The present disclosure relates to blades (10) for wind turbines (2), to wind turbines (2) and to methods (100) for manufacturing wind turbine blades (10). A wind turbine blade (10) comprises a spar cap (74, 76), one or more electrically insulating polymer layers (81) between the spar cap (74, 76) and an outer surface of the blade (10), and an air termination system (82, 83) arranged at the outer surface of the wind turbine blade (10).
The present disclosure relates to support and support assemblies for rotating a composite part. The support comprises a stationary support and a rotatable support, wherein the stationary support is configured to support the rotatable support, and the rotatable support is configured to receive and secure the composite part, and wherein the rotatable support is configured to rotate with respect to the stationary support. The present disclosure further relates to methods and assemblies for rotating composite parts.
In a first aspect, a suspended platform system for post-moulding operations on a wind turbine blade is provided. The system comprises a suspended working platform to hold a user, a driving system for moving the working platform, and a control unit to prevent a distance between the working platform and a surface of the wind turbine blade from being less than a safety distance threshold. In a further aspect, a method is provided. In yet a further aspect, a wind turbine blade post-moulding operation system is provided.
Disclosed is a mould system for moulding a blade shell of a wind turbine blade. The mould system comprises a first mould for manufacturing a first blade shell part of the wind turbine blade and a second mould for moulding a second blade shell part of the wind turbine blade. The first mould having a first moulding side with a first moulding surface that defines an outer shape of the first blade shell part. The second mould having a second moulding side with a second moulding surface that defines an outer shape of the second blade shell part. The mould system being configured to rotate and position the first mould such that the first moulding side is facing the second moulding side and such that the first blade shell part may be joined with the second blade shell part so as to form the blade shell of the wind turbine blade. The first mould comprises a first mould flange along at least a part of the periphery of the first moulding surface. The first mould flange being configured to provide a first shell part flange along at least a part of the periphery of the outer shape on the first blade shell part. The mould system comprises one or more fastening elements attachable to the first mould and being configured to secure the first blade shell part to the first mould during rotation and positioning of the first mould. The one or more fastening elements including a first fastening element being configured to secure the first blade shell part to the first mould at a first fastening position along the first mould flange. The mould system comprises a measurement arrangement comprising one or more measurement units including a first measurement unit. The measurement arrangement is configured to measure displacement of the first shell part flange relative to the first mould flange. The first measurement unit is configured to measure displacement of the first shell part flange relative to the first mould flange at a first measurement position along the first mould flange.
The present invention provides a wind turbine blade shell part for a wind turbine blade, the blade shell part comprising: a structural element providing structural strength to the blade shell part and comprising carbon fibres embedded in a polymer matrix; a lightning receptor exposed at an outer surface of the blade shell part and extending towards the structural element; and an electrically conductive adhesive attaching the lightning receptor to the structural element. A method for manufacturing such a blade shell part is also provided.
The present invention provides a wind turbine blade shell part for a wind turbine blade, the blade shell part comprising: a structural element providing structural strength to the blade shell part and comprising carbon fibres embedded in a polymer matrix; a lightning receptor exposed at an outer surface of the blade shell part and extending towards the structural element; and an electrically conductive adhesive attaching the lightning receptor to the structural element. A method for manufacturing such a blade shell part is also provided.
(FIG. 8C)
There is described a method of repairing a joint connection of a wind turbine blade root. The method comprises identifying a repair site at the joint connection, cutting a groove through a laminate of the wind turbine blade and into the joint connection at the repair site and inserting an insert into the groove, whereby the insert contacts the laminate and the joint connection.
A method of manufacturing a composite part (70) for a wind turbine blade (10), the method comprising the steps of providing a mould (50) comprising a mould depression (51) with a floor surface (53) and an adjacent receiving section (54), and a mould inlay (60) having an insertion section (61) and a first side (63); arranging the insertion section (61) in the receiving section (54) of the mould depression (51) so that a junction of the first side (63) and the floor surface (53) forms a first mould edge (66); arranging a fibre material (74) on a moulding surface (52) adjacent to the junction and the first side (63); infusing the fibre material (74) with a resin (75) and curing the infused fibre material (74) to manufacture the composite part (70) having a first part edge (73) being formed by the junction, wherein the material of the first side (63) is chemically inert with the resin (75).
B29D 99/00 - Subject matter not provided for in other groups of this subclass
8.
METHOD FOR APPLYING A PROTECTIVE FILM ON AT LEAST ONE PORTION OF A WIND TURBINE BLADE, WIND TURBINE BLADE, AND APPARATUS FOR FORMING A GROOVE ON A SURFACE OF AT LEAST ONE PORTION OF A WIND TURBINE BLADE
The present disclosure provides a method of applying a protective film on at least one portion of a wind turbine blade, a wind turbine blade, and an apparatus for forming a groove on a surface of at least one portion of a wind turbine blade. The method of applying a protective film on at least one portion of a wind turbine blade comprises providing the at least one portion of the wind turbine blade; forming a groove on a surface of the at least one portion of the wind turbine blade, thereby delimiting a first region of the surface of the at least one portion of the wind turbine blade from a second region of the surface of the at least one portion of the wind turbine blade, wherein the first region of the surface of the at least one portion of the wind turbine blade includes the groove; covering the first region of the surface of the at least one portion of the wind turbine blade with a protective film; and pressing an edge region of the protective film in the groove, thereby inserting the edge region of the protective film in the groove.
B29C 63/00 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor
B29C 63/02 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor using sheet or web-like material
B29C 63/06 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor using sheet or web-like material by folding, winding, bending or the like around tubular articles
The present disclosure relates to a wind turbine blade (10). The blade (10) comprises a lightning protection system, which comprises an air termination system. The blade (10) comprises a spar cap (74; 76) extending along an upwind or a downwind shell part, the spar cap (74; 76) comprising a first surface facing an outside of the blade (10) and an opposing second surface. The blade (10) comprises a first electrically conductive layer (61), extending in the longitudinal direction and arranged over the first surface of the spar cap (74; 76), and a second electrically conductive layer (62), extending in the longitudinal direction of the blade (10) and arranged over the second surface of the spar cap (74; 76). The first layer (61), the second layer (62) and the air termination system are electrically connected. The present disclosure further comprises a method (100) for manufacturing a blade (10).
There is provided a wind turbine blade shell component. The wind turbine blade shell component comprises an outer layer and an inner layer beneath the outer layer. The outer layer covers the wind turbine blade shell component. The inner layer comprises a first material having a first property and a second material having a second property. The first property is different from the second property. The inner layer is readable by an image capturing device to determine erosion of the outer layer.
The present invention relates to a wind turbine blade having a lightning protection system. The blade includes a pressure side shell part and a suction side shell part. The pressure side shell part or the suction side shell part comprises a blade component extending along a longitudinal axis of the blade and comprising one or more carbon fibre structures. The blade component is at least partially embedded in the shell part. An elongate metallic element is arranged in direct contact with the blade component, and at least part of the elongate metallic element is positioned between the blade component and an outer surface of the shell part. A lightning receptor is arranged in electrical contact with the elongate metallic element and extends to or near an outer surface of the blade shell part. The lightning receptor does not extend through the blade component.
The present invention relates to a blade handling assembly (62) for moving a wind turbine blade (10) between two locations. The blade handling assembly (62) includes at least one blade handling unit (64) comprising a motorized trolley (66) and an interface structure (68) releasably coupled to the motorized trolley (66). The interface structure (68) includes a support member (70) and a receiving member (72), wherein a fixture (74) is arranged on the receiving member (72), the fixture (74) being configured for attachment to the wind turbine blade.
The present disclosure relates to methods for manufacturing a wind turbine blade. The methods comprise providing a first blade mold (100) in a first workstation (51), and providing a set of hinge devices (300) in the first workstation (51), the hinge devices (300) comprising a static member (302) and a movable member (301). Furthermore, the method comprises coupling a first tool (200) to the movable members (301) of the hinge devices (300) and rotating the movable members (301) with respect to the static members (302) to carry out one or more first operations with the first tool (200). The method also comprises coupling a second tool (400) to the movable members (301) of the hinge devices (300) and rotating the movable members (301) with respect to the static members (302) to carry out one or more second operations with the second tool (400). The present disclosure further comprises a system for use during manufacturing of a wind turbine blade (10).
