System and procedure for the inspection of wind turbines

Abstract

Method for inspecting a wind turbine (10) for signs of defects, the method comprising: providing an inspection system (100) at a distance from the wind turbine (10), the inspection system (100) comprising an observation system (102) and an inspection device (104), the observation system (102) comprising an inspection device (106) and a reflection device (110) arranged next to the inspection device (106), the inspection device (106) being configured to provide an image of at least a part of the rotor blade, the reflection device (110) being configured to rotate about at least one axis, thereby shifting the image; inspecting a rotor blade of the wind turbine (10) and checking the rotor blade for signs of defects.

Description

AREA OF INVENTION

[0001] The present disclosure relates generally to wind turbines and in particular to systems and methods for the inspection of wind turbines. GENERAL STATE OF THE ART

[0002] Wind energy is considered one of the cleanest and most environmentally friendly energy sources currently available, and wind turbines have therefore received increasing attention. A modern wind turbine typically comprises a tower, a generator, a gearbox, a nacelle, and one or more rotor blades. The rotor blades capture the kinetic energy of the wind using well-known wing principles. The rotor blades transfer this kinetic energy as rotational energy to turn a shaft, which connects the rotor blades to a gearbox or, if no gearbox is used, directly to the generator. The generator then converts the mechanical energy into electrical energy, which can be fed into a power grid.

[0003] The inspection of wind turbines, particularly their rotor blades, is crucial for their continued operation. Current wind turbine inspection systems and procedures involve the use of telescopes to manually inspect the rotor blades for cracks, wear, fouling, or other potential defects known as indicators. Typically, an inspector positions a telescope at a certain distance from the turbine and manually uses it to visually inspect the rotor blades for these indicators. Furthermore, the inspector must manually move the telescope to scan the rotor blades. This inspection process has several drawbacks. For example, manually inspecting rotor blades from a distance exposes the process to human error.The inspector may fail to identify an indicator, or the inspector may lose their bearings during the inspection of the rotor blades and provide inaccurate information. Furthermore, manual inspection of rotor blades can only be performed under optimal environmental conditions. For example, a manual inspection of a wind turbine cannot be carried out at night or in cloudy, rainy, or otherwise unsatisfactory weather, and can only be performed in daylight with suitable illumination, not in glare or shadow. Consequently, current systems and procedures for inspecting wind turbines are relatively inaccurate, slow, and inefficient.

[0004] Accordingly, there is a need for a system and procedure for inspecting wind turbines that eliminate or reduce the associated human error. Furthermore, an inspection system and procedure that can operate under a wide variety of environmental conditions would be desirable. Additionally, there is a need for a wind turbine inspection system and procedure that are relatively fast and efficient. BRIEF DESCRIPTION OF THE INVENTION

[0005] Some aspects and advantages of the invention are presented in the following description, or may be obvious from the description, or can be learned by carrying out the invention.

[0006] In one embodiment, a method for inspecting a wind turbine for signs of defects is disclosed. The method comprises providing an inspection system located at a distance from the wind turbine, examining a rotor blade of the wind turbine, and inspecting the rotor blade for signs of defects. The inspection system comprises a monitoring system and an inspection device, wherein the monitoring system includes a visual inspection device and an automatic scanning device, the visual inspection device being configured to provide an image of at least a portion of the rotor blade, and the automatic scanning device being configured to rotate about at least one axis, thereby shifting the image.

[0007] In another embodiment, an inspection system for inspecting a wind turbine for signs of defects is disclosed. The inspection system comprises a monitoring system configured to inspect a rotor blade of the wind turbine. The monitoring system includes an inspection device and an automatic scanning device, wherein the inspection device is configured to provide an image of at least a portion of the rotor blade, and the automatic scanning device is configured to rotate about at least one axis, thereby shifting the image. The inspection system further comprises an inspection device connected to the monitoring device and configured to use the image to inspect the rotor blade for signs of defects.

[0008] These and other features, aspects, and advantages of the present invention will be better understood with reference to the following description and the attached claims. The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] A complete and enabling disclosure of the present invention, including its best mode, addressed to a person skilled in the art, is set forth in the specification which refers to the attached figures, in which:

[0010] Fig. 1 is a perspective view of an exemplary wind turbine;

[0011] Fig. 2 a side view of an embodiment of the inspection system of the present disclosure;

[0012] Fig. 3 a side view of another embodiment of the inspection system of the present disclosure is and

[0013] Fig. 4 is a flowchart that represents an embodiment of a method for inspecting a wind turbine for signs of defects. DETAILED DESCRIPTION OF THE INVENTION

[0014] Reference will now be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided to illustrate the invention, not to limit it. Indeed, it will be obvious to those skilled in the art that various modifications and variations can be made to the present invention without departing from its scope and purpose. Features illustrated or described as part of one embodiment can, for example, be used with another embodiment to produce yet another embodiment. Consequently, the present invention is intended to cover such modifications and variations as fall within the scope of the appended claims and their equivalents.

[0015] Fig. Figure 1 is a perspective view of an example wind turbine. 10In the exemplary embodiment, the wind turbine 10 A wind turbine with a horizontal axis. Alternatively, the wind turbine can 10 It should be a wind turbine with a vertical axis. In the exemplary embodiment, the wind turbine comprises 10 a tower 12 , which extends from a wing 14 extends, such as from the ground or a platform or a foundation, a gondola 16 , which are at the tower 12 is mounted, and a rotor 18 , the one who took the gondola 16 is connected. The rotor 18 includes a rotating hub 20 and at least one rotor blade 22 , the one with the hub 20 is connected and extends outwards from it. In the exemplary embodiment, the rotor has 18 three rotor blades 22 in an alternative embodiment, the rotor comprises 18more or less than three rotor blades 22 In the exemplary embodiment, the tower 22 Made of steel tubing to create a cavity (in Fig. 1 not shown) between the wing 14 and the gondola 16 to define. In an alternative embodiment, the tower 12 any suitable type of tower of any suitable height.

