Single-layer three-cable flexible photovoltaic support

Abstract

The invention relates to a single-layer three-cable flexible photovoltaic support which comprises side stand columns, a cross beam, a first upper bearing cable, a second upper bearing cable, a middle bearing cable, a stable supporting assembly, a photovoltaic assembly, a lower bearing cable and an anchoring inhaul cable. The side columns are arranged at two ends of each row of photovoltaic modules, and the crossbeams are arranged at the top ends of the side columns. The first upper load-bearing cable is higher than the second upper load-bearing cable to form an inclined plane for mounting the photovoltaic module, and the middle load-bearing cable and the lower load-bearing cable are lower than the first upper load-bearing cable and the second upper load-bearing cable. The first upper load-bearing cable, the middle load-bearing cable and the lower load-bearing cable are connected through the stable supporting assembly in the transverse direction. Compared with the prior art, a stable space structure is formed by reasonably setting the height and the connection mode of the bearing cables, the stability and reasonability problems of the photovoltaic support under the large-span and large-dip-angle conditions are effectively solved, and the photovoltaic support is suitable for various terrain and environment conditions, especially suitable for special areas such as tea gardens and the like and has a wide application prospect. And wide application of the photovoltaic technology is promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaics, and more particularly to a single-layer three-cable flexible photovoltaic support. Background Art

[0002] With the development of the photovoltaic industry, the application scenarios of photovoltaics have become increasingly extensive. Flexible photovoltaic supports have been more deeply studied and developed due to their stronger environmental adaptability and larger operating space. This poses higher requirements for the structural design of photovoltaic supports. How to maximize the structural stability and layout rationality of flexible photovoltaic supports under the condition of a specific large inclination angle of photovoltaic panels has become a difficult problem in the photovoltaic flexible support industry. Currently, there are other industries within the scope of many photovoltaic project construction sites that can complement each other, such as "fish and photovoltaic complementarity", "agriculture and photovoltaic complementarity", "sewage treatment plant + photovoltaic", etc. in existing project cases, but there are no relevant cases for photovoltaic projects in tea gardens. The "photovoltaic + tea garden" industry has the dual advantages of power generation and tea production. Due to the "shade-loving" characteristics of tea garden growth, this industry has the advantage of achieving 1+1>2.

[0003] When promoting photovoltaic projects in tea garden production areas, it is necessary to consider the unique environmental conditions and usage requirements of tea gardens. Tea gardens usually have relatively complex topographies, such as large slopes and irregular terrains, which pose higher requirements for the stability and applicability of photovoltaic supports. When setting up photovoltaic projects in tea garden areas, it is also necessary to fully consider risk management and safety issues. Because the terrain of tea gardens is changeable and easily affected by the natural environment, such as wind and rain, geological disasters, etc. Therefore, the design of photovoltaic supports needs to have good wind resistance and seismic resistance to ensure the safe and stable operation of the equipment. In addition, promoting photovoltaic projects in tea garden areas can effectively utilize the clear space above the tea gardens, realizing the complementary symbiosis of photovoltaics and tea gardens while not affecting the growth and picking of tea by large machinery, and promoting the diversified development of the local economy. At the same time, photovoltaic power generation can provide clean energy for tea gardens, reduce dependence on traditional energy, lower production costs, and improve the yield and quality of tea. Due to the uniqueness of its structure, flexible supports have a very wide range of application scenarios and can be widely applied to similar scenarios such as sewage treatment plants, agriculture and photovoltaic complementarity, fish and photovoltaic complementarity, mountain photovoltaic, and parking lot photovoltaic.

