An offshore wind turbine comprising a buoyancy structure intended to provide a buoyancy force to support the wind turbine, wherein said buoyancy structure comprises at least one floater tank and a damping structure extending radially outward from the floater tank to damp forces due to heave, pitch or roll.
B63B 35/44 - Constructions, magasins, plates-formes de forage ou ateliers flottants, p. ex. portant des appareils séparateurs huile-eau
B63B 39/06 - Installations pour diminuer le tangage, le roulis ou autres mouvements similaires indésirables du navireAppareils pour indiquer l'assiette du navire réduisant les mouvements du navire par l'effet d'ailerons agissant sur l'eau ambiante
A permanent magnet rotor comprises a rotor body configured for rotating around a central rotational axis and further comprises principal permanent magnets that are substantially rectangular in axial cross-section and are embedded in the rotor body and are arranged inclined with respect to the radial plane extending through the centre of the principal magnets and such as to have a circumferential magnetic orientation. The principal magnets have an inner end and an outer end, the outer end being arranged in the proximity of the air gap of the outer circumference of the rotor, and outer bridges of magnetically conductive material being formed between the outer ends of the principal magnets and the outer circumference of the rotor. Auxiliary magnets are arranged near the outer ends of the principal magnets to magnetically saturate the outer bridges.
A rotor assembly for a wind turbine comprises a hub (20), a blade (10) provided with a blade root portion (11) and a strengthener for the blade root portion. The strengthener comprises a supporting part (30; 40) that strengthens the blade root portion and the supporting part comprises a supporting portion (31; 41) to temporarily support the blade. The supporting portion is made in one piece with the supporting part. The rotor assembly also comprises a number of first fasteners (50) and second fasteners (51) to fasten the blade root portion to the hub. The second fasteners are adapted to fasten the supporting part of the strengthener to the blade root portion when the latter is not fastened to the hub.
It comprises at least one substantially elongated pin (250) associated with a wind turbine tower (120) and at least one corresponding substantially elongated pile (210) to be inserted into a surface (SB) and adapted for receiving at least one portion of the pin (250). A chamber (260) is defined between the pin (250) and the pile (210) for receiving grout. At least one of the pin (250) and the pile (210) is provided with connecting plates (300a, 300b) extending inside the grouting chamber (260) which are provided with holes (310a, 310b) through which the grout passes. The connecting plates (300a, 300b) may extend radially inside the grouting chamber (260), aligned or not to each other or with the centre (C) of the pin (250) or the pile (210).
E02B 17/00 - Iles artificielles montées sur pilotis ou supports similaires, p. ex. plates-formes sur pieds extensiblesProcédés de construction de celles-ci
E04H 12/22 - Semelles ou montures pour pylônes ou poteaux
F03D 1/00 - Mécanismes moteurs à vent avec axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
A permanent magnet rotor comprising a rotor rim and a plurality of permanent magnet modules arranged on the outer or inner circumference of the rotor rim, the permanent magnet modules extending generally along an axial direction and being of substantially constant axial-cross section, and comprising a base adapted to be fixed to the rim of the generator rotor, and one or more permanent magnets, wherein the permanent magnet module is integrally formed in axial cross-section, and wherein the permanent magnets are embedded in the modules..
A permanent magnet rotor comprising a rotor rim and a plurality of permanent magnet modules arranged on the outer or inner circumference of the rotor rim, the permanent magnet modules extending generally along an axial direction and being of substantially constant axial-cross section, and comprising a base adapted to be fixed to the rim of the generator rotor, one or more permanent magnets, and one or more pole pieces, wherein each of the permanent magnets has a circumferential magnetic orientation and is substantially rectangular in axial cross-section and wherein each of the permanent magnets is inclined with respect to the central radial plane of the module.
A permanent magnet rotor comprising a rotor rim and a plurality of permanent magnet modules arranged on the outer or inner circumference of the rotor rim, the permanent magnet modules extending generally along an axial direction and being of substantially constant axial-cross section, and comprising a base adapted to be fixed to the rim of the generator rotor, one or more permanent magnets, and one or more pole pieces, wherein the permanent magnet modules comprise an axial cooling channel extending substantially along the length of the modules.
