A system for collecting data on wind turbine condition monitoring

Abstract

The present invention provides a system for monitoring and collecting data on the condition of a wind turbine. Compared to existing technologies, the system further comprises a mobile detection module that moves relative to the wind turbine tower, an image acquisition module mounted on the mobile detection module to capture images of the tower's outer wall, a vibration monitoring module coordinated with the mobile detection module to monitor the vibration of the tower, and a drive module that drives the image acquisition module to move and monitor different parts of the tower. The coordinated operation of these modules and mechanisms enables comprehensive and accurate monitoring of different areas of the wind turbine.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power, and in particular to a system for collecting data on wind turbine status monitoring. Background Art

[0002] Due to the complex structure and massive size of wind turbines, and the limitations of turbine conditions and installation costs, only a limited number of sensors can be deployed at limited locations within the turbine. These sensors are then used to monitor the health of the turbine structure. Therefore, the proper placement of sensors on wind turbines is a key issue in wind turbine structural health monitoring.

[0003] This experimental team has been browsing and researching a large amount of relevant records and materials on the relevant technologies of wind turbine monitoring for a long time. At the same time, it relies on relevant resources and conducts a large number of relevant experiments. After a lot of searches, it is found that there are existing technologies such as CN113294299A, CN109653962B, CN105510038B, and CN110005580B disclosed in the prior art. For example, a wind turbine online monitoring system disclosed in the prior art includes an on-site sound sensor, a sound analysis device, an infrared monitoring device, an infrared analysis device, a control device, and an alarm device; the sound sensor is connected to the sound analysis device, and the sound analysis device is connected to the control device; the infrared monitoring device is connected to the infrared analysis device, and the infrared analysis device is connected to the control device; the control device is connected to the alarm device; wherein the sound sensor is fixedly arranged near the rotating main shaft of the wind turbine, and the infrared imager of the infrared monitoring device can move axially in the cabin.

[0004] The present invention is made in order to solve the common problem in the field of incomplete collection of wind turbine status data. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies in the current field and to propose a system for collecting data on the status monitoring of wind turbines.

[0006] In order to overcome the deficiencies of the prior art, the present invention adopts the following technical solutions:

[0007] A system for collecting data on the status monitoring of a wind turbine generator set comprises a mobile detection module that moves relative to a tower of the wind turbine generator set, an image acquisition module disposed on the mobile detection module to acquire images of an outer wall of the tower, a vibration monitoring module that cooperates with the mobile detection module and is used to monitor vibration conditions of the tower, and a drive module that drives the image acquisition module to move so as to monitor different towers.

[0008] The movement detection module includes a casing for being fixed near the tower, a surrounding shell for being matched to a preset distance from the outer wall of the tower, a micro camera device provided on the surrounding shell for acquiring an image of the outer wall of the tower, a lifting mechanism for driving the surrounding shell to move up and down relative to the casing, and a surrounding driving mechanism for driving the surrounding shell to move around the outer wall of the tower, wherein the cross section of the casing is a concave structure, and the concave structure area is the concave area of ​​the casing, and the opening area of ​​the concave area is the concave opening, and the corresponding concave area of ​​the casing is used to match the placement of a part of the tower, and the diameter of the concave opening is greater than the diameter of the tower.

[0009] The surrounding shell is an open-ring structure shell, which can coaxially surround the outside of the outer cylinder wall. The surrounding shell includes an inner ring wall arranged in the inner ring area, an outer ring wall arranged in the outer ring area, an upper ring wall and a lower ring wall.

[0010] Furthermore, the driving mechanism includes an arc-shaped groove of an arc structure arranged on the upper shell wall of the casing, a moving block movably limited on the arc-shaped groove, a fixed seat fixed on the upper block wall of the moving block, a rotating gear at least partially extending from the lower block wall of the moving block, a reduction motor driving the rotating gear to rotate, and an external tooth pattern arranged on the bottom wall of the arc-shaped groove to engage with the rotating gear for transmission. The rotation operation of the rotating gear is driven by the reduction motor to realize the driving of the moving block to move along the arc-shaped groove, and the reduction motor is a bidirectional rotating motor, and then the bidirectional driving operation of the reduction motor is realized to realize the driving of the moving block to move back and forth along the arc-shaped groove.

