Method and apparatus for generating turbulence structures on the surface of wind turbine blades

Abstract

This application discloses a method and apparatus for generating a turbulence structure on the surface of a wind turbine blade. The method includes: spraying a curable adhesive onto a portion of the blade surface using a spraying device; determining the spatial characteristics of the adhesive; comparing the spatial characteristics of the adhesive with the spatial characteristics of a preset target turbulence structure; obtaining a comparison result; and, in response to the comparison result indicating that the difference between the spatial characteristics of the adhesive and the spatial characteristics of the target turbulence structure meets preset conditions, ending the spraying process. According to this application, a turbulence structure that meets the actual turbulence requirements of the blade can be generated by spraying an adhesive onto the blade using a spraying device. This method is low-cost and highly efficient. Moreover, the generated turbulence structure meets the actual turbulence requirements of the blade, resulting in good turbulence effects. Furthermore, the generated turbulence structure is a solid protrusion attached to the blade surface, which avoids problems such as entanglement and jamming during removal, making it easy to remove.

Description

Technical Field

[0001] This application belongs to the field of wind power generation technology, and in particular relates to a method and apparatus for generating a turbulence structure on the surface of a wind turbine blade. Background Technology

[0002] Wind turbines generate electricity by absorbing wind energy through their rotors to power a generator. The blades are the core working components of a wind turbine. Between blade manufacturing and grid connection, under specific combinations of wind direction and speed, vortex-induced vibrations can occur. Because vortex-induced vibrations cannot be eliminated by yaw or pitch adjustments in this scenario, they can persist for extended periods. This vibration leads to fatigue loads, causing cumulative damage to the blades and other components of the turbine, thus shortening the turbine's operational lifespan after grid connection. As wind turbines evolve towards larger rotors and longer blades, blade flexibility is continuously decreasing, increasing the probability and risk of vortex-induced vibrations.

[0003] In related technologies, in order to reduce vortex-induced vibration of blades before grid connection, a common solution is to cover the blades with temporary netting or turbulence-inducing devices. For example, CN113685311A discloses a vibration-damping and turbulence-inducing device for wind turbine blades, which involves fitting two layers of netting on the blade surface and adding turbulence-inducing strips between the netting.

[0004] While the above solutions can effectively turbulence and vibration damping, they have several shortcomings in practical application. For example, on-site installation of the mesh sleeve is inefficient, requiring it to be fitted before blade hoisting. Due to the pre-bending and chordal changes of the blades, fitting the mesh sleeve requires multiple people, and reliable fixation is necessary after fitting, resulting in a lengthy operation time. Furthermore, the varying blade structures, vortex resistance requirements, and hoisting processes among different turbine models make the mesh sleeve solution difficult to adapt to, significantly increasing management costs. If the blade mesh sleeve is fixed to the hub, pitch control cannot be performed before removing the mesh sleeve, increasing the limitations of the unit's shutdown status. Without reliable fixation, the mesh sleeve is prone to detachment. Moreover, as a flexible structure, the mesh sleeve is susceptible to interference, entanglement, or jamming with aerodynamic accessories on the blade surface during on-site removal after hoisting, leading to removal failure or increased construction difficulty. It could even cause the removed portion of the mesh sleeve to become uncontrollably drawn into the turbine's mechanism, causing overall turbine malfunction and further risks. Summary of the Invention

[0005] This application provides a method and apparatus for generating a turbulence structure on the surface of a wind turbine blade. Before the blade leaves the factory, an adhesive material is sprayed onto the blade using a spraying device to generate a turbulence structure that meets the actual turbulence requirements of the blade. This method is low-cost and highly efficient. Moreover, the generated turbulence structure meets the actual turbulence requirements of the blade and has a good turbulence effect. In addition, the generated turbulence structure is a solid protrusion attached to the blade surface, which will not cause problems such as entanglement or jamming during removal. It is easy to remove.

[0006] In a first aspect, embodiments of this application provide a method for generating a turbulence structure on the surface of a wind turbine blade, comprising:

[0007] A curable adhesive is sprayed onto a portion of the blade surface using a spraying device.

[0008] Determine the spatial characteristics of the attachment sites;

[0009] The spatial characteristics of the attached material are compared with the spatial characteristics of the preset target disturbance structure to obtain the comparison results;

[0010] The spraying process ends when the difference between the spatial characteristics of the attachment and the spatial characteristics of the target turbulence structure meets the preset conditions, as indicated by the comparison results.

[0011] As one possible implementation, the method also includes:

[0012] In response to the comparison results indicating that the difference between the spatial characteristics of the attached object and the spatial characteristics of the target disturbance structure does not meet the preset conditions, the defect location of the attachable object is determined;

[0013] In response to the comparison results indicating that the difference between the spatial characteristics of the attachment and the spatial characteristics of the target turbulence structure meets the preset conditions, the attachment that has been cured on the blade is identified as the turbulence structure of the blade, and the spraying is terminated.

[0014] As one possible implementation, the shape of the adhesive sprayed on the blade is a spiral along a spiral path that surrounds the blade and extends along the length of the blade.

[0015] As one possible implementation, the spraying device includes a nozzle that moves along a track that surrounds the blades along a helical path and extends along the length of the blades;

[0016] A curable, adherent material is sprayed onto a portion of the blade surface using a spraying device, including:

[0017] A curable material is sprayed onto a portion of the blade surface through a nozzle as it moves along the track.

[0018] As one possible approach, the spatial characteristics of the attachment site are determined, including:

[0019] Acquire at least one image of the blades coated with an adhesive.

