A method of repairing a wind turbine blade including a resin containing a cleavable functional group is provided, the method including applying an acidic aqueous liquid including an acid to a portion of a surface of the wind turbine blade, heating the portion of the surface of the wind turbine blade, applying a basic aqueous liquid including a base to the portion of the surface of the wind turbine blade. In addition, a repaired wind turbine blade obtainable by this method is also provided.
B29C 73/02 - Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass using liquid or paste-like material
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
2.
TEMPERATURE ESTIMATION MODEL AND METHOD FOR AN ELECTRICAL GENERATOR
A method of temperature estimation of an electrical generator including plural generator components is provided including a rotor, and a stator having teeth and windings, the method including: using a thermal model for the generator including plural elementary thermal modeling elements partially connected to each other in a network for modeling heat conduction, wherein at least one elementary thermal modeling element includes: a first and a second error compensation thermal resistance (R_m1, R_m2) connected in series between a star point and a heat providing and/or absorbing system; the method including: estimating plural values of temperature for the plural elementary modeling elements by feeding plural values of the operational parameters into the thermal model and modeling heat transfers between and within the plural generator components or portions according to connectivities and thermal resistances within the network and within the elementary thermal modeling elements.
A main bearing unit of a wind turbine drivetrain is provided, including a tapered roller bearing arranged between a housing of the main bearing unit and the low-speed shaft of the drivetrain; a press-fit connection between an inner surface of the housing and the outer surface of the bearing cup; and facilitating an axial displacement of the bearing cup to reinstate preload force on the bearing. A method of reinstating a preload force in a bearing of such a main bearing unit is further provided.
F16C 19/36 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
4.
AN AUTONOMOUS ANOMALY DETECTION SYSTEM, OFFSHORE ARRANGEMENT AND ASSOCIATED METHODS
Method (300), offshore arrangement (124) and autonomous anomaly detection system (202) suitable for offshore wind turbines (112), comprising unmanned vehicles, in particular an aerial vehicle (108) and an underwater vehicle (110), the system capable of comparing data derived from captured images and/or measured distances from the unmanned vehicles, with reference data under reference conditions, to detect discrepancies, anomalies or fault conditions in assembly or pre-assembly phases, in particular through a tolerance comparison, which allows for early detection of potential issues, such as misalignments and structural defects, wherein the system may further comprise machine-readable scanning capabilities to detect machine-readable identifier (126) arranged on components of the wind turbine, to facilitate tracking, certificate emission, and may facilitate 3D generation and/or pinpoint location of defects.
Prestressing device designed to be inserted into a hole in a component to suppress an ovalization of the hole when the component is loaded is provided. The device includes a sleeve and a tensioning mechanism, wherein the device is designed to be inserted into the hole along an insertion axis and the tensioning mechanism is designed to deform the sleeve in such a way, that the diameter of the outer surface of the sleeve in the radial direction with respect to the insertion axis can be increased from a first diameter to a second diameter in at least one axial section of the sleeve.
A wind turbine is provided. The wind turbine includes a DC-distribution network, connected or connectable at a DC connection node to receive DC power; and at least one variable drive system connected or connectable to the DC-distribution network. Methods for operating a wind turbine are also provided.
F03D 9/25 - Wind motors characterised by the driven apparatus the apparatus being an electrical generator
F03D 7/02 - Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
F03D 80/80 - Arrangement of components within nacelles or towers
H02P 9/30 - Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
H02P 101/15 - Special adaptation of control arrangements for generators for wind-driven turbines
Condition monitoring arrangement The invention describes a condition monitoring arrangement (1) of a fluid-film bearing (20) arranged to support the generator (21, 22) of a direct-drive wind turbine (2), comprising a plurality of bearing activity sensors (10), each arranged to collect bearing activity data (10D) during operation of the wind turbine (2); a local data evaluation arrangement (11, 12) adapted for installation in the wind turbine (2) and comprising a data reduction module (11) adapted to reduce the quantity of collected bearing activity data (10D); and a threshold comparator (12) configured to compare the reduced bearing activity data (10Dred) with a number of threshold values (121) to obtain threshold comparator output (1213, 1214) for use as a basis upon which to control that wind turbine (2). The invention further describes a method of monitoring the condition of a fluid-film bearing (20) arranged to support the generator (21, 22) of a direct-drive wind turbine (2); and a direct-drive wind turbine (2) comprising an instance of the inventive condition monitoring arrangement (1).
It is described an apparatus (10) for applying a tape (11) to a blade (6) of a wind turbine (1), wherein the tape (6) comprising a plurality of vortex generators (VG) or indicating locations for attaching a plurality of vortex generators (VG) on the blade (6). The apparatus (10) is configured to be movable on a floor (12) in a moving path in accordance with a longitudinal direction of the blade (6) and comprises a portal (13) having a tape application tool (14) configured to apply the tape (11) to the blade (6), the tape application tool (14) being movable along the portal (13) in a vertical direction; and a distance detecting device (15), preferably a laser distance measuring device, being configured to detect an actual distance between the tape application tool (14) and the floor (12), preferably being configured to detect reference markings (16) arranged at the floor (12) or at a blade carrying equipment such as a root- and tip turning device along the moving path of the apparatus (10).
The present invention describes a generator (100) for a wind turbine, comprising a rotor device (101) rotatable around a rotary axis (107), a stator device (102) comprising a winding arrangement (103), wherein between an axial end of the stator device (102) and the rotor device (101) a cooling volume is formed, and an air guiding arrangement (120) arranged within the cooling volume for separating the cooling volume into a radial inner section (112) and a radial outer section (113). The air guiding arrangement (120) forms an air inlet opening (104), such that cooling air (111) is flowable from the radial inner section (112) against the air guiding arrangement (120) and through the air inlet opening (104) into the radial outer section (113), wherein the winding arrangement (103) extends from the axial end of the stator into the radial outer section (113).
H02K 3/24 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
F03D 9/25 - Wind motors characterised by the driven apparatus the apparatus being an electrical generator
An electrical machine is provided, in particular a dual three-phase fractional slot synchronous machine, including: a stator providing plural slots between plural teeth; a first multi-phase winding set; and a second multi-phase winding set, wherein the first winding set and the second winding set are both provided as star-delta connection and at least partially arranged in the slots and wound around the teeth.
H02K 3/28 - Layout of windings or of connections between windings
H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
H02K 15/065 - Windings consisting of complete sections, e.g. coils or waves
H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
A support assembly for an offshore installation is provided, which support assembly includes a transition piece for mounting onto an offshore foundation; a plurality of support shelves, wherein each support shelf extends radially outward from the transition piece; a platform to accommodate equipment of the offshore installation, which platform includes a mounting sleeve dimensioned to fit about the transition piece; and wherein the mounting sleeve includes a plurality of downwardly-extending portions, each dimensioned to fit between two adjacent support shelves; and a plurality of lateral cut-outs, each formed in a downwardly-extending portion and shaped to receive a support shelf. An offshore wind-powered water electrolysis plant including such a support assembly, and a method of installing such a support assembly is also provided.
E02B 17/00 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor
C25B 9/65 - Means for supplying currentElectrode connectionsElectric inter-cell connections
F03D 13/20 - Arrangements for mounting or supporting wind motorsMasts or towers for wind motors
F03D 13/25 - Arrangements for mounting or supporting wind motorsMasts or towers for wind motors specially adapted for offshore installation
12.
METHOD OF MODIFYING A COMPOSITE MATERIAL OF FIBER REINFORCED POLYMER RESIN AND A METHOD OF ADHERING A PART OF A WIND TURBINE BLADE OR A NACELLE TO A SECOND SURFACE BY MEANS OF THE POLYMER RESIN
A method of modifying a composite material of fiber reinforced polymer resin, in particular constituting a wind turbine blade, a nacelle or a part thereof, is described. The method comprises providing a composite material of fiber reinforced polymer resin, wherein the polymer resin is obtained from a resin composition comprising an epoxy component, an amine component and a (meth)acrylate component, and heating the composite material to a temperature in the range of from 150 to 200 °C. Moreover, a method of adhering a part of a wind turbine blade or a nacelle to a second surface by means of the polymer resin is described.
C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
C08J 11/10 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
Wind turbine rotor positioning A method of operating a wind turbine for positioning a wind turbine rotor of the wind turbine is provided. The wind turbine (100) comprises an electrical generator (10) mechanically coupled to the wind turbine rotor (101) and a power converter system (20), wherein the power converter system (20) comprises at least two parallel power converters (21, 22) providing two parallel paths for exchanging electrical power with the electrical generator (10). The method comprises controlling the power converter system (20) to supply electrical power to the electrical generator (10) to operate the electrical generator as a motor, and upon detecting a failure of a power converter (21) of the power converter system (20), controlling the power converter system (20) to maintain operation of at least one other power converter (22) of the power converter system (20) to continue supplying electrical power to the electrical generator (10) to continue generating torque that is applied to the wind turbine rotor (101).