[0016] The rotor blades 22 are located at regular intervals around the hub 20 around, to rotate the rotor 18 to facilitate the conversion of kinetic energy from the wind into usable mechanical energy and subsequently electrical energy. The rotor blades 22 are formed by connecting a leaf base part 24 with the hub 20 in several load-shifting regions 26 with the hub 20 They fit together. The load-shifting regions26 exhibit a hub load transfer region and a leaf load transfer region (both not in Fig. 1 shown). On the rotor blades 22 The resulting loads are distributed across the load-shifting regions. 26 on the hub 20 transferred. In one embodiment, the rotor blades 22 a length ranging from approximately 15 meters (m) to approximately 91 m. Alternatively, the rotor blades can 22 have any suitable length that the wind turbine 10 This allows it to operate as described herein. Other, non-restrictive examples of blade lengths include, for example, 10 m or less, 20 m, 37 m, or a length greater than 91 m. If the wind is from a certain direction 28 on the rotor blades 22 when it hits the rotor 18 around an axis of rotation 30 rotated. When the rotor blades 22The rotor blades are rotated and subjected to centrifugal forces. 22 They are also subject to various forces and moments. As such, the rotor blades can 22 deflected and / or rotated from a neutral or non-deflected position to a deflected position. Furthermore, the pitch angle or blade tilt of the rotor blades can be adjusted. 22 , i.e., an angle that provides a perspective of the rotor blades 22 in terms of direction 28 determined by the wind, through a tilt adjustment system 32 to be modified to reduce the load and energy supplied by the wind turbine 10 generated, to be controlled by an angular position of at least one rotor blade 22 to be adjusted in relation to wind vectors. Inclination axes 34 for the rotor blades 22 are shown. During the operation of the wind turbine 10 can the tilt adjustment system 32a blade tilt of the rotor blades 22 so that the rotor blades 22 to be moved into a spring-loaded position, so that the perspective of at least one rotor blade 22 relative to wind vectors, a minimal surface area of ​​the rotor blade 22 provides, which is to be aligned in the direction of the wind vectors, thus reducing the rotational speed of the rotor. 18 facilitated; or a larger surface area of ​​the rotor blade 22 can be presented to the wind vectors, which causes the rotor to stop. 18 relieved.

[0017] In the exemplary embodiment, a blade inclination of each rotor blade is 22 from a tax system 36 individually controlled. Alternatively, the blade pitch can be adjusted for all rotor blades. 22 from the tax system 36 can be controlled simultaneously. Furthermore, in the exemplary embodiment, if the direction28 changes the yaw direction of the gondola 16 around a yaw axis 38 to be controlled in order to adjust the rotor blades 22 in terms of direction 28 to position.

[0018] In the exemplary embodiment, the control system is 36 as in the gondola 16 Centralized display; the tax system 36 However, it can also be a system that is integrated throughout the entire wind turbine. 10 is distributed, a system on the wing surface 14 , in a wind farm and / or in a decentralized control center. The control system 36 includes a processor 40, which is configured to perform the procedures and / or steps described herein. Furthermore, many of the other components described herein include a processor. As used herein, the term "processor" is not limited to integrated circuits referred to in engineering as a computer, but refers more generally to a controller, microcontroller, microcomputer, programmable logic controller (PLC), application-specific integrated circuit, and other programmable circuits, and these terms are used interchangeably herein. It is understood that a processor and / or control system may also include memory, input channels, and / or output channels.

[0019] Now, with reference to the Fig. 2 and Fig. 3 can be at the wind turbine 10various signs of defects during manufacturing, assembly, operation or otherwise as disclosed in the present disclosure 50 This can occur. A sign of a problem. 50 This could include, for example, a crack, wear and tear, contamination, or other defect in the wind turbine. 10 , like in a rotor blade 22 , the tower 12 or another component of the wind turbine 10 , be. The signs of the error 50 If they are not detected and repaired, the various components of the wind turbine can be damaged. 10 damage or cause their failure. 50 in areas with high load on the rotor blades 22 For example, in some cases they may need to be repaired before they grow to a length of more than approximately 50 millimeters (“mm”), while signs of defects 50 in areas with low load on the rotor blades 22They may need to be repaired before they grow to a length of more than approximately 3 meters (“m”).

[0020] Consequently, an inspection system 100 for the inspection of the wind turbine 10 for signs of errors 50 be provided. The inspection system 100 For example, an observation system 102 and an inspection device 104 include the inspection system. 100 can perform a variety of tasks to ensure a fast, efficient, and accurate inspection of the wind turbine 10 to provide.

[0021] The observation system 102 can be configured to include the various components of a wind turbine 10 , like the rotor blades 22 , the tower 10 or any other component of the wind turbine 10 , reviewed. The observation system 102can, for example, be located at a distance from the wind turbine 10 be arranged and positioned. In one exemplary embodiment, the observation system can 102 on the ground at a distance from the wind turbine 10 be arranged. Alternatively, the observation system can 102 for example on the loading platform of a truck or at any other suitable location at a distance from the wind turbine 10 be arranged.