[0004] In China, Guoli Yinghe, China National Machinery Zhejiang Company, Tongwei, Trina Solar, Beijing Zhongke Zhongdian, Shanxi Institute, Hebei Energy Institute, Harbin Institute of Technology, Southeast University, etc. all have relevant project applications or technical research. The papers of Zhejiang University involve the research on the photosynthetic activity of tea trees in photovoltaic tea gardens, the microclimate environment, tea yield and quality, and the correlation between the arrangement of photovoltaic panels and the light environment of the tea tree canopy (Zheng Rongjin, Research and Application of High-Efficiency Cultivation Facilities for Tea-Light Complementary. Zhejiang Province, Zhejiang University, December 15, 2019.); In the existing patent "A Large-Span Flexible Photovoltaic Bracket Based on Complex Terrain", a solution is provided to solve the large-span problem, but the overall steel consumption is relatively large (China Application: 202410428965.4); In a photovoltaic flexible bracket structure, a flexible bracket structure is also provided, but this structure is relatively complex and not convenient for large machinery to work (China Application: 202410624525.6).

[0005] For traditional fixed photovoltaic brackets in tea gardens, they have the advantages of high bracket stability and strong load-bearing capacity, and are suitable for flat ground and sites with low inclination angles. However, they have certain limitations in large slopes and complex terrain and landforms, and at the same time, the construction cost is relatively high. In order to adapt to the complex terrain and landforms of tea gardens and improve the photovoltaic power generation efficiency, more and more tea garden photovoltaic projects are now adopting flexible brackets. Flexible brackets are made of lightweight materials, have strong adaptability and adjustability, can cope with large slopes and irregular terrains in tea gardens, and can achieve the best tilt angle of photovoltaic modules to obtain the maximum power generation.

[0006] Existing flexible photovoltaic brackets are difficult to simultaneously meet the requirements of structural stability and layout rationality under large inclination angle conditions; the structure and quantity of the stable support assembly of existing flexible photovoltaic brackets need to be further optimized to better support the load-bearing assembly and improve the overall stiffness and stability; the support structure design of existing flexible photovoltaic brackets still needs to be optimized to improve its load-bearing capacity and stability; existing flexible photovoltaic brackets have certain limitations under complex terrain and large slope conditions and are difficult to adapt to complex environments such as tea gardens; under the influence of natural environments such as wind and rain and geological disasters, the wind resistance and seismic resistance of existing flexible photovoltaic brackets need to be improved.

[0007] Therefore, it is urgent to combine the characteristics of tea garden areas and design a single-layer three-cable flexible photovoltaic bracket structure that is particularly suitable for tea gardens. This bracket structure should not only be able to adapt to the complex terrain and landforms of tea gardens, but also effectively improve the photovoltaic power generation efficiency, so as to promote the development of the clean energy industry in tea garden areas. Summary of the Invention

[0008] The object of the present invention is to overcome the defects of the above-mentioned existing technologies and provide a single-layer three-cable flexible photovoltaic support, which solves the problem that it is difficult to achieve due to the too large inclination angle of the photovoltaic module, and improves the problem that the photovoltaic panel meets the demand of a larger inclination angle. At the same time, it also solves the problem that it is difficult to achieve stability due to the large span when the photovoltaic module panel is placed vertically, and realizes the stability and non-displacement of the photovoltaic module on the flexible cable.

[0009] The object of the present invention can be achieved by the following technical solutions:

[0010] The present invention provides a single-layer three-cable flexible photovoltaic support for large-inclination photovoltaic installation scenarios, including side columns, cross beams, a first upper load-bearing cable, a second upper load-bearing cable, an intermediate load-bearing cable, a stable support assembly, a photovoltaic module, a lower load-bearing cable, and an anchor cable;

[0011] The anchor cable is connected to the side column for anchoring the side column;

[0012] The side columns are arranged at both ends of each row of photovoltaic modules, the cross beam is fixedly connected to the top of the side column, and the cross beam extends horizontally and is connected to multiple columns;

[0013] The first upper load-bearing cable and the second upper load-bearing cable are respectively connected to the cross beam in the direction of the cross beam, and the first upper load-bearing cable is higher than the second upper load-bearing cable, thereby forming an inclined plane for installing the photovoltaic module, and the intermediate load-bearing cable and the lower load-bearing cable are lower than the first upper load-bearing cable and the second upper load-bearing cable;

[0014] The stable support assembly is a steel frame body composed of multiple triangular steel frames spliced horizontally. The stable support assembly is respectively connected to the first upper load-bearing cable, the intermediate load-bearing cable, and the lower load-bearing cable, and the stable support assembly is fixedly connected to the side column;

[0015] The lower load-bearing cable is fixed on the anchor cable, and the photovoltaic module is simultaneously fixed on the first upper load-bearing cable, the second upper load-bearing cable, and the intermediate load-bearing cable, and the inclined plane faces the sunlight direction.