An arrangement for handling a power cable of an offshore, wind turbine for transportation and/or connecting to a switch gear and/or reconnecting, the arrangement including: a cable support system adapted to support a portion of the power cable; a guiding system being fixedly connectable or connected to a wind turbine tower and being adapted to guide the cable support system along a linear, vertical, track is provided.
A resin composition suitable for use in the production of a wind turbine blade or a part of any of the foregoing by means of a vacuum infusion method is described. The resin composition comprises an epoxy component, a sterically hindered amine component, and a polyfunctional (meth)acrylate component. Moreover, a method of producing a wind turbine blade, a nacelle or a part of any of the foregoing and a respectively produced wind turbine blade, a nacelle or a part of any of the foregoing as well as a method of recycling a wind turbine blade, a nacelle or a part of any of the foregoing are described.
A resin composition suitable for use in the production of a wind turbine blade or a part of any of the foregoing by means of a vacuum infusion method is described. The resin composition comprises an epoxy component, an amine component, and a polyfunctional (meth)acrylate component, wherein at least one of the aforementioned components comprises an acetal and/or a ketal functional group. Moreover, a method of producing a wind turbine blade, a nacelle or a part of any of the foregoing and a respectively produced wind turbine blade, a nacelle or a part of any of the foregoing are described.
Method for installing a rotor blade on a wind turbine and handling toolkit for supporting a rotor blade Method for installing a rotor blade (1) on a wind turbine (2) comprising the steps of supporting the rotor blade (1) in a mounting position (9) by a support structure (10) in such a way, that, at least in a supported section (11) of the rotor blade (1), a longitudinal direction (12) of the rotor blade (2) extends at an angle of less than 45° to a horizontal plane (20), wherein the support structure (10) comprises a support means (13) forming a support surface (21) that is contacting an outer surface (39) of the rotor blade (2), while the rotor blade (2) is supported by the support structure (10), a base (14), and a connection means (15) that connect the support means (13) to a connection area (16) of the base (14) that is arranged at a height below the lowest point (47) of the support surface (21), wherein the connection means (15) is sufficiently rigid to vertically support at least part of the combined weight of the support means (13) and the rotor blade (1) and to allow for a transfer of forces that have a force component within the horizontal plane (20) and/or of a torque between the support means (13) and the connection area (16) of the base (14), mounting the rotor blade (1) to a rotatable component (6) of the wind turbine (2), in particular to a hub, while the rotor blade (1) is supported by the support structure (10), and moving or disassembling the support structure (10) and/or rotating a nacelle (5) to allow for a rotation of the rotatable component (6).
It is described a method of performing deformation and/or orientation analysis of a wind turbine rotor blade, the method comprising: acquiring first position data of a first navigation system probe mounted at the blade to provide position at a first location; acquiring second position data of a second navigation system probe mounted at the blade to provide position at a second location; deriving first direction information at least regarding a relative direction of the first location and the second location based on the first position data and the second position data.
It is described a method of controlling plural wind turbines (2a,2b) being connected to a utility grid (3), comprising respective wind turbine controllers (5a,5b) and being communicatively connected with a plant controller (4), the method comprising for at least one wind turbine: determining, by the plant controller (4), in response to a utility grid event, a reference (6a, 6b) of an operation parameter (P, Q); communicating, from the plant controller (4) to the wind turbine controller (5a, 5b), the plant controller determined reference (6a,6b) of the operation parameter; communicating, from the plant controller (4) to the wind turbine controller (5a,5b), an annotation information (7a,7b) indicating that the reference of the operation parameter has been determined based on the grid event; then controlling, by the wind turbine controller (5a,5b), the wind turbine (2a,2b) based on the plant controller determined reference (6a,6b) of the operation parameter.
Performing deformation analysis of a wind turbine blade It is described a method of performing deformation and/or orientation analysis of a wind turbine rotor blade, the method comprising: acquiring first position data (104) of a first navigation system probe (105, 262a) mounted at the blade to provide position at a first location (263a); acquiring second position data (106) of a second navigation system probe (107, 262b) mounted at the blade to provide position at a second location (263b); deriving first direction information (264) at least regarding a relative direction of the first location (263a) and the second location (263b) based on the first position data and the second position data.
G01B 21/32 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
A method of servicing a wind turbine component of a wind turbine is provided. The wind turbine component is a main component (120) that comprises a first subcomponent (10) and one or more second subcomponents (20), wherein the first subcomponent (10) comprises a subcomponent memory (11) storing component information. The component information comprises information that is specific to the main component (120) of the wind turbine (100). The method comprises reading out at least a portion of the subcomponent memory (11) of a malfunctioning first subcomponent (10) of the main component (120) to obtain the component information of the malfunctioning first subcomponent (10) and writing at least a part of the component information to a subcomponent memory (31) of a replacement subcomponent (30) provided for replacing the malfunctioning first subcomponent (10). The component information is written over a communication link established to the replacement subcomponent (30).
G06Q 10/20 - Administration of product repair or maintenance
22.
METHOD FOR POSITIONING A PREFORM COMPONENT FOR MANUFACTURING A WIND TURBINE BLADE OR A PREFORM ELEMENT FOR A WIND TURBINE BLADE ON A MOLD SURFACE OF A MOLD AND MOLD ARRANGEMENT WITH A MOLD AND A LIFTING ARRANGEMENT
Method for positioning at least one preform component (4) on a mold surface (3) of a mold (2), wherein the preform component (4) is adapted to be used for manufacturing a wind turbine blade or a preform element for a wind turbine blade, wherein the method comprises the following steps: - providing a lifting arrangement (5), comprising a carrying structure (6) and at least one positioning device (19) arranged thereon, wherein the positioning device (19) comprises at least one gripping device (31) and at least one user handling means (37), - moving the positioning device (19) such that the gripping device (31) is brought in contact with the preform component (4), - gripping the preform component (4) by the gripping device (31), - moving the positioning device (19) such that the preform component (4) is brought to a designated position on the mold surface (3), wherein the movement of the positioning device (19) is controlled by a manual operation of a user (38) on the user handling means (37), and - releasing the preform component (4) from the gripping device (31).
A tower (6) or tower section (7, 8, 9) of a wind turbine (1), comprising: a tower wall (47) enclosing a tower inner volume (46), a first pipe (14) arranged inside the tower inner volume (46) and extending in the vertical direction (L) of the tower (6) or tower section (7, 8, 9), and a first high-voltage cable (114) extending through the first pipe (14). In this manner, the high-voltage cable is guided efficiently through the tower or tower section, avoiding the need for clamping the same at close intervals.
A tower (6) or tower section (7, 8, 9) for a wind turbine (1), comprising: a tower shell (10), a platform (11), and a plurality of stays (12), each stay (12) connecting the platform (11) to the tower shell (10), wherein each stay (12) is comprised of at least two stay elements (24, 25) arranged in parallel and adjacent to each other, wherein each of the at least two stay elements (24, 25) is connected at its one end (19) to the platform (11) and at its other end (20) to the tower shell (10).
A control system for a renewable energy power plant is provided. The power plant includes an energy generating system to supply power to a utility grid and having a wind farm with one wind turbine and/or an energy storage system with one energy storage device. It includes a load system to consume and transform energy from the energy generating system and/or the utility grid at each point of time and having one load. The control system includes a fault response system to monitor the status of the energy generating system, monitor the status of the load system, and generate an energy generating system power profile in dependence of a given load system power profile following a voltage deviation of the utility grid for controlling the energy generating system based on the monitored statuses of the energy generating system and the load system to match a given power plant power profile.
A method for manufacturing a preform building element used for building a wind turbine rotor blade, that is manufactured from one or more fiber mat components and at least one further component arranged on a molding surface of a mold, wherein one or more fiber mat components are arranged one after the other on the further component and/or on previously arranged fiber mat components, wherein the fiber mat component is laid out at least sectionally on the respective directly subjacent component with a moving boundary of a contact area, at which the laid out fiber mat comes into contact with the subjacent component, during laying out of the or each fiber mat component, a binding agent is applied at least sectionally to the boundary and/or a binding agent supplied in the laid-out fiber mat component and/or in the subjacent component is activated at least sectionally at and/or behind the boundary.
A method for lifting a wind turbine rotor blade using a lifting yoke including a main body attached to a rope-like lifting means, wherein the main body is attached to the rotor blade, wherein at least two gyroscopic stabilization units each arranged laterally offset to the lifting means at the main body and/or the rotor blade are used, wherein the gyroscopic stabilization units each include a rotating member with a deflectable rotational axis, wherein the rotating members apply an adjustable stabilizing torque in at least one stabilizing torque direction in dependence of a disturbance movement of the lifting yoke and/or the rotor blade at least temporarily during lifting is provided.
B66C 13/06 - Auxiliary devices for controlling movements of suspended loads, or for preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
B66C 1/10 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means
F03D 13/10 - Assembly of wind motorsArrangements for erecting wind motors
28.
METHOD OF ASSEMBLING AN OFFSHORE ELECTROLYZER ARRAY
A method of assembling an offshore electrolyzer array is provided, the method includes the steps of constructing a support frame to receive a plurality of units of the electrolyzer array; mounting the units onto the support frame to obtain a pre-assembled array; transporting the pre-assembled array to its offshore destination; and lifting the pre-assembled array into place at the offshore destination.
