherein one of the first member and the second member is connected to the platform and wherein the other of the first member and the second member is adapted for connection to a wall of a wind turbine tower. The first member and the second member are oriented and arranged to able to slide with respect to one another, wherein the first member includes an opening, and wherein the second member includes a projection that extends through the opening. A benefit of the invention is that the configuration of the first and second members permits the platform to move slightly relative to the tower wall which means that the connector serves to accommodate dynamic deformation, or 'ovalisation' of the tower wall, in use.

APPLYING RESTRICTION TO ACTIVE POWER DELIVERY FROM GRID FORMING CONVERTER DUE TO TORQUE LIMITATION

Resumen de: WO2025228496A1

Disclosed is a method for providing grid-forming control of a wind turbine electrically coupled to a power grid. The method comprises a wind turbine controller, (WTC), defining a first upper limit indicating a maximum generator torque with which the wind turbine may continuously operate without risk of damaging the wind turbine, and a second upper limit being larger than the first upper limit and indicating a maximum generator torque with which the wind turbine may operate non-continuously without damaging the wind turbine. The method comprises the WTC, determining, in agreement with the second upper limit, a maximum power threshold for AC power injected into the power grid by the converter in case of a grid disturbance, and providing the maximum power threshold to a converter controller for controlling operation of the converter according to a grid forming converter, (GFC), control scheme. The method comprises the converter controller controlling the converter to inject AC power in accordance with the GFC control scheme while respecting the maximum power threshold on the injected AC power.

WIND TURBINE BLADE WITH HEATING ELEMENTS

Resumen de: WO2025228495A1

A method of heating a wind turbine blade with three or more heating elements, the method comprising: generating three or more alternating voltages, each alternating voltage having a different phase; and feeding the alternating voltages to the heating elements, thereby generating alternating currents in the heating elements which cause the heating elements to heat the wind turbine blade. The wind turbine blade comprises first and second electrodes, an alternating voltage with a first phase is fed to the first electrode, an alternating voltage with a second phase is fed to the second electrode, and an alternating current flows through one of the heating elements between the first and second electrodes, driven by an alternating voltage difference between the electrodes.

DRIVE TRAIN FOR A WIND TURBINE

Resumen de: WO2025228759A1

A drive train (14) for a wind turbine (10) is provided, comprising an output shaft (44) for transmitting a wind power-generated torque originating from a wind rotor (12), a rotor (46), a rotor support (52) protruding radially inwards from the rotor (46), and an intermediate shaft (50) connected to the rotor support (52) and to the output shaft (44) for conjoint rotation. The intermediate shaft (50) is pressed together with the output shaft (44) and/or the intermediate shaft (50) is secured to the output shaft (44) via a radially running pin connection (68), a pin (70) of the pin connection (68) being completely received in the intermediate shaft (50) and the output shaft (44) so as to be sunken in the radial direction. By pressing or pinning the intermediate shaft (50) to the output shaft (44), not only is the ease of assembly of the drive train (14) improved, but it is also possible to adapt the geometry of the intermediate shaft (50) in the radial direction over a larger region in order to greatly reduce vibrations which occur in the torque flow of the drive train (14).

FLOATING OFFSHORE STRUCTURE AND FLOATING OFFSHORE POWER GENERATION APPARATUS HAVING SAME

Resumen de: US2025341202A1

A floating offshore structure of the present disclosure includes: a plurality of columns; and a plurality of pontoons installed at lower ends of the columns, respectively, wherein a polygonal shape is formed by an imaginary line connecting the columns, the pontoons are installed inside the polygonal shape, a cross-sectional area in a direction parallel to sea level of the pontoons is greater than or equal to the cross-sectional area in the direction parallel to the sea level of the columns, and the pontoons may have a shape protruding outward at the lower ends of the columns.

FLOATING OFFSHORE STRUCTURE AND FLOATING OFFSHORE POWER GENERATION APPARATUS HAVING SAME

Resumen de: US2025341203A1

A floating offshore structure of the present disclosure includes: a plurality of columns; and a plurality of pontoons installed at lower ends of the columns, respectively, wherein a polygonal shape is formed by an imaginary line connecting the columns, the pontoons are installed inside the polygonal shape, a cross-sectional area in a direction parallel to sea level of the pontoons is greater than or equal to the cross-sectional area in the direction parallel to the sea level of the columns, and the pontoons may have a shape protruding outward at the lower ends of the columns.