[0020] Construct a first-dimensional model of a leaf coated with an adhesive based on at least one image;

[0021] Based on the first-dimensional model and the second-dimensional model, the spatial characteristics of the attachments of the objects to be attached are obtained;

[0022] The second dimension model is the dimension model of the blade without any coating.

[0023] As one possible implementation, acquiring at least one image of the blade coated with an adhesive material includes:

[0024] At least one image is captured at at least one location on a blade coated with an adhesive material by an image acquisition device that moves along the track.

[0025] The track surrounds the blade along a spiral path and extends along the length of the blade.

[0026] As one possible implementation, before spraying a curable adhesive onto a portion of the blade surface using a spraying device, the method further includes:

[0027] Glass fibers are wound around the surface of the blade along a spiral path.

[0028] As one possible implementation, the components of the adhesive include glass fibers.

[0029] As one possible approach, the adherend can be a foamed material, the components of which include isocyanate, polyol, catalyst, foaming agent, foam stabilizer, carbon black and glass fiber.

[0030] As one possible implementation, the weight ratio of components in the foamed material includes:

[0031] Isocyanate 45%–52%, polyol 45%–41%, foaming agent 3%–4%, foam stabilizer 1%–2%, carbon black 1%–2%, glass fiber 2%–4%.

[0032] As one possible approach, the cross-sectional shape of the adhesive sprayed onto the blade is roughly triangular.

[0033] Secondly, embodiments of this application provide a device for generating a turbulence structure on the surface of a wind turbine blade, comprising:

[0034] Fixtures used to secure blades;

[0035] A spraying device used to spray a curable, adherent material onto a portion of the blade surface.

[0036] As one possible implementation, the device also includes:

[0037] The track, which encircles the blade along a spiral path and extends along the length of the blade;

[0038] The spraying device includes a spray head that moves along a track.

[0039] As one possible implementation, the device also includes:

[0040] An image acquisition device for capturing at least one image of at least one location on a blade.

[0041] As one possible implementation, the device also includes:

[0042] The track, which encircles the blade along a spiral path and extends along the length of the blade;

[0043] The image acquisition device moves along the track.

[0044] Thirdly, embodiments of this application provide an electronic device including a processor and a memory, wherein the memory stores programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement the steps of the method described in the first aspect.

[0045] Fourthly, embodiments of this application provide a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect.

[0046] Fifthly, embodiments of this application provide a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the method as described in the first aspect.

[0047] In a sixth aspect, embodiments of this application provide a computer program product stored in a storage medium, which is executed by at least one processor to implement the method described in the first aspect.

[0048] The method and apparatus for generating a turbulence structure on the surface of a wind turbine blade according to embodiments of this application involve spraying a curable adhesive onto a portion of the blade surface using a spraying device. The spatial characteristics of the adhesive are determined, and these characteristics are compared with preset target turbulence structure spatial characteristics to obtain a comparison result. In response to the comparison result indicating that the difference between the spatial characteristics of the adhesive and the target turbulence structure spatial characteristics meets preset conditions, the spraying process ends. According to this application, a turbulence structure that meets the actual turbulence requirements of the blade can be generated by spraying an adhesive onto the blade before it leaves the factory. This method is low-cost and highly efficient. Furthermore, the generated turbulence structure meets the actual turbulence requirements of the blade, resulting in good turbulence effects. In addition, the generated turbulence structure is a solid protrusion attached to the blade surface, which avoids problems such as entanglement and jamming during removal, making removal easy and simple. Attached Figure Description

[0049] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a schematic flowchart of a method for generating a turbulence structure on the surface of a wind turbine blade, provided in some embodiments of this application.

[0051] Figure 2 These are schematic diagrams of the turbulence structures provided in some embodiments of this application;

[0052] Figure 3 This is a schematic flowchart of the turbulence structure provided in some embodiments of this application;

[0053] Figure 4 These are schematic diagrams of the turbulence structures provided in some embodiments of this application;

[0054] Figure 5 This is a schematic flowchart of a method for generating a turbulence structure on the surface of a wind turbine blade, provided in some embodiments of this application.

[0055] Figure 6 This is a schematic diagram of the structure of the wind turbine blade surface turbulence structure generation device provided in some embodiments of this application;

[0056] Figure 7 These are schematic diagrams of the structure of electronic devices provided in some embodiments of this application. Detailed Implementation

[0057] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0058] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0059] To address the problems of the prior art, this application provides a method and apparatus for generating a turbulence structure on the surface of a wind turbine blade. The method for generating a turbulence structure on the surface of a wind turbine blade provided in this application is described below.

[0060] The wind turbine blade surface turbulence structure generation method provided in this application is used to generate turbulence structures on the blade surface before the blade leaves the factory. The generated turbulence structures can disrupt the flow field around the blade airfoil in scenarios such as blade transportation, storage yard, hoisting process, and before the unit is powered on after hoisting, thereby avoiding vortex-induced vibration of the blade in the air flow field.

[0061] It should be noted that the method for generating the surface turbulence structure of the wind turbine blade provided in this application embodiment can be executed by the wind turbine blade surface turbulence structure generating device. The following description will take the execution of the wind turbine blade surface turbulence structure generating device by the wind turbine blade surface turbulence structure generating device as an example of the wind turbine blade surface turbulence structure generating method provided in this application embodiment.

[0062] See Figure 1 This is a schematic flowchart of the method for generating a turbulence structure on the surface of a wind turbine blade provided in an embodiment of this application. Figure 1 As shown, the method includes the following steps S110-S140, which will be described in detail below.