The invention describes a testing apparatus (1) for use in a wind turbine rotor blade manufacturing facility, comprising a pulling means (10) adapted to pull an adherent strip (3T) from a surface of a rotor blade (2); a positioning arrangement (11) configured to maintain a predetermined pull angle (x) between the adherent strip (3T) and the surface of the rotor blade (2) during a test procedure; and a support frame (12) for holding the pulling means (10) and positioning arrangement (11), which support frame comprises a clamping arrangement (14) adapted to clamp about the leading edge (2LE) of the rotor blade (2). The invention further describes a method of performing a test procedure on a wind turbine rotor blade (2) using the inventive testing apparatus (1).
A wind turbine arrangement, that includes an inflatable component disposed within a hollow section of a wind turbine blade. The inflatable component is a platform usable during service and/or installation of a wind turbine module. The inflatable component includes an inflation structure with an air-tight shell. The air-tight shell includes an inner shell and an outer shell surrounding the inner shell. The outer shell includes a material that protects against puncture of the inner shell.
A power grid including a plurality of energy generating devices configured to generate electric energy and a plurality of energy consuming devices configured to consume electric energy from the energy generating devices is provided. At least one of the energy consuming devices is a particular energy consuming device which includes storing device in which a receiving key is stored, the receiving key includes data about a consumer compatibility criterion. The energy generating device is a energy generating device which includes storing device in which a sending key is stored, the sending key includes data about a generator compatibility criterion. The electric grid includes a control device which is configured to make, in real time, the energy generating device to generate and supply electric energy to the energy consuming device, if the consumer compatibility criterion matches the generator compatibility criterion.
A method of positioning a stator segment of a multi-segment stator of an electrical machine is provided, the multi-segment stator comprising a plurality of segments and a shaft, the method including: mounting a stator segment on the shaft at a first segment position, mounting a plurality of actuators between the segment and the shaft for moving the segment from the first segment position, detecting positions of a plurality of first reference objects attached to the stator segment using a camera system; a plurality of second reference objects attached to the shaft using a laser tracking system and a plurality of third reference objects attached to the camera system using the laser tracking system, determining a second segment position of the stator segment and actuating the plurality of actuators for moving the segment from the first segment position to the second segment position.
Transport device for transporting preform elements (24) from a mold (22) to a receiving place, comprising a yoke (2) equipped with a number of gripper elements (5) for gripping the preform element (24), which yoke (2) is attached to a lifting device (6) by means of a first and a second rotation unit (7, 8) of the lifting means (6), which first and second rotation units (7, 8) are coupled to a rotation shaft defining a rotation axis of the yoke (2), wherein the first rotation unit (7) is coupled to a first end of the rotation shaft provided at a first end of the yoke (2) and the second rotation unit (8) is coupled to a second end of the rotation shaft at a second end of the yoke (2), wherein at least one drive motor (16) is provided for rotating the yoke (2) around the rotation axis relative to the first and second rotation unit (7, 8).
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29D 99/00 - Subject matter not provided for in other groups of this subclass
B66C 1/02 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by suction means
B29C 31/08 - Feeding, e.g. into a mould cavity of preforms
B65G 47/91 - Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
An offshore wind turbine is provided, including a foundation carrying a tower, the tower carrying a nacelle, wherein a generator for generating electrical power is housed in the nacelle, and a rotor including wind turbine blades, which is mounted to a rotor hub and coupled to the generator for providing mechanical input power to the generator, wherein the wind turbine further includes at least one desalination plant mounted at an installation position of the wind turbine, the installation position including
an installation support mechanically supporting the desalination plant,
a power interface for providing electrical power from the generator to the desalination plant,
a seawater interface for providing seawater from the installation site of the wind turbine to the desalination plant, and
a freshwater interface for feeding freshwater produced by the desalination plant into a freshwater piping infrastructure for transporting the freshwater to an onshore, freshwater receiving site.
Method for preparing a vacuum sealed layer stack (9) of fiber mats (3, 3a, 3b) on a three-dimensional mold surface (2) with the steps: a) arranging the fiber mats as a stack on the mold surface, b) arranging a friction layer (6, 6a) between two fiber mats in an edge region (7, 7a), the friction layer projecting over the edges of the fiber mats with a projecting part (8, 8a) fixated to the mold (1) or a fixation layer (10a), c) covering the stack with a vacuum foil (10) and sealing the vacuum foil to the mold or the fixation layer except for the area where the projecting part is fixated, d) evacuating the space underneath the vacuum foil until the stack is fixated, e) removing the friction layer and sealing the vacuum foil completely to the mold or the fixation layer, f) drawing a final vacuum underneath the vacuum foil.
There is described a method for operating a wind turbine, a safety system, and a wind turbine comprising a rotor, at least two pitchable rotor blades, a pitching system, an operation controller and a safety controller. The method comprising the steps of: determine a value for at least one safety paremeters with the safety controller, compare the value of the at least one safety parameters with at least one safety threshold and if the value is different from the at least one safety threshold the safety controller delivers a warning signal to the operation controller and prevents the wind turbine (100) from starting up. Further, a safety system comprising a memory and a processor and means for carrying out the method is also disclosed.
Ballast weight (12) for coupling to an attachment means (11), in particular to a hook, attached to the lower end of a rope (10) of a crane (9) wherein the ballast weight (12) is formed by or comprises a main body (17), wherein the main body (17) encompasses a receiving space (18), wherein the receiving space (18) is designed to receive at least a section of the attachment means (11) in an operational state (78) of the ballast weight (12), wherein the receiving space (18) is delimited by an inner surface (21) of the main body (17) and extends along a central axis (19) of the ballast weight (12), wherein the size (74, 75) of the receiving space (18) in at least one direction orthogonal to the central axis (19) is larger at a first position (76) along the central axis (19) than at a second position (77) along the central axis (19) that is arranged above the first position (76), such that the inner surface (21) forms a contact surface (41) arranged at an angle (80) to the central axis (19), that is designed to be supported by a support surface (42) of the attachment means (11), wherein the main body (17) comprises a slit (20) to allow for a movement of the rope (10) into the receiving space (18), wherein the ballast weight (12) comprises a bumper (23) which is fixed to the main body (17) and extends at least partially around the central axis (19) along the circumference of the ballast weight (12).
B66C 23/18 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes specially adapted for use in particular locations or for particular purposes
F03D 80/00 - Details, components or accessories not provided for in groups
B66C 23/20 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes specially adapted for use in particular locations or for particular purposes with supporting couples provided by walls of buildings or like structures
F03D 80/80 - Arrangement of components within nacelles or towers
F03D 13/10 - Assembly of wind motorsArrangements for erecting wind motors
38.
HOLDING DEVICE AND METHOD FOR PLACING AN OBJECT ONTO AN OFFSHORE PLATFORM
A holding device for attaching an object to a lifting device and for placing the object onto a platform of an offshore wind turbine is provided, including a main structure for being attached to a lifting part of the lifting device and a plurality of holding ropes for being attached to attachment spots of the object, wherein the holding ropes are attached to the main structure mutually spaced-apart. The holding ropes of the plurality of holding ropes are attached to the main structure by a plurality of winches, wherein the winches are configured for being operated independently by a control device, wherein the control device is configured to operate the winches in a way to compensate a swinging movement of the lifting device. A method for placing an object onto a platform of an offshore wind turbine is also provided.
B66C 13/06 - Auxiliary devices for controlling movements of suspended loads, or for preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
B66C 1/10 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means
B66C 1/16 - Slings with load-engaging platforms or frameworks
B66C 13/08 - Auxiliary devices for controlling movements of suspended loads, or for preventing cable slack for depositing loads in desired attitudes or positions
B66C 13/46 - Position indicators for suspended loads or for crane elements
A method of controlling a wind turbine is provided including a generator system, an energy storage system and auxiliary equipment, the method including, in particular during a low wind condition: controlling the generator system in order to provide power from the generator system to the auxiliary equipment, in particular such that a rotor speed does not decrease; controlling the energy storage system in order to provide power from the energy storage system to the auxiliary equipment, if required to meet a power requirement of the auxiliary equipment; in particular keeping the wind turbine in operation.
A method of controlling a wind turbine is provided including at least one fan-cooled unit with a fan adapted to circulate air inside a housing of the fan-cooled unit, which method includes operating the fan-cooled unit in a dryout mode by: disabling a thermal energy reduction the fan-cooled unit, which thermal energy reduction means is adapted to reduce thermal energy of air inside the housing during a normal operation mode of the fan-cooled unit; actuating a fan of the fan-cooled unit to circulate the quantity of air contained in the housing; and monitoring a climate parameter until a target climate condition has been reached. A wind turbine configured to execute the steps of the inventive method is also provided.