B25J 15/06 - Gripping heads with vacuum or magnetic holding means
B25J 9/02 - Programme-controlled manipulators characterised by movement of the arms, e.g. cartesian co-ordinate type
B29C 31/08 - Feeding, e.g. into a mould cavity of preforms
B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
B29C 33/26 - Opening, closing or clamping by pivotal movement
B29C 65/78 - Means for handling the parts to be joined, e.g. for making containers or hollow articles
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B64F 5/10 - Manufacturing or assembling aircraft, e.g. jigs therefor
B29D 99/00 - Subject matter not provided for in other groups of this subclass
B23P 19/04 - Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformationTools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
B23P 21/00 - Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
14.
SYSTEM AND METHOD FOR DEMOLDING WIND TURBINE BLADES DURING BLADE MANUFACTURING
The present disclosure relates to systems for demolding a wind turbine blade (10). The system comprises a demolding tool (550) comprising one or more grippers (551) configured to grip the wind turbine blade (10), the wind turbine blade (10) being held in a blade mold (100). The system further comprises one or more hinge devices (300) comprising a static member (302) and a movable member (301), the movable member (301) being configured to be connected to the demolding tool (550) and being further configured to rotate with respect to the static member (302) about a pivot axis (304). The present disclosure further comprises a method (900) for demolding a wind turbine blade (10).
The present disclosure relates to systems for attaching a shear web (42) to a first wind turbine blade shell, the first blade shell being held in a blade mold (100). The system comprises a shear web positioning tool (250) configured to hold one or more shear webs (42) and a set of hinge devices (300), each comprising a static member (302) and a movable member (301), wherein the movable member (301) is rotatable about a pivot axis (304) of the static member (302). The system further comprises that the shear web positioning tool (250) is configured to be connected to the movable members (301) of the hinge devices (300). The present disclosure further comprises a method (700) for manipulating parts during blade manufacturing.
A method of manufacturing a wind turbine blade (10) is provided, the method comprising a reinforcing structure, the wind turbine having a profiled contour including a pressure side (36) and a suction side (38), and a leading edge (18) and a trailing edge (20) with a chord having a chord length extending therebetween, the wind turbine blade (10) extending in a spanwise direction between a root end (16) and a tip end (14), the method comprising the steps of: providing a blade shell mould (44), arranging a plurality of blade shell components (41-57) in the blade shell mould (44), assembling of the reinforcing structure (62) in the blade shell mould (44), the reinforcing structure (62) comprising a plurality of strips (63) of fibre material arranged into adjacent stacks (65) of strips, wherein the step of assembling of the reinforcing structure in the blade shell mould comprises pre-assembling a plurality of building blocks (65), each building block comprising a plurality of the strips (63) of fibre material formed into a stack, and at least one interlayer (70) disposed in between neighbouring strips in the stack. A method of manufacturing a reinforcing structure, a reinforcing structure, a wind turbine blade and a modular system for manufacturing a reinforcing structure for a wind turbine blade are also provided. Improved aerodynamic performance of the wind turbine blade is achieved.
B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
B29C 70/52 - Pultrusion, i.e. forming and compressing by continuously pulling through a die
B29C 70/86 - Incorporating in coherent impregnated reinforcing layers
B29D 99/00 - Subject matter not provided for in other groups of this subclass
17.
PATTERNED FIBRE FABRICS FOR A WIND TURBINE BLADE PREFORM
The present invention relates a method of manufacturing a wind turbine blade (10) part using a preform (98). A plurality of layers are arranged within a preform mould (90) to form a stack of layers, wherein one or more of the layers is formed by an elongate fabric (70) comprising a fibre material treated with a binding agent. The elongate fabric comprises an alternating pattern of first sections of fibre material free from binding agent and second sections of fibre material treated with binding agent.
A wind turbine rotor blade includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint line and connected at the chord-wise joint line by internal joint structure. Opposite spar caps in the first blade segment include a longitudinally extending center section having a constant transverse width up to the chord-wise joint line. Wing members are disposed against opposite longitudinal sides of the center section, each wing member having a head section with a constant transverse width and a flared tail section having a decreasing transverse width, the head section aligned with an end of the center section at the chord-wise joint line. The center section is formed from a first material having a first rigidity and the wing members are formed at least partially from a second material having a second lesser rigidity such that the wings members have an overall rigidity that is less than first rigidity of the center section.
A method of manufacturing an embedding element (76) for embedment in a shell structure of a wind turbine rotor blade (10) is provided, wherein the method comprises arranging a fibre material (99) and a binding agent on the lower mould plate (93) in between the first movable core member (97) and the second movable core member (98). One or both of the core members can be pushed towards the cavity for compacting the fibre material (99), which is then heated together with the binding agent to form the embedding element (76) or a preform (90) thereof.
A method of manufacturing a pre-bent wind turbine blade (10, 82) with the steps of providing a shell mould (70, 71) and a spar cap mould (50, 51). The shell mould defines at least part of an airfoil shape in the chordwise direction (18) and defines a first pre-bend shape along a longitudinal direction (17). The spar cap mould defines at least part of substantially the same airfoil shape in the chordwise direction as the shell mould, and a second shape in the longitudinal direction. The second shape exhibits less pre-bend compared to the first pre-bend shape. Then, a first fibre material (67, 70) is arranged, infused, and cured in the spar cap mould. The cured spar cap (60, 61) is moved to a shell mould, and deformed from the second shape along the longitudinal direction to substantially the first pre-bend shape of the shell mould under the influence of gravity.
The present disclosure relates to a method for manufacturing a spar cap for a wind turbine blade, the spar cap comprising a stack of pultruded plates. The method comprising laying the stack of pultruded plates between a first and a second sidewall on a mold, infusing the stack of pultruded plates with resin, and unmolding the infused stack of pultruded plates from the mold. Further, at least one of the sidewalls is adjusted along the transverse direction relative to the stack of pultruded plates at least after the laying or prior to unmolding of the stack of pultruded plates. The present disclosure also relates to infused pultrusion stacks.
In a first aspect, an air-removing valve for removing air from inside a resin feed channel is provided. The air-removing valve comprises an inlet flow to be in fluid communication with the resin feed channel through the aperture; an outlet flow to be coupled to an under-pressure generating source for drawing air from the air-removing valve, a chamber extending from the inlet flow to the outlet flow; and a membrane arranged in the chamber, wherein the membrane is to allow air to pass through and to stop resin from passing through. In a further aspect, a resin infusion feed channel assembly for feeding resin for manufacturing a wind turbine blade component is provided. The resin infusion feed channel comprises a resin feed channel and an air-removing valve according to any of the examples herein. In yet a further aspect, a method for manufacturing a wind turbine blade component is provided.
B29C 33/10 - Moulds or coresDetails thereof or accessories therefor with incorporated venting means
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
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
B29D 99/00 - Subject matter not provided for in other groups of this subclass
23.
A WIND TURBINE BLADE WITH AN AERODYNAMIC COMPONENT
A method for attaching an aerodynamic component to a wind turbine blade body during the manufacturing process. Firstly, a spacer element is attached to either the aerodynamic component or the wind turbine blade body. The aerodynamic component is then arranged at the portion of the blade body, and the first edge of the aerodynamic component is adjusted into a mounting position to minimize the step size between the aerodynamic component and the blade body. The aerodynamic component is temporarily fixed using the spacer element, creating a compartment between the aerodynamic component and the blade body. A first adhesive is injected into this compartment through injection ports in the aerodynamic component, with the spacer element acting as a barrier to prevent the adhesive from leaking out. Finally, the adhesive is allowed to cure, permanently fixing the aerodynamic component in place.
The present disclosure relates to a segmented wind turbine blade comprising a first blade shell segment joined with a second blade shell segment via attachment means. A fairing element is provided that comprises fibre-reinforced composite material and a metal element attached to the fibre-reinforced composite material. The fairing element is fastened to the first and second shell segments using fasteners. The fairing element covers the attachment means at least partly and forms part of an aerodynamic profile of the wind turbine blade. The metal element of the fairing element is configured such that the metal element of the fairing element provides electrical contact between a first metal element in the first shell segment and a second metal element in the second shell segment. A composite fairing element and a method for manufacturing a segmented wind turbine blade are also provided.
The present invention relates to a method of manufacturing a fibre-reinforced spar cap (45) for a wind turbine blade. A plurality of pultruded fibre plates (70) is arranged in a spar cap mould (62) to form a stacked arrangement (69) of pultruded fibre plates (70). An insert member (86) is arranged next to a lateral surface (67) of the stacked arrangement (69), wherein the first insert member (86) comprises a connecting surface (87), and wherein the first insert member (86) is arranged such that its connecting surface abuts against the first lateral surface (67) of the stacked arrangement (69). Resin is infused into the stacked arrangement (69) and the insert member (86) to form the fibre-reinforced spar cap (45) or a preform thereof, which can be trimmed to the required size.