[0063] S110. Using a spraying device, an adhesive that can be cured and molded is sprayed onto a portion of the blade surface.

[0064] In some embodiments of this application, a spraying process is added before the blades leave the factory. A curable, adherent material is sprayed onto a portion of the blade surface using a spraying device according to certain spraying rules. After curing, the adherent material forms discrete solid protrusions on the blade surface. These solid protrusions alter the aerodynamic shape of the blade, preventing periodic vortex-induced excitation in flow fields of various wind speeds and angles, thereby reducing vortex-induced vibration of the blade. The spraying rules can be set according to actual needs, and this embodiment does not impose specific limitations on them.

[0065] In some embodiments of this application, the spraying apparatus includes a spraying assembly and a container. The container stores an adherable substance, and the spraying assembly is connected to the container for spraying the adherable substance from the container. The spraying assembly includes one or more nozzles capable of spraying liquid, paste, or foam substances.

[0066] In some embodiments of this application, the spraying assembly includes a movable nozzle. The nozzle rules include controlling the nozzle to move along a predetermined path and spraying a predetermined dosage of an adhesive agent onto multiple locations on the blade during the movement. Both the path and the predetermined dosage can be set according to actual needs, and the parameters of the path can be adjusted as needed.

[0067] In some embodiments of this application, the movement path is a helical path extending along the length of the blade and surrounding it. Parameters such as the pitch and helix angle of the helical path can be adjusted according to actual needs. Based on this, when the spraying device sprays an adhesive onto the blade, it can control the nozzle to move around the blade along a set helical path, spraying the adhesive onto different positions on the blade during the movement. This can create a... Figure 2 As shown, the turbulence structure 210 spirals around the blade 200.

[0068] In other embodiments of this application, the spraying assembly includes at least one set of nozzle arrays, each nozzle array comprising multiple nozzles, each nozzle being connected to a container, and the multiple nozzles simultaneously spraying an adherable material outwards. The relative positions of the nozzles in the nozzle array can be adjusted to meet the construction requirements of the blade spoiler structure. The spraying rules include controlling the nozzle array along the blade length direction to spray an array of adherable materials onto the blade surface. This allows for the formation of a... Figure 3 As shown, multiple turbulence structure blocks 310 are arranged in an array on the surface of the blade 300, and the multiple turbulence structure blocks 310 together constitute the turbulence structure of the blade 300.

[0069] Understandable, Figure 2 and Figure 3 The turbulence structures shown are merely examples and do not constitute a limitation on turbulence structures.

[0070] In some embodiments of this application, the multiple nozzles in the nozzle array can be arranged in a straight line, matrix, or ring pattern. Straight line arrangement includes, but is not limited to, equidistant straight line arrangement and non-equidistant straight line arrangement. Equidistant straight line arrangement refers to multiple nozzles arranged at equal intervals along a straight line; this arrangement is simple and regular. Non-equidistant straight line arrangement refers to multiple nozzles on a straight line, but with unequal spacing. This arrangement allows for the design of spacing between different nozzles according to specific spraying requirements, enabling the use of complex blade shapes. Matrix arrangement includes, but is not limited to, square matrix arrangement, rectangular matrix arrangement, and staggered matrix arrangement. A square matrix arrangement refers to multiple nozzles arranged in a square matrix shape, meaning the number of nozzles in each row and column is equal, and the row and column spacing between nozzles is the same. This arrangement can provide a more uniform coverage area and is suitable for spraying large planar areas. Rectangular matrix arrangement refers to multiple nozzles arranged in a rectangular matrix, with varying row and column spacing. This method offers greater flexibility, allowing for adjustments to the row and column spacing to accommodate different shapes and sizes of spraying areas. Staggered matrix arrangement involves multiple nozzles arranged in an alternating pattern within a matrix, with adjacent rows of nozzles offset from each other. This arrangement allows for complementary coverage areas between nozzles. Annular arrangement includes, but is not limited to, single-ring and multi-ring arrangements. A single-ring arrangement involves multiple nozzles arranged at equal angles around a central point to form a ring. A multi-ring arrangement involves multiple nozzles distributed across multiple concentric rings, with the number of nozzles on each ring potentially being the same or different. Annular arrangements can be used to spray adhering materials around blades.

[0071] In some embodiments of this application, the adherend is a substance with properties such as rapid curing, sufficient adhesion strength, water resistance, and resistance to sunlight. The form of the adherend can be a liquid, paste, foam, etc., that can be sprayed through a nozzle.

[0072] In some embodiments of this application, to facilitate the removal of the attachments after the blade is hoisted, the material of the attachments can be at least one of the following: soluble materials, biodegradable materials, and hot-melt materials. Exemplarily, soluble materials include, but are not limited to, foaming materials such as polyurethane foam and EVA (vinyl acetate copolymer) foam, UV-curable adhesives, and water-soluble adhesives. Biodegradable materials include, but are not limited to, polylactic acid and polyhydroxyalkanoates. Hot-melt materials include, but are not limited to, hot-melt adhesives and low-melting-point waxes.

[0073] S120. Determine the spatial characteristics of the attachments of the objects to be attached.

[0074] In some embodiments of this application, after controlling the spraying device to spray an adhesive onto the surface of the blade according to certain spraying rules, and waiting for the adhesive to cure, the spatial characteristics of the cured adhesive on the blade are determined as the adhesive spatial characteristics. The adhesive spatial characteristics are used to describe the overall spatial structure of the adhesive sprayed on the blade and the interrelationships of the adhesives in space. For example, the adhesive spatial characteristics can be the spatial topology of the cured adhesive on the blade.