HYBRID WIND AND SOLAR ENERGY GENERATING SYSTEM

Resumen de: AU2024259109A1

A hybrid wind and solar energy generating system includes one or more solar arrays of solar panels arranged at an angle relative to a horizontal plane of reference, defining leading and trailing boundaries on such panels. A wind turbine is mounted proximate to the trailing boundary on a horizontal axis with blades extending longitudinally and in operative proximity to the trailing boundaries. A source of wind is amplified passing over the windward side of the solar panels to form a resultant wind vector extending outwardly off the trailing boundary. The resultant wind vector acts on the blades of the turbine to increase revolutions per minute of such turbine and increase power or energy generated by the system of the panels, power from both wind and sun. The arrangement of the solar array and a wind turbine on a horizontal axis increases the efficiency of the system, especially in low wind conditions.

SYSTEMS AND METHODS FOR POWER GENERATION, TRANSMISSION, AMPLIFICATION AND/OR STORAGE

Resumen de: AU2025252649A1

MARKED UP COPY A machine (101) including a vertical rotatable shaft (4b) levitated by magnets (5) so as to minimize frictional losses. Magnets (5) are arranged on the machine body (7) and/or the shaft (4b) of the machine (101) to thereby exert a repelling force so that the rotating shaft (4b) is uplifted against gravitational forces. The machine (101) may additionally or alternatively incorporate a magnetic bearing (6), a variable inertia flywheel (24), a magnetic gear (29), and/or a magnetic clutch (19). The magnetic gear (29) may incorporate arrow shaped magnets (28). (FIG. 2) A machine (101) including a vertical rotatable shaft (4b) levitated by magnets (5) so as to minimize frictional losses. Magnets (5) are arranged on the machine body (7) and/or the shaft (4b) of the machine (101) to thereby exert a repelling force so that the rotating shaft (4b) is uplifted against gravitational forces. The machine (101) may additionally or alternatively incorporate a magnetic bearing (6), a variable inertia flywheel (24), a magnetic gear (29), and/or a magnetic clutch (19). The magnetic gear (29) may incorporate arrow shaped magnets (28). (FIG. 2) ct c t m a c h i n e ( ) i n c l u d i n g a v e r t i c a l r o t a t a b l e s h a f t ( b ) l e v i t a t e d b y m a g n e t s ( ) s o a s t o m i n i m i z e f r i c t i o n a l l o s s e s a g n e t s ( ) a r e a r r a n g e d o n t h e m a c h i n e b o d y ( ) a n d o r t h e s h a f t ( b ) o f t h e m a c h i n e ( ) t o t h e r e

VERTICAL AXIS WIND TURBINE

Resumen de: WO2025229448A1

The present invention is enclosed in the field of wind turbines, in particular to a vertical axis wind turbine. It is an object of the present invention a vertical axis wind turbine (1) comprising a central shaft located at a vertical axis, one internal disc (3), at least three blades (4) circumferentially positioned around the internal disc (3), a base and a top cover comprising a central hole adapted to receive the central shaft, wherein each blade comprises a vertical pivot element attached to the base or to the top cover and being located at a fixed radial distance to the central shaft, each blade (4) being connected to the internal disc (3) by a rigid connection element (6) and at least three blades (4) being connected to the internal disc (3) by at least one actuator mechanism (7). The vertical axis wind turbine allows the control of the blade position between a maximum and a minimum opening position, thereby preventing overspinning in high wind speed conditions and facilitating wind capture during low wind speed conditions.

IMPROVEMENTS RELATING TO HYDRAULIC SYSTEMS FOR WIND TURBINES

Nº publicación: WO2025228494A1 06/11/2025

Solicitante:

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

Resumen de: WO2025228494A1

A wind turbine comprising a hydraulic system having a hydraulic fluid supply system located in a stationary reference frame, and a hydraulic fluid using system located in a rotary reference frame. A rotary union module is provided for conveying hydraulic fluid between the stationary reference frame and the rotating reference frame. The rotary union module comprises: a rotary union module having a stationary component providing a stationary hydraulic coupling in communication with the hydraulic fluid supply system, and a rotatable component providing a rotatable hydraulic coupling communicating with the hydraulic fluid using system. An adapter is provided which is configured to join to the rotary union module at the rotatable component. The adapter comprises a module-side coupling configured to interface with the rotatable hydraulic coupling of the rotary union module and a pipe-side coupling configured to interface with at least a first hydraulic pipe, wherein the adapter is provided with a first conduit extending between the pipe-side coupling and the module-side coupling, and wherein the adapter further comprises a drain passage that extends from a tapping point at the first conduit. The drain passage may be configured to lead to a low-pressure drain area such as a tank or low-pressure side of a fluid pump.