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
6.
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
11.
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
27.
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
32.
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
34.
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
42.
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
43.
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
Wind turbine, comprising a bedframe (2) having a cylindrical frame connection flange (11) and shaft (3) having a cylindrical shaft connection flange (16), wherein the shaft connection flange (16) is fixated to the frame connection flange (11) by screw connections arranged in axially extending bores provided in the frame connection flange (11) and the shaft connection flange (15), wherein
the frame connection flange (11) is provided with a first row (Ia) of first through bores arranged at an outer first frame radius and the shaft connection flange (16) is provided with a first row (Ib) of first threaded blind bores (21) arranged at an outer first shaft radius which corresponds to the first outer frame radius,
the frame connection flange (11) is provided with a second row (IIa) of second threaded blind bores (26) arranged at an intermediate second frame radius and the shaft connection flange (16) is provided with a second row (IIb) of second through bores (27) arranged at an intermediate second shaft radius which corresponds to the intermediate second frame radius,
the frame connection flange (11) is provided with a third row (IIIa) of third threaded blind bores (31) arranged at an inner third frame radius and the shaft connection flange (16) is provided with a third row (IIIb) of third through bores (32) arranged at an inner third shaft radius which corresponds to the inner third frame radius,
wherein a through bore is flush with a threaded bore and a screw connection (22, 28, 33) 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
50.
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
62.
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
An auxiliary power supply arrangement of a wind turbine is provided, including a standby power supply configured to cover the average power requirements of auxiliary devices of the wind turbine; and an energy storage unit, which energy storage unit is configured to cover transient power requirements of the auxiliary devices and/or to supplement the standby power supply in covering the transient power requirements of the auxiliary devices. Also provided is a wind turbine including such an auxiliary power supply arrangement adapted to supply power to auxiliary devices of the wind turbine during an off-grid state of the wind turbine; and a method of operating such a wind turbine.
The present invention relates to a system comprising a wind turbine (1) powering an operational part (8) producing excess heat when operating, wherein the system further includes a heat transferring system comprising a heat storage (20, 2, 22) in heat exchange connection to the operational part (8), and adapted to store at least a part of the excess heat produced by the operational part (8) as thermal energy in a cooling state of the heat transferring system, and to direct the thermal energy to the heat transferring system to heat the operational part (8) in a heating state when the operational part (8) is in standby. The present invention further relates to the method to control the temperature of the operational parts (8) in standby.
A method of mounting a wind turbine rotor blade to a partial assembly is provided, the partial assembly including a number of rotor blades mounted to a hub which in turn is connected to a rotor shaft of a wind turbine, the method including the steps of A) effecting a rotation of the rotor shaft to turn the partial assembly from its starting position through an initial arc (β0); B1) allowing the partial assembly to swing through a free swing arc in the opposite direction; B2) effecting a rotation of the rotor shaft to extend the free swing arc (α) by a further arc (β); and C) repeating steps B1 and B2 until the partial assembly has reached a final position at an angular displacement of 120° to the initial position.
A method of calibrating a yaw actuator of a wind turbine is provided, including steps of performing an active yaw operation in a clockwise yaw direction and an active yaw operation in a counter-clockwise yaw direction; recording data of a wind direction and a power caused by both yaw operations, and averaging the data and calculating an error between an experimental power difference and a theoretical power difference of yaw operations in the clockwise direction and a counter-clockwise direction; determining a minimum of the error; and determining a yaw misalignment based on the minimum error.
A method for manufacturing a wind turbine blade is provided, including the steps of: a) arranging a fiber lay-up on a mandrel tool, the mandrel tool including a frame and, as seen in cross-section, at least two mandrel portions connected to the frame, and wherein at least a portion of the fiber lay-up is supported by an outer surface of the at least two mandrel portions, b) reducing a cross-section size of the mandrel tool by retracting at least one of the mandrel portions towards the frame, c) arranging the mandrel tool inside adjacent blade sections, d) increasing the cross-section size of the mandrel tool by extending at least one of the mandrel portions away from the frame, and e) infusing at least a portion of the fiber lay-up with a resin and curing the resin to obtain a cured joining portion joining the blade sections inside.
