Single-row photovoltaic support and photovoltaic array installation method

Abstract

The invention discloses a single-row photovoltaic support and a photovoltaic array installation method, and relates to the technical field of photovoltaic power generation equipment. The single-row photovoltaic support comprises a plurality of support units. The stent units comprise end stent units and middle stent units. The end support unit comprises a first stand column and a second stand column, the first stand column is provided with a first forehead component, the second stand column is provided with a second forehead component, and the elevation of the first forehead component is larger than that of the second forehead component. The middle support unit comprises a third stand column and a beam arranged at the top of the third stand column, and the dip angle of the beam is consistent with the dip angle of the connecting line of the first forehead component and the second forehead component. A third component is arranged at the top of the beam; the first main cable penetrates through the first forehead component and the third forehead component, and the first forehead component tensions and anchors the two ends of the first main cable. The second main cable passes through the second forehead member and the third forehead member, and the second forehead member tensions and anchors both ends of the second main cable. The single-row photovoltaic support provided by the invention is beneficial to suppressing wind-induced vibration and reducing the risk of assembly damage.

Description

Technical Field

[0001] This disclosure relates to the field of photovoltaic power generation equipment technology, and more specifically, to a single-row photovoltaic support and photovoltaic array installation method. Background Technology

[0002] The development and utilization of solar energy is a key measure to adjust energy development strategies and power structure. With increasing attention to environmental pollution and energy consumption, the photovoltaic (PV) power generation industry is receiving more attention. In PV power plant construction, the PV support system is a crucial infrastructure supporting PV modules, and its performance directly affects the power plant's safety, power generation efficiency, land utilization, and construction costs. As PV applications extend to complex terrains such as mountains and hills, the limitations of traditional fixed supports on steep slopes are becoming increasingly apparent: large-scale earthwork leveling is often required to meet installation requirements, which not only significantly increases construction costs and time but also easily damages the original ecological environment and reduces the overall land utilization rate.

[0003] Large-span flexible support technology based on prestressed cable structure has the advantages of strong adaptability, ability to cross complex terrain, and reduced earthwork excavation. However, the flexible support structure in related technologies has insufficient ability to resist wind vibration, and its stability and reliability need to be improved. Summary of the Invention

[0004] This disclosure provides a single-row photovoltaic support structure that helps suppress wind-induced vibration, reduce the risk of module damage, and improve the safety, stability, and reliability of the photovoltaic array.

[0005] According to one aspect of this disclosure, a single-row photovoltaic support is provided, comprising a plurality of support units arranged sequentially along a first direction; a main cable passes sequentially through each support unit along the first direction; the support unit includes end support units located at both ends of the single-row photovoltaic support, and intermediate support units located between the end support units;

[0006] The end support unit includes a first column and a second column, which are parallel to each other and arranged along a second direction, which is perpendicular to the first direction.

[0007] The first column is topped with a first bracket component, and the second column is topped with a second bracket component. The elevation of the first bracket component is greater than the elevation of the second bracket component.

[0008] A first connecting rod and a second connecting rod connect the first column and the second column; the first connecting rod is located above the second connecting rod, and the distance between the endpoints of the first connecting rod and the second connecting rod is greater than the distance between the endpoints of the second column.

[0009] The intermediate support unit includes a third column and a crossbeam. The crossbeam is located on top of the third column. The angle of inclination of the crossbeam to the horizontal plane and the angle of inclination of the line connecting the first and second supporting components to the horizontal plane are the same. A third supporting component is provided in pairs on the top of the crossbeam.

[0010] The main cable includes a first main cable and a second main cable arranged in parallel. The first main cable passes through a first auxiliary member and a third auxiliary member. The first auxiliary member is used to tension and anchor the two ends of the first main cable. The second main cable passes through a second auxiliary member and a third auxiliary member. The second auxiliary member is used to tension and anchor the two ends of the second main cable.

[0011] In one exemplary embodiment of this disclosure, the intermediate support unit includes a diagonal brace; the two opposite ends of the diagonal brace are respectively connected to the third column and the crossbeam, and the angle between the diagonal brace and the third column is 20° to 70°.

[0012] In one exemplary embodiment of this disclosure, the angle between the first connecting rod and the second connecting rod is 30 to 60°.

[0013] In one exemplary embodiment of this disclosure, the endpoint of the first connecting rod on the first column is higher than the endpoint of the second column; the endpoint of the second connecting rod on the first column is lower than the endpoint of the second column; and the endpoint of the first connecting rod on the second column is higher than the endpoint of the second connecting rod on the second column.

[0014] In one exemplary embodiment of this disclosure, the first connecting rod and the second connecting rod are arranged adjacent to each other at the end points of the second column; the first connecting rod and the second connecting rod are of equal length.

[0015] In one exemplary embodiment of this disclosure, the end support unit is tensioned and fastened to the ground by end anchors, the end anchors including end ground anchors and end anchor cables; the end ground anchors are respectively disposed on the outer side of the first column and the second column along the first direction; the end anchor cables are respectively connected between the first column and the corresponding end ground anchor, and between the second column and the corresponding end ground anchor.

[0016] In one exemplary embodiment of this disclosure, the connection point of the end anchor cable on the first post is at the same height as the connection point on the second post.

[0017] In one exemplary embodiment of this disclosure, the height of the connection point of the end anchor cable on the first column is equal to the height of the end point of the second connecting rod on the first column.