[0022] The observation system 102 can an assessment device 106 include the assessment device. 106 can the component of the observation system 102 be the various components of the wind turbine 10 examined. The examination device 106 may include an enlarged view or image of the inspected component of the wind turbine 10or at least a part of it, so that this component can detect signs of errors. 50 can be inspected. In exemplary embodiments, the inspection device can 106 for example, a telescope, a spotting scope, or any other suitable magnifying device. Furthermore, the inspection device can 106 They include any variety of suitable zoom and focus functions. These zoom and focus functions can be used to enable the viewing of images of the inspected component of the wind turbine. 10 for better inspection for signs of defects 50 can be edited.

[0023] The observation system 102 Can an automatic scanning device still be used? 108 include the automatic scanning device. 108It can be configured to rotate around at least one axis, as discussed below. In general, the automatic scanning device can 108 the view or image of the inspection device 106 relocate if the assessment device 106 a component of the wind turbine 10 inspected, which enables the inspection device to 106 a complete assessment of the wind turbine component 10 performs. In exemplary embodiments, the automatic scanning device can 108 for example, the view or image of the inspection device 106 relocate, while allowing the assessment device 106 remains stationary. In alternative exemplary embodiments, the automatic search device can 108 the view or image of the inspection device 106relocate by moving the assessment device 106 mechanically rotated and / or moved. The automatic scanning device 108 This can reduce or eliminate various errors that occur with the manual movement of an inspection device. 106 for searching and inspecting a component of the wind turbine 10 be associated with

[0024] In one exemplary embodiment, the automatic scanning device can 108 for example, a reflection device 110 be. The reflection device 110 It can be any device with a reflective surface or a light-refracting volume, such as a mirror or a prism. The reflective device 110 can be used in addition to the assessment device 106 be arranged and can be rotatable about at least one axis, independently of the inspection device 106The reflection device 110 Can a picture of the inspected component of the wind turbine be shown? 10 reflect or refract and can this image be used by the assessment device 106 provide. Consequently, the reflection device can 110 In exemplary embodiments, the inspection device enables 106 during the inspection of a component of the wind turbine 10 It remains location-bound. However, it is understood that the assessment device 106 in alternative exemplary embodiments during the assessment of a component of the wind turbine 10 can be moved, such as by mechanically rotating it around one or more axes, while the reflection device 110 revolves around other axes, as discussed below.

[0025] Alternatively, the automatic scanning device can be used 108 a bracket 112be. The bracket 112 can be used with the assessment device 106 be connected and can be rotatable about at least one axis, thus also serving as the inspection device 106 which rotates around at least one axis. Consequently, the bracket can 112 the view or image of the inspection device 106 In exemplary embodiments, mechanically relocate the device so that it is possible for the inspection device to be moved. 106 the components of the wind turbine 10 reviewed.

[0026] The automatic scanning device 108 , like the reflection device 110 or the holder 112 It can be configured to rotate around at least one axis. In general, the rotation of the automatic scanning device can be... 108It can be a mechanical, automatic rotation. Furthermore, the rotation can be performed in steps or it can be a smooth, continuous rotation from a desired starting point to a desired stopping point. The automatic scanning device 108 for example, an engine 114 include, which can be operated in such a way that it enables the automatic scanning device 108 mechanically rotates around at least one axis. The motor 114 can be any mechanical device used to move the automatic scanning device 108 is suitable.

[0027] In one exemplary embodiment, the automatic scanning device can 108 around a pivot axis 116 be rotatable so that the view of the inspection device 106 can be swivelled as needed to access the various components of the wind turbine 10to be examined. In an alternative exemplary embodiment, the automatic scanning device can 108 around a tilting axis 118 be rotatable so that the view of the inspection device 106 can be tilted as needed to access the various components of the wind turbine 10 to be examined. It is understood that the rotation of the automatic scanning device 108 around one axis, not around the pivot axis 116 or the tilting axis 118 is limited, but rather that they can be rotated as needed around any suitable axis to adjust the various components of the wind turbine. 10 to be reviewed.

[0028] In exemplary embodiments, the automatic scanning device can 108 It must be configured to rotate around two or more axes. The motor 114It can, for example, be operated in such a way that it controls the automatic scanning device. 108 mechanically rotates around two or more axes, or the automatic scanning device 108 can have more than one engine 114 for the mechanical rotation of the reflection device 110 encompassing various axes. In an exemplary embodiment, the automatic scanning device can 108 for example, to both the pivot axis 116 as well as the tilting axis 118 be rotatable.

[0029] The observation system 102 can still use a processor 120 for operating the observation system 102 include the observation system 102 , like the assessment device 106 , the scanning device 108 and / or any other components or systems of the observation system 102 , can communicate with the processor 120be connected. The communicative connection of the various components of the observation system. 102 and the processor 120 This can be through a physical connection, such as a cable or other line or umbilical cord, or it can be a wireless connection, such as one based on infrared, cellular, sound, light, or radio frequency. The processor 120 It can be integrated into a suitable control system (not shown), such as a handheld remote control, a minicomputer, a mobile phone, a separate pendant control, or a computer. The monitoring system 102 can be manually controlled by a human operator through the processor 120 can be operated or can be operated by using suitable program logic that is implemented in the processor 120 It is integrated, semi-automatic, or fully automatic.

[0030] The inspection device 104 can be used with the observation device 102be connected or can be configured to operate the wind turbine 10 , like the rotor blades 22 or any other components of the wind turbine 10 , like the tower 12 , for signs of errors 50 inspected. Furthermore, the inspection device can 104 the images produced by the assessment device 106 to be provided, at least in part for the purpose of inspecting the wind turbine 10 or use a component thereof. The inspection device 104 The present disclosure can, for example, encompass any variety of components or systems for inspecting the wind turbine. 10 include. In exemplary embodiments, the inspection device can 104 a variety of devices configured to control the rotor blades 22inspect. Furthermore, the various components and systems of the inspection device can be inspected. 104 , as discussed below, with the observation device 102 be connected to and related to it. Consequently, images or views of the inspected component of the wind turbine may be used. 10 for example, the inspection device 104 communication can take place so that the inspection device 104 the component of the wind turbine 10 for signs of errors 50 can inspect.