An air conditioning system for a wind turbine, comprising at least one adjustable air intake, one adjustable air exhaust and a variable air flow generator, wherein said adjustable air exhaust is adapted to maintain the pressurization level in the wind turbine within a predetermined range. Further disclosed is a method for ventilating and pressurizinga wind turbine.
F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
An offshore wind turbine comprising a buoyancy structure intended to provide a buoyancy force to support the wind turbine, wherein said buoyancy structure comprises at least one floater tank which, in use, contains a pressurized gas.
Method of operating a wind turbine comprising a plurality of blades rotatable along their longitudinal axes using a pitch mechanism, and comprising one or more movable trailing edge surfaces. The method includes predicting,at a first moment in time,a high load for one or more of the blades at a second moment in time. The method further comprises actuating on one or more of the movable trailing edge surfaces of these blades such that the trailing edge surfaces have a wider range of control to counteract the predicted high loads before the second moment in time, and simultaneously pitching the blades such as not to negatively affect the operation of the wind turbine. The method furthermore comprises,at the second moment in time, actuating the one or more movable trailing edge surfaces of the at least one or more blades to counteract the high loads.
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
11.
LOCKING ARRANGEMENT FOR A WIND TURBINE AND WIND TURBINE HAVING SUCH LOCKING ARRANGEMENT
It comprises a locking member (110) having a longitudinal axis (140) that is contained in a working plane (W) where shear forces are concentrated defined in a locking position. The working plane (W) is arranged substantially parallel to the axis of rotation (210) of the parts (200, 300) to be locked when in said locking position in which at least one part (200) of the wind turbine is prevented from being rotated relative to at least another part (300) around said axis of rotation (210). A Wind turbine generator is provided having a rotor (200) with a rotor flange portion (220) and a stator (300) with a stator flange portion (320), with both flange portions (220, 320) being complimentarily shaped defining a locking housing (150) for receiving said locking member (110).
Repairing method of a generator winding comprising a rotor and a stator, whereby rotor or stator comprise a plurality of windings, which consist of a stack of conductor turns around a tooth (11). The method consists in cutting the winding on one side of the tooth (11) to separate it into two parts, removing the two parts from the tooth (11), sliding a substitute, partial coil (20) on the tooth (11), the substitute, partial coil (20) comprises a stack of incomplete conductor turns (201, 202, 203) each having a first end (20e) and a second end (20d) and is positioned on the same side of the tooth (11) and connecting the second ends of one incomplete turn (e.g. 201) with a first end of the next incomplete turn (e.g. 202) using a second plurality of conductor portions (30, 301, 302). Further a kit for such a substitute coil.
H02K 15/04 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques d'enroulements avant leur montage dans les machines
H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p. ex. à des turbines
H02K 15/00 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques
13.
WIND TURBINE BLADE AND METHOD OF CONTROLLING THE LIFT OF SUCH A BLADE
Wind turbine blade comprising a shape modifiable airfoil section (1; 2) that extends both chordwise and spanwise and has a not modified default shape, a conduit (15; 25; 35, 36; 45) that extends from the inside of the blade towards the outside of the blade, and an outer part comprising a flow regulator that is located at the shape modifiable airfoil section and blocks the conduit when the shape modifiable airfoil section presents its default shape, and does not block the conduit when the shape modifiable airfoil section presents a modified shape. In the latter situation the conduit is opened to the outside of the blade and a device for exchanging a fluid between the inside and the outside of the blade is thus defined.
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
B64C 3/48 - Variation de la courbure par parties semi-mobiles des structures d'ailes
14.
METHOD FOR AVOIDING VOLTAGE INSTABILITY IN AN ELECTRICAL GRID OF AN OFFSHORE WIND PARK
Method for avoiding voltage instability in an electrical grid of an offshore wind park, the offshore wind park electrical grid being connected at a first end of a high voltage alternating current (HVAC) transmission and the main land electrical grid being connected at a second end of the HVAC transmission, each of the wind turbines being connected to the wind park electrical grid, the method comprises determining a main land phase angle at or near the second end of the HVAC transmission; measuring an individual wind turbine phase angle at one or more wind turbines; determining the difference between each of the measured individual wind turbine phase angles and the main land phase angle; and determining whether the difference between one of the measured individual wind turbine phase angle and the main land phase angle exceeds a threshold phase angle difference.
