Installation method of fan tower shaking monitoring equipment and readable medium

Abstract

The invention provides an installation and verification method for fan tower monitoring equipment, and the method comprises the steps: an installation stage: quickly positioning a reference point and a diameter based on a crawling ladder cross frame, and guaranteeing that multiple layers of installation points are collinear through a chord length-diameter proportion model (# imgabs0 #); in the verification stage, the installation precision is guaranteed through coplanar height verification (# imgabs 1 #) and a cone differential formula (# imgabs 2 #). The defects that in the prior art, customization efficiency is low and colinearity is poor are overcome, and universal, accurate and safe standardized installation is achieved.

Description

Technical Field

[0001] This invention relates to wind turbine structural safety monitoring technology, specifically to the field of structural health monitoring of wind turbine towers. As the core load-bearing structure supporting the wind turbine, the tower's sway status is directly related to wind turbine safety. This invention focuses on addressing the issues of accurate installation and positioning of tower sway monitoring equipment, as well as verifying the reliability of installation results, to ensure that monitoring data accurately reflects the overall tower sway status. Background Art

[0002] Wind power generation, as an important clean energy source, is widely used worldwide. As the key load-bearing structure supporting the entire wind turbine, the structural health of the wind turbine tower is directly related to the safe and stable operation and service life of the wind turbine. During operation, the wind turbine is subjected to a variety of complex dynamic loads such as wind loads, blade rotation, and tower vortex-induced vibrations, causing the tower to sway to varying degrees. Excessive sway not only accelerates fatigue damage to the tower structure and reduces its service life, but in severe cases may even lead to catastrophic accidents such as tower collapse, resulting in huge economic losses and safety risks. Therefore, real-time and accurate monitoring of the sway status of the wind turbine tower is an important means to ensure the safe and efficient operation of wind farms.

[0003] Currently, due to various limitations such as manufacturing, transportation, and hoisting, towers are typically divided horizontally into 3-5 sections, connected by large flanges and high-strength prestressed bolts. Each section of the tower is a conical cone. Sway monitoring for wind turbine towers typically requires installing sway monitoring equipment in different sections to capture the tower's sway trajectory and posture in real time. For a 5-section tower, for example, the installation diagram of the sway monitoring equipment is shown below. Figure 2 As shown in the figure, 5 monitoring devices are installed at different floor heights. The installation points of the devices at different floor heights are required to be on the same straight line. Otherwise, the sway center points will be inconsistent, and the calculated sway displacement and trajectory will not be able to truly and effectively reflect the sway posture of the entire tower.

[0004] There are many restrictions on the equipment's installation location. For example, it cannot be placed within a ladder support frame to prevent maintenance personnel from climbing up and down the ladder and getting caught on the equipment; it should not be placed too low from the maintenance platform to prevent maintenance personnel from accidentally hitting it; it should not be too high from the maintenance platform to prevent installation, construction, and maintenance. It should be placed between the ladder and the wiring trough as much as possible to facilitate installation, installation, and wiring. The structure of each layer in the tower of different wind farms and different models is different. To ensure that the installation points on each layer are in a straight line, customized installation plans are often required for different environments. This is time-consuming, labor-intensive, and inefficient. A universal monitoring equipment installation solution is urgently needed to ensure simple, efficient, and reliable measurement of installation points. Summary of the Invention

[0005] In view of the technical defects and technical drawbacks existing in the prior art, the embodiments of the present invention provide an installation method and a readable medium for a wind turbine tower sway monitoring device that overcomes or at least partially solves the above problems. The specific solution is as follows:

[0006] As a first aspect of the present invention, a method for installing a wind turbine tower sway monitoring device is provided, comprising:

[0007] S1, on each floor of the wind turbine tower, determine the reference point B and the diameter D of the cross section where it is located based on the center point of the ladder stepping crossbeam; S2, based on the reference point B and diameter D, using the constant ratio of the chord length to the diameter corresponding to the same central angle, determine the installation point M on each floor, so that all installation points (M1 to M2) are n ) are located on a straight line.