[0011] Furthermore, the lifting mechanism includes a lifting platform, a horizontal plate horizontally fixed to the upper surface of the lifting platform, a stabilizing rod vertically fixed to the moving block, a linear slide rail vertically fixed to the stabilizing rod, a slider movably engaged with the linear slide rail, and a plurality of connecting rods respectively fixing the slider to the side plate walls of the horizontal plate, the surrounding shell is fixed to the horizontal plate by a lock, and the bottom of the lifting platform is fixed to the fixed seat.

[0012] Furthermore, the image acquisition modules include several micro-camera devices respectively arranged on the inner ring wall and the upper ring wall.

[0013] Furthermore, the driving module is an AGV cart fixed to the bottom of the casing and used to directionally drive the casing to move to positions near different towers. The AGV cart drives the casing to different positions near the tower for monitoring operations according to preset paths and instructions, and the position where the casing reaches the vicinity of the tower and can perform monitoring operations is the monitoring position of the corresponding tower.

[0014] Furthermore, the vibration monitoring module includes a plurality of vibration monitoring units evenly distributed on the inner ring wall of the surrounding shell, wherein each vibration monitoring unit includes a fixed shell fixed to the inner ring wall of the surrounding shell, a matching tube arranged inside the fixed shell, an abutment block that can movably pass through the matching tube and the fixed shell, a flexible pressure sensor laid in the matching tube to monitor the impact force between the abutment block and the matching tube, two linear openings respectively arranged on two oppositely arranged side tube walls of the matching tube, at least two movable plates respectively passing through the linear openings and fixedly connected to different side block walls of the abutment block, and a buffer spring one end of which is fixed inside the fixed shell and the other end is fixedly connected to the movable plate, each movable plate is connected to a buffer spring, and the buffer spring is arranged parallel to the linear opening, and the movable plate is arranged perpendicular to the linear opening.

[0015] The beneficial effects achieved by the present invention are:

[0016] 1. The mobile detection module can monitor different towers and provide a comprehensive understanding of the status of wind turbines, helping staff to promptly identify tower problems and perform timely maintenance and repairs.

[0017] 2. The present invention adopts a contactless monitoring method through a mobile detection module, which does not require any interference with the wind turbine and will not affect its operation, thereby realizing image acquisition under the normal operation of the wind turbine, effectively improving the reliability and accuracy of the system's monitoring data collection.

[0018] 3. The present invention monitors the impact pressure value of the abutment block on the bottom wall of the channel, so that the staff can understand the vibration condition of the wind turbine and take corresponding measures to maintain and repair the wind turbine accordingly to ensure its normal operation and extend its service life. At the same time, the abutment block in the vibration monitoring module can buffer the collision force of the tower under the action of the buffer spring, thereby effectively reducing the damage to the pressure sensor, extending its service life, and improving the reliability and economic benefits of the monitoring data collection of the wind turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but rather the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0020] Figure 1 It is a partial front view schematic diagram of the motion detection module of the present invention.

[0021] Figure 2 It is a schematic top view of a partial structure of the housing of the present invention.

[0022] Figure 3 It is a schematic cross-sectional view of a portion of the structure surrounding the driving mechanism of the present invention.

[0023] Figure 4 It is a structural schematic diagram of a top view of the surrounding shell of the present invention.

[0024] Figure 5 It is a partial structural diagram of the vibration monitoring module of the present invention.

[0025] Figure 6 FIG. 2 is another structural diagram of the vibration monitoring module of the present invention.