B29D 99/00 - Subject matter not provided for in other groups of this subclass
B29C 33/48 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
B29C 70/32 - 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 on a rotating mould, former or core
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
It is described a method of damping a rolling movement of a ship (1). The method comprises loading a load (2) onto the ship (1); and mounting at least one tank (3) to the ship (1), the tank (3) is partly filled by a fluid (5) so that a natural frequency of a rolling motion of the loaded ship (1) including the mounted tank (3) is adjusted to a predetermined rolling frequency.
B63B 39/00 - Equipment to decrease pitch, roll, or like unwanted vessel movementsApparatus for indicating vessel attitude
B63B 39/03 - Equipment to decrease pitch, roll, or like unwanted vessel movementsApparatus for indicating vessel attitude to decrease vessel movements by displacement of masses by transferring liquids
70.
METHOD FOR OPERATING A POWER-TO-GAS CONVERTER WITH A WIND TURBINE, POWER-TO-GAS CONVERTER AND WIND TURBINE
A method for operating a power-to-gas converter with a wind turbine is provided, the power-to-gas converter being electrically connected to the wind turbine, wherein the power-to-gas converter generates at least one gas-mixture, wherein a measuring unit of the power-to-gas converter measures a concentration of at least one gas in the gas-mixture, wherein a control unit of the power-to-gas converter controls the generation of the at least one gas-mixture by the power-to-gas converter, wherein a first threshold value of the concentration of the at least one gas in the gas-mixture is set within the control unit, wherein the generation of the at least one gas-mixture is stopped by the control unit when the measured concentration of the at least one gas in the gas-mixture reaches or exceeds the first threshold value. Furthermore, a power-to-gas converter and a wind turbine is also provided.
A method of calibrating a yaw system of a wind turbine is provided, the method including steps of performing a yaw event at a yaw event time in a clockwise direction and a counter-clockwise direction, calculating absolute errors which are the differences between an experimental performance parameter difference and a theoretical performance parameter difference of the yaw events in the clockwise direction and a counter-clockwise direction; adding up the absolute errors to obtain a total error; determining a minimum of the total error; and determining a yaw misalignment based on the minimum error.
Provided is a method of manufacturing an adaptable pre-cast resin-infused carbon-fiber beam, which method includes the steps of arranging a plurality of elongate carbon-fiber blocks side by side; arranging sheets to enclose the blocks and to extend over opposing faces of adjacent blocks; arranging the sheets to converge as an outwardly projecting elongate bead at a junction between adjacent blocks; and pulling on the elongate bead to inhibit resin flow between blocks during a resin infusion step. Also provided is a pre-cast adaptable carbon-fiber beam manufactured using that method; a method of manufacturing a wind turbine rotor blade; and a wind turbine rotor blade.
B29C 70/68 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers
B29C 70/84 - Moulding material on preformed parts to be joined
A main bearing unit of a wind turbine drivetrain is provided, including a number of bearings arranged about a low-speed shaft of the drivetrain; a housing arranged to enclose the bearings; a preload ring arranged between an inner surface of the housing and the outer race of a bearing, which preload ring is adapted to facilitate its axial displacement during a bearing preload reinstatement procedure; and a fastener for fixing the position of the preload ring to the housing following a bearing preload reinstatement procedure. Also provided is a bearing preloading arrangement for use in reinstating preload in a bearing of such a main bearing unit; and a method of reinstating a preload force in a bearing of such a main bearing unit.
The present invention relates to a method for manufacturing a wind turbine blade (1), comprising the steps: a) Premanufacturing an inboard blade section (15) by lamination of one or multiple layers of fiber material, wherein the premanufactured inboard blade section (15) comprises a main joining region (11) at an outboard end (151), b) Providing an openable mold (3) having the shape of a negative impression of an outboard blade section (16) of the wind turbine blade (1), c) Inserting the premanufactured inboard blade section (15) at least with the main joining region (11) into the openable mold (3); d) Extending the premanufactured inboard blade section (15) with an outboard blade section (16) by lamination of one or multiple layers of fiber material (45,46,85,86) in the openable mold (3), thereby connecting the main joining region (11) of the premanufactured inboard blade section (15) to the outboard blade section (16). The method involves less steps than current manufacturing methods and can, even with further increasing blade lengths, be executed within existing production facilities.