Lifting yoke for lifting a building element (2) used for building a rotor blade of a wind turbine, wherein the lifting yoke (1) comprises a main body (3) and at least one attachment device (6), wherein the main body (3) is arrangeable hanging on a hoisting means and wherein the attachment device (6) comprises at least one attachment means (7) attachable to a surface (11, 16) of a building element (2) to be lifted, wherein the attachment device (6) is pivotable with and without attached building element (2) at least between a first position and a second position, wherein the attachment means (7) is pointing downwards in the first position for attachment to a top side surface of a building element (2) and upwards in the second position for attachment to a bottom side surface of a building element (2).
B66C 1/02 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by suction means
A wind-powered electrolysis arrangement is provided including a plurality of wind turbines of an offshore wind park; a distributed electrolyzer plant including a plurality of electrolyzers, wherein each electrolyzer is arranged on a wind turbine platform; a balance of plant of the distributed electrolyzer plant, installed on a main platform in the wind park; and a plurality of product pipelines, wherein each product pipeline is arranged to convey a number of products between the balance of plant and a distributed electrolyzer. A method of operating such a wind-powered electrolysis arrangement is also provided.
C25B 9/65 - Means for supplying currentElectrode connectionsElectric inter-cell connections
C25B 1/04 - Hydrogen or oxygen by electrolysis of water
C25B 9/19 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms
C25B 9/70 - Assemblies comprising two or more cells
C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes
F03D 9/00 - Adaptations of wind motors for special useCombinations of wind motors with apparatus driven therebyWind motors specially adapted for installation in particular locations
43.
WIND POWER PLANT AND METHOD FOR OPERATING A WIND POWER PLANT
A wind power plant is provided, including: one or more generator devices for generating electrical power from wind power; a plurality of hydrogen production units for producing hydrogen from the generated electrical power; a plurality of DC-DC converters each being electrically connected with the one or more generator devices and with a respective one of the plurality of hydrogen production units, and each DC-DC converter being configured for supplying power with a tunable output voltage to the respective hydrogen production unit; and a control device for controlling the power supplied by each DC-DC converter to the respective hydrogen production unit based on a current power output of the one or more generator devices. With the proposed wind turbine plant the supply of power to the plurality of hydrogen production units can be improved.
F03D 9/25 - Wind motors characterised by the driven apparatus the apparatus being an electrical generator
H02P 9/10 - Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
H02P 9/30 - Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
H02P 101/15 - Special adaptation of control arrangements for generators for wind-driven turbines
A method of operating a wind turbine is provided. The method includes steps of monitoring the temperature of a component of the wind turbine to obtain a temperature progression for that component; determining the gradient of the temperature progression; and curtailing the power output of the wind turbine on the basis of the temperature progression gradient. The disclosed further describes a wind turbine including a curtailment module configured to curtail the power output of the wind turbine on the basis of a temperature progression gradient.
A method of controlling a multi-phase power converter is provided including at least one PWM inverter module for each phase. The method includes (a) receiving a voltage reference value for each phase, (b) checking, for each pair of phases, whether a difference between the corresponding pair of voltage reference values is below a predetermined threshold value, (c) generating a modified reference value for each phase by modifying the received voltage reference values in such a way that the difference between each pair of modified voltage reference values is equal to or larger than the predetermined threshold value, and (d) generating PWM switching signals for the PWM inverter modules based on the modified voltage reference values. Furthermore, a controller for a multi-phase power converter, a computer program, and a wind turbine generator utilizing such a power converter are provided.
H02M 7/5395 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
F03D 9/25 - Wind motors characterised by the driven apparatus the apparatus being an electrical generator
G05B 15/02 - Systems controlled by a computer electric
A method of operating a wind turbine is provided. The wind turbine is operable in plural different operating modes that differ by at least one of lifetime consumption of the wind turbine and energy production by the wind turbine. A sequence of operating modes is determined for a future period of time, wherein an optimization parameter is estimated based on at least one estimated external parameter. The method further includes obtaining a current value for the at least one external parameter and determining an actual operating mode for the wind turbine for a current point in time, wherein the determining of the actual operating mode comprises estimating an adjusted optimization parameter for plural sequences and for the current value of the at least one external parameter, and selecting the actual operating mode based on the estimated adjusted optimization parameters. The wind turbine is operated in the determined actual operating mode.
A method of charging an energy storage system of a wind turbine is provided. The wind turbine includes a power generation system and a power delivery interface. The method includes obtaining a maximum power limit to which electrical power supplied to the external system via the power delivery interface is limited; monitoring an amount of electrical power provided from the power generation system to the power delivery interface or an amount of power generatable by the power generation system; and determining if a predefined condition is met. If the predefined condition is met, the wind turbine is operated in a charging mode in which electrical power generated in addition to a first amount of electrical power is supplied from the power generation system to the energy storage system to charge the energy storage system. The first amount corresponds to a power rating of the wind turbine.
H02J 7/14 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
F03D 9/11 - Combinations of wind motors with apparatus storing energy storing electrical energy
F03D 9/25 - Wind motors characterised by the driven apparatus the apparatus being an electrical generator
H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
48.
TOOLKIT AND METHOD FOR REPLACING A BLADE BEARING AND METHOD FOR OPERATING A WIND TURBINE
Method for replacing a previously installed blade bearing (1) with a replacement blade bearing (2) in a wind turbine (3), comprising the steps of - orienting a rotatable component (4) of the wind turbine (3) into a service position (5), in which the previously installed blade bearing (1) is arranged at the lower side of the rotatable component (4), - disconnecting a rotor blade (6) from the previously installed blade bearing (1) and lowering the rotor blade (6) to create a free space (7) below the previously installed blade bearing (1), - installing a service platform (8) within the free space (7) by attaching connecting means (9) for the service platform (8) to the rotatable component (4) and/or at least one supporting component (10) of the wind turbine (3) in such a way, that the weight of the service platform (8) is at least partially supported by the rotatable component (4) and/or supporting component (10), - unmounting the previously installed blade bearing (1) from the rotatable component (4) and mounting the replacement blade bearing (2) to the rotatable component (4), wherein the previously installed blade bearing (1) is located on the service platform (8) during and/or after its unmounting and/or wherein the replacement blade bearing (2) is located on the service platform (8) before and/or during its mounting, and - uninstalling the service platform (8) and connecting the rotor blade (6) to the replacement blade bearing (2).
The invention describes a method of manufacturing a wind turbine rotor blade (4), which method comprises at least the steps of providing a rotor blade mould (1) comprising a lower mould (11) and a segmented upper mould (12), the segmented upper mould (12) comprising a root end mould section (120) and a number of airfoil mould sections (121, 122); and arranging a composite material layup (2) in the lower mould (11). The inventive method comprises further steps of arranging the upper mould (12) over the composite layup (11) by: placing the root end mould section (120) at the position of an airfoil mould section (121); moving the root end mould section (120) in a longitudinal direction (Dz) to its intended position at the root end (20) of the composite layup (2); and placing the airfoil mould sections (121, 122) in their positions on the composite layup (2).
B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
B29C 33/22 - Opening, closing or clamping by rectilinear movement
It is described a method of installing magnet modules (9) at a rotor house (4) of a rotor (10) of a permanent magnet synchronous electrical machine (1), the method comprising: determining a radial distance (r1, r2, r3) between a center point (CP) at a rotation axis (2) and a surface measurement location (s1, s2, s3) at an inner surface (5) at an axial end portion (6) of the rotor house (4) at plural circumferential positions (cp1, cp2, cp3); selecting, from plural magnet installation tracks (8_1, 8_2, 8_3) running in an axial direction and being spaced apart in the circumferential direction (cd), an installation track (8_1) having a determined radial distance greater than a threshold, wherein the selected installation track (8_1) is in particular attributive to a greatest radial distance (r1); inserting magnet modules (9) at the selected installation track (8_1), in particular from the axial end portion (6), along the axial direction (2); repeating at least the steps of selecting and inserting with respect to unfilled installation tracks (8_2, 8_3), until plural installation tracks are filled with magnet modules (9).
H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
A lifting rigging is provided including a yoke adapted for connection between a load and a suspension point; and a weight-bearing assembly mounted on the yoke, which weight-bearing assembly includes a spring module including a number of constant torque springs, and a yoke wire with a first end adapted for connection to the suspension point and a second end connected to the spring module and adapted to wind the constant torque springs when the yoke wire is subject to a pulling force, and wherein the weight-bearing assembly is configured such that the yoke wire bears the weight of the yoke when the lifting rigging is suspended from the suspension point.
B66C 1/10 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means
B66C 23/02 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes with non-adjustable and non-inclinable jibs mounted solely for slewing movements
A method of controlling a natural energy production plant connectable/connected to a utility grid and includes plural energy production entities, in particular wind turbines, during insufficient natural energy availability. The method includes: providing first power from an energy storage system to the energy production entities; measuring second power provided to the energy production entities from the utility grid; controlling, in particular by a plant controller and/or respective energy production entity controllers, the energy production entities and/or the energy storage system based on the first power and/or the second power and/or a charge state of the energy storage system.
A louver adapted to be fixated to a nacelle of a wind turbine is provided, including a rectangular frame having a bottom frame part, a top frame part and two side frame parts, and a number of louver blades extending between the side frame parts, characterized in that each louver blade consists of at least two blade parts connected via respective connection interfaces provided at the blade parts, wherein at least one gutter for catching a fluid is provided at one of the blade parts.