[0075] In some embodiments of this application, the curing method of the adherable material can be determined based on the material of the adherable material. For example, if the material of the adherable material is a foam material, the adherable material sprayed on the blade can be cured by allowing it to stand.

[0076] S130. Compare the spatial characteristics of the attached material with the spatial characteristics of the preset target disturbance structure to obtain the comparison results.

[0077] In some embodiments of this application, the target turbulence structure spatial features are spatial features of a turbulence structure designed to meet the turbulence requirements of the blade based on the application scenario of the currently sprayed blade. For example, the target turbulence structure spatial features can be the spatial topology of a turbulence structure that meets the turbulence requirements of the blade. By comparing the attachment spatial features with the target turbulence structure spatial features, it can be determined whether the attachable material sprayed on the blade meets the turbulence requirements of the blade.

[0078] In some embodiments of this application, after obtaining the spatial characteristics of the attachment, the spatial characteristics of the attachment are compared with the spatial characteristics of the target disturbance structure to determine the difference between the two. A comparison result is obtained by determining whether the difference meets preset conditions. The comparison result indicates that the difference between the spatial characteristics of the attachment and the spatial characteristics of the target disturbance structure meets preset conditions. These preset conditions can be set according to actual needs.

[0079] In some embodiments of this application, the preset conditions include, but are not limited to, the difference between the spatial characteristics of the attachment and the spatial characteristics of the target disturbance structure being less than a set threshold.

[0080] S140. In response to the comparison result indicating that the difference between the spatial characteristics of the attachment and the spatial characteristics of the target turbulence structure meets the preset conditions, the spraying ends.

[0081] In some embodiments of this application, when the comparison results indicate that the difference between the spatial characteristics of the attachment and the spatial characteristics of the target turbulence structure meets the preset conditions, it is determined that the attachment sprayed on the blade surface meets the turbulence requirements of the blade and can play a turbulence role as a turbulence structure of the blade. At this time, the attachment solidified on the blade is determined as the turbulence structure of the blade and the spraying is ended.

[0082] The method for generating a turbulence structure on the surface of a wind turbine blade provided in this application involves spraying a curable adhesive onto a portion of the blade surface using a spraying device. The spatial characteristics of the adhesive are determined, and these characteristics are compared with the spatial characteristics of a preset target turbulence structure. A comparison result is obtained, and in response to the comparison result indicating that the difference between the spatial characteristics of the adhesive and the spatial characteristics of the target turbulence structure meets preset conditions, the curable adhesive on the blade is identified as the turbulence structure of the blade. According to this application, a turbulence structure that meets the actual turbulence requirements of the blade can be generated by spraying an adhesive onto the blade using a spraying device before the blade leaves the factory. This method is low-cost and highly efficient. Moreover, the generated turbulence structure meets the actual turbulence requirements of the blade, resulting in good turbulence effects. Furthermore, the generated turbulence structure is a solid protrusion attached to the blade surface, which avoids problems such as entanglement and jamming during removal, making removal easy and simple.

[0083] In addition, the method for generating a turbulence structure on the surface of a wind turbine blade provided in this application embodiment can add turbulence structures to the blades in batches before the blades leave the factory.

[0084] In some embodiments, the cross-sectional shape of the adherable material sprayed onto the blade surface is approximately triangular, so that the cross-section of the final turbulence structure formed on the blade is also approximately triangular. For example, see... Figure 4 The cross-section of the turbulence structure 410, which is obtained by curing the adhesive sprayed on the surface of the blade 400, is triangular.

[0085] When fluid flows through a triangular turbulence structure, the sharp angles cause the fluid to rapidly separate at the corners, generating strong vortices. These vortices effectively disrupt the laminar flow state of the fluid, thereby altering the pressure distribution on the blade surface, reducing vortex-induced vibration, and improving blade stability. Furthermore, the triangle is a relatively stable geometric shape, and when used as a turbulence structure, it maintains good structural integrity, especially when subjected to external forces such as fluid impact.

[0086] In other embodiments, the cross-sectional shape of the adhesive sprayed onto the blade surface may also be other shapes, such as a matrix, a square, a semicircle, a cone, etc.

[0087] In some embodiments, the adhesive sprayed on the blade can be distributed over the entire blade, that is, the adhesive can be discretely distributed over the entire surface of the blade.

[0088] In other embodiments, for cost reasons, the adhesive sprayed on the blade can be distributed over a range from the blade tip to a designated location on the blade, with the adhesive discretely distributed within this range. Here, in order to reduce the amount of adhesive used while ensuring that the adhesive sprayed on the blade can have a turbulence-disrupting effect, the distance between the designated location and the blade root can be between one-third and two-thirds of the blade length.

[0089] In some embodiments, before spraying an adhesive onto the blade surface using a spraying device, the blade is first transferred to the station where the spraying device is located and fixed to a fixture at the station to facilitate spraying, wherein the fixture is used to fix the blade.

[0090] In some embodiments of this application, when spraying the adherable material onto the blades, both the windward and leeward sides of the blades are sprayed. Therefore, to facilitate spraying, the fixing fixture can be a fixture that fixes the blade root, allowing the blade to float horizontally. This facilitates the spraying device spraying the adherable material onto all surfaces of the blade. Here, "blade horizontal" means that the blade's central axis, i.e., the line connecting the blade root to the blade tip, is parallel to the horizontal plane.