The invention describes a wind turbine drivetrain (1) comprising a planetary gearbox (12) for converting rotation of a low-speed shaft (10) to rotation of a high-speed gearbox output shaft (122); a generator (14) mounted about an annular sleeve (124) extending axially outward from a gearbox housing (12H) and enclosing the gearbox output shaft (122); a bearing assembly (16) arranged between the generator (14) and the gearbox (12), comprising a rotary bearing part (16R) and a stationary bearing part (16S); and a torsional vibration damper (13) arranged between two rotary components (122, 122A, 122B, 14R, 16R) of the drivetrain (1), which torsional vibration damper (13) comprises a number of damping elements (13E). The wind turbine drivetrain is characterized in that the torsional vibration damper (13) is dimensioned to facilitate access from within the generator (14). The invention further describes a method of performing a maintenance procedure on such a wind turbine drivetrain (1).
The present invention relates to a method for manufacturing a wind turbine blade (1), comprising the steps: a) Premanufacturing an outboard blade section (15) by lamination of one or multiple layers of fiber material, wherein the premanufactured outboard blade section (15) comprises a main joining region (11) at an inboard end (151), b) Providing an openable mold (3) having the shape of a negative impression of an inboard blade section (16) of the wind turbine blade (1), c) Inserting the premanufactured outboard blade section (15) at least with the main joining region (11) into the openable mold (3); d) Extending the premanufactured outboard blade section (15) with an inboard blade section (16) by lamination of one or multiple layers of fiber material (45, 46, 85, 86) in the openable mold (3), thereby connecting the main joining region (11) of the premanufactured outboard blade section (15) to the inboard blade section (16). The method involves less steps than current manufacturing methods and can, even with further increasing blade lengths, be executed within existing production facilities.
It is described a method of assembling a substantially cylinder symmetrical rotor house (101) and a substantially circular strengthening ring (102) of an electrical permanent magnet generator, in particular of a wind turbine, the method comprising: using an assembling equipment (103) comprising a holder ring (104) and plural, in particular at least four, contact rods (105a,b,c,d) having contact surfaces (106a,b,c,d) at a respective longitudinal end being adjustable regarding their positions; contacting plural rotor house locations (107a,b,c,d) of an outer surface (108) of the rotor house (101) by the contact surfaces (106a,b,c,d); exerting a force (F) via at least one contact surface (106a,b,c,d) to the rotor house location (107a,b,c,d), in order to adjust an actual shape of the rotor house (101) in order to achieve a target shape of the rotor house (101); mounting the strengthening ring (102) to the rotor house (101) at a first axial end.
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
78.
BLADE FOR A WIND TURBINE, WIND TURBINE AND METHOD FOR MANUFACTURING
A blade (3) for a wind turbine (1), comprising: an inboard section (7); an outboard section (8); and joints (9) connecting the inboard section (7) and the outboard section (8) to each other, each joint (9) including: a first insert (16) attached to the inboard section (7); a second insert (17) attached to the outboard section (8), the first and second insert (16, 17) defining together a convex shape away from the blade (3) when seen in a cross-section along the lengthwise direction (11) of the blade (3); and a threaded connection means (24) connecting the first and second insert (16, 17) to each other, the threaded connection means (24) being configured to be tightened from outside of the blade (3). Advantageously, the connection thus formed is well suited to counteract blade loads and easy to access which simplifies assembly/disassembly and allows visual inspection of the screws.