[0026] Explanation of the accompanying numbers: 1-linear slide rail; 2-slider; 3-stabilizing rod; 4-moving block; 5-upper shell wall; 6-machine casing; 7-fixed seat; 8-lifting platform; 9-horizontal plate; 10-surrounding shell; 11-connecting rod; 12-external tooth pattern; 13-arc-shaped groove; 14-concave area; 15-rotating gear; 16-reduction motor; 17-cavity; 18-inner ring wall; 19-outer cylinder wall; 20-tower; 21-fixed shell; 22-movable plate; 23-buffer spring; 24-cavity bottom surface; 25-connecting surface; 26-channel bottom wall; 27-internal channel; 28-matching cylinder; 29-through opening; 30-abutment block; 31-probe outlet; 32-working chamber; 33-linear opening. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with its embodiments; it should be pointed out that the specific embodiments described herein are only used to explain the present invention and are not used to limit this case. For those skilled in the art, after reviewing the following detailed description, other systems, methods and / or features of this embodiment will become apparent. In addition, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and cannot be understood as limiting this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0028] Example 1: Combined with the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 and attached Figure 6 This embodiment constructs a system for collecting data on the status monitoring of a wind turbine. The system includes a mobile detection module that moves relative to a tower of the wind turbine, an image acquisition module disposed on the mobile detection module to acquire images of the outer wall of the tower, a vibration monitoring module that cooperates with the mobile detection module to monitor the vibration of the tower, and a drive module that drives the image acquisition module to move so as to monitor different towers.

[0029] The movement detection module includes a casing for being fixed near the tower, a surrounding shell for being matched to a preset distance from the outer wall of the tower, a micro camera device provided on the surrounding shell for acquiring an image of the outer wall of the tower, a lifting mechanism for driving the surrounding shell to be lifted and moved relative to the casing, and a surrounding driving mechanism for driving the surrounding shell to move around the outer wall of the tower, wherein the cross section of the casing is a concave structure, and the concave structure area is the concave area of ​​the casing, and the opening area of ​​the concave area is the concave opening, and the corresponding concave area of ​​the casing is used to match and place a part of the tower, and the diameter of the concave opening is greater than the diameter of the tower;

[0030] The surrounding shell is a shell of an open-loop structure, and the surrounding shell can coaxially surround the outside of the outer cylinder wall. The surrounding driving mechanism includes an arc-shaped groove of an arc structure provided on the upper shell wall of the casing, a moving block movably limited on the arc-shaped groove, a fixing seat fixed to the upper block wall of the moving block, a rotating gear at least partially extending from the lower block wall of the moving block, a reduction motor driving the rotating gear to rotate, and an external tooth pattern provided on the bottom wall of the arc-shaped groove to engage with the rotating gear for transmission, wherein the moving block includes a cavity provided inside the moving block, and a lower block wall provided on the moving block. The reduction motor is arranged in the cavity with a communication port connected to the cavity, the rotating gear is rotatably fixed to the cavity by a rotating shaft, and at least a portion of the rotating gear extends from the communication port to the outside of the moving block to be meshed with the external tooth pattern, wherein the rotating gear is a bevel gear, the external tooth pattern meshes with the rotating gear for transmission, the rotating gear is driven by the reduction motor to rotate so as to drive the moving block to move along the arc-shaped groove, and the reduction motor is a bidirectional rotating motor, thereby driving the moving block to move back and forth along the arc-shaped groove through the bidirectional driving operation of the reduction motor;

[0031] The present invention adopts a contactless monitoring method through a mobile detection module, which does not require any interference with the wind turbine generator set and will not affect its operation, thereby realizing image acquisition under the normal operation of the wind turbine generator set, effectively improving the reliability and accuracy of the system's monitoring data collection.