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
B29C 65/00 - Joining of preformed partsApparatus therefor
B29C 70/52 - Pultrusion, i.e. forming and compressing by continuously pulling through a die
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
26.
MOVING MOLD SYSTEMS AND METHODS IN WIND TURBINE BLADE MANUFACTURE
The present disclosure relates to a computer-implemented method (100) for controlling a manufacturing method of a wind turbine blade. The method comprises receiving first data (102) related to one or more first operations carried out in a first workstation obtained by one or more first sensors arranged with the first workstation; receiving second data (104) related to one or more second operations carried out in a second workstation obtained by one or more second sensors arranged with the second workstation; analyzing the first and second data (106) to determine a quality and/or a cycle time of one or more of the first and second operations; and determining (108) a deviation in the quality and/or cycle time of the one or more of the first and second operations.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
27.
Method for manufacturing a preform for a wind turbine blade
The present invention relates to a method of manufacturing a part, such as a preform, for a wind turbine blade. One or more channel members (72) are fastened to the mould surface of a preform mould, and a fibre material (85) and a binding agent is arranged on the mould surface (87). The fibre material, the binding agent and the one or more channel members are covered with a vacuum bag, and negative pressure is applied to the fibre material and binding agent via the one or more channel members for consolidating the preform. Each of the channel members (72) comprises a plurality of slits (77) extending between its inner surface and its outer surface, the slits having an orientation that is substantially transverse to the longitudinal axis of the channel member.
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
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
28.
MOVABLE PLATFORM AND METHOD FOR HANDLING A MOVABLE PLATFORM FOR THE MANUFACTURING OF WIND TURBINE BLADES
The present disclosure relates to a system for use in the manufacture of a wind turbine rotor blade (10). The system comprises a support element (82) for supporting a wind turbine rotor blade part. The system further comprises a movable scaffold (70) and a working platform (60) on top of the movable scaffold (70). The movable scaffold (70) is configured to move from a first position to a working position, wherein the working position is closer to the support element or to the wind turbine rotor blade part than the first position and is suitable for carrying out a blade manufacturing step. The system further comprises that the movable scaffold (70) and/or the support element comprise a retention system for retaining the movable scaffold (70) in the working position. The present disclosure further comprises a method for manufacturing a wind turbine rotor blade.
B29C 33/12 - Moulds or coresDetails thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
B29C 31/00 - Handling, e.g. feeding of the material to be shaped
B29C 33/16 - Moulds or coresDetails thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels against the mould wall using magnetic means
B29C 33/26 - Opening, closing or clamping by pivotal movement
A wind turbine blade comprising:
an aerodynamic shell body with a suction side shell part and a pressure side shell part that extends in a longitudinal direction between a root and a tip and in a transverse direction between a leading edge and a trailing edge, and
an electro-thermal system for mitigating ice formation on the wind turbine blade, the electro-thermal system comprising:
a heating layer comprising electrically conductive fibres arranged to extend substantially in a longitudinal section of the aerodynamic shell body, wherein the electrically conductive fibres of the heating layer are configured for, upon receiving electrical power from a power cable, supplying resistive heating to an exterior side of the wind turbine blade so as to mitigate ice formation on the wind turbine blade;
a metallic lightning protection layer arranged exteriorly to and overlapping the heating layer; and
a down conductor being electrically connected to the metallic lightning protection layer so as to conduct a lightning strike current from the metallic lightning protection layer to the first end of the down conductor;
wherein the heating layer and the metallic lightning protection layer are embedded in and co-infused with the aerodynamic shell body.
The present invention relates to a method and mold assembly for manufacturing a wind turbine blade part (52, 54). A plurality of preforms (98a-c) comprising a fiber material and a binding agent is arranged in a blade mold (96), followed by resin infusion and curing or hardening the resin in order to form the blade part. Arranging the plurality of preforms (98a-c) in the blade mold cavity (97) comprises placing a first preform (98a) into the blade mold cavity (97), preferably from the root end (65) of the blade mold (96), such that the first preform (98a) extends along the longitudinal direction of the blade mold (96), and such that the first preform (98a) is arranged at the longitudinal central axis (69) of the mold cavity (97). Subsequently, a second preform (98b) is placed into the blade mold cavity (97) from the first lateral edge (67) of the blade mold (96) such that the second preform (98b) slides within the mold cavity (97) until the second preform (98b) abuts the first preform (98a) along a first longitudinally extending interface (70). A third preform (98c) is placed into the blade mold cavity (97) from the second lateral edge (68) of the blade mold (96) such that the third preform (98c) slides within the mold cavity (97) until the third preform (98c) abuts the first preform (98a) along a second longitudinally extending interface (71).
The present invention relates to a method for manufacturing a reinforcing structure for a wind turbine blade (10), the method comprising the steps of: 1) arranging a plurality of strips (63) of fibre-reinforced material into adjacent stacks of strips (65a, b, c) forming a layered structure (61) with a plurality of fibre-reinforced layers (67), wherein adjacent fibre-reinforced layers of the plurality of fibre-reinforced layers are separated by interlayers (66), 2) providing at least one separation comb (70) comprising: a base region (71) and a teeth region (73) comprising a plurality of teeth (74) extending from the base region (71), wherein the plurality of teeth (74) are arranged in a linear array with gaps (79) between adjacent teeth (74), the gaps (79) being configured for allowing resin to flow from one side of the separation comb (70) to the other side of the separation omb (70), and wherein the plurality of teeth (74) are configured for penetrating the interlayers (66), 3) inserting the at least one separation comb (70) between two adjacent stacks of strips (65a, b, c) and penetrating he plurality of interlayers (66) with the plurality of teeth (74), such that the plurality of strips (63) in adjacent stacks of strips (65a, b, c) are separated by the at least one separation comb (70), 4) optionally moving the layered structure (61) to a desired location, such as into a wind turbine blade shell mould, after inserting the at least one separation comb (70) between adjacent stacks of strips (65a, b, c), 5) optionally removing the at least one separation comb (70), and 6) infusing the layered structure with resin to form a reinforcing structure (78).
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
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29C 70/86 - Incorporating in coherent impregnated reinforcing layers
B29D 99/00 - Subject matter not provided for in other groups of this subclass
There is provided a spar cap structure for a wind turbine blade. The spar cap structure comprises a main body and a lightning conductor assembly. The main body comprises a first side and a second side. The main body comprises a plurality of layers of one or more carbon fiber components, each of these layers being arranged one on top of the other between the first and the second sides, whereby the main body spans a thickness. The lightning connector assembly is arranged at one of the sides of the main body. The lightning connector assembly comprises a conductive block electrically connected to the main body. The conductive block spans a height from an outer end to an inner end of the lightning conductor assembly in a direction substantially parallel to the thickness of the main body. The inner end is connectable to a down conductor of a lightning protection system of a wind turbine blade.
The present invention relates to a method of manufacturing a fibre-reinforced part (50) for a wind turbine blade (10). The method comprises the steps of providing a first layer (57), the first layer comprising a thermoplastic elastomer; arranging a second layer (56) on top of the first layer (57), the second layer (56) comprising a fibre material; and heating the first layer (57) and the second layer (56) to a temperature of 35-90° C. The heated first and second layers are then contacted with a liquid epoxy resin or a liquid mixture of epoxy resins. Subsequently, the epoxy resin is cured to adhere the first layer (57) to the second layer (56) to obtain the fibre-reinforced part.
B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
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
B29C 70/86 - Incorporating in coherent impregnated reinforcing layers
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
The present invention relates to a system for assembling a wind turbine blade shell. The system comprises a first support structure comprising a stationary portion and a moveable portion, the moveable portion being adapted to support a first wind turbine blade shell half; a second support structure adapted to support a second wind turbine blade shell half; moving means attached to the moveable portion and configured to move the moveable portion between: i) a first position in which the moveable portion is positioned above the stationary structure, and ii) a second position in which the moveable portion is positioned above the second support structure, wherein when the moveable portion is in the second position, a first wind turbine blade shell half supported by the moveable portion and a second wind turbine blade shell half supported by the second support structure are assembled, forming the wind turbine blade shell.
B29C 70/36 - 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 impregnating by casting, e.g. vacuum casting
B29D 99/00 - Subject matter not provided for in other groups of this subclass
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
The present disclosure relates to a wind turbine blade provided with one or more vortex generators at respective one or more locations on the surface of the blade. Each vortex generator comprises a fin with a leading edge and a trailing edge, the leading edge of the fin being closer to the leading edge of the wind turbine blade than the trailing edge of the fin, and wherein the leading edge of the fin extends from a bottom portion proximal to the surface of the blade to a top portion distal from the surface of the blade, the leading edge of the fin being configured such that at least a portion of the leading edge of the fin between the bottom portion and the top portion is located closer to the leading edge of the wind turbine blade than the bottom portion of the fin.