The invention describes a handling apparatus (1) for use in a maintenance procedure of a wind turbine drivetrain (2) comprising a low-speed unit (22) and a high-speed unit (24) coaxially coupled to the low-speed unit (22), which handling apparatus (1) is configured to be arranged in the interior of a wind turbine nacelle (6) and comprises a front-end anchor (10) configured for mounting onto the low-speed unit (22) of such a drivetrain (2); a suspension assembly (100) extending from the front-end anchor (10) towards the rear of the nacelle (6); a primary carriage (14) carried by the suspension assembly (100) and configured for attachment to the high-speed unit (24) of the drivetrain (2); and a displacement means (16, 160) realized to displace the primary carriage (14) along the suspension assembly (10) relative to the front-end anchor (10). The invention further describes a method of performing a maintenance procedure on a wind turbine drivetrain (2) using such a handling apparatus (1).
The invention describes a handling apparatus (1) for use in a maintenance procedure of a wind turbine drivetrain (2, 4, 6) comprising a planetary gearbox (4) and a generator (6) coaxially mounted to the gearbox (4), which handling apparatus (1) comprises a suspension rail (10) dimensioned to extend from the interior of the generator rotor (64) outward to the exterior of the generator (6); a mounting means (100, 10F, 10B) for mounting the rail (10) to a stationary drivetrain part (42, 62, 64); at least one carriage (12) arranged to move along the underside of the suspension rail (10); and at least one lifting fitting (14, 140, 142) adapted for attachment to a drivetrain component (66, 68, 8, 44) and comprising a means of suspending that lifting fitting (14, 140, 142) from a carriage (12). The invention further describes a method of performing a maintenance procedure on a wind turbine drivetrain (2, 4, 6) using such a handling apparatus (1).
The invention describes a wind turbine drivetrain comprising a planetary gearbox (4) for converting rotation of a low-speed shaft (2) to rotation of a high-speed gearbox output shaft (44); an axial sleeve (42S) extending axially outward from the gearbox (4) and enclosing the gearbox output shaft (44); a generator (6) mounted coaxially to the gearbox (4), comprising a rotor (64) arranged about the cylindrical sleeve (42S); a bearing cartridge (8) arranged between the gearbox (4) and the generator (6), which bearing cartridge (8) comprises a number of roller bearings (80) held between a stationary bearing part (8S) and a rotary bearing part (8R); and a torque transfer assembly (1) for transferring rotation of the gearbox output shaft (44) to the generator rotor (64), which torque transfer assembly (1) incorporates the rotary bearing part (8R) and is arranged to extend between the non-drive end of the gearbox output shaft (44) and the generator rotor (64). The invention further describes a method of assembling such a wind turbine drivetrain.
It is described a rigging device (1) for lifting a load (2) by a crane, the rigging device comprising a beam (3) and a first pulley (4) mounted to the beam (3) at a first end in a longitudinal axis of the beam (3), the first pulley (4) is configured to receive a first sling (5), wherein the first sling (5) is configured to be connected to a carrier device (20) of a crane or to the load (2). The first pulley (4) is mounted to be eccentrically rotatable with respect to the beam (3), and the first pulley (4) is connected to a first actuator (6) which is configured to rotate the first pulley (4).
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 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
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
83.
METHOD OF PRODUCING A WIND TURBINE BLADE, A RESPECTIVELY PRODUCED WIND TURBINE BLADE AND A POROUS MATERIAL SUITABLE FOR USE IN THE PRODUCTION
A porous material provided with a reactive component capable of reacting with an infusion resin is provided. In addition, a method of producing a wind turbine blade or a part thereof is described, the method including providing a mold containing the porous material, applying an infusion resin into the mold by a vacuum infusion method, in particular vacuum assisted resin transfer molding, and curing the infusion resin. A wind turbine blade or a part thereof obtainable by this method is also provided.
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29C 33/38 - Moulds or coresDetails thereof or accessories therefor characterised by the material or the manufacturing process
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
B29K 63/00 - Use of epoxy resins as moulding material
B29K 105/00 - Condition, form or state of moulded material
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
84.