[0031] In one exemplary embodiment, the inspection device can 104 for example a measuring device 130 include the measuring device 130 can be configured to measure the size of any error indicators 50 , which are attached to the wind turbine 10 can be recognized, as on a rotor blade 22 , measures. The measuring device130 can, for example, at least one laser 132 or multiple lasers 132 include the lasers 132 can be found in the error signs 50 or the immediate vicinity of the error signs 50 , which are attached to the wind turbine 10 can be detected, directed, and can be used to measure the size of the error signs. 50 can be used. In one exemplary embodiment, the measuring device can 130 two lasers 132 include lasers that are arranged approximately parallel to each other. 132 can be calibrated so that the distance between the endpoints 134 the laser 132 is known. The lasers 132 can then be used to measure the size of the error signs 50 can be used by the lasers 132 on the signs of error 50 or the immediate vicinity of the error signs 50to be directed and the known distance between the endpoints 134 for scaling and measuring the size of the error signs 50 is used. The known distance between the endpoints 134 can be documented, as in pictures of the signs of the error 50 , which are from the inspection device 104 were recorded, as discussed below, so that the size of the error indicators 50 during or after the inspection of the wind turbine 10 can be documented, verified and recorded.

[0032] It goes without saying that any number of lasers 132 can be used, and that when more than one laser 132 the laser is used 132 They do not need to be arranged parallel to each other, but can have any orientation relative to each other. Furthermore, it is understood that the measuring device 130 no lasers 132not necessarily, but rather any suitable measuring devices, such as any variety of light sources or pointers.

[0033] The measuring device 130 and various components within it can still use a processor 136 encompass and be communicatively connected to it in order to use the measuring device 130 to operate. The communicative connection of the measuring device 130 and the processor 136 This can be through a physical connection, such as a cable or other line or umbilical cord, or it can be a wireless connection, such as one based on infrared, cellular, sound, light, or radio frequency. The processor 136 It can be integrated into a suitable control system (not shown), such as a handheld remote control, a minicomputer, a mobile phone, a separate pendant control, or a computer. The measuring device 130can be manually controlled by a human operator through the processor 136 can be operated or can be operated by using suitable program logic that is implemented in the processor 136 The processor is integrated and can be semi- or fully automatic. Furthermore, it can be... 136 a suitable processing device and software for performing the various calculations required by the measuring device 130 are needed.

[0034] In one exemplary embodiment, the inspection device can 104 for example, a real-time imaging device 140 include the real-time imaging device. 140 It can be configured to provide a real-time image of the error signs. 50 provides the real-time imaging device. 140 For example, a camera 142This includes, for example, a video camera, digital camera, analog camera, or other suitable imaging device. The camera 142 can be through a physical connection, such as a cable or other line or umbilical cord, or through a wireless connection, such as a connection based on infrared, cellular, sound, light or radio frequency, communicating with a receiver 144 be connected. The recipient 144 This could be, for example, a computer, a television, or another screen, monitor, or device for displaying an image or video. If the observation device 102 the wind turbine 10 examined, the camera 142 Real-time images of the inspected areas of the wind turbine 10 , like the parts of the rotor blade 22 , provide these real-time images to the recipient 144be provided and can be operated by human operators of the inspection system 100 The real-time images can be viewed and / or recorded. They can be used by human operators or, alternatively, by recognition software, as discussed below, to detect signs of malfunctions. 50 can be used.

[0035] The real-time imaging device 140 and various components within it can still use a processor 146 encompass and be communicatively connected to this in order to enable real-time imaging. 140 to operate. The communicative connection of the real-time imaging device. 140 and the processor 146 This can be through a physical connection, such as a cable or other line or umbilical cord, or it can be a wireless connection, such as one based on infrared, cellular, sound, light, or radio frequency. The processor 146It can be integrated into a suitable control system (not shown), such as a handheld remote control, a minicomputer, a mobile phone, a separate pendant control, or a computer. The real-time imaging device 140 can be manually controlled by a human operator through the processor 146 can be operated or can be operated by using suitable program logic that is implemented in the processor 146 It is integrated, semi-automatic, or fully automatic.

[0036] In one exemplary embodiment, the inspection device can 104 for example, a grid system 150 include the grid system. 150 can be configured to operate the wind turbine 10 It scans how the inspected component of the wind turbine 10 , like the rotor blade 22 The grid system 150It can, for example, be configured to take pictures of the inspected area of ​​the wind turbine. 10 records and rasterizes these images.

[0037] In an exemplary embodiment, the grid device 150 the camera 142 to take pictures of the inspected area of ​​the wind turbine 10 Alternatively, the grid device can be used. 150 Use a separate camera or other imaging device. 142 or the other camera or imaging device can communicate with rasterization software 154 be connected to send images of the inspected areas of the wind turbine 10 , like the rotor blade 22 , to rasterize. Any suitable rasterization software, such as any software that inputs images and outputs raster images or grids, can be used in the rasterization setup. 150can be used. An example of suitable rasterization software. 154 RASTERVECT is from RASTERVECT SOFTWARE.