[0032] Example 2: Combined with the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 and attached Figure 6In addition to the contents of the above embodiments, the lifting mechanism also includes a lifting platform, a horizontal plate horizontally fixed to the upper surface of the lifting platform, a stabilizing rod vertically fixed to the moving block, a linear slide rail vertically fixed to the stabilizing rod, a slider movably fitted on the linear slide rail, and a plurality of connecting rods respectively fixedly connecting the sliders to the side panels of the horizontal plate; when the lifting platform is performing a lifting operation, the slider is driven to move along the linear slide rail, and the connection operation of the connecting rod effectively improves the stability of the horizontal plate during the lifting process;

[0033] The surrounding shell is fixed to the horizontal plate by a locker, and the bottom of the lifting platform is fixed to the fixing seat, wherein the surrounding shell includes an inner ring wall provided in the inner ring area, an outer ring wall provided in the outer ring area, an upper ring wall and a lower ring wall;

[0034] The image acquisition module comprises a plurality of micro-camera devices respectively arranged on the inner ring wall and the upper ring wall;

[0035] The driving module is an AGV trolley fixed to the bottom of the casing and used to directionally drive the casing to move to positions near different towers. The AGV trolley moves along pre-wired wires, ground tapes, or photoelectric navigation lines and other facilities in the wind turbine site according to a preset path and instructions to drive the casing to positions near different towers for monitoring operations. The position where the casing reaches the vicinity of the tower and is capable of performing monitoring operations is the monitoring position of the corresponding tower.

[0036] Specifically, when the system monitors and collects data on a wind turbine, when the housing is driven by the AGV to a monitoring position of a corresponding tower, the recessed area of ​​the housing accommodates a portion of the tower, and the tower, the linear track, and the surrounding housing are coaxially arranged, while the inner ring wall of the surrounding housing and the outer wall of the tower are arranged at a preset monitoring distance.

[0037] Furthermore, in the process of driving the moving block to move along the arc-shaped groove by the surrounding drive mechanism, the surrounding shell is synchronously driven to surround the outer cylinder wall along the same horizontal height range, and under the lifting operation of the lifting mechanism, the surrounding shell is synchronously driven to move vertically along the outer cylinder wall at different horizontal heights. Under the coordinated operation of the surrounding drive mechanism and the lifting drive mechanism, the surrounding shell is driven to relatively cooperate with the monitoring distances of different outer cylinder walls of the tower, thereby realizing the comprehensiveness of the image acquisition module's acquisition of the outer cylinder wall of the tower, so as to ensure the accuracy of the staff's subsequent status monitoring of the wind turbine based on the acquired image.

[0038] Example 3: Combined with the Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 and attached Figure 6 In addition to the contents of the above embodiments, the vibration monitoring module also includes a plurality of vibration monitoring units evenly distributed on the inner ring wall of the surrounding shell, wherein each vibration monitoring unit comprises a fixed shell fixed to the inner ring wall of the surrounding shell, a matching cylinder arranged inside the fixed shell, an abutment block that can movably penetrate the matching cylinder and the fixed shell, a flexible pressure sensor laid in the matching cylinder to monitor the impact force between the abutment block and the matching cylinder, two linear openings respectively arranged on two oppositely arranged side cylinder walls of the matching cylinder, at least two movable plates respectively passing through the linear openings and fixedly connected to different side block walls of the abutment block, and a buffer spring one end of which is fixed inside the fixed shell and the other end is fixedly connected to the movable plate, each movable plate is connected to a buffer spring, and the buffer spring is arranged parallel to the linear opening, and the movable plate is arranged perpendicular to the linear opening;

[0039] The fixed shell includes an internal working chamber, a probe port provided on the shell wall and communicating with the working chamber, a connecting shell wall fixedly connected to the inner ring wall, and a probe shell wall provided with the probe port. The connecting shell wall is arranged opposite to the probe shell wall, and a surface of the connecting shell wall fixed to the inner ring wall serves as a connecting surface of the connecting shell wall, and one surface of the connecting shell wall located inside the working shell serves as a cavity bottom surface of the connecting shell wall. One end of the buffer spring is fixed to the cavity bottom surface.