REVENUE BASED OPTIMIZATION OF WIND FARM SPATIAL LAYOUT
The present invention relates to a method to define a spatial arrangement of wind turbines (10) in a wind farm at least including a revenue parameter based on a value function being a forecast of the relationship between electricity prices and wind speeds, the method including - a step (1000) to define one or multiple site data positions (200) at the wind farm, - a step (1030), for each site data position (200), use a forecast model to determine the value function relating wind speed to an electricity value; and - a step (1100) to optimize the layout by adjusting the wind turbine positions and recalculating the overall revenue in order to obtain the wind turbine positions that collectively result in a maximum revenue generation for the wind farm. The present invention further relates to the wind farm arranged accordingly.
G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
G06Q 10/063 - Operations research, analysis or management
It is described a method of detecting a fault regarding de- termination of rotor angle position of a permanent magnet synchronous machine (111) having at least one multi-phase stator winding set, during low rotational speed operation, the method comprising: checking consistency (1) of at least two independent rotor angle position determination methods thereby using at least an encoder based method and a high frequency injection based method; indicating a fault (13, 14) if at least one consistency check fails.
A wind turbine service system configured to perform at least one service task in a wind turbine (200) is provided. The wind turbine (200) comprises at least two floors (211, 212) at different vertical positions. The wind turbine service system (10) comprises a service robot (100) that is self-propelled and that is controllable to perform the at least one service task and a vertical movement aid (250) extending between at least two of the floors (211, 212). The wind turbine service system (10) is configured to have a first mode of locomotion in which the service robot (100) is moved self-propelled and without mechanical guidance on at least one of the floors (211, 212), and wherein the wind turbine service system (10) is further configured to have a second mode of locomotion in which the service robot (100) interacts with the vertical movement aid (250) to move the service robot between the at least two floors (211, 212).
Manufacturing a wind turbine generator It is described a method of assembling a generator (1) for a wind turbine (50), the method comprising: determining (RBMS) plural first inner radii (r1) of an assembly comprising a ro- tor house (6) and a bearing (5); measuring (IMIC) heights (h) of plural magnet modules (9); determining positions of the plural magnet modules (9) at the rotor house (6); calculating second inner radii (r2) of the rotor house-bearing assembly and determining a minimum second inner radius; measuring ge- ometry information (FSMS) of a first mounting surface (3) and/or a second mounting surface (4) of a stator base struc- ture (2); mounting (FSAC) plural stator segments (8) at the stator base structure (2), in order to obtain a stator assem- bly; coupling the rotor house-bearing assembly (5, 6) with the stator assembly (2, 8, 7); mounting (MMIC) the magnet modules (9) at the rotor house (6).
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
It is described a Hall sensor system (120) for an electrical machine (100) having a radially inner stator (102) with stator windings (111) and a radially outer rotor (103) with permanent magnets (114), in particular of a wind turbine (1556), comprising: a body (121) including an insertion portion (122) extending in a longitudinal direction (107) and having an end surface (125) at a longitudinal end (124), wherein the insertion portion (122) is configured to be reversibly installable within a cooling opening (109a) of the stator (102); a Hall sensor (123) provided substantially at the longitudinal end (124) of the insertion portion (122), wherein the longitudinal direction corresponds to a radial direction (107), when the insertion portion (122) is installed within the cooling duct (109a).
A damping device configured to be mountable on an upper opening of a tower and configured to provide vibration damping during vertical storage and/or vertical transport of the tower is provided. The damping device includes a liquid damper comprising a single liquid tank, a mounting interface configured to mount the liquid damper on the upper opening of the tower. The mounting interface includes one or more load transfer elements configured to transfer vibrations between the tower and the liquid damper. The liquid damper is configured to provide the vibration damping at predetermined frequencies tunable by one or more damping parameters of the liquid damper. The one or more damping parameters are configured such that the liquid damper damps vibrations at least at a first frequency and at a second frequency, the second frequency being different from the first frequency.