In a first aspect, a wind turbine blade is provided. The wind turbine blade comprises an upper blade shell part with an upper spar cap structure and a lower blade shell part with a lower spar cap structure. The upper spar cap structure and the lower spar cap structure comprise a first glass fiber stack comprising one or more glass fiber pultrusions. In a further aspect, a method for manufacturing a wind turbine blade according to any of the examples herein is provided. In yet a further aspect, a method to repair a wind turbine blade according to any of the examples herein is provided. In yet a further aspect, a wind turbine blade repaired with any of the methods to repair wind turbine blades herein is provided.
In a first aspect, a spar cap structure for a wind turbine blade is provided. The spar cap structure comprises a main body, a lightning connector assembly and a conductive assembly. The main body comprises a first side and a second side, wherein the main body comprises a plurality of layers of one or more carbon fiber components. The lightning assembly is arranged at one of the sides of the main body and extends a height from an outer end to an inner end in a direction substantially parallel to the thickness of the main body. The conductive assembly extends from the main body to the lightning connector assembly to electrically connect the main body to the lightning connector assembly. In a further aspect, a wind turbine blade comprising one or more spar cap structures according to any of the examples herein is provided. In yet a further aspect, a method for manufacturing a spar cap structure and a wind turbine blade according to any of the examples herein is provided.
In a first aspect, a spar cap structure for a wind turbine blade is provided. The spar cap structure comprises a carbon fiber stack and a glass fiber stack. The carbon fiber stack comprises a plurality of layers of one or more carbon fiber components arranged one on top of the other forming rows of layers of one or more carbon fiber components and one or more conductive veils arranged between two consecutive rows of the layers of one or more carbon fiber components. The glass fiber stack comprises one or more layers of one or more glass fiber components, and conductive elements electrically connected to the conductive veils of the carbon fiber stack. The glass fiber stack is configured to accommodate a lightning receptor to be electrically connected to the conductive elements. Furthermore, the one or more conductive veils and the conductive elements are at least partially overlapped. In a further aspect, a wind turbine blade comprising one or more spar cap structures according to any of the examples herein is provided. In yet a further aspect, a method for manufacturing a spar cap structure and a wind turbine blade according to any of the examples herein is provided.
There is provided a wind turbine blade component for a wind turbine blade. The wind turbine component comprises a main body and a first guide. The main body comprises a plurality of layers, including a first layer and a second layer, the layers being arranged one on top of the other between a first side and a second side thereof, whereby the main body spans a thickness. The layers comprise fiber pultrusions. The first guide, which comprises a porous material, is arranged at the first side of the main body. The first guide comprises a plurality of portions, including a first portion and a second portion, the portions being arranged one on top of the other. Each of the plurality of portions of the first guide is associated with one or more layers of the plurality of layers. A width of the first portion of the first guide is different to a width of the second portion of the first guide, whereby a plane in which the first layer abuts the first portion of the first guide is misaligned with a plane in which the second layer abuts the second portion of the first guide.
In a first aspect, a tool for positioning a spar cap (74) in a blade mould is provided. The tool comprises a structure (200) comprising a central portion (210), a first support (220) and a second support (230). The tool further comprises a connector (300) to be releasably attached to the spar cap, and a reference arm (400) configured to engage a first spar cap reference (75). In a further aspect, a method for positioning a spar cap in a blade mould is provided. The method comprises moving the tool towards the spar cap. The method further comprises engaging the reference arm of the tool and the first spar cap reference, and releasably attaching the connector of the tool to the spar cap. In addition, the method comprises moving the tool towards the blade mould to arrange the spar cap on the blade mould.
The present invention relates to a method of performing at least one post-moulding operation on a blade segment (70) of a wind turbine blade. The method comprises the providing a holding device (88) for supporting the blade segment (70) at its spar structure (62), the holding device (88) comprising a coupling member (90) for engaging the spar structure (62). The blade segment (70) is held with the holding device (88) such that the spar structure (62) of the blade segment (70) is engaged by the coupling member (90), and performing at least one post-moulding operation on the shell structure (82) of the blade segment (70).
A debagging system (100) for use in a debagging process during the manufacture of a wind turbine blade is provided. The debagging system comprises: a debagging tool (110, 210), and conveying means configured to moving the debagging tool along a longitudinal direction of a mould for manufacturing a wind turbine blade part. The debagging tool (110, 210) comprises: a lifting bar (112, 212) for insertion under infusion tools (50) and lifting the infusion tools (50) during the debagging process, the lifting bar (112, 212) having a first end and a second end, and a support frame (120, 220) for carrying the lifting bar, wherein the lifting bar (112, 212) is coupled to the support frame (120, 220), and wherein the debagging tool is suspended from the conveying means so that the debagging tool during use can be arranged above the mould and be moved along the longitudinal direction of the mould.
B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
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
43.
LIFTING DEVICE FOR TURNING A SHEAR WEB OF A WIND TURBINE BLADE
A lifting device designed for turning of a shear web in wind turbine blades. The device enables the shear web, comprising a web body positioned between two mounting flanges, to be turned from a horizontal to a vertical orientation around a longitudinal axis extending through the centre of gravity. The lifting device comprises an elongated body with two attachment points, fixing devices to releasable engage the shear web near the mounting flanges. The lifting device further comprises first and second repositioning mechanisms that allow for flexible adjustment of the distances between the fixing devices and the respective attachment points along the elongated body. This feature facilitates the positioning of the shear web's centre of gravity between the attachment points, ensuring efficient lifting and handling during wind turbine blade assembly.
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 1/64 - 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 comprising article-engaging members of a shape complementary to that of the articles to be handled for T- or I-section beams or girders
B66C 1/16 - Slings with load-engaging platforms or frameworks
44.
A MOULDING ASSEMBLY FOR MANUFACTURING A SHELL PART OF A WIND TURBINE BLADE
The present invention relates to a moulding assembly (100) for manufacturing a shell part of a wind turbine blade, and to methods of manufacturing a shell part of a wind turbine blade using the moulding assembly. The moulding assembly (100) comprises a blade mould (96) with a moulding cavity (97), a gripping device (76) for releasably engaging a preform (98) for the shell part, and a lifting device (102). A tensionable member (112) is attached to the blade mould (96), and a tensioning unit coupled to the tensionable member is used for creating and maintaining tension on the tensionable member while arranging an engaged preform within the moulding cavity.
B29C 70/56 - Tensioning reinforcements before or during shaping
B29C 70/24 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least three directions forming a three dimensional structure
B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
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
The present invention relates to a method of manufacturing a wind turbine rotor blade part comprising stacking a plurality of plies (70, 71, 72) to form a stack of plies (80) such that the stack of plies has at least one stepwise tapering edge (84, 85). A plurality of plastic fasteners (90) is used to interconnect the plies (70, 71, 72) by passing the plurality of plastic fasteners (90) through the stack of plies to form a stack of interconnected plies (82). The stacks of interconnected plies (82a, 82b, 82c, 82d) are arranged within the blade mold, followed by resin infusion into the one or more stacks of interconnected plies within the blade mold, and curing and/or hardening the resin in order to form the blade part.
B29C 70/24 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least three directions forming a three dimensional structure
B29C 65/56 - Joining of preformed partsApparatus therefor using mechanical means
B29C 70/42 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
A spar cap for a wind turbine blade, comprising a load-carrying structure including a primary laminate and a secondary laminate arranged with an overlap in a longitudinal axis of the spar cap, wherein the width of the secondary laminate being at least 1.1 times greater than the width of the primary laminate.
Embodiments of present disclosure relates to efficient control system and method for controlling operation of at least one machine in an industrial environment. The control system comprises a target path correction unit and a position correction unit. The target path correction unit is configured to modify a target path fed to the at least one machine, based on real-time spatial position of the at least one machine. The position correction unit is configured to correct real-time operating position of the at least one machine. The position correction unit corrects the real-time operating position by sensing one or more parameters related to the at least one machine and displacing operating tool of the at least one machine, based on the one or more parameters. The control system achieves tight tolerance in manufacturing of large structures inexpensively and eliminates the need of high skilled operator to operate the machine.