[0008] Furthermore, in S1, determining the reference point B specifically includes:

[0009] Measure the length between the two end points E and F of the ladder rung to find the center point G of EF;

[0010] Determine the center O of the cross section where the cross frame is located. Using the characteristic that OG is perpendicular to EF, obtain points A and B by intersecting the extended line of OG with the inner wall of the tower, where AB is the cross section diameter D and point B is the reference point.

[0011] Furthermore, the method further includes verifying that AB is perpendicular to EF using a measuring tool, wherein the measuring tool includes at least one of a protractor, a tripod, a level and a laser pointer.

[0012] Furthermore, in S2, the ratio constant characteristic is expressed as , where i is the layer number and k is a constant. Based on the known installation point position and corresponding diameter of any layer, after calculating the k value, the installation points of other layers can be calculated.

[0013] Furthermore, the value of k is based on the circular geometric characteristics of the tower cross section. The central angle θ formed by the straight line where all installation points are located and the reference point is constant, satisfying the relationship , where k is a constant related to the central angle θ, which is preset by the tower design parameters or determined based on the spatial geometric relationship between the straight line connecting the installation points and the reference points.

[0014] Furthermore, the method further includes: after determining the installation point M, performing installation verification, the verification including:

[0015] Verify whether the installation point M and the reference point B are on the same horizontal plane, based on the formula , simplified to ,pass Verify whether the position of point M found based on point B is accurate, that is, whether the two are on the horizontal cross section, where: is the height of point B from the maintenance platform, D is the height of point M from the maintenance platform. p To maintain the platform diameter, is the diameter of the cross section where the mounting point M is measured.

[0016] Furthermore, the method further comprises:

[0017] Based on the segmented conical characteristics of the tower, the formula , confirm the diameter D M The accuracy of the tower is as follows: H is the height of a single tower section, D is 底 is the bottom diameter of a single tower section, D 顶 is the top diameter of a single tower section, and H, D 底 、D 顶 are the known tower specifications.

[0018] Furthermore, D p It is obtained by laser pointer measurement, and the verification process includes taking multiple measurements within the maintenance platform height range to eliminate errors.

[0019] Furthermore, the height range of the ladder stepping cross frame selected in S1 is determined based on the position of the maintenance platform to avoid the ladder support frame and facilitate installation and maintenance.

[0020] As a second aspect of the present invention, a computer-readable medium is provided, on which a computer program is stored, wherein when the program is executed by a processor, the steps in the installation method of the wind turbine tower sway monitoring device as described above are implemented.

[0021] The present invention has the following beneficial effects:

[0022] 1. Abandoning traditional customized installation solutions, the geometric characteristics of the ladder cross frame and the conical shape of the tower are utilized to establish a standardized reference point positioning and proportion transfer mechanism, achieving "one set of methods for global adaptation" of different tower models, and completely solving the problem of repeated design solutions caused by differences in the internal structure of the tower.

[0023] 2. The first full-process precision control chain of "geometric positioning - proportional calculation - two-dimensional verification" is pioneered. The spatial location of the installation point is quickly determined based on reference points, and the central angle chord length proportional model is used to ensure strict collinearity of multiple layers of equipment. Combined with height plane verification and theoretical diameter value verification, this dual guarantee ensures the reliability of the installation results, fundamentally eliminating trajectory calculation distortion caused by human experience errors and measurement tool limitations. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1A flowchart of a method for installing a wind turbine tower sway monitoring device provided by an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the installation of a wind turbine tower sway monitoring device provided in an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of obtaining device installation reference points provided by an embodiment of the present invention;

[0027] Figure 4 A cross-sectional projection diagram of the installation point of the wind turbine tower sway monitoring device provided in an embodiment of the present invention;

[0028] Figure 5 This is a vertical cross-sectional projection diagram of a single-section wind turbine tower provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] To enable those skilled in the art to better understand the technical solutions of the present invention, exemplary embodiments of the present invention are described below in conjunction with the accompanying drawings, including various details of the embodiments of the present invention to facilitate understanding. These details should be considered merely exemplary. Therefore, those skilled in the art should recognize that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0031] In the absence of conflict, the various embodiments of the present invention and the various features therein may be combined with each other.