[0038] The grid device 150 and various components within it can still use a processor 156 encompass and be communicatively connected to it in order to use the grid system 150 to operate. The communicative connection of the grid system. 150 and the processor 156 This can be through a physical connection, such as a cable or other line or umbilical cord, or it can be a wireless connection, such as one based on infrared, cellular, sound, light, or radio frequency. The processor 156 It can be integrated into a suitable control system (not shown), such as a handheld remote control, a minicomputer, a mobile phone, a separate pendant control, or a computer. The grid device 150can be manually controlled by a human operator through the processor 156 can be operated or can be operated by using suitable program logic that is implemented in the processor 156 It is integrated, semi-automatic, or fully automatic.

[0039] In exemplary embodiments, the grid device can 150 communicative with the observation system 102 be connected so that the grid device 150 the pattern in which the observation system 102 the inspected component of the wind turbine 10 , like the rotor blade 22 , reviewed. In an exemplary embodiment, the grid device can 150 for example, require that the observation system 102 the tower 12 examined in a sample, so that the grid device 150 This begins with the suction side or pressure side of a rotor blade. 22at the tip of the rotor blade 22 to document, and then generally about the length of the rotor blade 22 to the hub of the rotor blade 22 continues, covering at least part of the width of the rotor blade 22 records, and then continues back towards the tip by passing over a line or point that represents the maximum belt width of the rotor blade. 22 defined, whereby they represent the remainder of the rotor blade's width 22 records. In another embodiment, the rasterizing device 150 require that the observation system 102 the tower 12 examined in a sample, so that the grid device 150 This begins with the suction side or pressure side of a rotor blade. 22 at the tip or hub of the rotor blade 22 to document, and then generally about the length of the rotor blade 22to the point where it continues from the tip and the hub, spanning the entire width of the rotor blade 22 records in a single pass. In other embodiments, the rasterizing device can 150 any part of the rotor blade 22 document using any suitable grid pattern, including straight, curved or zigzag patterns.

[0040] In one exemplary embodiment, the inspection device can 104 for example, an image analysis device 160 include the image analysis device. 160 can be configured to display images of the error symptoms 50 records and the images of the error signs 50 optimized. The image analysis device 160 For example, the camera 142 or a separate camera or other imaging device for taking pictures of signs of defects50 , which occurred during the inspection of the wind turbine 10 be found, use. The camera 142 or the other camera or imaging device can communicate with image analysis software 164 It needs to be connected to optimize the images. The image analysis software 164 For example, it can be configured to brighten or darken the image, change the contrast, resolution, or color, enlarge the image, or perform any variety of image optimizations as is known in the field. Alternatively, the camera can 142 or the other camera or imaging device a variety of images of each display 50 The images can be captured in various resolutions, contrasts, illuminations, colors, and other adjustable image characteristics. The image analysis software... 164It can be configured to combine the images to create a suitable, detailed image of the display. 50 to produce. An example of suitable image analysis software. 164 Adobe Photoshop is by Adobe Systems Inc.

[0041] In some exemplary embodiments, the image analysis device can 160 must be configured to detect the error signs. 50 automatically detected. The camera 142 or the other camera or imaging device can, for example, communicate with machine image recognition software 166 for automatically detecting error signs 50 be connected. The machine image recognition software 166 can monitor the images taken by the camera 142 or the other camera or imaging device is communicated with, and may show signs of error. 50to recognize in the images. An example of suitable machine image recognition software. 166 ROBOREALM is the robot image recognition software from ROBOREALM. The machine image recognition software 166 , the image analysis software 164 and the camera 142 or the other camera or suitable imaging device may continue to be communicatively connected in such a way that the machine image recognition software 166 Optimizing images of error signs 50 , which can be automatically detected and steered.

[0042] In one embodiment, the image analysis device 160 , like the machine image recognition software 166 , the contrast between different areas on the analyzed component of the wind turbine 10 , as between different areas on a rotor blade 22 , recognize and use to detect the signs of error 50Automatically detectable error signs. 50 on the analyzed component of the wind turbine 10 For example, they may be discolored or emit light differently than the rest of the wind turbine component. 10 reflect. Consequently, a contrast in terms of color and / or the component of the wind turbine will be reflected. 10 reflected light in the area of ​​a display 50 are available, and the image analysis device 160 It can detect and utilize this resulting contrast gradient. Furthermore, the image analysis device can 160 detect the duration and / or magnitude of a contrast gradient when the inspection device 104 the wind turbine 10 inspected, and this duration and / or order of magnitude is used to calculate the size of the display. 50 Furthermore, contrast gradients can be analyzed by the image analysis unit. 160to identify the outline or silhouette of the analyzed component of the wind turbine 10 can be used.

[0043] In another embodiment, the image analysis device 160 at least one laser 167 or multiple lasers 167 include the lasers 167 can access the inspected component of the wind turbine 10 , like on a rotor blade 22 , be directed and can be used for automatic detection of error signs 50 The lasers are used. 167 can, for example, be done via the surface of the inspected component of the wind turbine 10 be directed. If the lasers 167 about error signs 50 on the analyzed component of the wind turbine 10 The lasers can run 167 of the error signs 50be disturbed or altered. This disturbance or alteration can be detected by the image analysis device. 160 can be captured or used. Furthermore, the image analysis device can 160 detect the duration of a malfunction or change when the inspection device 104 the wind turbine 10 inspected, and this duration is used to calculate the size of the display. 50 use. Furthermore, disturbances or changes can occur in the image analysis device. 160 to identify the outline or silhouette of the analyzed component of the wind turbine 10 can be used.