Wind turbine rotor comprising a hub (10), blades and at least one pitch system for rotating a blade along its longitudinal axis, the pitch system comprising a motor, a drive pinion, an annular gear arranged to mesh with the drive pinion and a pitch bearing that comprises an outer bearing ring, an inner bearing ring and, between these two bearing rings, one or more rows of rolling elements allowing both bearing rings to rotate relative to each other. One of the hub and blade is connected to the inner bearing ring and the other of the hub and blade is connected to the outer bearing ring, and wherein a reinforcing disc (24) is axially fixed to the bearing ring to which the blade is connected at a side facing the hub, the disc being fixed to the bearing ring by the same fasteners connecting the blade to the bearing.
F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
F03D 1/00 - Mécanismes moteurs à vent avec axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
16.
A METHOD FOR DAMPENING OSCILLATIONS IN A WIND TURBINE
A method for dampening oscillations in a wind turbine, the wind turbine having a tower (1), a rotor (3) rotating about an X axis, and a plurality of blades (4) with adjustable pitch, said method comprising monitoring the fore-aft oscillation of the tower in the direction of the X axis, at the 2nd or a higher bending mode frequency; determining a compensating torque to be applied by the rotor to the tower about a Y axis, which is horizontal and at right angles to the X axis, for dampening said oscillation at the 2nd or higher bending mode frequency; determining for each rotor blade an adjustment of the pitch angle suitable to generate said compensating torque about the Y axis; and adjusting the pitch angle ß1, ß2, ß3 of at least one of the individual blades to generate at least part of said compensating torque.
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
It comprises stator segments (110) forming a stator structure (100) and a transverse structure (200) connected to the stator structure (100) and arranged between at least two stator segments (110). The transverse structure (200) may have reinforcing ribs (280a, 280b) extending therealong and handling means (300) at longitudinally opposite portions (250, 260) of the transverse structure (200). A wind turbine generator comprising a rotor and said stator assembly and a wind turbine comprising such a generator are also provided.
The rotor assembly (10) comprises a number of rotor segments (110) forming a rotor structure (100) and a central structure (200) connected to the rotor structure (100) and at least partially arranged between at least two of the rotor segments (110), for example surrounded by the rotor structure. A wind turbine generator comprising a stator assembly (300) and said rotor assembly (10) and a wind turbine comprising such a generator are also provided.
H02K 1/30 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor utilisant des pièces intermédiaires, p. ex. des croisillons
H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p. ex. à des turbines
Wind turbine rotor comprising a hub (10), a plurality of blades and at least one pitch system for rotating a blade substantially along its longitudinal axis, the pitch system comprising a bearing (20), a motor and a gear system (30), said gear system comprising a driving pinion (31) operationally connected with the motor, an annular gear (32) arranged to mesh with the driving pinion, and additional gear teeth (332), the additional gear teeth being arranged to mesh with other parts of the gear system at least in a predefined blade position for wind speeds at or below nominal wind speed, and arranged such that upon movement from said predefined blade position, the additional gear teeth come into contact with said other parts of the gear system before the driving pinion comes into contact with the annular gear.
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
F03D 11/02 - Transmission de la puissance, p.ex. en utilisant des aubes d'aspiration creuses
F16H 1/28 - Transmissions à engrenages pour transmettre un mouvement rotatif avec engrenages à mouvement orbital
It comprises a first member (10) with a plate (10a) attached and substantially covering at least one portion of a second member (20), both members (10, 20) being rotatable relative to each other and defining a tortuous way (30), and it further comprises a brush sealing (40) attached to the first member (10) and resting on a siding plate (90, 90a, 90b) in the second member (20) such that an inner gap (50) formed between said first and second members (10, 20) is sealed. A flexible member (45) may be provided between the brush sealing (40) and the first member (10) for joining them in a flexible way.