[0016] Further, the side columns are arranged in two columns at both ends of each row of photovoltaic modules, and the tops of each column of side columns are fixedly connected by a cross beam;

[0017] The first upper load-bearing cable, the second upper load-bearing cable, the intermediate load-bearing cable, and the lower load-bearing cable together form a load-bearing assembly, and the load-bearing assembly spans two rows of cross beams and is provided with several groups.

[0018] Further, the first upper load-bearing cable, the intermediate load-bearing cable, and the lower load-bearing cable are all steel strands, and the first upper load-bearing cable is located north of the second upper load-bearing cable.

[0019] Further, several groups of the stable support assemblies are provided in the east-west direction, and the stable support assemblies are fixedly connected to the first upper load-bearing cable, the intermediate load-bearing cable, and the lower load-bearing cable through anchors or fasteners.

[0020] Further, the lower load-bearing cable is simultaneously connected to the stable support assembly and the side column, and is used to fix the overall photovoltaic support structure and restrict the displacement of the overall photovoltaic support structure when subjected to external loads.

[0021] Further, the first upper load-bearing cable and the second upper load-bearing cable are respectively connected to the intermediate load-bearing cable and the stable support assembly. The first upper load-bearing cable and the second upper load-bearing cable are used to directly bear the photovoltaic panel load and maintain the stability of the overall photovoltaic support structure.

[0022] Further, the side column and the cross beam are respectively connected to the upper load-bearing cable, the intermediate load-bearing cable, and the lower load-bearing cable. The side column and the cross beam are used to transfer loads and anchor, and the upper load-bearing cable, the intermediate load-bearing cable, and the lower load-bearing cable are connected to the column and the cross beam through bolts.

[0023] Further, the stable support assembly is used to maintain the stability of the overall photovoltaic support structure and, after tensioning the prestress, is used to restrict the deformation generated when the photovoltaic panel load acts on the component cable;

[0024] A cushion block is provided at the contact position between the lower load-bearing cable and the cross beam.

[0025] Further, multiple side columns are arranged from south to north at the west end and the east end of the photovoltaic module array. The cross beam is fixedly connected to the top of each column of side columns, and the stable support assembly is connected to multiple columns of cross beams.

[0026] Further, by tensioning the upper load-bearing cable, the intermediate load-bearing cable, and the lower load-bearing cable between the side columns, the horizontal and torsional movements of the photovoltaic modules under wind loads are reduced, and the stability of the overall photovoltaic support structure is enhanced.

[0027] The main principle of the present invention is as follows: by providing side columns, cross beams, load-bearing assemblies, and stable support assemblies, an inclined surface facing the sunlight direction is formed by the first upper load-bearing cable being higher than the second upper load-bearing cable, ensuring that the photovoltaic modules obtain better illumination. At the same time, the stable support assembly forms a space triangular system, enhancing the stability of the support, reducing the steel consumption, realizing the efficient use of materials, and the components are tightly connected, effectively transferring loads and anchoring, resisting external forces, ensuring the stability of the photovoltaic modules without displacement, and solving the problems of stability and rationality of large-span and large-inclination photovoltaic supports.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention effectively solves the problems of the stability and rationality of the photovoltaic support under the conditions of large span and large inclination. By setting the first upper load-bearing cable higher than the second upper load-bearing cable to form an inclined plane, and this inclined plane faces the sunlight direction, it ensures that the photovoltaic modules can obtain better lighting conditions and meet the requirement of facing the sunlight. The spatial triangular system formed by the stable support assemblies not only enhances the stability of the support, but also avoids excessive increase in the steel consumption, achieving the efficient utilization of materials. The tight connection between the side columns, cross beams and flexible cables, as well as the fixing method of the lower load-bearing cable and the anchor cable, enables the entire support structure to perform excellently in load transfer and anchoring, and can effectively resist external forces such as wind and snow loads, ensuring the stability and non-displacement of the photovoltaic modules on the flexible cables. In addition, the components of the support structure cooperate with each other to form a stable and reliable whole, providing good support and protection for the photovoltaic modules, extending their service life, promoting the application of photovoltaic technology in a wider range of fields, and being particularly suitable for special areas such as tea gardens.