A wind turbine drivetrain is provided, including a low-speed shaft; a high-speed assembly including a planetary gearbox and a generator; a coupling assembly including a first annular part connected to the low-speed shaft, a second annular part connected to a first stage of the planetary gearbox, and a cylindrical intermediate part extending between the annular parts, a drivetrain housing arranged to enclose the low-speed shaft and the coupling assembly; having an outer access opening formed in the drivetrain housing; and an inner access opening formed in the intermediate part of the coupling assembly and arranged to align with the outer access opening to facilitate access to the interior of the coupling assembly. Also, further described is a method of performing a maintenance procedure on such a wind turbine drivetrain.
A test rig for testing a blade bearing of a wind turbine blade is provided. The blade bearing includes a first part and a second part that is rotatable about an axial direction with respect to the first part. The test rig includes a bearing support, which is configured to be mounted to the first part of the blade bearing, a shaft element, which is configured to be mounted to the second part of the blade bearing and able to rotate with respect to the bearing support. A test load unit is configured to apply a load in the axial direction to the shaft element. The test load unit includes at least one actuator that is controllable to apply the load.
A method of operating a floating wind turbine (FWT) is provided. The floating wind turbine (100) comprises a nacelle (105) and a rotor (101) mounted to the nacelle (105), wherein the floating wind turbine (100) is exposed to waves during operation, the waves causing a wave induced motion of the floating wind turbine (100). The floating wind turbine (100) is configured to operate a protective function (30). The method comprises obtaining wave information (17) indicative of the waves to which the floating wind turbine (100) is exposed and modifying the operation of the protective function (30) using the obtained wave information (17) to reduce an influence of the wave induced motion of the floating wind turbine (100) on the protective function (30).
A method is provided of controlling an amount of active damping to be applied by an active damping system during operation of a wind turbine, the method including (a) receiving a power reference signal indicative of the power to be produced by the wind turbine, (b) determining a relative power reference change indicative of a change in the power reference signal, (c) determining the amount of active damping to be applied based on the relative power reference change, and (d) outputting the determined amount of active damping to the active damping system. Furthermore, a corresponding device, a wind turbine including such a device, a wind park including such wind turbines, and a computer program product are provided.
An adjustable bolt gripper for gripping bolts of a wind turbine including a frame, a first shovel mechanism to engage with a first bolt, a second shovel mechanism to engage with a second bolt, wherein the first and second shovel mechanisms are both slidably supported at the frame for bringing the bolt gripper from a folded status into an unfolded status and vice versa, and wherein the first and the second shovel mechanisms are positioned further away from each other in the unfolded status than compared to the folded status. Since the bolt gripper can be brought from the folded status into the unfolded status and vice versa, it is possible to adjust the bolt gripper to a specific distance between two axes of symmetry of two bolts that are received in a magazine. Thus, one bolt gripper can be used for different distances between the axes of symmetry.
A hub hydraulic assembly for a wind turbine rotor is provided that includes plural support structures distributed circumferentially about a rotation axis of the hub is provided. In a first angular section of the circumferential distribution, a first support structure is provided and in a second different angular section of the circumferential distribution, a second support structure is provided. The first support structure includes at least a first support cantilever having a mounting end configured to be mounted to the hub and a free end, wherein at least one hydraulic component of the hub hydraulic assembly is mounted to the first support cantilever. The second support structure includes at least a second support cantilever having a mounting end configured to be mounted to the hub and a free end, wherein at least one hydraulic component of the hub hydraulic assembly is mounted to the second support cantilever.
A method for storing at least one pipe of a stationary offshore device is provided, particularly being a wind turbine, by bringing the at least one pipe from a functional state into a storing state, wherein the method comprises the following steps: dismounting the at least one pipe being in the functional state in which it constitutes a component of a conveying arrangement for conveying a fluid through the at least one pipe; and bringing the at least one pipe into the storing state in which it is removably held by at least one suspension device such that the at least one pipe is suspended from a platform of the offshore device.
A Mold arrangement for producing a preform element of a wind turbine blade is provided, including a mold carrier with a receiving section having a three-dimensional receiving surface for receiving a mold element and at least one transferable and flexible plate-like mold element adapted to receive preform building material and arrangeable on the receiving surface, which flexible mold element adapts to the three-dimensional geometry of the receiving surface when positioned on the receiving surface.
A method for detecting at least one property of a component (13, 27, 36) of or for a wind turbine blade (3), comprising: inducing (S1), by applying a primary magnetic field (25), a current (24) in a microwire (15) integrated in the component (13, 27, 36), measuring (S2) a secondary magnetic field (26) generated by the current (24) induced in the microwire (15), and determine (S1), based on the measured secondary magnetic field (26), the at least one property of the component (13, 27, 36). The method provides for efficient contactless structural health monitoring.
The invention relates to a tower segment (1) for a tower of a wind turbine, comprising a tower segment shell (5) for shielding an inner chamber (6) of the tower segment (1) from an environment of the tower and a horizontally arranged first holding structure (9). The first holding structure (9) has a first longitudinal end section (11) and a second longitudinal end section (12), wherein the first longitudinal end section (11) is fixedly attached to a first shell section (13) of the tower segment shell (5), wherein the second longitudinal end section (12) is moveably arranged at a second shell section (14) of the tower segment shell (5). The invention further relates to a method for manufacturing a tower of a wind turbine.
F03D 13/20 - Arrangements for mounting or supporting wind motorsMasts or towers for wind motors
F03D 80/80 - Arrangement of components within nacelles or towers
64.
WIND TURBINE WITH A POWER BEAMING APPARATUS, CENTRAL POWER INSTALLATION FOR A WIND FARM, WIND FARM, METHOD FOR OPERATING A WIND FARM AND METHOD FOR INSTALLING A WIND TURBINE
A wind turbine with a power beaming apparatus is provided, wherein the power beaming apparatus includes at least one receiving antenna for receiving electromagnetic radiation and converting the received electromagnetic radiation into current, and the wind turbine comprises one or more electrical devices electrically connected with the at least one receiving antenna for supplying the current from the receiving antenna to the one or more electrical devices. The one or more electrical devices of the wind turbine can be supplied with electrical power by power beaming even in the case that a generator of the wind turbine does not generate electrical power. In particular, neither an electrical cable connection of the wind turbine nor a large storage unit for storing electrical energy at the wind turbine are necessary.
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
F03D 9/25 - Wind motors characterised by the driven apparatus the apparatus being an electrical generator
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
It is described a method of at least partially installing at least one wind turbine at an offshore site (5), the method comprising: loading at least one lower tower portion (3) of a wind turbine onto a vessel, the lower tower portion (3) spanning less than an entire wind turbine tower; transporting the lower tower portion (3) to the offshore site (5); lifting and guiding the lower tower portion (3) such that a lower end (7) approaches a tower connection portion (7) provided at an offshore foundation; connecting the lower tower portion (3) at the lower end (7) with the tower connection portion (8).
F03D 13/10 - Assembly of wind motorsArrangements for erecting wind motors
F03D 13/40 - Arrangements or methods specially adapted for transporting wind motor components
B63B 35/00 - Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
B66C 23/18 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes specially adapted for use in particular locations or for particular purposes
It is described a method of measuring a geometric characteristic of a stator component (2) of an electrical machine (30), the method comprising: arranging an optical measurement device (5) at a predetermined position (6) relative to the stator component (2), in particular at a first side of the stator component; measuring, by the optical measurement device (5), positions of plural measurement locations (10a, 10b) being in predetermined spatial relations to plural stator component locations (23a, 23b) while keeping the position of the optical measurement device (5) and the stator segment (2) fixed; determining the geometric characteristic based on the measured positions of the plural measurement locations (10a, 10b).
H02K 21/22 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
A method of depositing a leading edge protector onto a leading edge region of a wind turbine rotor blade is provided, which method includes providing a robotic arm adapted to guide a nozzle; providing a supply of fluid polymer material; actuating the robotic arm to guide the nozzle along a pre-defined trajectory within a deposition region while dispensing a predetermined quantity of fluid polymer material within the deposition region, which deposited fluid polymer material subsequently cures to form the leading edge protector. The invention further describes a deposition apparatus adapted to deposit a leading-edge protector onto a leading-edge region of a wind turbine rotor blade.
B05C 5/02 - Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work from an outlet device in contact, or almost in contact, with the work
B25J 11/00 - Manipulators not otherwise provided for
It is described a method of aiding an assembly process of a rotor (30) of an electrical generator (10), in particular permanent magnet electrical generator, in particular of a wind turbine, the method comprising: arranging a rotor house (31) and a rotor bearing (32) at a static relative position; arranging an optical measurement device (140) at a static position relative to the rotor house (31) and the rotor bearing (32); measuring, using the optical measurement device (140), plural first distances (d1a, d1b, . . . ) between the optical measurement device (140) and plural first measurement locations (11a, 11b, . . . ) at the rotor house (31); determining at least one center point (zh) of the rotor house at at least one axial position or an axis (Z) of the rotor house (31) based on the plural first distances (d1a, d1b, . . . ); measuring, using the optical measurement device (140), plural second distances (d2a, d2b, . . . ) between the optical measurement device (140) and plural second measurement locations (12a, 12b, . . . ) at the rotor bearing (32); determining at least one center point (zb) of the rotor bearing (32) at at least one axial position based on the plural second distances (d2a, d2b, . . . ); changing (dv) the relative positioning of the rotor house (31) and the rotor bearing (32) in dependence of the determined center points (zb, zh) or the rotor house axis (Z) and the center point (zb) of the rotor bearing.