F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
F16J 15/32 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques
Method of operating a wind turbine in response to a wind speed, the wind turbine having at least a rotor (10) with a plurality of blades and a generator (20) comprising a generator rotor (24) and a generator stator, the method comprising, at wind speeds above a first wind speed, increasing the pitch angle of the blades and reducing the rotor speed with increasing wind speed, said first wind speed being superior to the nominal wind speed; wherein at a second wind speed, the speed of the generator rotor is equal to the synchronous generator rotor speed, said second wind speed being superior than said first wind speed; and wherein at wind speeds superior to said second wind speed, the speed of the generator rotor is lower than the synchronous generator rotor speed.
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
H02P 9/00 - Dispositions pour la commande de génératrices électriques de façon à obtenir les caractéristiques désirées à la sortie
Wind turbine comprising a main generator; a tower with a frame; a hub carrying one or more blades and being rotatably mounted on the frame; a plurality of power-producing windings mounted to the hub and a plurality of magnetic field windings mounted to the frame, in such a way that said power-producing windings and said magnetic field windings make up at least one auxiliary asynchronous generator; a power source; and a power electronic converter for each auxiliary asynchronous generator. Each power electronic converter being electrically connected with the power source and with the magnetic field windings of its related auxiliary asynchronous generator, such that each power electronic converter can control operation of its related magnetic field windings.
F03D 9/00 - Adaptations des mécanismes moteurs à vent pour une utilisation particulièreCombinaisons des mécanismes moteurs à vent avec les appareils qu’ils entrainentMécanismes moteurs à vent spécialement adaptés à l’installation dans des endroits particuliers
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
Wind turbine rotor comprising a hub, a plurality of blades and at least one pitch system for rotating a blade substantially along its longitudinal axis. The pitch system comprises a bearing, a gear and a pitch drive. The pitch drive is arranged on a flange and has a motor and a pinion which meshes with the gear. The flange is provided with a hole and an intermediate support is concentrically arranged with respect to the hole. The intermediate support comprises an off-center opening with respect to a central axis of the hole and the pitch drive is mounted through said off-center opening. The position of the off-center opening is such that the intermediate support can be arranged in a first and a second position in which the drive pinion meshes with a first and second section of the gear respectively.
F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
F03D 11/02 - Transmission de la puissance, p.ex. en utilisant des aubes d'aspiration creuses
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
It comprises a rotatable hub (410) carrying blades (420) and means (100) for attaching a portion (425) of the blades (420) to a portion (415) of the hub (410). The attaching means (100) comprise bushings (200) inside of which corresponding studs (300) can be secured. At least some of the bushings (200) are provided with at least one securing end (250) adapted for providing the stud (300) with a degree of rotation relative to the bushing (200). Bushings (200) may include an inner receiving member (260) for receiving a corresponding end (310) of the stud (300). The receiving member (260) can be rotated inside the bushing (200) around an axis (y).
It comprises bushings (200) in at least a first circumferential row (R1; R2) in a blade portion (110) and suitable for receiving studs (300) in a hub portion. Bushings (200) comprise an elongated body with lateral faces (200a, 200b), lateral faces (200a, 200b) inclined to each other and major and minor faces (200c, 200d) into which the lateral faces converge. The connector assembly allows an efficient releasable connection of blade root (110) and hub in a wind turbine rotor.
Wind turbine generator comprising a rotor, a stator and an air gap between a gap-delimiting region of the stator and a gap-delimiting region of the rotor; wherein the rotor and/or the stator are deformable under operational loads and configured in such a way that the air gap resulting from the presence of operational loads is more uniform than the air gap in the absence of operational loads. Method for optimizing an air gap between a gap-delimiting region of a stator and a gap-delimiting region of a rotor of a wind turbine generator, said rotor and/or said stator being deformable under operational loads and said optimization consisting in that the air gap resulting from the presence of the set of operational loads is more uniform than the air gap in the absence of the set of operational loads.