[0032] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0033] The terms used herein are only used to describe specific embodiments and are not intended to limit the present invention. As used herein, the singular forms "a" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise. It will also be understood that when the terms "comprising" and / or "made of" are used in this specification, the presence of the features, wholes, steps, operations, elements and / or components is specified, but the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof is not excluded. Similar words such as "connected" or "connected" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0034] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and the present invention, and will not be interpreted as having an idealized or overly formal meaning unless expressly defined as such herein.

[0035] In the technical solution of the present invention, the collection, storage, use, processing, transmission, provision and disclosure of user personal information involved are in compliance with the provisions of relevant laws and regulations and do not violate public order and good morals. The use of user data in this technical solution complies with relevant national laws and regulations (for example, the "Information Security Technology Personal Information Security Specification", etc.). For example: corresponding prescribed measures are taken to control access to personal information; the display of personal information is subject to prescribed restrictions; the purpose of using personal information does not exceed the scope of direct or reasonable connection; when using personal information, clear identity reference is eliminated to avoid precise positioning of specific individuals.

[0036] In order to solve at least one of the technical problems existing in the above-mentioned related technologies, the present invention provides an installation method of a wind turbine tower sway monitoring device. Figure 1 A schematic flow chart of a method for installing a wind turbine tower sway monitoring device provided in an embodiment of the present invention includes:

[0037] S1, on each floor of the wind turbine tower, determine the reference point B and the diameter D of the cross section where it is located based on the center point of the ladder stepping crossbeam; S2, based on the reference point B and diameter D, using the constant ratio of the chord length to the diameter corresponding to the same central angle, determine the installation point M on each floor, so that all installation points (M1 to M2) are n ) are located on a straight line.

[0038] This invention overcomes the bottleneck of existing technologies that require customized installation solutions. Through a two-stage standardized process (reference point positioning → scale calculation), universal installation across tower models is achieved. While existing technologies require time-consuming redesign of positioning solutions for different wind farms, this invention significantly shortens installation preparation time and improves the accuracy of installation point alignment.

[0039] In some embodiments, in S1, determining the reference point B specifically includes:

[0040] Measure the length between the two end points E and F of the ladder tread to find the center point G between E and F;

[0041] Determine the center O of the cross section where the cross frame is located. Using the characteristic that OG is perpendicular to EF, obtain points A and B by intersecting the extended line of OG with the inner wall of the tower, where AB is the cross section diameter D and point B is the reference point.

[0042] In this embodiment, the inherent geometric characteristics of the ladder crossbar (EF→G→OG⊥EF→AB) are utilized to establish a rapid positioning path, addressing the existing measurement blind spots caused by obstructions within the tower (cable ducts, brackets). Compared to the time-consuming point-by-point scanning of each floor by traditional total stations, this method can locate reference points on each floor in a fraction of the time, significantly improving efficiency.

[0043] In some embodiments, the method further comprises verifying that AB is perpendicular to EF using a measuring tool, the measuring tool comprising at least one of a protractor, a tripod, a level, and a laser pointer.

[0044] In the above embodiment, a three-dimensional space verification system can be constructed through multi-tool collaborative verification (protractor + laser pen + level), overcoming the problem that single-tool measurement in the existing technology is easily disturbed by the tower surface.

[0045] In some embodiments, in S2, the ratio constant characteristic is expressed as , where i is the layer number and k is a constant. Based on the known mounting point position and corresponding diameter of any layer, after calculating the k value, the mounting points of other layers can be calculated. For example, the k value is calculated by the known mounting point position of any selected layer i, and then the diameter D of other layers j is calculated. j Calculate the chord length B j M j =k·D j , thereby determining the installation point M j Position to ensure that all layer mounting points are collinear.