[0040] The mating cylinder is a cylindrical structure, and the mating cylinder includes an internal channel, a through opening provided on the cylinder wall of the mating cylinder and communicating with the internal channel, and a channel bottom wall provided opposite to the through opening, and the through opening is provided relatively close to the probe outlet, and the abutment block can sequentially pass through the through opening and the probe outlet to the outside of the fixed shell, the mating cylinder is provided in the working chamber, and the probe outlet is provided opposite to the through opening, the buffer spring is provided in parallel with the linear opening, wherein each linear opening is respectively penetrated by a movable plate, the movable plate is provided perpendicular to the linear opening, the abutment block can pass through the mating cylinder back and forth, and the movable plate moves back and forth along the length direction of the linear opening under the drive of the abutment block, and the flexible pressure sensor is provided on the channel bottom wall;

[0041] When the buffer spring is at its natural length without being acted upon by any force, at least a portion of the abutment block extends from the exploration port and the through opening to the outside of the fixed shell, and when the tower of the wind turbine collides with the abutment block during vibration, the abutment block moves toward the bottom wall of the channel, and the buffer spring continuously contracts until the abutment block abuts against the bottom wall of the channel, and at the same time, a pressure sensor located on the bottom wall of the channel monitors the impact pressure value of the abutment block on the bottom wall of the channel;

[0042] The impact pressure value is positively correlated with the vibration intensity during the operation of the wind turbine. Data collection based on the impact pressure value enables workers to monitor the operating status of the wind turbine. At the same time, the movable abutment block and the buffer spring buffer the impact force of the tower, thereby effectively reducing damage to the pressure sensor.

[0043] The present invention monitors the impact pressure value of the abutment block on the bottom wall of the channel, thereby enabling the staff to understand the vibration condition of the wind turbine and take corresponding measures to maintain and repair the wind turbine accordingly, so as to ensure its normal operation and extend its service life. At the same time, the abutment block in the vibration monitoring module can buffer the collision force of the tower under the action of the buffer spring, thereby effectively reducing the damage to the pressure sensor, extending its service life, and improving the reliability and economic benefits of the monitoring data collection of the wind turbine.

[0044] Although the present invention has been described above with reference to various embodiments, it will be appreciated that many changes and modifications may be made without departing from the scope of the present invention. That is, the methods, systems, and devices discussed above are examples. Various configurations may omit, replace, or add various processes or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different from that described, and / or various components may be added, omitted, and / or combined. Moreover, the features described with respect to certain configurations may be combined in various other configurations, such as different aspects and elements of the configurations may be combined in a similar manner. In addition, as technology develops, the elements therein may be updated, i.e., many elements are examples and do not limit the scope of the present disclosure or claims. It will also be appreciated that, after reading the contents of the present invention, a technician may make various changes or modifications to the present invention, and these equivalent changes and modifications also fall within the scope defined by the claims of the present invention.