Lifting apparatus for lifting a wind turbine component A lifting apparatus (10, 11) for lifting a wind turbine component (94, 96, 98, 100) is provided that comprises: a support frame (12) comprising a support (14) to hold the wind turbine component (94, 96, 98, 100); one or more lifting points (16) on the support frame (12) configured to be coupled to a lifting wire (76) of a crane (70); and a stabilizing arrangement (18). The stabilizing arrangement (18) comprises: a first coupling point (20) configured to couple a first stabilizing line (30) to the support frame and a second coupling point (22) configured to couple a second stabilizing line (32) to the support frame, wherein the first coupling point (20) is arranged at a first end portion (34) of the support frame and the second coupling point (22) is arranged at a second end portion (36) of the support frame opposite to the first end portion (34); and at least one actuator (50-56) provided on the support frame, wherein the at least one actuator (50-56) is configured to actuate the first stabilizing line (30) and/or second stabilizing line (32) relative to the support frame to move the first and/or second end portion (34, 36) of the support frame in a vertical direction.
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 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 13/08 - Auxiliary devices for controlling movements of suspended loads, or for preventing cable slack for depositing loads in desired attitudes or positions
92.
METHOD AND SYSTEM FOR REPLACING AN INSTALLED YAW RING, WIND TURBINE AND METHOD FOR OPERATING A WIND TURBINE
Method for replacing an installed yaw ring (1) of a wind turbine (2) with a replacement yaw ring (3), wherein in an initial state of the wind turbine (2) a bedframe (4) of the wind turbine (2) is pivot-mounted to a topmost segment (5) of a tower (6) of the wind turbine (2), the installed yaw ring (1) is mounted to the topmost segment (5), and at least one yaw drive (7) of the wind turbine engages (2) the installed yaw ring (1) to rotate the bedframe (4) with respect to the topmost segment (5) when the yaw drive (7) is operated, the method comprising the steps of: lifting a module (8) of the wind turbine (2), which comprises the bedframe (4), the topmost segment (5), and the installed yaw ring (1), off a tower stump (9) of the tower (6) formed by at least one further segment (10-12) of the tower (6) and placing the module (8) in a servicing position (13), detaching a submodule (17) of the module (8) comprising the bedframe (4) from the topmost segment (5) and moving the submodule (17) to a holding position (18), unmounting the installed yaw ring (1) form the topmost segment (5), mounting the replacement yaw ring (3) to the topmost segment (5), reattaching the submodule (17) to the topmost segment (5), to form a refurbished module (19) comprising the bedframe (4), the topmost segment (5), and the replacement yaw ring (3), and lifting the refurbished module (19) onto the tower stump (9).
The invention describes a wind turbine rotor blade active flap (1) comprising a primary body (1P) adapted for mounting to the trailing edge (20TE) of a wind turbine rotor blade (20); a flap turning means (10, 11, 12) adapted to turn the active flap (1) between a neutral position (R0), in which the active flap (1) directs airflow (A20S, A20P) towards the suction side (P20S) of the rotor blade (20), and a working position (R-Rmax), in which the active flap (1) directs airflow (A20S, A20P) towards the pressure side (P20P) of the rotor blade (20); and a secondary body (1S) mounted to the primary body (1P) and configured to hold the active flap (1) in its neutral position (R0). The invention further describes a wind turbine (2) comprising a number of rotor blades (20) mounted to a hub; and an active flap (1) according to the invention, mounted to the trailing edge (20TE) of each rotor blade (20).
A power connection module is provided which includes a first and a second submodules, an intermediary submodule and a plurality of conductors arranged at the intermediary submodule. Each first and second submodules includes a plurality of internal and external connection points. The intermediary submodule is arranged between the first and second submodules and includes a central portion. The plurality of conductors are arranged at the intermediary submodule and are grouped in at least a first phase group and a second phase group, wherein the electric phase of the conductors in the first phase group being different from the electric phase of the conductors of the second phase group. In central portions of the intermediary submodule, the plurality of conductors form a predetermined matrix cross-section, which comprises rows and columns. The conductors arranged in adjacent rows and/or columns of such matrix cross-section belong to a different phase group.