F03D 9/00 - Adaptations des mécanismes moteurs à vent pour une utilisation particulièreCombinaisons des mécanismes moteurs à vent avec les appareils qu’ils entrainentMécanismes moteurs à vent spécialement adaptés à l’installation dans des endroits particuliers
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
Wind turbine rotor comprising a hub, a plurality of blades and at least one pitch system for rotating a blade substantially along its longitudinal axis, the pitch system comprising a motor, a drive pinion, a gear arranged to mesh with the drive pinion and a pitch bearing, the pitch bearing comprising an outer bearing ring connected to the hub, an inner bearing ring connected to a blade and, between these two bearing rings, one or more rows of rolling elements which allow both bearing rings to rotate relative to each other, wherein the inner bearing ring has an inner side, and wherein a reinforcement disc is radially fixed to the inner side of the inner bearing ring.
F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
Wind turbine rotor comprising a hub, a plurality of blades, at least one pitch system for rotating a blade substantially along its longitudinal axis and at least one pitch retention system, wherein a pitch retention system comprises a cam profile and a cam follower, and one of the hub and a blade comprises said cam profile and the other of the hub and blade comprises said cam follower, and wherein the cam follower comprises a pushing member and a contact member, wherein the pushing member is arranged to push the contact member towards the cam profile, and the cam profile comprises a local depression, and wherein the cam follower and cam profile are arranged such that when the blade is in a pitch position at or below nominal wind speed, the contact member can be retained in said local depression.
F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
Wind turbine auxiliary drive system comprising a motor, a drive pinion, a bearing and a lubrication system, the bearing comprising an outer bearing ring, an inner bearing ring and, between these two bearing rings, one or more rows of rolling elements which allow both bearing rings to rotate relative to each other, the inner bearing ring having an inner side comprising a gear which meshes with the drive pinion, wherein a height of the gear in an axial direction is smaller than the height of the inner bearing ring such that a gearless portion is defined, and wherein at least one lubricant inlet and/or at least one lubricant outlet is arranged on said gearless portion.
F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
30.
WIND TURBINE AND METHOD OF OPERATING A WIND TURBINE
A method of operating a wind turbine comprising a rotor, a multi winding generator (10) having a plurality of independent sets of control windings (11, 12, 13) and a plurality of independent power electronic converters (21, 22, 23) for controlling each set of control windings independently, the method comprising in a normal operation mode, the plurality of power electronic converters controlling the sets of control windings in substantially the same way, whereas in a positioning mode for positioning a rotor of a wind turbine in one of one or more predetermined angular positions, one of the independent power electronic converters controlling its corresponding set of control windings in a substantially different manner than at least one other independent power electric converter. The invention further relates to a wind turbine adapted to work in at least two different operating modes.
F03D 9/00 - Adaptations des mécanismes moteurs à vent pour une utilisation particulièreCombinaisons des mécanismes moteurs à vent avec les appareils qu’ils entrainentMécanismes moteurs à vent spécialement adaptés à l’installation dans des endroits particuliers
H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions
H02P 9/00 - Dispositions pour la commande de génératrices électriques de façon à obtenir les caractéristiques désirées à la sortie
Generator rotor comprising a rotor rim and a plurality of permanent magnet modules arranged at one of an inner and outer circumference of said rotor rim, wherein the rotor rim comprises a plurality of rotor rings separated by gaps between them, and attached to each other via a plurality of axial strips fixed to the other of the inner and outer, the permanent magnet modules comprise a base and one or more rows of magnets mounted on a top surface of said base, and wherein the permanent magnet modules are fixed to the strips by a plurality of fasteners extending through the gaps between the rotor rings.
H02K 1/27 - Noyaux rotoriques à aimants permanents
H02K 1/30 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor utilisant des pièces intermédiaires, p. ex. des croisillons
It comprises at least one shell portion (110) for forming a shell segment of a wind turbine tower and a flange portion (120) attached to the shell portion (110). The flange portion (120) comprises flange sectors (125) separated to each other by corresponding spaces (150) defining a discontinuous flange portion (120). The shell portion (110) includes apertures (180) formed in correspondence with the spaces (150) between adjacent flange sectors (125). The flange sectors (125) are formed with at least one base portion (130) extending from at least one face (111; 112) of the shell portion (110) at an angle (a) to the shell portion (110). The base portion (130) may have a varying thickness (t).