[0030] In terms of structural stability, the spatial triangular system formed by the stable support assemblies provides the support with strong anti-deformation ability, effectively reducing the horizontal and torsional movements of the photovoltaic modules under wind loads, avoiding the overturning of the photovoltaic modules, and ensuring the stable operation of the support under various harsh environments. In terms of cost-effectiveness, through reasonable design and material selection, on the premise of ensuring the strength and stability of the support, the steel consumption is reduced as much as possible, reducing the production cost. At the same time, the bolt connection method between the flexible cable and the support not only ensures the tightness and reliability of the connection, but also facilitates disassembly and reconnection, improving the construction efficiency and reducing the maintenance cost. In terms of applicability, this support is applicable to a variety of terrain and environmental conditions, and has significant advantages especially for photovoltaic projects with large span and large inclination, providing a flexible solution for photovoltaic applications in different regions and contributing to the popularization and development of photovoltaic technology. Brief Description of the Drawings

[0031] Figure 1 is a three-dimensional schematic diagram of the single-layer three-cable flexible photovoltaic support of the present invention; Figure 2 is a top view schematic diagram of the single-layer three-cable flexible photovoltaic support of the present invention; Figure 3 is a structural schematic diagram of the stable support assembly of the present invention; Figure 4 is an example diagram of the flexible cable tension verification result in the embodiment; Figure 5 is an example diagram of the flexible cable deflection distribution in the design state in the embodiment; Figure 6 is an example diagram of the flexible cable deflection distribution in the dead load state in the embodiment. In the figure: 1. Side column, 2. Cross beam, 3. First upper load-bearing cable, 4. Second upper load-bearing cable, 5. Middle load-bearing cable, 6. Stable support assembly, 7. Photovoltaic module, 8. Lower load-bearing cable, 9. Anchor cable. A is a unit in the stable support assembly. Detailed implementation mode

[0035] Overall, the present invention provides a single-layer flexible bracket applicable to tea garden photovoltaic and its end support structure, including side columns arranged at both ends of the photovoltaic bracket, and a load-bearing cross beam installed between the two side columns. The end cross beam includes a cable connection plate, a cross beam, and a steel strand anchor. Among the three cables, the upper load-bearing cable is fixed to the lower load-bearing cable through a load-bearing component. The lower load-bearing cable connects the steel strand inside the stud through a special stud, and then fixes it to the end connector through a threaded connection. The middle steel strand is directly anchored to the cross beam through the steel strand anchor. One end of the anchor cable is connected to the cross beam, and the other end is connected to the anchor system. This design overcomes the problem that it is not easy to achieve due to the too large inclination angle of the photovoltaic module, and improves the problem that the photovoltaic panel meets the requirements of a larger inclination angle. At the same time, it also solves the problem that it is not easy to achieve stability due to the large span when the photovoltaic module panel is placed vertically, and realizes the stability and non-displacement of the photovoltaic module on the flexible cable.

[0036] The present invention will be described in detail below with reference to the drawings and specific embodiments. Features such as preparation means, materials, structures, or composition ratios that are not clearly described in this technical solution are regarded as common technical features disclosed in the prior art.

[0037] Embodiment 1

[0038] Please refer to Figures 1-3 , in the example of the present invention, a single-layer three-cable flexible photovoltaic bracket structure includes a side column 1, a cross beam 2, a first upper load-bearing cable 3, a second upper load-bearing cable 4, a middle load-bearing cable 5, a lower load-bearing cable 8, and a stable support assembly 6. The side column 1 is arranged at both ends of each row of photovoltaic modules, and the cross beam 2 is arranged at the top of each column of side columns. The load-bearing component is composed of a first upper load-bearing cable 3, a second upper load-bearing cable 4, a middle load-bearing cable 5, and a lower load-bearing cable 8. Among them, the first upper load-bearing cable 3 is higher than the second upper load-bearing cable 4, forming an inclined surface for installing photovoltaic modules. The middle load-bearing cable 5 and the lower load-bearing cable 8 are lower than the first upper load-bearing cable 3 and the second upper load-bearing cable 4.