H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
H02K 15/90 - Positioning or clamping dynamo-electric machines, e.g. jigs
69.
MATERIAL LAYUP APPARATUS AND METHOD FOR PRODUCING WIND TURBINE BLADES USING FIBER PLIES
Material layup apparatus and method for producing wind turbine blades using fiber plies
Material layup apparatus and method for producing wind turbine blades using fiber plies
A material layup apparatus (100) for producing wind turbine blades using fiber plies (31), comprising a first gantry (1) with a transversal beam (11) extending over a mold receiving space (10). The first gantry (1) comprising at least one gripping unit (4a,4b) attached to the transversal beam (11) and being moveable both in the transversal direction (T) and in a vertical direction (V) so as to be lowerable into and retractable from the mold receiving space (10). Further, the material layup apparatus (100) has a second gantry (2) comprising a transversal beam (21) extending over the mold receiving space (10) providing a storage area (24) for a stack (3) of fiber plies (31). The second gantry (2) is adapted to be moveable in the longitudinal direction (L) into a ply-pickup position in that the storage area (24) of the second gantry (2) is arranged under the at least one gripping unit (4a,4b) of the first gantry (1) so that at least one ply (31) of the fiber plies (31) provided on the stack (3) of fiber plies (31) can be picked up by the at least one gripping unit (4a,4b).
Material layup apparatus and method for producing wind turbine blades using fiber plies
A material layup apparatus (100) for producing wind turbine blades using fiber plies (31), comprising a first gantry (1) with a transversal beam (11) extending over a mold receiving space (10). The first gantry (1) comprising at least one gripping unit (4a,4b) attached to the transversal beam (11) and being moveable both in the transversal direction (T) and in a vertical direction (V) so as to be lowerable into and retractable from the mold receiving space (10). Further, the material layup apparatus (100) has a second gantry (2) comprising a transversal beam (21) extending over the mold receiving space (10) providing a storage area (24) for a stack (3) of fiber plies (31). The second gantry (2) is adapted to be moveable in the longitudinal direction (L) into a ply-pickup position in that the storage area (24) of the second gantry (2) is arranged under the at least one gripping unit (4a,4b) of the first gantry (1) so that at least one ply (31) of the fiber plies (31) provided on the stack (3) of fiber plies (31) can be picked up by the at least one gripping unit (4a,4b).
Thus, a transversal material layup that currently includes many process steps that include manual labor can be automated and by that productivity as well as safety can be increased.
It is disclosed a measurement and sorting arrangement for a plurality of magnets (36) for a rotor (30) of an electrical machine (10), the rotor (30) including a rotor house (31) and a plurality of permanent magnets (36). The arrangement includes:
a measurement station for measuring at least a dimension of a magnet (36) along a direction which is subject to be aligned with a radial direction of the rotor (30),
a storage for storing a plurality of magnets (36) based on the results of the step of measuring (120).
H02K 15/035 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets on the rotor
F03D 13/10 - Assembly of wind motorsArrangements for erecting wind motors
H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
H02K 21/22 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
71.
WIND TURBINE BLADE WITH A BEARING COVER, METHOD FOR MANUFACTURING A WIND TURBINE BLADE AND WIND TURBINE
Wind turbine blade with a bearing cover, method for manufacturing a wind turbine blade and wind turbine The invention relates to a wind turbine blade (1) for a wind turbine (2), comprising a root section (3) for attaching the wind turbine blade (1) to a blade bearing of a wind turbine hub (4) of the wind turbine (2), a tip section (5), an intermediate section (6), interposed between the root section (3) and the tip section (5) and a bearing cover (7), attached to the root section (3) for shielding a gap between the wind turbine hub (4) and the wind turbine blade (1) in an assembled state of the wind turbine blade (1) to the wind turbine hub (4). The bearing cover (7) is fixed to the wind turbine blade (1) by an adhesive layer of a first adhesive. The invention further relates to a method for manufacturing a wind turbine blade (1) and a wind turbine (2).
A wind turbine is provided that se s a nacelle configured to be arranged on a wind turbine tower, a nacelle housing of the nacelle, wherein the nacelle housing is configured to house at least part of an electrical power generation system of the wind turbine, and a hydrogen production system. The hydrogen production system includes an electrolyzer configured to receive electrical power from the electrical power generation system, wherein the electrolyzer is arranged inside the nacelle housing of the nacelle in which at least the part of the electrical power generation system is arranged. One or more other components of the hydrogen production system are arranged at a base of the wind turbine tower and/or within the wind turbine tower.
The invention describes a lightning receptor assembly (1) for a wind turbine rotor blade (20), comprising a receptor unit (10R, 10B) comprising a receptor base (10B) for installation in the rotor blade interior (200) and a receptor (10R) for placement at an outer surface (20S) of the rotor blade (20); a threaded connector (11) to form a mechanical connection between the receptor (10R) and the receptor base (10B); and a conductive band (12) adapted to extend over the outer surface (20S) of the rotor blade (20) and to form an electrical connection to the receptor unit (10R, 10B) without requiring removal of the receptor (10R) from the receptor base (10B). The invention further describes a wind turbine (2) and a method of preforming a maintenance procedure on a lightning receptor assembly (1) of a rotor blade (20) of a wind turbine (2).
The invention describes a method of controlling a wind turbine (2), which method comprises steps of measuring one or more climate parameters (ϕt, Tair, Tsurface) in an interior (2int) of the wind turbine (2); estimating, on the basis of the climate parameters (ϕt, Tair, Tsurface), the electrical resistance (RWt) of an insulating material (210M) deployed in an electrical component (21) of the wind turbine (2); and evaluating the need for a dry-out procedure on the basis of the estimated resistance (RWt). The invention further describes a wind turbine (2) with a monitoring arrangement (1) configured to perform the inventive method.
Wind turbine rotor blade comprising a shell (13), a web structure (14), and a lightning down conductor arrangement (6), wherein the rotor blade (2) extends in a spanwise direction between a tip-side end (10) and a root-side end (9), wherein the web structure (15) is made from at least one fiber-laminate-based structure, wherein the lightning down conductor arrangement (6) comprises at least one web terminal (16) at least partly embedded in the web structure (15) and at least one root-side end terminal (8) arranged in a root-side end portion of the shell (13) in a spanwise distance to the web terminal (16), wherein the root-side end terminal (8) is connected to the web terminal (16) by an end conductor (19) arranged at the inner surface (20) of the shell (13).
An assembly for determining the electrical angle of a rotor in an electrical machine is provided, such as a wind turbine generator. The assembly includes: (a) an encoder having an encoder wheel configured to contact a surface of the rotor to obtain relative rotor rotation information based on rotation of the encoder wheel, (b) an electrical angle observer configured to provide an absolute electrical angle, and (c) a processing device coupled to communicate with the encoder and the electrical angle observer and configured to determine the electrical angle of the rotor based on the relative rotor rotation information and the absolute electrical angle. Furthermore, a wind turbine generator including such an assembly, and a method of determining the electrical angle of a rotor in an electrical machine, such as a wind turbine generator, are provided.
H02P 9/00 - Arrangements for controlling electric generators for the purpose of obtaining a desired output
F03D 9/25 - Wind motors characterised by the driven apparatus the apparatus being an electrical generator
G01D 5/56 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using means specified in two or more of groups , , , , and using electric or magnetic means
G01D 5/58 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using means specified in two or more of groups , , , , and using optical means, i.e. using infrared, visible or ultraviolet light
H02P 21/13 - Observer control, e.g. using Luenberger observers or Kalman filters
A method and a device for pitching blades of a wind turbine is provided. The wind turbine is configured to collectively pitch all blades by a collective pitching degree and to individually pitch each blade by an individual pitching degree. If it is determined that at least one blade is unable to reach its individual pitch reference, the individual pitch reference for this blade is prioritized against the collective pitch reference.
A gantry system for manufacturing a wind turbine blade is provided, the gantry system including a frame for bridging the wind turbine blade in a cross-section direction of the blade during manufacture, wheels rotatably attached to the frame for locomotion of the gantry system, and one or more robotic units attached to the frame for performing manufacturing steps for manufacturing the blade. Having the gantry system bridging the wind turbine blade in a cross-section direction of the blade during manufacture provides a stable vehicle with a large footprint for manufacturing a wind turbine blade.
B23P 15/04 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from several pieces
79.