[0046] The value of k is based on the circular geometric characteristics of the tower cross section. The central angle θ formed by the straight line where all installation points are located and the reference point is constant, satisfying the relationship , where k is a constant related to the central angle θ, which is preset by the tower design parameters or determined based on the spatial geometric relationship between the straight line connecting the installation points and the reference points.

[0047] In the above embodiment, a quantitative transfer model of k=sin(θ / 2) is established to solve the problem of cumulative deviation amplification caused by the existing technology relying on manual experience to estimate the installation point. At the same time, a dual-path center angle acquisition mechanism is provided to take into account the pre-calibration requirements in the design stage and the dynamic adjustment requirements in the installation stage, breaking through the limitation of the existing technology that can only rely on design drawings. When the diameter deviation is caused by the manufacturing tolerance of the tower (such as D 实 =3.5m vs D 设 =3.45m), the k value can be corrected in real time by measuring θ to avoid systematic offset of the installation point.

[0048] In some embodiments, the method further includes: after determining the installation point M, performing installation verification, the verification including:

[0049] Verify whether the installation point M and the reference point B are on the same horizontal plane, based on the formula , simplified to h M =h B ,pass Verify whether the position of point M found based on point B is accurate, that is, whether the two are on the horizontal cross section, where: is the height of point B from the maintenance platform, D is the height of point M from the maintenance platform. p To maintain the platform diameter, is the diameter of the cross section where the mounting point M is measured.

[0050] In the above embodiment, the M / B point co-planar verification method (h M =h B ), solves the hidden danger of the existing technology being unable to detect the vertical misalignment of the installation point. The traditional method ignores the cross-sectional inclination (the inclination angle of the conical tower is 1-3 degrees), resulting in a large height difference between the installation points on the same floor. This method uses the formula Achieve sub-millimeter coplanarity control.

[0051] In some embodiments, the method further comprises:

[0052] Based on the segmented conical characteristics of the tower, the formula , confirm the diameter D M The accuracy of the tower is as follows: H is the height of a single tower section, D is 底 is the bottom diameter of a single tower section, D 顶 is the top diameter of a single tower section, and H, D 底 、D 顶 are the known tower specifications.

[0053] In the above embodiment, based on the cone differential similarity principle Build a diameter verification model to overcome the pain point that existing technology cannot verify the authenticity of diameter measurements.

[0054] In some embodiments, D p It is obtained by laser pointer measurement, and the verification process includes taking multiple measurements within the maintenance platform height range to eliminate errors.

[0055] In the above embodiment, the tower ovality error is eliminated by using a multi-measurement-point dynamic averaging method.

[0056] In some embodiments, the height range of the ladder stepping cross frame selected in S1 is determined based on the position of the maintenance platform to avoid the ladder support frame and facilitate installation and maintenance.

[0057] Take a 5-section tower as an example:

[0058] refer to Figure 3-4 As shown, in some embodiments, the present invention provides a method for installing a wind turbine tower sway monitoring device, comprising:

[0059] (1) Determine the reference point and diameter: The tower has a ladder from the bottom to the top. The two edge lines of the ladder are straight lines. Select a suitable installation height range on the maintenance platform of each floor. Select a ladder stepping frame within this height range. The cross section is a circle with O as its center. Figure 3 Within the height range of each maintenance platform, select a ladder stepping crossbeam (such as section EF). Measure the lengths of endpoints E and F and find the center point G of EF. Since OG ⊥ EF (O is the center of the cross section), the extended lines of OG intersect the inner wall of the tower at points A and B, respectively. Therefore, the length of AB is the diameter D of the cross section (D is measured using a tripod, level, and laser pointer). The diameter is the longest chord between two points on the circumference. Based on this characteristic, use a tripod, level, and laser pointer to find points A and B. Point B is the reference point for the installation location. Using the AB ⊥ EF characteristic, use a protractor to verify the accuracy of point AB. Using this method, find the reference points B1, B2, B3, B4, and B5 for the equipment installation location on each floor, as well as the diameters D1, D2, D3, D4, and D5 of the cross sections where the reference points are located. Points B1, B2, B3, B4, and B5 are in a straight line.