[0039] See Figure 3 , the stable support assembly 6 contains multiple triangular steel frames, and the steel frame body formed by splicing the triangular steel frames horizontally. A is a unit in the stable support assembly, which is connected by 3 triangular steel frame units.

[0040] As Figure 1As shown in the figure, multiple side columns 1 are arranged from south to north at the westernmost and easternmost ends of the photovoltaic module 7 array. At this time, the side columns 1 are arranged in two columns at both ends of each row of photovoltaic modules 7; the cross beams 2 are respectively fixedly connected to the tops of each column of side columns 1, so as to connect multiple side columns 1 from south to north. The load-bearing assembly straddles two columns of cross beams 2 and is provided with several groups, and each group includes a first upper load-bearing cable 3, a second upper load-bearing cable 4, an intermediate load-bearing cable 5 and a lower load-bearing cable 8. The first upper load-bearing cable 3, the second upper load-bearing cable 4, the intermediate load-bearing cable 5 and the lower load-bearing cable 8 are all steel strands, and both ends of the lower load-bearing cable 8 cross the cross beam 2 and are fixed on the anchoring cable 9. The first upper load-bearing cable 3 is higher than the second upper load-bearing cable 4, and the first upper load-bearing cable 3 is located north of the second upper load-bearing cable 4, so as to form an inclined surface for installing the photovoltaic module 7. At this time, the inclined surface faces the sunlight direction, so that the installed photovoltaic module 7 can obtain better illumination to meet its requirement of facing the sunlight. The design of the cross beam 2 and the anchoring cable 9 mainly meets the prestress of the load-bearing rope, the self-weight of components such as photovoltaic modules, and the horizontal reaction force of the support under wind and snow loads, etc., to ensure the stability of the entire photovoltaic support. The intermediate load-bearing cable 5 is lower than the first upper load-bearing cable 3 and the second upper load-bearing cable 4. The stable support assembly 6 is provided with several groups and is arranged at intervals in the east-west direction of the photovoltaic module 7 array, which can further provide support for the load-bearing assembly and play a role in increasing stability.

[0041] In this embodiment, the working principle of the single-layer three-cable flexible photovoltaic support is as follows:

[0042] The side columns 1, as the basic support structure, are arranged at both ends of each row of photovoltaic modules 7 to provide stable column support for the entire bracket. The cross beam 2 is fixedly connected to the top of the side column 1 to connect multiple side columns 1 into a whole, enhancing the longitudinal stability of the bracket and providing a fixed point for the load-bearing cable. The load-bearing assembly consists of a first upper load-bearing cable 3, a second upper load-bearing cable 4, an intermediate load-bearing cable 5, and a lower load-bearing cable 8. Among them, the first upper load-bearing cable 3 is higher than the second upper load-bearing cable 4, forming an inclined plane that faces the sunlight direction, ensuring that the photovoltaic module 7 can obtain better lighting conditions. The photovoltaic module 7 is placed on the first upper load-bearing cable 3, the second upper load-bearing cable 4, and the intermediate load-bearing cable 5. Through the support of these load-bearing cables, the photovoltaic module remains stable on the flexible cable to avoid displacement. Both ends of the lower load-bearing cable 8 cross over the cross beam 2 and are fixed to the anchor cable 9. A cushion block is provided at the contact position with the cross beam 2 to play a buffering and protective role. At the same time, the lower load-bearing cable 8 is connected to the stable support assembly 6 and the side column 1 to fix the bracket and restrict the possible displacement of the bracket when subjected to external loads, enhancing the stability of the entire bracket. The stable support assembly 6 connects the first upper load-bearing cable 3, the intermediate load-bearing cable 5, and the lower load-bearing cable 8 in the transverse direction to form a spatial triangular structure, further enhancing the stability and anti-deformation ability of the bracket, restricting the deformation generated when the photovoltaic panel load acts on the component cable, and ensuring the reliability and safety of the bracket under external forces such as wind and snow loads.