[0091] In some embodiments of this application, considering that the shape of the blade is usually a curved surface with a certain curvature on the windward side and the shape of the leeward side is relatively flatter than that of the windward side, in order to keep the blade as horizontal as possible under the fixation of the fixture, the blade can be horizontally fixed to the fixture by the blade root, and the PS surface of the blade, that is, the windward side, is kept facing upward.

[0092] In some embodiments, the adhesive sprayed onto the blade has a spiral shape that surrounds the blade along a spiral path and extends along the length of the blade, thus ultimately creating a coating on the blade that resembles a spiral. Figure 2 As shown, the turbulence structure is a spiral that surrounds the blade.

[0093] The spiral-shaped turbulence structure can disrupt the large-scale, high-intensity eddies that the fluid might otherwise form, transforming them into multiple smaller and lower-intensity eddies. This reduces the unstable force of the eddies on the blades, thereby reducing the vibration amplitude and frequency of the blades, lowering the risk of fatigue damage, and extending the blades' service life.

[0094] In some embodiments, the spraying apparatus includes a movable nozzle. In step S110, the nozzle is controlled to move along a predetermined path, and a predetermined amount of an adhesive is sprayed onto multiple locations on the blade during the movement. To ensure the nozzle moves accurately along the predetermined path, a track can be erected around the blade based on the predetermined path before step S110. Thus, in step S110, the nozzle can be controlled to move along the track, and an adhesive that can be cured and molded is sprayed onto a portion of the blade surface during the movement along the track. In some embodiments of this application, in order to form such a... Figure 2 The turbulence structure shown has a designed movement path that is a spiral path surrounding the blade and extending along the blade's length. A track, erected based on this movement path, also surrounds the blade along this spiral path and extends along the blade's length. The central axis of the track can coincide with the central axis of the blade.

[0095] In some embodiments of this application, the path parameters of the set movement path can be adjusted according to the turbulence requirements of the blade. The path parameters can be different for blades of different shapes or blades for different application scenarios. For example, if the set movement path is a helical path, the pitch, helix angle, and other parameters of the helical path can be adjusted according to the turbulence requirements of the blade.

[0096] In some embodiments of this application, to adapt the track to various path parameters, a modular track can be used. A modular track is composed of multiple track units assembled together. These track units have standardized shapes and interfaces for quick and accurate assembly. Each unit can be straight, curved, or a module with special functions, such as branch lines, uphill sections, or downhill sections. The track units are connected by connecting components, including but not limited to bolts, clips, and mortise and tenon joints. The modular track allows for flexible changes in length, shape, and layout according to actual needs. When path parameters are adjusted, only the corresponding track units need to be added, removed, or replaced. This flexibility enables the track to adapt to various path parameters.

[0097] In some embodiments of this application, the track can be supported by a support structure. This support structure includes, but is not limited to, a steel truss, and the track can be supported at multiple points on the support structure.

[0098] In some embodiments, image processing techniques may be used to determine the spatial characteristics of the attachable object. See also Figure 5 In step S120 above, the spatial characteristics of the attachment of the attachable object can be determined through the following steps S510-S530.

[0099] S510. Obtain at least one image of the blades coated with an adhesive.

[0100] In some embodiments of this application, after the adhesible material sprayed on the blade has cured, at least one image of the blade is captured by an image acquisition device, such as an industrial camera or a webcam.

[0101] In some embodiments of this application, the adherable material is attached to multiple locations on the blade surface. In order to more accurately determine the spatial characteristics of the adherable material, multiple images of multiple locations on the blade surface can be captured by an image acquisition device using multiple shooting angles.

[0102] S520. Based on at least one image, construct a first-dimensional model of the blade coated with an adhesive.

[0103] In some embodiments of this application, a first-dimensional model of a blade coated with an adhesive is constructed by an image processor based on at least one image obtained in step S510 above.

[0104] In some embodiments of this application, the adherable material is attached to multiple locations on the blade surface, for example, such as Figure 2 As shown, the attachable material is arranged around the blade. Therefore, in order to more accurately determine the spatial characteristics of the attachable material, a three-dimensional model of the blade coated with the attachable material can be constructed using an image processor, and this three-dimensional model can be used as the first-dimensional model of the blade.

[0105] S530. Based on the first-dimensional model and the second-dimensional model, obtain the spatial characteristics of the attachments of the objects to be attached.

[0106] Here, the second-dimensional model is the dimensional model of the blade without any coating.

[0107] In some embodiments of this application, the second-dimensional model of the blade can be constructed during blade design or production and pre-stored in a designated location, so that the second-dimensional model can be directly obtained from the designated location in step S530.

[0108] In another embodiment of this application, the second-dimensional model of the blade can be constructed based on the image of the blade after the blade has been moved to the spraying station and before step S110 described above. After the blade has been moved to the spraying station, at least one image of the blade is captured, and the second-dimensional model of the blade is constructed based on the at least one image of the blade using an image processor.

[0109] In some embodiments of this application, in order to facilitate obtaining the attachment space characteristics of the attachable object based on the first dimension model and the second dimension model, the dimension of the second dimension model is consistent with the dimension of the first dimension model. That is, if the first dimension model is a two-dimensional model, then the second dimension model is also a two-dimensional model; if the first dimension model is a three-dimensional model, then the second dimension model is also a three-dimensional model.

[0110] In some embodiments of this application, the spatial features of the adhesive that can be applied to the blade are obtained by subtracting the first-dimensional model from the second-dimensional model using an image processor.

[0111] Using the above method, the spatial characteristics of the adhesive that can be sprayed on the blade can be determined based on the image of the blade.