[0044] The image analysis device 160 , like the machine image recognition software 166 , can communicate with the observation system 102 be connected. Consequently, the machine image recognition software can 166 be able to use the observation system 102for the assessment of the wind turbine 10 to operate while the machine image recognition software 166 for detecting signs of errors 50 works, and may be able to operate the observation system 102 to stop the assessment, such as by stopping the rotation around an axis, when a display 50 is recognized, so that images of the display 50 can be recorded and processed.

[0045] The image analysis device 160 It can also be configured to perform a comparative analysis of images of the error signs. 50 performs. The image analysis device 160 for example, during the inspection of the wind turbine 10 Images of the wind turbine 10 , like the rotor blade 22 , save. During subsequent inspections of the wind turbine 10 Can the image analysis device160 upon receiving current images of the wind turbine 10 Compare the current images with previously saved images. Furthermore, the image analysis feature can 160 for example, those signs of error 50 indicate that the specified limit values ​​are approaching. Furthermore, the image analysis device can 160 for example, changes and / or an increase in error signs 50 record and continue to monitor the performance of the wind turbine 10 , like the rotor blade 22 , based on the error indicators 50 track this. This comparative analysis can therefore be used by the image analysis device. 160 enable, for example, the development of new error indicators 50 to recognize and / or the growth of existing signs of defects 50 to track. In some implementations, the comparative analysis can be performed by machine image recognition software.166 can be performed or can be performed by any other suitable component of the image analysis software 160 be performed.

[0046] The image analysis device 160 and various components within it can still use a processor 168 encompass and be communicatively connected to this in order to use the image analysis device 160 to operate. The communicative connection of the image analysis device 160 and the processor 168 This can be through a physical connection, such as a cable or other line or umbilical cord, or it can be a wireless connection, such as one based on infrared, cellular, sound, light, or radio frequency. The processor 168It can be integrated into a suitable control system (not shown), such as a handheld remote control, a minicomputer, a mobile phone, a separate pendant control, or a computer. The image analysis device 160 can be manually controlled by a human operator through the processor 168 can be operated or can be operated by using suitable program logic that is implemented in the processor 168 It is integrated, semi-automatic, or fully automatic.

[0047] In one exemplary embodiment, the inspection system can 100 an inspection fluid 170 include the inspection fluid. 170 can be configured so that it is the inspected component of the wind turbine 10 , like a rotor blade 22 , admittedly, to show signs of error 50 to reveal. The inspection fluid 170It can be, for example, a gas or a liquid. In exemplary embodiments, the inspection fluid can be... 170 It could be steam, hot air, cold air, or smoke. It goes without saying that the inspection fluid... 170 is not limited to steam, hot air, cold air or smoke, but any suitable gas or liquid for revealing signs of defects 50 It may be. The inspection fluid 170 can show signs of error 50 reveal, for example, through cracks, holes or openings in the inspected component of the wind turbine 10 seeps in, which is indicated by the signs of error. 50 can be caused. In one exemplary embodiment, the inspection fluid can 170 for example, the interior of a rotor blade 22 be added. The inspection fluid 170 can be through the rotor blade 22from the inside to the outside through any signs of defects 50 seepage, which leads to cracks, holes or openings in the rotor blade 22 have led to this.

[0048] The inspection device 104 can be configured to use the inspection fluid 170 detects how to detect inspection fluid 170 , which is due to the inspected component of the wind turbine 10 It's seeping. The inspection device 104 For example, an imaging device 172 include the imaging device. 172 can be configured to take images of the inspected component of the wind turbine 10 records in any suitable video or photo format, so that the inspection fluid 170 , which is due to the component of the wind turbine 10 seeps in, which is visible in the images. The imaging device 172This could be, for example, any suitable device for recording visible images, infrared images, ultraviolet images, or spectral images.

[0049] The imaging device 172 and various components within it can still use a processor 174 encompass and be communicatively connected to it in order to use the imaging device 172 to operate. The communicative connection of the imaging device 172 and the processor 174 This can be through a physical connection, such as a cable or other line or umbilical cord, or it can be a wireless connection, such as one based on infrared, cellular, sound, light, or radio frequency. The processor 174 It can be integrated into a suitable control system (not shown), such as a handheld remote control, a minicomputer, a mobile phone, a separate pendant control, or a computer. The imaging device172 can be manually controlled by a human operator through the processor 174 can be operated or can be operated by using suitable program logic that is implemented in the processor 174 It is integrated, semi-automatic, or fully automatic.

[0050] In exemplary embodiments, the inspection system can 100 a light source of the present revelation 180 include the light source 180 can be configured to detect error signs 50 reveals the light source. 180 For example, it can enable the inspection system to 100 operates at night or in cloudy or harsh weather. Furthermore, the light source can 180 It should be operated in such a way as to create favorable lighting conditions, such as incident light, to allow for inspection of fault signs. 50 to enable relatively high contrast. The light source 180can, for example, indicate signs of error 50 directed at angles that exaggerate the appearance of the defects 50 through the inspection system 100 are suitable. The light source 180 can be used on the inspection system 100 , as seen in the observation system 102 , be arranged. Alternatively, the light source can 180 at the wind turbine 10 , like at the tower 12 , the hub 20 or any other suitable location on the wind turbine 10 , or be arranged on the floor.

[0051] The light source 180 and various components within it can still use a processor 182 encompass and be communicatively connected to it in order to control the light source 180 to operate. The communicative connection of the light source 180 and the processor 182This can be through a physical connection, such as a cable or other line or umbilical cord, or it can be a wireless connection, such as one based on infrared, cellular, sound, light, or radio frequency. The processor 182 It can be integrated into a suitable control system (not shown), such as a handheld remote control, a minicomputer, a mobile phone, a separate pendant control, or a computer. The light source 180 can be manually controlled by a human operator through the processor 182 can be operated or can be operated by using suitable program logic that is implemented in the processor 182 It is integrated, semi-automatic, or fully automatic.