[0043] Embodiment 2

[0044] As Figures 1-2 shown, according to another embodiment of the large-span flexible photovoltaic bracket of the present invention, the installed photovoltaic module 7 is arranged between the side columns 1 at both ends. Two or more stable support assemblies 6 are arranged between the side columns 1. By tensioning the load-bearing ropes between the side columns 1, the horizontal and torsional movements of the photovoltaic module 7 under wind loads can be effectively reduced, and the stability of the entire flexible photovoltaic bracket array can be further enhanced.

[0045] Multiple groups of stable support assemblies 6 are combined with multiple groups of load-bearing assemblies to form a set of overall flexible photovoltaic bracket systems, which can effectively enhance the rigidity, wind resistance, and stability of the flexible photovoltaic bracket, and avoid large-amplitude vibrations and the overturning of the photovoltaic module 7.

[0046] In this embodiment, the flexible cable and the bracket are connected by bolts, implementing a stable and reliable structural connection method, ensuring the tight fixation between the flexible cable and the bracket, and at the same time allowing convenient disassembly and reconnection when needed.

[0047] In this embodiment, the verification result of the horizontal tension of the flexible cable can be obtained by static analysis. The tension of the flexible cable affects the stability of the bracket structure. The flexible cable mainly bears the weight of the photovoltaic module and external loads such as wind loads. This scheme selects 1×7 - 15.20 - 1860 steel strands.

[0048]

[0049] Wherein, q is the uniformly distributed load above the cable, l is the span of the flexible cable, and f is the sag of the flexible cable at the mid-span.

[0050] Therefore, the uniformly distributed load of the flexible cable is:

[0051] q1A1 = (0.28 + 0.2805) * 2.278 * 1.137 * cos20° * 1000 + 31.6 * 9.8 = 1673.872

[0052]

[0053] H = 31.138 2 *483.809 / (8 * 0.623) ≈ 94.119 kN

[0054] The prestress for a span of 31.138 m is 94.119 kN.

[0055] The maximum tensile strength of the axial tension of the flexible cable is 1860 MPa.

[0056] The design value of the tensile resistance of the flexible cable is 1860 * 10^6 * 139 * 10^-6 = 258540 N ≈ 258.5 kN.

[0057] The design value of the tensile resistance of the flexible cable:

[0058] The simulation value obtained by verification with the SAP2000 software is 97.254 KN < 139.5 KN. See Appendix Figure 4 .

[0059] In this embodiment, the verification result of the deflection value of the flexible cable can be obtained from the static analysis. Under the design state: See Appendix Figure 5 As shown, the deflection value is 0.315 m, which is less than the theoretical value of 0.623 m; under the dead load state: See Appendix Figure 6 As shown, the maximum deflection value is 0.049 m, which is less than the theoretical value of 0.21 m.

[0060] The above description of the embodiments is to enable those of ordinary skill in the art to understand and use the invention. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative efforts. Therefore, the present invention is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. A single-layer three-cable flexible photovoltaic support for large-angle photovoltaic installation scenarios, characterized in that, It includes side columns (1), cross beams (2), first upper load-bearing cables (3), second upper load-bearing cables (4), intermediate load-bearing cables (5), stable support assemblies (6), photovoltaic modules (7), lower load-bearing cables (8), and anchoring cables (9); The anchoring cable (9) is connected to the side column (1) for anchoring the side column (1); The side columns (1) are provided at both ends of each row of photovoltaic modules (7), and the cross beam (2) is fixedly connected to the top of the side column (1), and the cross beam (2) extends horizontally and is connected to multiple columns (1); The first upper load-bearing cable (3) and the second upper load-bearing cable (4) are respectively connected to the cross beam (2) in the direction of the cross beam (2), and the first upper load-bearing cable (3) is higher than the second upper load-bearing cable (4), thereby forming an inclined surface for installing the photovoltaic module (7), and the intermediate load-bearing cable (5) and the lower load-bearing cable (8) are lower than the first upper load-bearing cable (3) and the second upper load-bearing cable (4); The stable support assembly (6) is a steel frame body composed of multiple triangular steel frames spliced horizontally. The stable support assembly (6) is respectively connected to the first upper load-bearing cable (3), the intermediate load-bearing cable (5), and the lower load-bearing cable (8), and the stable support assembly (6) is fixedly connected to the side column (1); The lower load-bearing cable (8) is fixed on the anchoring cable (9), and the photovoltaic module (7) is simultaneously fixed on the first upper load-bearing cable (3), the second upper load-bearing cable (4), and the intermediate load-bearing cable (5), and the inclined surface faces the sunlight direction.