[0112] In some embodiments, when constructing the first-dimensional model and the second-dimensional model, the image acquisition device can be controlled to move along a track erected around the blade. The image acquisition device moving along the track can acquire multiple images of multiple locations on the blade. This track can be the same track used for the nozzle movement when spraying an adhesive, thus enabling track reuse, reducing costs, and improving efficiency.

[0113] In some embodiments of this application, the track is a track that surrounds the blade along a set spiral path and extends along the length direction of the blade. Based on this, when acquiring an image of a blade coated with an adhesive or an image of a blade without an adhesive, the image acquisition device can be controlled to move along the track, and at least one image of at least one position on the blade can be captured by the image acquisition device moving along the track.

[0114] The above method allows for the acquisition of images of the blades from multiple angles.

[0115] In some embodiments, after step S140 described above, the following steps may also be performed:

[0116] In response to the comparison results indicating that the difference between the spatial characteristics of the attachment and the spatial characteristics of the target disturbance structure does not meet the preset conditions, the defect location of the attachment is determined.

[0117] In some embodiments of this application, if the difference between the spatial characteristics of the attachment and the spatial characteristics of the target turbulence structure does not meet preset conditions, it indicates that the currently sprayed attachment on the blade does not meet the turbulence requirements of the blade and cannot achieve turbulence or has a poor turbulence effect. In this case, in order to improve the turbulence effect of the final turbulence structure generated on the blade, the defect location of the attachment on the blade is determined based on the difference between the spatial characteristics of the attachment and the spatial characteristics of the target turbulence structure. This allows the attachment sprayed on the blade to be repaired and adjusted based on the defect location, so that the difference between the spatial characteristics of the attachment and the spatial characteristics of the target turbulence structure meets the preset conditions, thereby forming a turbulence structure on the blade that meets the turbulence requirements.

[0118] In some embodiments of this application, the defect location of the attachable object can be a location where the spatial characteristics of the attachable object are inconsistent with the spatial characteristics of the target disturbance structure.

[0119] In some embodiments of this application, after determining the location of a defect in the attachable material, the location can be communicated to maintenance personnel via screen display, email notification, voice broadcast, or other means, allowing maintenance personnel to manually adjust the defect location based on it.

[0120] In some embodiments of this application, after determining the location of the defect in the adherend, the spraying device can be automatically controlled to repair the defect location.

[0121] Through the above embodiments, the defect location of the adhering material can be determined, which facilitates the repair of the adhering material on the blade, thereby obtaining a turbulence structure that meets the turbulence requirements of the blade.

[0122] In some embodiments, the strength of the perturbation structure can be improved by adding glass fibers. Glass fibers have high strength and modulus, which makes them effective against external forces such as tension and bending. When the perturbation structure with added glass fibers is subjected to external forces, the glass fibers can bear part of the load, thereby preventing excessive deformation of the perturbation structure.

[0123] In some embodiments of this application, when the adhesive sprayed onto the blade has a spiral shape that surrounds the blade along a spiral path and extends along the length of the blade, the following steps can be performed before step 110 above:

[0124] Glass fibers are wound around the surface of the blade along a spiral path. In this way, when an adhesive is sprayed onto the blade, the sprayed adhesive covers the glass fibers. After the adhesive cures, a turbulence structure containing the adhesive and glass fibers can be obtained, thus improving the strength of the turbulence structure.

[0125] In some other embodiments of this application, the component of the attachable material includes glass fiber. Thus, a glass fiber-containing turbulence structure can be formed simply by spraying the attachable material onto the blade. This method is not limited by the shape of the turbulence structure and can be adapted to turbulence structures of any shape.

[0126] In some embodiments of this application, to reduce nozzle clogging of the spray device caused by glass fiber entanglement, short glass fibers can be used as a component added to the adherend. Although short glass fibers are in a short fiber form, they still retain the high strength characteristics of glass fibers, providing good reinforcement to the matrix material and effectively improving the tensile, compressive, and other mechanical properties of the material.

[0127] In some embodiments, the adherend is a foamed material, the components of which include isocyanate, polyol, catalyst, foaming agent, foam stabilizer, carbon black, and glass fiber. The catalyst includes, but is not limited to, SICAT-03 and organotin compounds. The foaming agent can be a physical or chemical foaming agent. Physical foaming agents include inorganic and organic types. Inorganic physical foaming agents include, but are not limited to, air, carbon dioxide, nitrogen, water, and aliphatic hydrocarbon foaming agents. Aliphatic hydrocarbon foaming agents include, but are not limited to, butane, cyclopentane, hexane, and octane. Organic physical foaming agents include, but are not limited to, chlorinated hydrocarbons such as dichloroethane and chlorofluorocarbons such as Freon. Chemical foaming agents include both inorganic and organic types. Inorganic chemical foaming agents are further divided into reactive and thermally decomposable types. Reactive inorganic chemical foaming agents include, but are not limited to, sodium bicarbonate + acid, hydrogen peroxide + yeast, zinc powder + acid, etc. Thermally decomposable inorganic chemical foaming agents include, but are not limited to, bicarbonates, carbonates, hydrides, etc. Organic chemical foaming agents also include reactive and thermally decomposable types. Reactive organic chemical foaming agents include, but are not limited to, isocyanate compounds, etc. Thermally decomposable organic chemical foaming agents include, but are not limited to, azo compounds, hydrazine derivatives, urea-amino compounds, azido compounds, nitroso compounds, triazole compounds, etc. Foam stabilizers include, but are not limited to, silicone foam stabilizers, etc.