WIND TURBINE GENERATOR AND WIND TURBINE COMPRISING SUCH A GENERATOR
Wind turbine generator, comprising an inner stator (3) and an outer rotor (1) comprising a cylindrical rotor yoke (4), wherein to an outside surface of the rotor yoke (4) several cooling elements (6) are attached, wherein the cooling elements (7) are cooling fins (7) comprising a plate-like attachment base (8) attached to the outside of the rotor yoke (4) and a fin part (9) extending in an angle from the attachment base (8).
H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
80.
CONTROL SYSTEM PROVIDING DROOP CONTROL AND WIND TURBINE
RefMM1RefMM1M2M2). The first droop control circuit (20) operates at a first operation speed higher than an operation speed of the second droop control circuit (40).
A cable pulling device is provided including two inner plates, two outer plates and one first roller. The two inner plates arranged in the protruding end of the first shaft and two outer plates arranged in the protruding end of the first shaft beside the inner plates. The two inner plates and the two outer plates comprise a pivoting hole, positioning hole and adjusting holes. The inner plates aligned with its corresponding outer plates. Pivoting rods are introduced into pivoting holes to join the inner plates with its corresponding outer plates, consequently able to rotate respect to them.
H02G 1/04 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
H02G 1/08 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
A wind turbine includes a bedframe having a frame connection flange and shaft having a shaft connection flange, which is fixated to the frame connection flange. The frame connection flange includes through bores at an outer first frame radius, threaded blind bores at an intermediate second frame radius, threaded blind bores at an inner third frame radius. The shaft connection flange includes threaded blind bores at an outer first shaft radius that corresponds with the first outer frame radius, second through bores at an intermediate second shaft radius that corresponds with the intermediate second frame radius, and third through bores at an inner third shaft radius that corresponds with the inner third frame radius, wherein a through bore is flush with a threaded bore and a screw connection extends through the through bore and is screwed into the threaded blind bore.
Stator for a wind turbine generator, comprising several phase windings (4) of at least two phases (U, V, W), which phase windings (4) are arranged in several winding segments (5), wherein each segment (5) has at least one output terminal (6, 7, 8) per phase (U, V, W), to which the respective phase windings (4) are connected and which output terminals (6, 7, 8) are connected to a busbar structure (18), characterized in that each output terminal comprises (6, 7, 8) a holder (11) attached to a stator structure (2) and a bar- or box- or plate-like connection terminal (14) connected to the holder (11) by at least one insulator element (13), wherein the connection terminal (14) comprises connection means to which flexible winding connection cables (9) connecting the respective phase winding (4) to the connection terminal (14) are connected, wherein for arranging the connection terminals (14) in different planes the holders (11) have different heights.
A vacuum lifting device is provided including at least one three-dimensional suction cup section defining an inner suction volume and at least one flat surface cover, wherein the surface cover is adapted to cover a portion of a surface of a lifted object in a cover area surrounding the suction cup section, wherein the surface cover extends from an edge of the suction cup section around the suction cup section.
A tower (20) for a wind turbine comprising a plurality of tower sections (21, 22, 23, 24), a spacer (40) and a frame (50) is provided. The spacer (40) configured for allowing access to the tower and the frame (50) for coupling the tower (20) to a foundation. The spacer (40) comprises a first plate (60), a second plate (70), and at least one support element (80) arranged between the first plate (60) and the second plate (70). The first plate (60) and second plate (70) spaced apart to form at least one opening (90) to allow workers to enter the interior of the tower (20).
Mold arrangement for producing composite preform elements for rotor blades of wind turbine built with preform building materials (7) comprising several fiber mats layers and/or sandwich core materials like balsa or polymer foams fixed by a meltable binder, comprising - a mold (2) with a mold surface (4) defining the shape of the preform element, on which mold the preform building material (7) is arranged, - a flexible, electrically conductive, foil-like heating element (5, 5a, 5b, 5c) arranged or to be arranged at the mold (2) for heating the preform building material (7) from below, - a heating blanket (10) or a further flexible, electrically conductive, foil-like heating element to be arranged on the mold for covering the preform building material and for heating it from above.
B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements
B29C 33/02 - Moulds or coresDetails thereof or accessories therefor with incorporated heating or cooling means
87.
METHOD FOR ARRANGING A SHELL SECTION ON A BLADE MOLD FOR MANUFACTURING A BLADE OR A HALF SHELL OF A BLADE OF A WIND TURBINE, AND ASSEMBLY RACK FOR ARRANGING A SHELL SECTION ON A BLADE MOLD FOR MANUFACTURING A BLADE OR A HALF SHELL OF A BLADE OF A WIND TURBINE
Method for arranging a shell section on a blade mold for manufacturing a blade or a half shell of a blade of a wind turbine, and assembly rack for arranging a shell section on a blade mold for manufacturing a blade or a half shell of a blade of a wind turbine Method for arranging a shell section (20, 35, 53), particularly a half shell section, on a blade mold (22) for manufacturing a blade or a half shell of a blade of a wind turbine, wherein the method comprises the steps: - providing several preform elements (21, 36, 51), each comprising a stack of layers of fiber mats fixated to each other, - arranging the preform elements (21, 36, 51) on supporting elements (8) of a frame (2, 50) of an assembly rack (1) and adhering the preform elements (21, 36, 51) with each other to constitute the shell section (20, 35, 53), - gripping the shell section (20, 35, 53) to the frame (2, 50) by gripper elements (17) of the assembly rack (1), - turning the frame (2, 50) and the shell section (20, 35, 53) upside down by at least one swivel joint (26) which rotatably connects the frame (2, 50) with a stand (3) of the assembly rack (1), - lifting the shell section (20, 35, 53) and placing it on the blade mold (22), wherein the frame (2, 50) being disconnected from the stand (3) is used as a lifting yoke.
B29C 65/00 - Joining of preformed partsApparatus therefor
B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core
Method for manufacturing a shell section (17, 28, 53), particularly a half shell section, having a desired section geometry, wherein the shell section (17, 28, 53) is adapted to constitute a section of a wind turbine blade to be produced, wherein the method comprises the steps: - providing several preform elements (18, 29, 51), each comprising a stack of layers of fiber mats fixated to each other, - providing an assembly rack (1, 27, 50) with several supporting elements (7) which are arranged in a geometry which corresponds to the section geometry, - arranging the preform elements (18, 29, 51) on the supporting elements (7) side-by-side such that the preform elements (18, 29, 51) are relatively positioned to each other in a geometry which corresponds to the section geometry, and - adhering adjacent preform elements (18, 29, 51) with each other to constitute the shell section (17, 28, 53).
B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core
The present invention relates to a method for manufacturing a wind turbine blade, comprising the steps a) Manufacturing a raw wind turbine blade (1), wherein the raw wind turbine blade (1) comprises at least one groove (2) running at least with a directional component along a spanwise direction (S); b) Providing a filler material application apparatus (4) - comprising a filler application head (41) with at least one dispenser nozzle (416) adapted to dispense a hardenable filler material (3), - and comprising at least one filler material source (49) comprising the hardenable filler material in a flowable state, - wherein the filler application head (41) is moveable at least along the spanwise direction (S); c) Positioning the filler application head (41) of the filler material application apparatus (4) over a section of the groove (2); d) Effecting a flow of hardenable filler material (3) from the filler material source (49) to the at least one dispenser nozzle (416); e) Moving the filler application head (41) in the spanwise direction (S) along an extension of groove (2), thereby filling the groove (2) with the hardenable filler material (3) that is subsequently hardened so that at least one filled groove (21) is provided. The method according to the invention allows for an automation of currently manually executed filler material application steps and thus both increases production speed and lowers costs for wind turbine blades.
B29C 70/60 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only comprising a combination of distinct filler types incorporated in matrix material, forming one or more layers, and with or without non-filled layers
B05D 1/26 - Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
B05D 1/42 - Distributing applied liquids or other fluent materials by members moving relatively to surface by non-rotary members
B29C 73/02 - Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass using liquid or paste-like material
B29C 73/16 - Auto-repairing or self-sealing arrangements or agents
B29D 99/00 - Subject matter not provided for in other groups of this subclass
The invention describes a layup arrangement (1) for use in a method of moulding a wind turbine rotor blade (2), comprising a number of hanging preforms (10), each comprising a shaped body (10B) formed from a plurality of reinforcement fibre sheets (10L) bonded by a previously activated binder (B), and a hang-off portion (10H) for hanging the shaped body (10B) from the upper edge of a mould (M2); and a number of holding means (11) provided at a tooling surface (4), each holding means (11) arranged to engage with a hang-off portion (10H) of a hanging preform (10). The invention further describes a method of manufacturing a wind turbine rotor blade (2) using such a layup arrangement (1).
B29C 31/00 - Handling, e.g. feeding of the material to be shaped
B29C 31/08 - Feeding, e.g. into a mould cavity of preforms
B29C 65/78 - Means for handling the parts to be joined, e.g. for making containers or hollow articles
B29C 65/00 - Joining of preformed partsApparatus therefor
B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core
B29C 70/38 - Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29D 99/00 - Subject matter not provided for in other groups of this subclass
A resin composition suitable for use in the production of a wind turbine blade or a part of any of the foregoing by means of a vacuum infusion method is described. The resin composition comprises an epoxy component, an amine component further comprising at least one imine functional group, and a polyfunctional (meth)acrylate component. Moreover, a method of producing a wind turbine blade a nacelle or a part of any of the foregoing and a respectively produced wind turbine blade, a nacelle or a part of any of the foregoing are described.