A method of manufacturing a wind turbine blade shell component (38) is provided, the method comprising arranging a plurality of pultrusion plates (64) on a blade shell material (89) in a mould (77) for the blade shell component. The pultrusion plates (64) are bonded with the blade shell material to form the blade shell component, wherein each pultrusion plate (64) is formed of a pultrusion fibre material comprising a glass fibre material (70) and a carbon fibre material (68), wherein carbon fibre material is provided along the entire lateral surfaces (83, 84) of the pultrusion plate. The glass fibre material is selected from a glass fibre fabric, a glass fibre preform comprising a consolidated arrangement of glass fibres and a binding agent, and a plurality of glass fibres encapsulated by a veil or a foil.
A mandrel device (50) for manufacturing a hollow spar beam (30) for a segmented wind turbine blade (10) in a mould (100), the mandrel device comprising:
a plurality of mandrel elements (52, 53, 54, 55, 56, 57, 58, 59) each comprising a substantially rigid material, and
a plurality of attachment devices (60) configured for detachably attaching adjacent mandrel elements,
wherein the mandrel device has an assembled configuration and a detached configuration, wherein:
in the assembled configuration, the plurality of attachment devices is engaged so that the plurality of mandrel elements is detachably attached to each other, and the plurality of mandrel elements extends along a longitudinal axis of the mandrel device so that the mandrel device has a substantially box shaped cross-section that varies along the longitudinal axis, and
in the detached configuration, the plurality of attachment devices is disengaged so that the plurality of mandrel elements is detached from each other, and the plurality of mandrel elements is inwardly collapsible.
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
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
50.
SYSTEM AND METHOD FOR ESTIMATING ENERGY PRODUCTION FROM A WIND TURBINE
The present invention relates to method for estimating energy production (107) from a wind turbine (101) with plurality of blades (102). The method comprises obtaining one or more infrared images (103) of each blade (102) of the wind turbine (101). Further, identifying one or more cross-sectional regions (302) of each of the blade (102) using the one or more infrared images (103) based on a boundary region (301), wherein the boundary region (301) is indicating a transition from a laminar air flow to a turbulent air flow. Furthermore, determining plurality of polar values indicative of an aerodynamic profile for each of the one or more cross-sectional regions (302) based on one or more panel method based techniques and the boundary region (301). Finally, estimating the energy production (107) for the wind turbine (101) based on one or more blade (102)-element momentum (BEM) based techniques using the plurality of polar values.
A method of masking a mould for moulding a wind turbine blade shell part, the method comprising the steps of: arranging a masking device in a mould so that the masking device covers the non-coating zone of the mould surface, spraying a coating onto a mould surface of the mould so that the coating is applied to a coating zone of the mould surface and prevented from being applied to a non-coating zone of the mould surface by the arrangement of the masking device, and removing the masking device from the mould so that the non-coating zone is exposed. The masking device is configured so that, upon terminating spraying of the coating at the first longitudinal boundary of the coating zone, a lip portion of the masking device is separated from the coating applied on the coating zone by a gap.
A method of separating a pultrusion element from a wind turbine blade part. The method comprises providing a wind turbine blade part comprising a plurality of embedded pultrusion elements arranged in a stack. The plurality of pultrusion elements includes a first pultrusion element and a second pultrusion element, wherein each pultrusion element comprises a first side and an opposite second side. The wind turbine blade part comprises an interlayer between the first side of the first pultrusion element and the second side of the second pultrusion element. A peel strength between the interlayer and the first and/or second pultrusion element is weaker than a peel strength within the first and/or second pultrusion element. The method comprises separating the first pultrusion element from the second pultrusion element at a separation line extending in the interlayer arranged between the first and second pultrusion elements.
B29B 17/02 - Separating plastics from other materials
B09B 3/30 - Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
B29B 17/00 - Recovery of plastics or other constituents of waste material containing plastics
B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
A component platform lock for holding a wind turbine blade component during attachment of the wind turbine blade component to a wind turbine blade shell part, the component platform lock comprising a first and second moving pin, first and second inner cone stud and first and second collets surrounding the inner cone stud, the collets expanding based on the movement of the inner cone stud relative to the collets.
A wind turbine blade (10) comprising a pressure side (24) and a suction side (26), a leading edge (18) and a trailing edge (20). At least a portion of the blade (10) located in a trailing edge region (142) at or adjacent to the trailing edge (20) is a noise reducing portion defining an exposed surface and comprising a plurality of sound reducing or sound absorbing acoustic resonators (58), each of the resonators (58) comprising an opening (55) in the exposed surface and a cavity (56) having a length L between the opening (55) and a bottom (57) of the cavity opposite the opening (55).
In a first aspect, a method for positioning a mounting guide assembly on a blade root portion of a wind turbine blade is provided. The method comprises removably joining a first positioning member to a blade root flange, engaging the first guide member and the first positioning member and joining the first mounting guide member to the blade root portion. The method further comprises removably joining a second positioning member to a blade root flange, engaging the second guide member and the second positioning member and joining the second mounting guide member to the blade root portion. In a further aspect, a positioning member for positioning a mounting guide member on a blade root portion of a wind turbine blade is provided. In yet a further aspect, a positioning assembly for positioning a mounting guide assembly on a blade root portion is provided.
A method of manufacturing a composite part is provided. The method includes manufacturing a plurality of laminate layers (100) by integrating a fiber material (102) with a matrix material (104). The method also includes stacking the plurality of laminate layers (100) atop each other to form a stacked laminate (112) part. The method also includes applying a partial vacuum to the stacked laminate (112) part. The method also includes modifying a shape of the stacked laminate (112) part by allowing one or more of the plurality of laminate layers (100) to slide with respect to each other under the partial vacuum. The method also includes applying a full vacuum to the modified shape of the stacked laminate (112) part and heating the stacked laminate (112) part to fuse the plurality of laminate layers (100) together to manufacture the composite part.
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
B29D 99/00 - Subject matter not provided for in other groups of this subclass
B29C 70/20 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in a single direction, e.g. roving or other parallel fibres
B29C 70/86 - Incorporating in coherent impregnated reinforcing layers
B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
57.
PULTRUSION PROCESS FOR MANUFACTURING A FIBRE REINFORCED COMPOSITE ARTICLE FOR A WIND TURBINE BLADE
The present invention relates to a pultrusion process for manufacturing a fibre reinforced composite article (64). The process comprises the steps of impregnating a fibre material, such as fibre rovings or fibre tows, with a resin to form a resin-impregnated pultrusion string (109), pulling the resin-impregnated pultrusion string through a die (107) and applying heat to the resin-impregnated pultrusion string (109) to form an at least partially cured pultrusion string. A surface (115, 116) of the at least partially cured pultrusion string is treated with a primer composition comprising a silane compound to form a primer- treated pultrusion string, and the primer-treated pultrusion string is cut to provide the pultruded composite article (64).
B29D 99/00 - Subject matter not provided for in other groups of this subclass
C08G 77/20 - Polysiloxanes containing silicon bound to unsaturated aliphatic groups
C09D 183/00 - Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon onlyCoating compositions based on derivatives of such polymers
B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
58.
Devices and methods for mitigating vibrations in wind turbine blades
A device and method for reducing vibrations in a wind turbine with a rotor in standstill are provided. The device includes a portion configured to protrude beyond a leading edge of a wind turbine blade. The device includes a portion configured to protrude beyond the leading edge of the wind turbine and may be releasably attached around the wind turbine blade substantially along a chordwise direction. The device may be detached from the wind turbine blade before the wind turbine starts to operate.
The present disclosure relates to devices for wind turbine blades and methods for reducing vibrations in wind turbines with a rotor in standstill. A device comprises a portion configured to protrude beyond a leading edge of a wind turbine blade in a local chordwise direction. The portion configured to protrude beyond the leading edge is configured to at least partially form an air channel in front of the leading edge.
The present disclosure relates to a method for manufacturing a blade segment for a segmented wind turbine blade, and a resulting segment for a segmented wind turbine blade as well as the segmented wind turbine blade. In particular, the blade segment comprises a female spar part defining an inner cavity and having a longitudinal inner end and an opposite longitudinal open end towards an end face of the blade segment, a first spar cap connected to an inner surface of a first shell portion and comprising a first primary spar cap portion. The blade segment further comprises a first secondary spar cap portion affixed to a first outer surface of the female spar part. The first secondary spar cap portion is glued to the inner surface of the first shell portion and/or to the first primary spar cap portion forming a glue interface between the first secondary spar cap portion and the inner surface of the first shell portion and/or the first primary spar cap portion.