2. The single-layer three-cable flexible photovoltaic support according to claim 1, wherein The side columns (1) are arranged in two columns at both ends of each row of photovoltaic modules (7), and the tops of each column of side columns (1) are fixedly connected by a cross beam (2); The first upper load-bearing cable (3), the second upper load-bearing cable (4), the intermediate load-bearing cable (5), and the lower load-bearing cable (8) together form a load-bearing assembly. The load-bearing assembly spans two rows of cross beams (2) and is provided with several groups.

3. A single-layer three-cable flexible photovoltaic support according to claim 1, characterized in that, The first upper load-bearing cable (3), the intermediate load-bearing cable (5), and the lower load-bearing cable (8) are all steel strands, and the first upper load-bearing cable (3) is located north of the second upper load-bearing cable (4).

4. A single-layer three-cable flexible photovoltaic support according to claim 1, characterized in that, The stable support assemblies (6) are provided in several groups along the east-west direction, and the stable support assemblies (6) are fixedly connected to the first upper load-bearing cable (3), the intermediate load-bearing cable (5), and the lower load-bearing cable (8) through anchors or fasteners.

5. A single-layer three-cable flexible photovoltaic support according to claim 4, characterized in that, The lower load-bearing cable (8) is simultaneously connected to the stable support assembly (6) and the side column (1) to fix the overall photovoltaic support structure and restrain the displacement of the overall photovoltaic support structure when subjected to external loads.

6. The single-layer three-cable flexible photovoltaic support according to claim 1, characterized in that, The first upper load-bearing cable (3) and the second upper load-bearing cable (4) are respectively connected to the intermediate load-bearing cable (5) and the stable support assembly (6). The first upper load-bearing cable (3) and the second upper load-bearing cable (4) are used to directly bear the load of the photovoltaic panel and maintain the stability of the overall photovoltaic support structure.

7. A single-layer three-cable flexible photovoltaic support according to claim 1, characterized in that, The side columns (1) and the cross beams (2) are respectively connected to the upper load-bearing cable (3), the middle load-bearing cable (5), and the lower load-bearing cable (8). The side columns (1) and the cross beams (2) are used to transfer loads and for anchoring, and the upper load-bearing cable (3), the middle load-bearing cable (5), and the lower load-bearing cable (8) are connected to the columns (1) and the cross beams (2) by bolts.

8. The single-layer three-cable flexible photovoltaic support according to claim 1, characterized in that, The stable support assembly (6) is used to maintain the stability of the overall photovoltaic support structure and, after prestressing is applied, to restrain the deformation generated when the photovoltaic panel load acts on the component cables. A cushion block is provided at the contact position between the lower load-bearing cable (8) and the cross beam (2).

9. A single-layer three-cable flexible photovoltaic support according to claim 1, characterized in that, Multiple side columns (1) are arranged from south to north at the west end and the east end of the array of the photovoltaic modules (7). The cross beams (2) are respectively fixedly connected to the tops of each column of side columns (1), and the stable support assembly (6) is connected to multiple columns of cross beams (2).

10. A single-layer three-cable flexible photovoltaic support according to claim 1, characterized in that, By tensioning the upper load-bearing cable (3), the middle load-bearing cable (5), and the lower load-bearing cable (8) between the side columns (1), the horizontal and torsional movements of the photovoltaic modules under wind loads are reduced, and the stability of the overall photovoltaic support structure is enhanced.

Images