Generator rotor comprising a rotor rim and a plurality of permanent magnet modules and a plurality of anchors arranged at an outer or inner circumference of the rotor rim such that the anchors substantially fix the permanent magnet modules to the rotor, wherein the permanent magnet modules comprise a base having a bottom surface, two axially extending side surfaces and a top surface, and one or more rows of magnets mounted on said top surface, wherein the two side surfaces of the permanent magnet modules each comprise an axially extending groove, and wherein the anchors have a shape that substantially fits exactly in axially extending grooves of neighbouring permanent magnet modules.
H02K 15/03 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques comportant des aimants permanents
H02K 1/27 - Noyaux rotoriques à aimants permanents
In a first aspect, the present invention provides a blade pitch system (100) for a wind turbine, comprising at least one multi winding (102, 103) motor (101) comprising a main independent set of control windings (102) and at least one auxiliary independent set of control windings (103); and at least a main independent power electronic converter (105) for controlling the main independent set of control windings (102), and an auxiliary independent power electronic converter (104) for controlling the auxiliary independent set of control windings (103).
Wind turbine comprising a hub carrying a plurality of blades, the hub being rotatably mounted on a frame, the frame extending forward into the hub, wherein the frame comprises a manhole arranged in an upper side of the portion of the frame extending forward into the hub and the frame being dimensioned such that an average-size adult human can move around through it at least up to the manhole.
F03D 1/00 - Mécanismes moteurs à vent avec axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
Wind turbine comprising a rotor having a hub carrying one or more blades, an air intake and a nacelle, the hub being rotatably mounted on a frame and the frame extending forward into the hub, wherein an air flow passage is provided between an inside portion of the hub and the nacelle via at least one first opening to the hub.
F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
Wind turbine nacelle comprising a slewing crane, wherein the crane comprises a base structure attached at a roof of the nacelle, a beam rotatably mounted about said base structure, and a hoist movably arranged on said beam.
B66C 17/04 - Ponts roulants à chariot transbordeur comportant une ou plusieurs poutres principales sensiblement horizontales dont les extrémités reposent directement sur des roues ou des rouleaux se déplaçant sur une voie soutenue par des supports espacés avec palonniers de levage, p. ex. palonniers sur pivot portant l'élément de prise de la charge, p. ex. un aimant, un croc
B66C 23/18 - Installations comportant essentiellement un palonnier, une flèche ou une structure triangulaire agissant comme bras de levier, montées de façon à permettre des mouvements de translation ou d'orientation dans des plans verticaux ou horizontaux, ou bien une combinaison de ces mouvements, p. ex. grues à flèche, derricks ou grues sur tours spécialement adaptées pour être utilisées dans des emplacements particuliers ou à des usages particuliers
B66C 23/30 - Installations comportant essentiellement un palonnier, une flèche ou une structure triangulaire agissant comme bras de levier, montées de façon à permettre des mouvements de translation ou d'orientation dans des plans verticaux ou horizontaux, ou bien une combinaison de ces mouvements, p. ex. grues à flèche, derricks ou grues sur tours spécialement adaptées pour être utilisées dans des emplacements particuliers ou à des usages particuliers pour être utilisées sur des chantiers de constructionInstallations comportant essentiellement un palonnier, une flèche ou une structure triangulaire agissant comme bras de levier, montées de façon à permettre des mouvements de translation ou d'orientation dans des plans verticaux ou horizontaux, ou bien une combinaison de ces mouvements, p. ex. grues à flèche, derricks ou grues sur tours spécialement adaptées pour être utilisées dans des emplacements particuliers ou à des usages particuliers faites, p. ex. de pièces détachées, pour permettre un assemblage ou démontage rapides, pour travailler à des niveaux de plus en plus élevés, pour être transportées par route ou par rail faites pour travailler à des niveaux de plus en plus élevés avec charpente composée d'éléments télescopiques
F03D 1/00 - Mécanismes moteurs à vent avec axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
The device (200) comprises image capturing means (210) for acquiring at least one image of at least one portion of wind turbine blade (40) are adapted for being triggered to acquire said image according to parameters related to the wind turbine blade such as blade azimuth and blade pitch at a given time. Acquired images are compared with predetermined reference images having such parameters associated therewith. Other parameters such as blade surface temperature or wind speed may be used. The image capturing means may comprise a CCD device mounted on an upper portion in a wind turbine nacelle. An alarm signal can be sent to warn an operator for any abnormalities on the wind turbine blade surface.