[0060] (2) Determine the installation point: Reference Figure 4 , based on the reference points B1, B2, B3, B4, B5 of each layer, find the final installation points M1, M2, M3, M4, M5. Figure 3As shown, each cross section of the tower is a circle with overlapping centers. For any circle, the ratio of the chord length to the diameter corresponding to the same central angle is always ,Right now

[0061]

[0062] Then, the installation points of other layers can be known based on the installation points of any layer.

[0063] In the above method, a suitable installation height range is selected on the maintenance platform of each floor, and a ladder step frame is selected within this height range. The reference point of the installation point and the diameter of the cross section thereof are measured using the center point of the ladder step frame. Then, the ratio of the chord length to the diameter corresponding to the same central angle is the same. This characteristic can be used to find the installation points of other floors based on the installation points of any floor. Therefore, the installation points can be flexibly found according to the actual internal environment of the tower, and the operation is simple and efficient.

[0064] refer to Figure 5 As shown, in some embodiments, the present invention provides an installation verification method for a wind turbine tower sway detection device, which is used to verify whether the installation point and the diameter of the cross section where the installation point is located measured in the above installation scheme are accurate. The wind turbine tower is a segmented conical design, and the vertical cross section of each tower section is an isosceles trapezoid, such as Figure 5 As shown. According to the characteristic that the ratio of the height of each layer of the cone to the change in diameter Δh / ΔD is equal, we can know that:

[0065]

[0066] based on That is It can be verified whether the position of point M found based on point B is accurate and whether the two are on the horizontal cross section; It is possible to verify that the diameter of the cross section at the measured mounting point is accurate.

[0067] An embodiment of the present invention further provides a computer-readable medium. The computer-readable medium stores a computer program, wherein, when executed by a processor, the program implements the steps of the method for installing a wind turbine tower sway monitoring device as described in any of the above embodiments. The computer-readable storage medium can be volatile or non-volatile.

[0068] An embodiment of the present invention also provides a computer program product, including computer-readable code, or a non-volatile computer-readable storage medium carrying computer-readable code. When the computer-readable code runs in a processor of an electronic device, the processor in the electronic device executes the above-mentioned installation method of the wind turbine tower sway monitoring device.

[0069] Those skilled in the art will appreciate that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, or appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed collaboratively by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable storage medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or transient medium).

[0070] As is known to those skilled in the art, the term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information, such as computer-readable program instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), static random access memory (SRAM), flash memory or other memory technology, portable compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and that can be accessed by a computer. Furthermore, as is known to those skilled in the art, communication media typically embodies computer-readable program instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0071] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions to be stored in the computer-readable storage medium in each computing / processing device.

[0072] The computer program instructions for performing the operations of the present invention may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The computer-readable program instructions may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, the state information of the computer-readable program instructions is used to personalize an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), so that the electronic circuit can execute the computer-readable program instructions, thereby implementing various aspects of the present invention.

[0073] The computer program product described herein may be implemented in hardware, software, or a combination thereof. In one embodiment, the computer program product is implemented as a computer storage medium. In another embodiment, the computer program product is implemented as a software product, such as a software development kit (SDK).

[0074] Various aspects of the present invention are described herein with reference to flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present invention. It should be understood that each block of the flowcharts and / or block diagrams, and combinations of blocks in the flowcharts and / or block diagrams, can be implemented by computer-readable program instructions.

[0075] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device is generated that implements the functions / actions specified in one or more blocks in the flowchart and / or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium, where these instructions cause the computer, programmable data processing device, and / or other device to operate in a specific manner. Thus, the computer-readable medium storing the instructions comprises an article of manufacture that includes instructions for implementing various aspects of the functions / actions specified in one or more blocks in the flowchart and / or block diagram.

[0076] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operational steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more blocks in the flowchart and / or block diagram.

[0077] The flow charts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the systems, methods and computer program products according to multiple embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a part of a module, program segment or instruction, and the part of the module, program segment or instruction includes one or more executable instructions for realizing the logical function of the specification. In some alternative implementations, the functions marked in the box can also occur in a sequence different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs the function or action of the specification, or can be implemented with a combination of dedicated hardware and computer instructions.