A rotor blade assembly of a wind turbine includes a first blade component and a second blade component arranged together at an interface. The interface includes a gap between the blade components. The rotor blade assembly also includes a re-closeable fastening assembly having first and second fastening members. The first fastening member is arranged with a surface of the first blade component or the second blade component. The rotor blade assembly further includes a flexible sealing member arranged so as to cover the gap. The second fastening member is arranged with a surface of the flexible sealing member to align with the first fastening member on the surface of the first blade component or the second blade component. Thus, the flexible sealing member is secured at the interface to each of the first and second blade components via the first and second fastening members.
The present invention relates to a moulding assembly (100) for manufacturing a shell part of a wind turbine blade, the moulding assembly (100) comprising a blade mould (62) comprising a moulding cavity (63) for moulding the shell part, the moulding cavity (63) having a root end and an opposing tip end. A rack (66) is provided comprising a plurality of receiving portions (74, 75, 76), wherein cartridges (68a, 68b, 68c) are arranged on the respective receiving portions (74, 75, 76) of the rack (66). A plurality of sheet supply rolls (90) is arranged within each cartridge, wherein each cartridge comprises a guide member (78) configured to guide each sheet supply roll (90) along a predetermined path within the cartridge.
B65H 19/12 - Lifting, transporting, or inserting the web rollRemoving empty core
B65H 49/00 - Unwinding or paying-out filamentary materialSupporting, storing, or transporting packages from which filamentary material is to be withdrawn or paid-out
An inspection system (200) for inspecting a pultrusion plank (300) for a wind turbine (10) is described. The inspection system includes an array device (210) of at least two microwave probes (211; 212) including a first microwave probe (211) and a second microwave probe (212) being offset from each other. The first microwave probe (211) and the second microwave probe (212) define a first and a second probing area (301, 302), forming an overlap area (303) between the first probing area (301) and the second probing area (302). The first microwave probe and the second microwave probe are adapted to provide different frequencies and/or modes of microwaves for inspecting the plank. The inspection system further includes a control unit (400) adapted to vary the frequencies and/or modes of the microwaves from first microwave probe and the second microwave probe during inspection of the plank.
An inspection system (200) for use during manufacturing for inspecting a moving electrically conductive component (300) of a blade for a wind turbine (10) is described. The inspection system (200) includes an eddy current array probe device (210) having at least two electromagnetic coils (220) being offset from each other. The inspection system further includes a sensor device for sensing eddy currents induced in the electrically conductive component (300) by the eddy current array probe device (210); and a constant-liftoff mechanism (500) for maintaining a substantial constant liftoff (231) between the eddy current array probe device (210) and the electrically conductive component (300). Further, an inspection method for inspecting an electrically conductive component (300) of a blade for a wind turbine (10) during manufacturing of the blade of the wind turbine is described.
G01N 27/90 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
A wind turbine blade and a wind turbine having such wind turbine blade is disclosed. The wind turbine blade having a profiled contour including a pressure side and a suction side, and a leading edge and a trailing edge with a chord extending therebetween defining a chordwise direction. The wind turbine blade extends in a longitudinal direction between a root end and a tip end and having a blade length along the longitudinal direction. The wind turbine blade has a first airfoil blade section along the longitudinal direction being located between 40% and 100% of the blade length measured from the root end. Within the first airfoil blade section, the pressure side is substantially straight near the trailing edge.
The present disclosure is directed to a rotor blade having a passive airflow modifying assembly to create an airflow feature along the blade, based on the instant pressure gradient around the blade during operation. The present disclosure also is directed to a rotor blade that passively channels airflow through the passive airflow modifying assembly to create an air feature that decreases the aerodynamic load, at times when the aerodynamic load experienced by the blade is bearing on the rotatable hub, and one the passively channels airflow through the passive airflow modifying assembly to create an air feature that increases the aerodynamic load, at times when the aerodynamic load is not bearing on the rotatable hub, and one that passively operates to not create an air feature, at times when the requisite pressure gradient is not met and/or when the load conditions are not an issue.
The present invention relates to method of manufacturing a wind turbine blade, the method comprising the steps of providing a first shell half and a second shell half, providing a shear web having a first edge and an opposing second edge, and attaching the first edge of the shear web to an inner surface of the first shell half. One or more guide members are mounted onto an inner surface of the second shell half for guiding the shear web, each guide member comprising a hollow body and a guiding surface.
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 33/12 - Moulds or coresDetails thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
The present invention relates to a pre-manufactured spar cap for a wind turbine blade comprising a spar cap structure comprising a plurality of fibre-reinforced composite elements arranged in stacked rows and separated by interlayers and a first and/or second damage tolerant cover sheet. The first and/or second damage tolerant cover sheets each comprises a first damage tolerant fibre layer and a second damage tolerant fibre layer attached to each other in attachment areas, wherein the attachments areas are separated from each other by a distance between 1-5 cm. Furthermore, the spar cap structure and the first and/or second damager tolerant cover sheet are embedded in a first cured resin. The present invention also relates to a damage tolerant cover sheet as such, as well as a wind turbine comprising a first and/or second damage tolerant cover sheet. Also, the present invention relates to methods of manufacturing a premanufactured spar cap, a wind turbine shell member and a wind turbine blade comprising the first and/or second damage tolerant cover sheet.
The present invention relates to a root end assembly (100) for incorporating a plurality of fastening members (74) into the root end of a wind turbine blade shell part during a moulding operation. The root end assembly (100) comprises a mounting plate (70) with a plurality of apertures (72) and a plurality of sheath members (83), each sheath member being disposed in a respective aperture of the plurality of apertures (72). Connection members (78) are received in the sheath members (83), and a plurality of said fastening members (74) are releasably attached to a respective connection member of the plurality of connection members (78) such that the fastening members (74) extend substantially normal to a first surface (77) of the mounting plate (70). The apertures (72) are dimensioned for allowing translational movement of the sheath members (83) in the respective apertures (72).
B29C 33/12 - Moulds or coresDetails thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
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
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
70.
DEVICES AND METHODS FOR MITIGATING VIBRATIONS IN WIND TURBINE BLADES
The present disclosure relates to devices for wind turbine blades and methods for reducing vibrations in wind turbines. More particularly, the present disclosure relates to devices for mitigating vortex induced vibrations and stall induced vibrations, wind turbine blades comprising such devices, and methods for reducing wind turbine vibrations when the wind turbine is parked, especially during wind turbine installation and/or maintenance. A method for mitigating vibrations of a parked wind turbine comprises arranging a device in an inactive state with a wind turbine blade; and causing the device to transition to an active state in which the device grips the wind turbine blade more strongly than in the inactive state.
In a first aspect, a wind turbine blade inspection system for detecting defects in a wind turbine blade is provided. The wind turbine blade inspection system comprises a directional light source, a diffuse light source, an image-capturing device and a controller. The controller is configured to analyze images from the image-capturing devices to detect a defect. In a further aspect, a computer-implemented method for detecting defects in a wind turbine blade is provided. In a yet further aspect, a computing system comprising a processor configured to perform a method according to any of the examples herein is provided. In yet a further aspect, a computing program comprising instructions, which, when the program is executed by a processor, cause the processor to carry out a method according to any of the examples herein is provided.
A wind turbine blade includes: an aerodynamic shell body with a suction side shell part and a pressure side shell part that extends in a longitudinal direction between a root and a tip and in a transverse direction between a leading edge and a trailing edge, and a de-icing system. The de-icing system includes: a number of heating layers each having electrically conductive fibres extending substantially in the longitudinal direction of the wind turbine blade along a longitudinal section of the aerodynamic shell body to provide resistive heating to the longitudinal section of the aerodynamic shell body; a number of metallic patches including a first metallic patch, the number of metallic patches being arranged to contact at least the number of heating layers; and a conductor cable that is electrically connected to the number of metallic patches and further is configured for electrically connecting to a power source.
The present invention relates to a method of manufacturing a wind turbine blade comprising the steps of manufacturing a pressure shell halves and arranging a spar structure (62) within one of the shell halves. The spar structure (62) comprises two parts releasably coupled to each other. The method results in a segmented wind turbine blade for easy transportation and re-assembly.
A leading-edge protector element for protecting a leading-edge of a wind turbine blade is provided. The leading-edge protector element includes a film layer and a rubber layer, and is provided on a coiled-up roll. The leading-edge protector element has a thickness between a first edge, a second edge, a third edge, and a fourth edge. The thickness decreases along a transverse direction towards the third edge and towards the fourth edge. The leading-edge protector element for protecting a leading-edge of a wind turbine blade may alternatively only include a rubber layer and also be provided on a coiled-up roll.