F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
39.
METHOD FOR ASSEMBLING SHELL SEGMENTS FOR FORMING TOWER SECTIONS OF A HYBRID WIND TURBINE TOWER
It comprises the steps of providing at least two metal shell segments (15) arranged adjacent to each other, forming a column of concrete (40) on at least a joint portion of adjacent shell segments (15), placing a formwork (50) to form said column of concrete (40), assembling a support framework (20) before the step of providing shell segments (15), providing an auxiliary sub-structure (10) internal to the shell segments (15), and an attaching formwork (50) associated both with the internal support framework (20) and to the shell segments (15). The assembling of the internal support framework (20) may be carried out by providing at least a first series of auxiliary pillars (60), joining the auxiliary pillars (60) to each other to form a first auxiliary sub-structure (10) and arranging an attaching formwork (50) attached to said auxiliary pillars (60).
F03D 1/00 - Mécanismes moteurs à vent avec axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
E04H 12/08 - Structures faites en matériaux spécifiés en métal
E04H 12/12 - Structures faites en matériaux spécifiés en béton ou autre matériau analogue à la pierre, avec ou sans armature interne ou externe, p. ex. avec revêtements métalliques, avec éléments de coffrage permanents
The invention relates to a wind turbine rotor comprising a hub, a plurality of blades, and at least one pitch mechanism for rotating at least one of the blades, each pitch mechanism comprising a partial ring gear, a pitch bearing, a pinion that is arranged to mesh with the partial or complete ring gear and a pitch motor arranged for driving said pinion, wherein the pitch bearing is mounted between the hub and a blade, and the ring gear is mounted on the hub or on the blade. The invention further relates to a method of repairing a partial or complete ring gear in a wind turbine rotor, the ring gear comprising a plurality of segments, the method comprising detaching at least a segment of the ring gear and attaching the ring gear in a modified configuration.
F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
41.
METHOD FOR REDUCING OSCILLATIONS IN OFFSHORE WIND TURBINES
The invention relates to a method of reducing oscillations in an offshore wind turbine comprising one or more thrusters, the method comprising determining an oscillation of the offshore wind turbine and operating the one or more thrusters such that the oscillation is reduced. The invention further relates to an offshore wind turbine comprising one or more underwater thrusters, oscillation determination system for determining an oscillation of the wind turbine and a control system for operating the underwater thrusters in response to signals received from the oscillation determination system.
B63B 35/44 - Constructions, magasins, plates-formes de forage ou ateliers flottants, p. ex. portant des appareils séparateurs huile-eau
B63B 39/00 - Installations pour diminuer le tangage, le roulis ou autres mouvements similaires indésirables du navireAppareils pour indiquer l'assiette du navire
B63H 25/42 - Gouverne ou ancrage dynamique à l'aide d'éléments propulsifsGouverne ou ancrage dynamique à l'aide d'hélices uniquement utilisées à cet effetGouverne ou ancrage dynamique à l'aide de gouvernails portant des hélices
F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
A blade for a wind turbine comprising a blade root portion (11) for attachment to a mounting flange (12) of the wind turbine, the blade root comprising a plurality of first holes (13) provided with an internal bushing (14) wherein the bushings comprise a first end (141) at or near a mounting surface of the blade root and an opposite second end (142) embedded in their corresponding first holes, and whereinoneor moreinternal bushing being guiding bushings, the guiding bushings comprisinga first end that is adapted to guide the blade root with respect to a mounting flange.
F03D 1/00 - Mécanismes moteurs à vent avec axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
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