C08G 59/40 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the curing agents used
C08G 59/42 - Polycarboxylic acidsAnhydrides, halides, or low-molecular-weight esters thereof
C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
The present invention relates to a wind turbine (1) with a wind turbine blade strain control, comprising a tower (2), a nacelle (3), a rotor (4), a hub (5), a plurality of wind turbine blades (6), a generator (7) and a controller (8). The wind turbine blades (6) comprise a root section (9), engaging the hub (5), a tip end section (10) and an intermediate section (11) between the root section (9) and the tip end section (10). The wind turbine blades (6) comprise a sparcap (12), extending between the root section (9) and the tip end section (10). The wind turbine blade (6) comprises a first electrical path (13) from the root section (9) of the wind turbine blade (6) to the tip section (10) of the wind turbine blade (6), a second electrical path (14) from the tip section (10) to the root section (9) and an electrical time-domain reflectometry device (15) for performing electrical time-domain reflectometry measurements within the first electrical path (13) and the second electrical path (14). The invention also relates to a method for determining a strain of a wind turbine blade (6).
A method for manufacturing a wind turbine blade, comprising the steps a) Manufacturing a raw wind turbine blade (1) by lamination of one or multiple layers of fiber material, wherein the raw wind turbine blade (1) comprises at least one groove (2) running at least with a directional component along a spanwise direction (S); b) Filling the at least one groove (2) with a hardenable filler material (3) so that a filled groove (21) is provided; c) Providing a grinding apparatus (4) - comprising a tool head (41) with at least one grinding means (411, 415), - wherein the tool head (41) is moveable at least along the spanwise direction (S), - and wherein a shape of the tool head (41) is adaptable at least with respect to a plane running perpendicular to the spanwise direction (S); d) Placing the grinding means (411,415) of the tool head (41) on a section of the filled groove (21); e) Adapting the shape of the tool head (41) so that it corresponds with a shape of a cross-section of an airfoil geometry of the wind turbine blade at a given spanwise position; f) Moving the tool head (41) in the spanwise direction (S), thereby continuously grinding of filler material (3) with the grinding means (411,415). The method allows for an automation of currently manually executed grinding steps and thus both increases production speed and lowers costs for wind turbine blades.
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B05D 1/26 - Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
B24B 19/14 - Single purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
B29C 73/02 - Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass using liquid or paste-like material
B29C 73/16 - Auto-repairing or self-sealing arrangements or agents
B29D 99/00 - Subject matter not provided for in other groups of this subclass
A method for removing a foil (17) or tape (46) from an inner surface (14) of a mold (7) for casting a wind turbine blade (3) or a part thereof, the foil (17) or tape (46) comprising a non-stick material (18) on the inside which is configured not to react with resin during casting (S1, S2, S3), and an adhesive material (19) on the outside to stick to the inner surface (14) of the mold (7), the method comprising: a) locally heating (S5) the foil (17) or tape (46) to soften the adhesive material (19); and b) exerting (S6) a pulling force on the foil (17) or tape (46) to remove the foil (17) or tape (46) from the inner surface (14) of the mold (7). By way of locally heating the foil or tape, it is no more required to rely on the remaining heat of the mold after removal of the cast wind turbine blade. This has ergonomic advantages and makes the process more flexible.
Lifting yoke, adapted for transporting convex or concave preform elements (12) comprising a layer stack of fiber mats fixated by means of a binding agent and adapted for the production of a wind turbine rotor blade, comprising a number of gripper elements (6) adapted to grip the preform element (12) and arranged in a convex or concave geometry at a suspension device (5) of the yoke (1), and a supporting device (2) connected to the suspension device (5), which supporting device (2) comprises a connection device (3) adapted to connect the yoke (1) to a lifting means (4) and a rotation device adapted to rotate a part (14) of the supporting device (2) carrying the suspension device (5) relative to the connection device (3) around a horizontal axis (A).
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B65G 47/91 - Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
B25J 15/06 - Gripping heads with vacuum or magnetic holding means
B29C 31/08 - Feeding, e.g. into a mould cavity of preforms
B29D 99/00 - Subject matter not provided for in other groups of this subclass
B66C 1/02 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by suction means
A wind turbine blade is provided, including two planks joined with each other in a longitudinal direction of the planks at joining surfaces by a butt joint, wherein each plank includes a main portion with a wedge-shaped recess and a wedge-shaped portion filling the recess, each wedge-shaped portion has a respective one of the joining surfaces and is tapered from its joining surface in a direction away from its joining surface, and a stiffness of a material of the wedge-shaped portions is smaller than a stiffness of a material of the main portions. By having the wedge-shaped portions, the load is transferred to the surrounding material over a larger area which reduces the stress concentration.
A wind energy plant is provided including a plurality of wind turbines and committed to provide a specified quantity of active power over a specified duration in response to a grid under-frequency event, characterized by a plurality of power storage devices, wherein the rated storage capacity of the plurality of power storage devices corresponds to the specified quantity of active power; and wherein the wind energy plant is configured to deliver an active power deficit (ΔP10S) when the stored power available in the power storage devices is less than the rated storage capacity at the time of occurrence of a grid under-frequency event.
It is described a method of joining a first blade module (1) and a second blade module (2) of a blade (3) for a wind turbine to each other, the method comprising steps of: Applying a hot melt adhesive layer (4) to an inner or outer shell surface (5) of the first blade module (1) and/or an inner or outer shell surface (6) of the second blade module (2); Aligning the first and second blade modules (1, 2) to each other with a joining insert (7) arranged at a joining interface of the first and second blade modules (1, 2) so that the joining insert (7) is in contact with the hot melt adhesive layer (4); Heating the hot melt adhesive layer (4); and Joining the first and second blade modules (1, 2) via the joining insert (4) to each other by vacuum infusion, wherein the joining insert (4) is materially bonded to the first and second blade modules (1, 2).
B29C 65/18 - Joining of preformed partsApparatus therefor by heating, with or without pressure using heated tool
B29C 65/48 - Joining of preformed partsApparatus therefor using adhesives
B29C 65/50 - Joining of preformed partsApparatus therefor using adhesives using adhesive tape
B29C 65/54 - Applying the adhesive between pre-assembled parts
B29C 65/00 - Joining of preformed partsApparatus therefor
C09J 163/00 - Adhesives based on epoxy resinsAdhesives based on derivatives of epoxy resins
C09J 171/00 - Adhesives based on polyethers obtained by reactions forming an ether link in the main chainAdhesives based on derivatives of such polymers
B29C 73/04 - Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass using preformed elements
B29C 65/10 - Joining of preformed partsApparatus therefor by heating, with or without pressure using hot gases
B29C 65/14 - Joining of preformed partsApparatus therefor by heating, with or without pressure using wave energy or particle radiation
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
99.
METHOD FOR MANUFACTURING A PREFORM ELEMENT, METHOD FOR MANUFACTURING A WIND TURBINE ROTOR BLADE, AND MOLD ARRANGEMENT
Method for manufacturing a preform element used in particular for manufacturing a rotor blade of a wind turbine, wherein the preform element includes one or more components provided with at least one adhesive agent, wherein the components are arranged on a molding surface of a mold, wherein at least one bladder is arranged on top of the components and/or underneath the mold and wherein at least one fluid is supplied to the bladder for heating or cooling of the adhesive agent.
B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements
B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
C09J 5/06 - Adhesive processes in generalAdhesive processes not provided for elsewhere, e.g. relating to primers involving heating of the applied adhesive
A method for manufacturing a wind turbine blade (3) comprising a load-carrying beam (18, 19) extending in a longitudinal direction (A) of the blade (3) and having a predetermined total length (L1), comprising:
a) aligning (S2) at least two blade sections (8, 9) with each other, each blade section (8, 9) comprising a shell (11, 12) with an outer recess (34, 44) and the outer recesses (34, 44) forming in the aligned state an overall outer recess (45) having the predetermined total length (L1), and
b) arranging (S3) a fiber lay-up (49) in the overall outer recess (45) for forming the load-carrying beam (18, 19).
A method for manufacturing a wind turbine blade (3) comprising a load-carrying beam (18, 19) extending in a longitudinal direction (A) of the blade (3) and having a predetermined total length (L1), comprising:
a) aligning (S2) at least two blade sections (8, 9) with each other, each blade section (8, 9) comprising a shell (11, 12) with an outer recess (34, 44) and the outer recesses (34, 44) forming in the aligned state an overall outer recess (45) having the predetermined total length (L1), and
b) arranging (S3) a fiber lay-up (49) in the overall outer recess (45) for forming the load-carrying beam (18, 19).
Thus, the load-carrying beam can be manufactured as a continuous structural element without piecing it together. Hence, discontinuities in the material of the load-carrying beam can be avoided. Therefore, a higher structural integrity of the blade is achieved.
B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