[0052] It is understood that the various processors can be separate processors or can be combined to form one or more processors, which perform the various functions and inspection tasks required by the inspection system. 100 required, can be carried out or can be carried out.

[0053] The present disclosure further relates to a method for inspecting a wind turbine. 10 for signs of errors 50 Consequently, now with reference to Fig. 4. The procedure can, for example, include the steps of providing an inspection system at a distance from the wind turbine. 200 , the assessment of a component of the wind turbine 202 and inspecting a component of the wind turbine for signs of defects 204 include. As discussed above, the wind turbine can 10 at least one rotor blade of the present disclosure 22include. In exemplary embodiments, the inspection system can 100 for inspecting the rotor blade 22 can be operated and can be used to inspect at least one rotor blade. 22 for signs of errors 50 be operated.

[0054] An inspection system 100 can, for example, be located at a distance from the wind turbine 10 be provided. As discussed above, the inspection system can be 100 an observation system 102 and an inspection device 104 include the observation system 102 can be configured to be a component of the wind turbine 10 , like the rotor blade 22 or any other component of the wind turbine 10 , reviewed, as discussed above.

[0055] The inspection system 100 the present disclosure, how the inspection device 104, can be used to inspect the wind turbine 10 , like the rotor blade 22 or alternatively, the tower 12 or another component of the wind turbine 10 , for signs of errors 50 to be operated. The operation of the inspection system. 100 to inspect the wind turbine 10 for signs of errors 50 In exemplary embodiments, for example, the measurement of the size of the defect signs can be carried out. 50 include the inspection device. 104 of the inspection system 100 For example, a measuring device 130 include the measuring device 130 can be configured to measure the size of error indicators 50 , which are from the inspection device 104 Detected, measured, as discussed above. Furthermore, measuring the size of the error indicators can 50 for example, providing at least one measuring device130 in the inspection system 104 , the calibration of the measuring device 130 and the insertion of the measuring device 130 to measure the size of the error signs 50 include, as discussed above.

[0056] In exemplary embodiments, the operation of the inspection system can 100 to inspect the wind turbine 10 for signs of errors 50 providing a real-time image of the error indicators 50 include the inspection device. 104 of the inspection system 100 For example, a real-time imaging device 140 include the real-time imaging device. 140 It can be configured to provide a real-time image of the error signs. 50 provides, as discussed above.

[0057] In exemplary embodiments, the operation of the inspection system can 100to inspect the wind turbine 10 for signs of errors 50 the grid of the wind turbine 10 include the inspection device. 104 of the inspection system 100 For example, a grid device can 150 include the grid system. 150 can be configured to operate the wind turbine 10 , like the rotor blade 22 or alternatively, the tower 12 or any other component of the wind turbine 10 , rasterizes, as discussed above.

[0058] In exemplary embodiments, the operation of the inspection system can 100 to inspect the wind turbine 10 for signs of errors 50 capturing images of the error signs and optimizing the images of the error signs 50 include. In further exemplary embodiments, the operation of the inspection system can be 100to inspect the wind turbine 10 for signs of errors 50 automatic detection of error signs 50 include the inspection device. 104 of the inspection system 100 For example, an image analysis device can 160 include the image analysis device. 160 can be configured to take pictures of error signs 50 records and the images of the error signs 50 optimized, and can still be configured to detect the signs of errors 50 automatically detects, as discussed above.

[0059] In exemplary embodiments, the method can eliminate the step of providing an inspection fluid to the inspected component of the wind turbine. 10 , like the rotor blade 22 , include, as discussed above.

[0060] Furthermore, the operation of the inspection system can 100to inspect the wind turbine 10 for signs of errors 50 the detection of the inspection fluid 170 include the inspection device. 104 of the inspection system 100 For example, an imaging device 172 include, which is configured to take images of the inspected component of the wind turbine 10 absorbs, so that the inspection fluid 170 , which is due to the component of the wind turbine 10 seeps in, as can be seen in the pictures, as discussed above.

[0061] In further exemplary embodiments, the method of the present disclosure may comprise various steps that involve positioning the rotor blade. 22 for inspection by the inspection system. The procedure may, for example, include the step of rotating the rotor blade. 22 include, so that the rotor blade 22 approximately parallel to the tower 12and in the immediate vicinity of the tower 12 is. The rotor blade 22 For example, it can be rotated around the axis of rotation until the rotor blade 22 is located in a general downward direction. The rotor blade 22 It can then be rotated and positioned so that it is approximately parallel to the tower. 12 is. Consequently, the inspection system can 100 , which is at the wind turbine 10 , like at the tower 12 , is arranged in an optimal position for inspection of the rotor blade 22 condition.

[0062] The process can continue with the step of rotating the gondola. 16 around the yaw axis 38 include. While the inspection system 100 The present disclosure, for example, advantageously provides a wind turbine 10Being able to inspect under a wide variety of environmental conditions, the use of incident light for wind turbine inspection is possible. 10 still be beneficial. Consequently, the gondola can 16 , when incident light is available or when other desired conditions exist to align the yaw axis 38 be rotated to rotate the rotor blades 22 to position optimally as desired.