The present invention relates to a spar cap for a wind turbine blade and a method for manufacturing said spar cap. The spar cap comprises: a plurality of reinforcing fibre layers comprising unidirectionally oriented reinforcement fibres, wherein the plurality of reinforcing fibre layers are arranged such that the spar cap tapers in thickness towards a first longitudinal end, and a number of first fibre skin layers arranged on a first surface of the plurality of reinforcing fibre layers, and a number of second fibre skin layers arranged on a second surface of the plurality of reinforcing fibre layers, such that the plurality of reinforcing fibre layers are arranged between the number of first fibre skin layers and the number of second fibre skin layers. The number of first fibre skin layers and the number of second fibre skin layers extend beyond the plurality of reinforcing fibre layers towards the first longitudinal end of the spar cap, and the first longitudinal end of the spar cap is serrated along a transverse direction, forming a first serrated section.
B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29D 99/00 - Subject matter not provided for in other groups of this subclass
B29K 31/00 - Use of polyvinylesters as moulding material
B29K 63/00 - Use of epoxy resins as moulding material
B29K 67/00 - Use of polyesters as moulding material
B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
76.
MANUFACTURE OF A LEADING-EDGE PROTECTION ELEMENT BY TRIMMING
The present invention provides a method for trimming a side portion of a pre-manufactured leading-edge protection element for a wind turbine blade. The element comprises a first side portion and a second side portion, the first side portion, when mounted to the wind turbine blade, extending from the leading edge and along a part of a pressure side of the wind turbine blade, and the second side portion, when mounted to the wind turbine blade, extending from the leading edge and along a part of a suction side of the wind turbine blade, or vice versa. The method comprises steps of: providing a support structure and a first cutting tool; arranging element on the support structure and fixating the element to the support structure, and cutting along a predetermined cutting path, whereby the leading-edge protection element is trimmed to a predetermined length. A corresponding system is also provided.
B26D 1/157 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis
LM WIND POWER BLADES (QINHUANGDAO) CO. LTD (China)
Inventor
Giedrojc, Adam
Zheng, Wei
Abstract
In a first aspect, a guiding system for a wind turbine blade component is provided. The guiding system comprises a guide member configured to guide the wind turbine blade component relative to an inner surface of the blade shell. The guide member is removably attached to a base which is configured to be connected to the inner surface of the blade shell. In a further aspect, a method for mounting a wind turbine blade component within a wind turbine blade is provided. In a further aspect, a wind turbine blade is provided as well.
A rotor blade for a wind turbine is disclosed. The rotor blade is comprising a first shell and a second shell, forming a first aerodynamic surface, a second aerodynamic surface, a trailing edge, and a leading edge. Furthermore, the rotor blade has at least one connective element having at least a first shell support portion, a second shell support portion, and an element support portion, wherein the first shell support portion is connected to the element support portion by a first arm, wherein the second shell support portion is connected to the element support portion by a second arm. The connective element is arranged, mounted, and/or attached between the first shell and the second shell by a first shell connection being effective between the first shell support portion and the first shell, by a second shell connection being effective between the second shell support portion and the first shell, and by an element connection being effective between the element support portion and the second shell.
The present disclosure relates to a wind turbine blade comprising a leading-edge heating element extending along at least a portion of the leading edge of the wind turbine blade, the leading-edge heating element being configured for deicing a corresponding portion of an exterior surface of the leading edge; a first plurality of heating strips, each heating strip of the first plurality of heating strips extending in a substantially spanwise direction of the wind turbine blade, the first plurality of heating strips forming part of a first shell portion of the wind turbine blade, wherein the first shell portion is the pressure side shell portion or the suction side shell portion, the first plurality of heating strips being spaced apart from one another and from the leading-edge heating strip in a chordwise direction, each heating strip comprising carbon-fibre yarn and/or tow material.
The present invention relates to a leading edge protection for a wind turbine blade, wherein a leading edge axis of the leading edge protection is configured to be fitted on at least part of a leading edge of a wind turbine blade and the leading edge protection is configured to extend between the leading edge and a first edge downstream a first side of the wind turbine blade as well as between the leading edge and a second edge downstream a second side of the wind turbine blade, wherein the leading edge protection comprises a first part and wherein the first edge is configured to be non-parallel with the leading edge of the wind turbine blade along the first part of the leading edge protection. The present invention further relates to a wind turbine blade comprising the leading edge protection and a wind turbine comprising the wind turbine blade. Finally, the present invention relates to a method for protecting a leading edge of a wind turbine blade arranged on a wind turbine and a leading edge protection obtainable by that method.
A method of manufacturing a shell of a wind turbine blade is disclosed. The method of manufacturing includes laying one or more layers of fiber on a surface of mould to form the shell. A spar element is positioned at a pre-defined position on the one or more layers of fiber, and a vacuum bag is positioned or covered around the one or more layers of fiber and the spar element. The method further includes step of infusion of resin through the one or more layers of fiber and the spar element. The resin is subsequently allowed to cure to obtain the shell of the wind turbine blade. The spar element is thus adhered to the shell through resin infusion process.
B29D 99/00 - Subject matter not provided for in other groups of this subclass
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
A method of manufacturing a rotor blade of a wind turbine using a mold assembly includes placing a first blade segment in a reusable mold portion; placing and securing a reusable spar fixture within a custom intermediate mold portion; placing a spar cap atop the custom intermediate mold portion and the reusable spar fixture; placing blade skins in the custom intermediate mold portion and/or around a portion of the spar caps; placing a second blade segment around a portion of the spar caps; aligning the first blade segment with a first end of the blade skins; aligning a second end of the blade skins with a first end of the second blade segment; providing a vacuum only within the custom intermediate mold portion; infusing the blade skins with a resin to join the first blade segment, the blade skins, and the second blade segment together to form the rotor blade.
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
B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
B29D 99/00 - Subject matter not provided for in other groups of this subclass
Disclosed is a wind turbine blade extending from a root to a tip. The wind turbine blade comprises a root region and an airfoil region comprising the tip, a pressure side, a suction side and a chord line extending between a leading edge and a trailing edge. The wind turbine blade comprises a leading edge protection element. The leading edge protection element is arranged at the leading edge of the wind turbine blade so as to form an exterior surface at the leading edge of the wind turbine blade. The leading edge protection element comprises a first layer made of a first material provided with an added pigment material, wherein the added pigment material has a first content by weight defined as the weight of the added pigment material divided by the weight of the first layer. The leading edge protection element comprises at least one second layer made of a second material provided with or without an added pigment material, wherein the added pigment material has a second content by weight defined as the weight of the added pigment material divided by the weight of the at least one second layer. The second content by weight is smaller than the first content by weight. The at least one second layer is arranged nearer the exterior surface of the blade than the first layer.
A method of forming a rotor blade includes positioning first dry skin layer(s) in a first mold. The method also includes placing a wedge-shaped core material having a mounting surface atop the first dry skin(s) in the first mold at a trailing edge end of the rotor blade. The method further includes infusing the first dry skin layer(s) and the core material together via a resin material to form a first shell member. The method includes applying an adhesive onto the mounting surface and then placing a second mold with a second shell member arranged therein atop the first mold containing the first shell member to form the rotor blade such that a portion of the second shell member rests atop the mounting surface. Thus, the method includes securing the shell members together via the adhesive, wherein the core material supports the trailing edge end of the rotor blade.
The present invention relates to a wind turbine blade having a profiled contour including a pressure side and a suction side and a leading edge and a trailing edge with a chord having a chord length extending therebetween, the wind turbine blade extending in a spanwise direction between a root end and a tip end, wherein the wind turbine blade comprises a trailing edge section defined between a first trailing edge section end and a second trailing edge section end, wherein the trailing edge section comprises a plurality of slits, including: a first plurality of slits extending a first distance from the first trailing edge section end toward the second trailing edge section end, and a second plurality of slits extending a second distance from the first trailing edge section end toward the second trailing edge section end, wherein the second distance is smaller than the first distance, and wherein the trailing edge section is part of the wind turbine blade or wherein the trailing edge section is part of a trailing edge panel attached to the wind turbine blade.
The present disclosure relates to wind turbine blade assemblies comprising a wind turbine blade and a plurality of aerodynamic add-ons. The aerodynamic add-ons may be asymmetrically arranged on the suction and pressure side of the blade. The aerodynamic addons may include add-ons of a plurality of different types. The present disclosure further relates to computer-implemented methods for determining a configuration of a wind turbine blade assembly including a wind turbine blade and a plurality of aerodynamic add-ons, and to computer programs and data processing systems configured to carry out such methods.