H01R 13/514 - BasesCases formed as a modular block or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
A method of controlling electrical power transported on one or more power cables of a wind park is provided. Each of the one or more power cables is configured to transport electrical power generated by one or more wind turbines comprised in the wind park. The method includes for at least one power cable of the one or more power cables monitoring one or more stress parameters indicative of stress acting on the power cable to generate a monitored stress parameter, determining, based on at least the monitored stress parameter, whether a reduction of the stress on the power cable is required, and, when the reduction is required, reducing the electrical power transported on the power cable to reduce the stress acting on the power cable.
The invention describes a handling apparatus (1) for a wind turbine generator (2), comprising a holding frame (11, 12) adapted to receive and hold the generator (2); a height- adjustable platform (14) adapted to engage with the drive-end (2DE) of the generator (2); a stator suspension assembly (13) adapted for mounting on the holding frame (11, 12) and for connection to the non-drive end (2NDE) of the stator (22); and a turning means (131) adapted to turn the stator suspension assembly (13) about the rotation axis (2A) of the generator (2). The invention further describes a method of performing a generator maintenance procedure using such a generator handling apparatus (1).
The present invention relates to a wind turbine tower assembly system (17) for assembling a wind turbine tower (4). The wind turbine tower assembly system (17) comprises an assembly support system (1) for temporarily securing a wedge flange adapter (2) of the wind turbine tower (4) to a first tower segment (3) of the wind turbine tower (4). The assembly support system (1) comprises an alignment pin (5) for being inserted into a first flange bolt hole (6) of the first tower segment (3) in a way that a pin head section (7) of the alignment pin (5) protrudes from an upper end (8) of the first flange bolt hole (6) and a pin main section (9) of the alignment pin (5) is arranged within the first flange bolt hole (6). The pin head section (7) is configured for being inserted into an intermediate flange bolt hole (10) of the wedge flange adapter (2). The assembly support system (1) further comprises a holding device (11) for being attached to the first tower segment (3) for preventing the alignment pin (5) from falling off the first flange bolt hole (6). The invention also relates to a method for assembling a wind turbine tower (4).
It is described a method of controlling an electrical, in particular synchronous, generator system (4) comprising a generator (7) including a stator (8) having stator windings and a rotor (9) having plural permanent magnets (10), in particular of a wind turbine, the method comprising: monitoring when a magnet temperature indicates a critical condition; in case of the critical condition, entering a magnet preventive protection control mode including to shift a phase of a generator current/s (21).
H02P 9/00 - Arrangements for controlling electric generators for the purpose of obtaining a desired output
H02P 9/12 - 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 for demagnetisingControl 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 for reducing effects of remanenceControl 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 for preventing pole reversal
H02P 29/66 - Controlling or determining the temperature of the rotor
99.
METHOD FOR THE ARRANGEMENT OF AT LEAST ONE COMPONENT DURING THE INSTALLATION OF A WIND TURBINE
A method for the arrangement of at least one component during the installation of a wind turbine is provided, wherein the component is releasably attached to a tower segment prior to a coupling of the tower segment to a tower segment support structure, wherein the tower segment forms at least a section of a tower of the wind turbine to be installed and wherein the component is attached to an attachment area at the outer surface of the tower segment, wherein the component is moved from the attachment area to an arrangement position after coupling of the tower segment to the tower segment support structure.
The present invention relates to a stator (100) for a wind turbine generator (150). The stator (100) comprises a stator segment (110) having cooling openings (111) for guiding air (101) through the stator segment (110) along a radial direction (152) of the wind turbine generator (150), and an air collecting cap (102) arranged at a radially inner surface of the stator segment (110), wherein the air collecting cap (102) forms an air collecting volume (Vc) for collecting air (101) streaming though the cooling openings (111). The air collecting cap (102) comprises plastic material. The stator (100) further comprises an air guiding channel (103), wherein the air guiding channel (103) is coupled to the air collecting cap (102) for guiding air (101) from the air collecting volume (Vc) through an air opening (105) into the air guiding channel (103). The air guiding channel (103) is configured for guiding the collected air (101) outside of the stator segment (110).
H02K 1/20 - Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
H02K 9/04 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
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