[0063] The process can continue with the step of rotating the rotor blade. 22 around the axis of inclination 34 A rotor blade of the present disclosure may, for example, comprise a pressure side, a suction side, a leading edge, and a trailing edge, as is known in the art. Each side and edge of the rotor blade 22 must be inspected. To be inspected by the inspection system 100 To be inspected, the side or edge must be in the line of sight of the inspection system.100 are located. If the rotor blade 22 for example, positioned such that the print side, the entry edge and the exit edge are in the line of sight of the inspection system. 100 If the rotor blade is located, the suction side may not be analyzed. Consequently, the rotor blade may not be able to withstand the analysis. 22 during the inspection of the rotor blade 22 through the inspection system 100 after analyzing parts of the rotor blade 22 , which are in the line of sight of the inspection system 100 are located around the axis of inclination 34 It must be rotated so that other parts of the rotor blade are in the line of sight of the inspection system. 100 be arranged. The inspection system 100 can then begin inspecting the rotor blade. 22 continue.

[0064] In exemplary embodiments, the operation of the inspection system can 100 to inspect the wind turbine 10for signs of errors 50 operating a light source 180 to reveal signs of errors 50 include the inspection system. 100 For example, a light source can 180 include the light source 180 can be configured to detect error signs 50 reveals, as discussed above.

[0065] It is understood that the inspection system and the procedure of the present disclosure are intended for a fast, efficient inspection of a wind turbine. 10 can be optimized. The inspection system and the method of the present disclosure can, for example, be used to inspect the various rotor blades. 22 a wind turbine 10to inspect quickly and efficiently. Furthermore, it is understood that the inspection system and procedure of this disclosure eliminates or reduces human error previously associated with the inspection of wind turbines. 10 was associated with it. Furthermore, it is understood that the inspection system and the procedure of the present disclosure can operate under a wide variety of environmental conditions.

[0066] This written description uses examples to disclose the invention, including its best embodiment, and to enable a person skilled in the art to carry out the invention, including the manufacture and use of devices or systems and the performance of any involved processes. The patentable scope of the invention is defined by the claims and may include further examples that may occur to a person skilled in the art. Such further examples shall fall within the scope of the claims if they comprise structural elements that do not deviate from the exact wording of the claims or if they comprise equivalent structural elements with insignificant differences from the exact wording of the claims.

[0067] A system and a method for inspecting a wind turbine for signs of defects are disclosed. The method comprises providing an inspection system located at a distance from the wind turbine, examining a rotor blade of the wind turbine, and inspecting the rotor blade for signs of defects. The inspection system comprises a monitoring system and an inspection device, wherein the monitoring system includes an assessment device and an automatic scanning device, the assessment device being configured to provide an image of at least a portion of the rotor blade, and the automatic scanning device being configured to rotate about at least one axis, thereby shifting the image.

Claims

[1] Method for inspecting a wind turbine for signs of defects, the method comprising: Providing an inspection system at a distance from the wind turbine, wherein the inspection system comprises an observation system and an inspection device, wherein the observation system comprises an inspection device and an automatic scanning device, wherein the inspection device is configured to provide an image of at least one part of the rotor blade, and wherein the automatic scanning device is configured to rotate about at least one axis, thereby shifting the image; Inspection of a rotor blade of the wind turbine and Inspect the rotor blade for signs of defects. [2] Method according to claim 1, further comprising rotating the rotor blade about an axis of inclination. [3] Method according to claim 1, wherein inspecting the rotor blade for signs of defects includes measuring the size of the signs of defects. [4] Method according to claim 1, wherein inspecting the rotor blade for signs of defects comprises rasterizing the rotor blade. [5] Method according to claim 1, wherein inspecting the rotor blade for defects comprises taking pictures of the defects and optimizing the pictures of the defects. [6] Method according to claim 5, wherein the inspection of the rotor blade for signs of defects includes the automatic detection of the signs of defects. [7] Method according to claim 1, wherein the inspection of the rotor blade for signs of defects comprises providing a real-time image of the signs of defects. [8] Method according to claim 1, further comprising the step of supplying an inspection fluid to the rotor blade, wherein inspecting the rotor blade for signs of defects includes detecting the inspection fluid. [9] Inspection system for inspecting a wind turbine for signs of defects, the inspection system comprising: an observation system configured to inspect a rotor blade of the wind turbine, the observation system comprising an inspection device and an automatic scanning device, the inspection device being configured to provide an image of at least part of the rotor blade, and the automatic scanning device being configured to rotate about at least one axis, thereby shifting the image; and an inspection device connected to the observation device and configured to use the image to inspect the rotor blade for signs of defects. [10] Inspection system according to claim 9, wherein the automatic scanning device is a reflection device and wherein the reflection device is arranged next to the inspection device. [11] Inspection system according to claim 10, wherein the reflection device is configured to rotate about two axes. [12] Inspection system according to claim 10, wherein the inspection device is stationary during the inspection of the rotor blade. [13] Inspection system according to claim 9, wherein the automatic scanning device is a holder and wherein the holder is connected to the inspection device and the inspection device rotates about the at least one axis. [14] Inspection system according to claim 13, wherein the holder is configured to rotate about two axes. [15] Inspection system according to claim 9, wherein the inspection device comprises a measuring device configured to measure the size of the defect signs. [16] Inspection system according to claim 9, wherein the inspection device comprises a rasterizing device configured to rasterize the rotor blade. [17] Inspection system according to claim 9, wherein the inspection device comprises an image analysis device configured to capture images of the defect signs and to optimize the images of the defect signs. [18] Inspection system according to claim 17, wherein the image analysis device is further configured to automatically detect the signs of defects. [19] Inspection system according to claim 9, wherein the inspection device comprises a real-time imaging device configured to provide a real-time image of the defect signs. [20] Inspection system according to claim 9, further comprising an inspection fluid, wherein the inspection fluid is configured to be added to the rotor blade to reveal signs of defects, and wherein the inspection device is configured to detect the inspection fluid.

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