Claims

1. A system for collecting data on wind turbine status monitoring, characterized in that: The system includes a mobile detection module that moves relative to the tower of the wind turbine generator set, an image acquisition module that is arranged on the mobile detection module to acquire images of the outer wall of the tower, a vibration monitoring module that is arranged in conjunction with the mobile detection module to monitor the vibration of the tower, and a driving module that drives the image acquisition module to move to monitor different towers. The movement detection module includes a casing for being fixed near the tower, a surrounding shell for being matched to a preset distance from the outer wall of the tower, a micro camera device provided on the surrounding shell for acquiring an image of the outer wall of the tower, a lifting mechanism for driving the surrounding shell to move up and down relative to the casing, and a surrounding driving mechanism for driving the surrounding shell to move around the outer wall of the tower, wherein the cross section of the casing is a concave structure, and the concave structure area is the concave area of ​​the casing, and the opening area of ​​the concave area is the concave opening, and the corresponding concave area of ​​the casing is used to match the placement of a part of the tower, and the diameter of the concave opening is greater than the diameter of the tower. The surrounding shell is an open-ring structure shell, which can coaxially surround the outer wall of the outer cylinder, and includes an inner ring wall provided in the inner ring area, an outer ring wall provided in the outer ring area, an upper ring wall and a lower ring wall; The vibration monitoring module includes a plurality of vibration monitoring units evenly distributed on the inner ring wall of the surrounding shell, wherein each vibration monitoring unit includes a fixed shell fixed to the inner ring wall of the surrounding shell, a matching cylinder arranged inside the fixed shell, an abutment block that can movably penetrate the matching cylinder and the fixed shell, a flexible pressure sensor laid in the matching cylinder to monitor the impact force between the abutment block and the matching cylinder, two linear openings respectively arranged on two oppositely arranged side cylinder walls of the matching cylinder, at least two movable plates respectively passing through the linear openings and respectively fixedly connected to different side block walls of the abutment block, and a buffer spring with one end fixed to the inside of the fixed shell and the other end fixedly connected to the movable plate, each movable plate is connected to a buffer spring, and the buffer spring is arranged parallel to the linear opening, and the movable plate is arranged perpendicular to the linear opening; The mating cylinder is a cylindrical structure, and the mating cylinder includes an internal channel, a through opening provided on the cylinder wall of the mating cylinder and communicating with the internal channel, and a channel bottom wall provided opposite to the through opening, and the through opening is provided relatively close to the probe outlet, and the abutment block can sequentially pass through the through opening and the probe outlet to the outside of the fixed shell, the mating cylinder is provided in the working chamber, and the probe outlet is provided opposite to the through opening, the buffer spring is provided in parallel with the linear opening, wherein each linear opening is respectively penetrated by a movable plate, the movable plate is provided perpendicular to the linear opening, the abutment block can pass through the mating cylinder back and forth, and the movable plate moves back and forth along the length direction of the linear opening under the drive of the abutment block, and the flexible pressure sensor is provided on the channel bottom wall; When the buffer spring is at its natural length without being affected by any force, the abutment block at least partially extends from the exploration port and the through opening to the outside of the fixed shell, and when the tower of the wind turbine collides with the abutment block during vibration, the abutment block moves toward the bottom wall of the channel, and the buffer spring continues to contract until the abutment block abuts against the bottom wall of the channel. At the same time, the pressure sensor located on the bottom wall of the channel monitors the impact pressure value of the abutment block on the bottom wall of the channel.

2. The system for collecting wind turbine status monitoring data according to claim 1, characterized in that: The driving mechanism includes an arc-shaped groove of an arc structure provided on the upper shell wall of the casing, a moving block movably limited on the arc-shaped groove, a fixing seat fixed on the upper block wall of the moving block, a rotating gear at least partially extending from the lower block wall of the moving block, a reduction motor driving the rotating gear to rotate, and an external tooth pattern provided on the bottom wall of the arc-shaped groove to engage with the rotating gear for transmission. The reduction motor drives the rotating gear to rotate so as to realize the driving of the moving block to move along the arc-shaped groove, and the reduction motor is a bidirectional rotating motor, and then the bidirectional driving operation of the reduction motor realizes the driving of the moving block to move back and forth along the arc-shaped groove.

3. The system for collecting wind turbine status monitoring data according to claim 2, characterized in that: The lifting mechanism includes a lifting platform, a horizontal plate horizontally fixed to the upper surface of the lifting platform, a stabilizing rod vertically fixed to the moving block, a linear slide rail vertically fixed to the stabilizing rod, a slider movably engaged with the linear slide rail, and a plurality of connecting rods respectively fixedly connecting the slider to the side plate wall of the horizontal plate. The surrounding shell is fixed to the horizontal plate by a lock, and the bottom of the lifting platform is fixed to the fixed seat.

4. The system for collecting wind turbine status monitoring data according to claim 3, characterized in that: The image acquisition module includes a plurality of micro camera devices respectively arranged on the inner ring wall and the upper ring wall.

5. The system for collecting wind turbine status monitoring data according to claim 4, characterized in that: The driving module is an AGV trolley fixed to the bottom of the casing and used to directionally drive the casing to move to positions near different towers. The AGV trolley drives the casing to different positions near the tower for monitoring operations according to preset paths and instructions, and the position where the casing reaches the vicinity of the tower and can perform monitoring operations is the monitoring position of the corresponding tower.

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