[0128] Foamed materials have the advantages of low density, light weight, and high strength. Using foamed materials as an attachment material can significantly reduce the weight of the final spoiler structure while improving its strength and stability. In addition, by adding carbon black, the spoiler structure can be distinguished from the blades, making it easier to identify when the spoiler structure is removed. Furthermore, it can prevent the spoiler structure from aging due to ultraviolet radiation during service.

[0129] In some embodiments, the weight ratio of components in the foam material that serves as an adherent material includes:

[0130] The composition of the catalyst is as follows: isocyanate 45%–52%, polyol 45%–41%, blowing agent 3%–4%, foam stabilizer 1%–2%, carbon black 1%–2%, and glass fiber 2%–4%. The weight ratio of the catalyst can be determined according to the actual situation.

[0131] The foamed material prepared using the above formula and proportion has good stability and weather resistance after curing, and also has good mechanical strength. It can meet the needs of blade turbulence scenarios, and the process is simple, easy to implement, and low in cost.

[0132] In some embodiments, in order to reduce damage to the blades from adhering materials, the following steps may be performed before step S110:

[0133] A protective material is applied to the surface of the blade to isolate it from any adhering material.

[0134] In some embodiments of this application, protective materials include, but are not limited to, protective sleeves, insulating films, etc.

[0135] In some embodiments of this application, the separator is an adhesive-free film with a certain tensile strength.

[0136] The above solution can isolate the blades from adhering substances by using protective materials, preventing the adhering substances sprayed on the blades from directly contacting the blade surface, thereby reducing damage to the blades.

[0137] It is understandable that if the step of winding glass fiber along the spiral path onto the surface of the blade needs to be performed before the above step S110, then the above step of setting protective material on the blade surface shall be performed before the step of winding glass fiber along the spiral path onto the surface of the blade.

[0138] In some embodiments, in order to facilitate the accurate identification of the turbulence structure on the blade when removing the turbulence structure on the blade later, the adhering material may contain pigment. The color of the pigment can be set according to the actual situation. For example, the color can be a bright color that is different from the color of the blade, such as red, purple, or blue.

[0139] Adding pigments to the substrate can distinguish the color of the turbulence structure from the color of the blade, making it easier to identify the turbulence structure on the blade.

[0140] Based on the method for generating a turbulence structure on the surface of a wind turbine blade provided in the above embodiments, this application also provides a specific implementation of the device for generating a turbulence structure on the surface of a wind turbine blade. Please refer to the following embodiments.

[0141] See Figure 6 This is a schematic diagram of the wind turbine blade surface turbulence structure generation device provided in the embodiments of this application, as shown below. Figure 6As shown, the device 600 includes:

[0142] Fixture 610 is used to fix the blades;

[0143] The spraying device 620 is used to spray a curable adhesive onto a portion of the blade surface.

[0144] In some embodiments of this application, the fixing fixture 610 is a fixture for fixing the blade root so that the blade is horizontally suspended.

[0145] In some embodiments of this application, the spraying apparatus 620 includes a spraying assembly and a container. The container stores an adherable substance, and the spraying assembly is connected to the container for spraying the adherable substance from the container. The spraying assembly includes one or more nozzles capable of spraying liquid, paste, or foam substances.

[0146] In some embodiments, the device 600 further includes:

[0147] The track is set up around the blade based on a pre-defined movement path.

[0148] In some embodiments of this application, device 600 further includes:

[0149] Support structure used to support the track.

[0150] In some embodiments of this application, the track surrounds the blade along a predetermined helical path and extends along the length of the blade.

[0151] Accordingly, the spraying device 620 includes a nozzle that moves along a track, so that the spraying device 620 can spray an adherable material onto a portion of the blade surface as the nozzle moves along the track.

[0152] In some embodiments, the device 600 further includes:

[0153] An image acquisition device for taking at least one image of at least one location on a blade before or after spraying an adhesive onto the blade.

[0154] In some embodiments, the image acquisition device moves along a track, so that the image acquisition device can capture at least one image of at least one location on the blade during the movement along the track.

[0155] The wind turbine blade surface turbulence structure generation device provided in this application embodiment can realize all the processes implemented in any of the above-described wind turbine blade surface turbulence structure generation method embodiments. To avoid repetition, it will not be described again here.

[0156] Figure 7 A schematic diagram of the hardware structure of the electronic device provided in an embodiment of this application is shown.

[0157] The electronic device may include a processor 701 and a memory 702 storing computer program instructions.

[0158] Specifically, the processor 701 may include a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits that can be configured to implement the embodiments of this application.

[0159] Memory 702 may include mass storage for data or instructions. For example, and not limitingly, memory 702 may include a hard disk drive (HDD), floppy disk drive, flash memory, optical disk, magneto-optical disk, magnetic tape, or Universal Serial Bus (USB) drive, or a combination of two or more of these. Where appropriate, memory 702 may include removable or non-removable (or fixed) media. Where appropriate, memory 702 may be internal or external to the integrated gateway disaster recovery device. In a particular embodiment, memory 702 is non-volatile solid-state memory. Memory 702 may include read-only memory (ROM), random access memory (RAM), disk storage media devices, optical storage media devices, flash memory devices, electrical, optical, or other physical / tangible memory storage devices. Therefore, typically, memory 702 includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it can perform the operations described in any of the wind turbine blade surface turbulence structure generation methods in the above embodiments.

[0160] The processor 701 reads and executes computer program instructions stored in the memory 702 to implement any of the methods for generating the surface turbulence structure of the wind turbine blades in the above embodiments.