[0078] Example embodiments have been disclosed herein, and although specific terms are employed, they are used and should be interpreted only in a general illustrative sense and not for purposes of limitation. In some instances, it will be apparent to those skilled in the art that, unless otherwise expressly indicated, features, characteristics, and / or elements described in conjunction with a particular embodiment may be used alone or in combination with features, characteristics, and / or elements described in conjunction with other embodiments. Therefore, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the scope of the invention as set forth in the appended claims.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for installing a wind turbine tower sway monitoring device, characterized in that: include: S1. On each floor of the wind turbine tower, determine the reference point B and the diameter D of the cross section in which it is located based on the center point of the ladder stepping crossbeam. S2. Based on the reference point B and diameter D, and taking advantage of the constant ratio of the chord length to the diameter corresponding to the same central angle, determine the installation point M on each floor so that all installation points are located on a straight line.

2. The installation method of the wind turbine tower sway monitoring device according to claim 1 is characterized in that: In S1, determining the reference point B specifically includes: Measure the length between the two end points E and F of the ladder rung to find the center point G of EF; Determine the center O of the cross section where the cross frame is located. Using the characteristic that OG is perpendicular to EF, obtain points A and B by intersecting the extended line of OG with the inner wall of the tower, where AB is the cross section diameter D and point B is the reference point.

3. The installation method of the wind turbine tower sway monitoring device according to claim 2, characterized in that: The method further includes verifying that AB is perpendicular to EF using a measuring tool, the measuring tool comprising at least one of a protractor, a tripod, a level, and a laser pointer.

4. The installation method of the wind turbine tower sway monitoring device according to claim 1, characterized in that: In S2, the ratio constant characteristic is expressed as , where i is the layer number and k is a constant. Based on the known installation point position and corresponding diameter of any layer, after calculating the k value, the installation points of other layers can be calculated.

5. The installation method of the wind turbine tower sway monitoring device according to claim 4 is characterized in that: The value of k is based on the circular geometric characteristics of the tower cross section. The central angle θ formed by the straight line where all installation points are located and the reference point is constant, satisfying the relationship , where k is a constant related to the central angle θ, which is preset by the tower design parameters or determined based on the spatial geometric relationship between the straight line connecting the installation points and the reference points.

6. The installation method of the wind turbine tower sway monitoring device according to claim 4, characterized in that: The method further includes: after determining the installation point M, performing installation verification, the verification including: Verify whether the installation point M and the reference point B are on the same horizontal plane, based on the formula , simplified to ,pass Verify whether the position of point M found based on point B is accurate, that is, whether the two are on the horizontal cross section. is the height of point B from the maintenance platform, D is the height of point M from the maintenance platform. p To maintain the platform diameter, is the diameter of the cross section where the mounting point M is measured.

7. The installation method of the wind turbine tower sway monitoring device according to claim 6, characterized in that: The method further comprises: Based on the segmented conical characteristics of the tower, the formula , confirm the diameter D M The accuracy of the tower is as follows: H is the height of a single tower section, D 底 is the bottom diameter of a single tower section, D 顶 is the top diameter of a single tower section, and H, D 底 、D 顶 are the known tower specifications.

8. The installation method of the wind turbine tower sway monitoring device according to claim 7, characterized in that: D p It is obtained by laser pointer measurement, and the verification process includes taking multiple measurements within the maintenance platform height range to eliminate errors.

9. The installation method of the wind turbine tower sway monitoring device according to claim 1, characterized in that: The height range of the ladder stepping cross frame selected in S1 is determined based on the position of the maintenance platform to avoid the ladder support frame and facilitate installation and maintenance.

10. A computer-readable medium, characterized in that The computer-readable medium stores a computer program, wherein when the program is executed by a processor, the steps in the method for installing a wind turbine tower sway monitoring device as claimed in any one of claims 1 to 9 are implemented.

Images