G06F 30/28 - Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
F03D 7/02 - Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
A system (50) for handling a structural member (44) of a blade (10) of a wind turbine (2), comprising a member support (52) configured for supporting the structural member (44), the member support (52) being configured to be mounted to a base (51), and a plurality of member turning devices (60) positioned along a longitudinal axis (54) of the member support (52), the plurality of member turning devices (60) being connected to the member support (52) and configured for turning the structural member (44).
A method of manufacturing a wind turbine blade (10) is provided, the method comprising the steps of providing a first shell half (38) and a second shell half (36), providing at least one shear web (50) having a web body (61) arranged between a first mounting flange (62) and an opposing second mounting flange (63), and providing a lifting assembly (65). The lifting assembly comprising at least one crane device (68), a lifting rail (69) suspended from the at least one crane device (68), and a plurality of lifting clamps (70, 72), each lifting clamp being connected to the lifting rail (69). The method further comprises the steps of attaching the lifting clamps (70, 72) to the shear web (50), lifting the shear web (50) with the lifting assembly (65), lowering the shear web (50) into the first shell half (38) with the lifting assembly (65), bonding the first mounting flange (62) of the shear web (50) to an inner surface (66) of the first shell half (38), detaching the lifting clamps (70, 72) from the shear web (50), bringing the first and second shell halves (38, 36) together, and bonding the second mounting flange (63) of the shear web to the second shell half (36).
B29D 99/00 - Subject matter not provided for in other groups of this subclass
B66C 1/44 - Gripping members engaging only the external or internal surface of the articles and applying frictional forces
B66C 1/48 - Gripping members engaging only the external or internal surface of the articles and applying frictional forces to vertical edge portions of sheets, tubes, or like thin or thin-walled articles
F03D 13/10 - Assembly of wind motorsArrangements for erecting wind motors
89.
SYSTEMS AND METHODS FOR MANUFACTURING ROTOR BLADES
A method for manufacturing an article includes providing a plurality of flat sheets of fiber-reinforced polymer material. The method also includes forming the plurality of flat sheets of the fiber-reinforced polymer material into a plurality of curved sheets of the fiber-reinforced polymer material. Further, the method includes assembling the plurality of curved sheets of the fiber-reinforced polymer material in a tooling device to form an outer shape of the article. Moreover, the method includes securing each of the plurality of curved sheets of the fiber-reinforced polymer material together to form the article.
B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
A method for joining rotor blade segments of a rotor blade includes placing a first blade segment in an assembly fixture. The assembly fixture has an outer carrier and at least one bladder arranged with the outer carrier. The first blade segment has an adhesive applied at one or more locations. The method also includes arranging the first blade segment with a second blade segment at at least one joint using the assembly fixture with the adhesive positioned at the at least one joint. Further, the method includes inflating the at least one bladder to provide pressure to the at least one joint, wherein the pressure causes the adhesive to displace between the first and second blade segments at the at least one joint, thereby securing the first and second blade segments together at the at least one joint. Moreover, the method includes maintaining the pressure via the at least one inflated bladder to allow the adhesive to cure, thereby securing the first and second blade segments together.
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
A method for forming a structural tile for use in a composite panel includes providing a base plate of a compression mold assembly. The method also includes placing a grid structure mold of the compression mold assembly atop the base plate. The grid structure mold defines a cavity having a desired shape for a grid structure. Further, the method includes filling the cavity of the grid structure mold with a plurality of fragments of recycled fiber reinforced polymer material. Moreover, the method includes placing a cover plate of the compression mold assembly atop the grid structure mold to apply pressure to the grid structure mold. The method also includes applying heat to the cover plate to heat the plurality of fragments of recycled fiber reinforced polymer material such that the recycled fiber reinforced polymer material melts within the cavity. In addition, the method includes allowing the melted recycled fiber reinforced polymer material to cure to form the structural tile.
The present disclosure relates to a wind turbine blade part for a wind turbine blade, the wind turbine blade part comprising a metal mesh layer comprising a plurality of apertures, at least a first fibre- reinforced layer comprising a plurality of first electrically conductive fibres, and a plurality of second electrically conductive fibres. At least a number of the plurality of second electrically conductive fibres extend transversely through the plurality of apertures of the metal mesh layer so as to electrically connect the at least first fibre-reinforced layer with the metal mesh layer.
B29C 70/88 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
B32B 15/14 - Layered products essentially comprising metal next to a fibrous or filamentary layer
B29D 99/00 - Subject matter not provided for in other groups of this subclass
93.
BASE ELEMENTS AND EDGE ELEMENTS FOR WIND TURBINE BLADE SECTIONS
The present disclosure relates to a wind turbine blade section comprising a base and an edge element. The base is made of fiber reinforced composite material and comprises a suction surface, a pressure surface and at least one outer surface portion between the suction surface and the pressure surface and comprising a first base positioning feature. The edge element comprises an inner surface including a first edge positioning feature. The first edge positioning feature is configured to engage with the first base positioning feature and the edge element is configured to be joined to the suction surface and/or to the pressure surface of the base.
A rotor blade assembly includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint. Each of the first and second blade segments includes at least one shell member defining an airfoil surface and an internal support structure. The internal support structure of the first blade segment includes a beam structure extending lengthwise that structurally connects with the internal support structure of the second blade segment via a receiving section. The rotor blade assembly also includes a lightning protection system having a first conductive cage integrated with the beam structure and a second conductive cage integrated with the receiving section and electrically connected to the first conductive cage via an electrical connection. Further, the first and second conductive cages are grounded.
The present invention relates to a wind turbine blade component comprising a laminate structure comprising a non-woven fabric comprising a plurality of first fibres and a plurality of second fibres, wherein the plurality of first fibres are randomly oriented carbon fibres entangled with the plurality of second fibres which are of a type of fibres different from carbon fibres.
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
A prefabricated fairing for a wind turbine blade, the fairing extending along a fairing profile terminating at fairing lips and comprising exterior and interior fairing surfaces and a plurality of layers including fibre-reinforced layers and an exterior erosion-resistant elastomer layer forming a portion of the exterior fairing surface and being configured for defining the leading edge of the wind turbine blade, the fairing further comprises a cured first resin binding the erosion-resistant elastomer layer and the one or more fibre-reinforced layers together.
A method (1000, 1001) of repairing a spar cap (51, 52, 53) of a wind turbine blade (10, 108) includes removing (1100, 1101) a damaged portion (531d) of a fiber-reinforced plastic part (530, 531-33) of the spar cap (51, 52, 53) thereby forming a recess (531r) adjacent to a non-damaged portion (531n) of the fiber-reinforced plastic part, the non-damaged portion (531n) comprising electrically conductive fibers at least substantially orientated in a first direction (F). A bottom wall and a sidewall of the recess (531r) is covered (1200, 1210, 1220) a with an insulating material (534). A fiber-reinforced plastic filling (535, 535') is formed on the insulating material (534). The fiber-reinforced plastic filling (535, 535') is covered with an electrically conductive material (536) in electrical connection with the non-damaged portion (531n).
b) of the first shell half (38) and the lateral surface (62) of at least one of the shear webs (70), wherein the telescopic support member (80) comprises an actuator (82) for adjusting the length of the telescopic support member.
In a first aspect, a wind turbine blade torsion measuring system is provided. The wind turbine blade torsion measuring system comprises a shaft, a rotary sensor assembly and a connecting structure. The connecting structure is configured to movably connect the rotary sensor assembly to a blade structure to allow a relative movement between the rotary sensor assembly and the blade structure in a direction substantially parallel to the spanwise direction of the wind turbine blade. In a further aspect, a wind turbine blade comprising one or more wind turbine blade torsion measuring systems is provided. In yet a further aspect, a method of determining the torsional deformation of this wind turbine blade is provided. In yet a further aspect, a method for mounting the wind turbine blade torsion measuring system in a wind turbine blade is provided.
In a first aspect, a lubricant retention system for a pitch bearing of a wind turbine is provided. The lubricant retention system comprises a base and a plurality of annular seal segments to be connected to the base and to each other to form an annular seal assembly. The base is to be connected to a wind turbine. The plurality of annular seal segments comprises a distal end portion. When the lubricant retention system is mounted on the wind turbine blade, the distal end portion extends toward the second bearing component for defining a chamber for retaining lubricant from the pitch bearing. Furthermore, the plurality of annular seal segments comprises a releasable annular seal segment to be releasably connected to another of the annular seal segments. In a further aspect, a wind turbine blade comprising a lubricant retention system according to any of the examples herein disclosed is provided. In a further aspect, a method for mounting a lubricant retention system for a pitch bearing in a wind turbine blade is provided.