[0161] In one example, the electronic device may also include a communication interface 703 and a bus 710. For example, Figure 7 As shown, the processor 701, memory 702, and communication interface 703 are connected through bus 710 and complete communication with each other.

[0162] The communication interface 703 is mainly used to realize communication between various modules, devices, units and / or equipment in the embodiments of this application.

[0163] Bus 710 includes hardware, software, or both, that couples components of an online data traffic metering device together. For example, and not limitingly, the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an Infinite Bandwidth Interconnect, a Low Pin Count (LPC) bus, a memory bus, a Microchannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable buses, or combinations of two or more of these. Where appropriate, bus 710 may include one or more buses. Although specific buses are described and illustrated in embodiments of this application, any suitable bus or interconnect is contemplated herein.

[0164] Furthermore, in conjunction with the wind turbine blade surface turbulence structure generation method in the above embodiments, this application embodiment can provide a computer storage medium for implementation. This computer storage medium stores computer program instructions; when these computer program instructions are executed by a processor, they implement any of the wind turbine blade surface turbulence structure generation methods in the above embodiments.

[0165] It should be clarified that this application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of this application is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of this application.

[0166] The functional blocks shown in the above-described structural diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this application are programs or code segments used to perform the required tasks. Programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried on a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0167] It should also be noted that the exemplary embodiments mentioned in this application describe methods or systems based on a series of steps or apparatus. However, this application is not limited to the order of the above steps; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0168] The aspects of this disclosure have been described above with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It should be understood that each block in the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine such that these instructions, executable via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions / actions specified in one or more blocks of the flowchart illustrations and / or block diagrams. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field-programmable logic circuit. It is also understood that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can also be implemented by special-purpose hardware performing the specified functions or actions, or can be implemented by a combination of special-purpose hardware and computer instructions.

[0169] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A method for generating a turbulence structure on the surface of a wind turbine blade, characterized in that, include: A curable adhesive is sprayed onto a portion of the blade surface using a spraying device. Determine the spatial characteristics of the attachment material; The spatial characteristics of the attached material are compared with the spatial characteristics of the preset target disturbance structure to obtain the comparison results; The spraying process ends when the comparison result indicates that the difference between the spatial characteristics of the attachment and the spatial characteristics of the target disturbance structure meets a preset condition.

2. The method according to claim 1, characterized in that, The method further includes: In response to the comparison result indicating that the difference between the spatial characteristics of the attachment and the spatial characteristics of the target disturbance structure does not meet the preset conditions, the defect location of the attachment is determined. In response to the comparison result indicating that the difference between the spatial characteristics of the attachment and the spatial characteristics of the target turbulence structure meets the preset conditions, the attachment solidified on the blade is identified as the turbulence structure of the blade, and the spraying is terminated.

3. The method according to claim 1, characterized in that, The adhesive sprayed on the blade is in the shape of a spiral that surrounds the blade along a spiral path and extends along the length of the blade.

4. The method according to claim 3, characterized in that, The spraying device includes a spray head that moves along a track that surrounds the blade along the spiral path and extends along the length of the blade; The process of spraying a curable, adherent material onto a portion of the blade surface using a spraying device includes: A curable, adherent material is sprayed onto a portion of the blade surface via the nozzle as it moves along the track.

5. The method according to claim 1, characterized in that, Determining the spatial characteristics of the attachable object includes: Acquire at least one image of the blade coated with the adhesive material; Based on the at least one image, construct a first-dimensional model of the blade coated with the adhesive material; Based on the first-dimensional model and the second-dimensional model, the attachment space characteristics of the attachable object are obtained; The second dimensional model is the dimensional model of the blade without the coating of the adhesive.

6. The method according to claim 5, characterized in that, The acquisition of at least one image of the blade coated with the adhesive includes: At least one image is captured at at least one location on the blade coated with the adhesive by an image acquisition device that moves along the track; The track surrounds the blade along a spiral path and extends along the length of the blade.

7. The method according to claim 4, characterized in that, Before spraying a curable, adherent material onto a portion of the blade surface using a spraying device, the method further includes: Glass fibers are wound around the surface of the blade along the spiral path.

8. The method according to any one of claims 1-7, characterized in that, The components of the adhesive include glass fiber.

9. The method according to any one of claims 1-7, characterized in that, The adherable material is a foamed material, and the components of the foamed material include isocyanate, polyol, catalyst, foaming agent, foam stabilizer, carbon black and glass fiber.

10. The method according to claim 9, characterized in that, The weight ratio of the components in the foamed material includes: Isocyanate 45%–52%, polyol 45%–41%, foaming agent 3%–4%, foam stabilizer 1%–2%, carbon black 1%–2%, glass fiber 2%–4%.

11. The method according to any one of claims 1-7, characterized in that, The cross-sectional shape of the adhesive sprayed on the blade is approximately triangular.

12. A device for generating a turbulence structure on the surface of a wind turbine blade, characterized in that, include: Fixtures used to secure blades; A spraying device for spraying a curable, adherent material onto a portion of the surface of the blade.

13. The apparatus according to claim 12, characterized in that, The device further includes: The track surrounds the blade along a helical path and extends along the length of the blade; The spraying device includes a spray head that moves along the track.

14. The apparatus according to claim 12, characterized in that, The device further includes: An image acquisition device is used to capture at least one image of at least one location on the blade.

15. The apparatus according to claim 14, characterized in that, The device further includes: The track surrounds the blade along a helical path and extends along the length of the blade; The image acquisition device moves along the track.

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