[0018] In one exemplary embodiment of this disclosure, at least some adjacent support units are provided with auxiliary supports; the auxiliary supports include crossbars, which are connected to a first main cable and a second main cable respectively; the crossbars are tensioned and fastened to the ground by auxiliary anchors; the auxiliary anchors are arranged in pairs on the crossbars, and the auxiliary anchors include auxiliary ground anchors and auxiliary anchor cables, with the auxiliary ground anchors located below the crossbars and the auxiliary anchor cables connected between the crossbars and the auxiliary ground anchors;

[0019] The two auxiliary anchors are coplanar with the crossbar, and the distance between the two auxiliary anchors is greater than the distance between the connection points of the auxiliary anchor cables on the crossbar. The two auxiliary anchors respectively stretch the auxiliary anchor cables in directions away from each other.

[0020] According to another aspect of this disclosure, a photovoltaic array installation method is also provided, comprising:

[0021] Based on the design coordinates, the layout is carried out, and the construction forms a series of pipe pile foundations arranged in the first direction, as well as end anchors located on the outside of the pipe pile foundations at the ends.

[0022] The first column, the second column, the first connecting rod, and the second connecting rod are installed on the pipe pile foundation at the end to form an end support unit;

[0023] The third column and the crossbeam are installed on the pipe pile foundation located between the ends to form an intermediate support unit;

[0024] Install end anchors and connect the end anchor cables between the first column and the corresponding end ground anchor, and between the second column and the corresponding end ground anchor;

[0025] The main cable is passed through each support unit in sequence. The first main cable passes through the first lateral member at the top of the first column and the third lateral member at the top of the crossbeam. The second main cable passes through the second lateral member at the top of the second column and the third lateral member at the top of the crossbeam. The end of the first main cable is tensioned and anchored using the first lateral member. The end of the second main cable is tensioned and anchored using the second lateral member.

[0026] The photovoltaic modules are installed using the first main cable and the second main cable;

[0027] Auxiliary supports are installed between at least some of the adjacent support units, and the crossbars of the auxiliary supports are connected to the first main cable and the second main cable respectively; the crossbars are tensioned and fastened to the ground by auxiliary anchors.

[0028] The single-row photovoltaic (PV) support structure disclosed herein comprises a stable end support unit formed by a first column, a second column, a first connecting rod, and a second connecting rod. Combined with intermediate support units between these end support units, and a first main cable and a second main cable, a stable single-row flexible PV support structure can be formed. When installing PV modules on the main cables, the two opposite sides of the PV panels can be fixed in place using the first and second main cables respectively. After the PV modules are installed on the main cables, the PV module array can be configured into a stable spatial whole. In scenarios with large spans and high module density, this structure can effectively resist wind vibration, reduce PV panel damage, and facilitate efficient land use.

[0029] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0031] Figure 1 This is an overall schematic diagram of an exemplary embodiment of a single-row photovoltaic support system disclosed herein.

[0032] Figure 2 This is a schematic diagram of an end support unit from one perspective in an exemplary embodiment of a single-row photovoltaic support system of this disclosure.

[0033] Figure 3 This is a schematic diagram of the end support unit from another perspective in an exemplary embodiment of a single-row photovoltaic support system of this disclosure.

[0034] Figure 4 This is a schematic diagram of the intermediate support unit in an exemplary embodiment of a single-row photovoltaic support system disclosed herein.

[0035] Figure 5 This is a schematic diagram showing the main cable passing through a third component on a crossbeam in an exemplary embodiment of a single-row photovoltaic support system disclosed herein.

[0036] Explanation of reference numerals in the attached figures:

[0037] 11. First column; 12. Second column; 13. First connecting rod; 14. Second connecting rod;

[0038] 21. First component; 22. Second component; 23. Third component;

[0039] 31. First main cable; 32. Second main cable;

[0040] 41. Third column; 42. Horizontal beam; 43. Diagonal brace;

[0041] 51. End anchor; 52. End anchor cable; 53. Auxiliary anchor; 54. Auxiliary anchor cable;

[0042] 61. Horizontal bar; 70. Pipe pile foundation. Detailed Implementation

[0043] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0044] Unless otherwise specified or stated, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “a,” “an,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “comprising” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to those listed; the terms “first” and “second” are used only as illustrative marks and are not intended to limit the number, importance, or order of the objects.

[0045] Unless otherwise specified, the terms “connection” and “fixed” should be interpreted broadly. For example, “connection” can be a fixed connection, a movable connection, an integral connection, or a detachable connection. It can be a direct connection or an indirect connection through an intermediate medium.

[0046] The phrase "part A is located on part B" as described in this disclosure can mean that part A is directly connected to part B, or that part A is located on part C, and part C is located on part B.

[0047] Furthermore, in this application, directional terms such as "upper" and "lower" are used only to indicate relative positional relationships. For example, for convenience, they are defined based on the position and state of the photovoltaic array during normal installation, or relative to the orientation of the components schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts and can change accordingly depending on the orientation of the components placed in the accompanying drawings.

[0048] According to one aspect of this disclosure, a single-row photovoltaic mounting system is provided. (Reference) Figures 1 to 4 As shown, a single-row photovoltaic support includes multiple support units arranged sequentially along a first direction; the main cable passes through each support unit sequentially along the first direction; the support unit includes end support units located at both ends of the single-row photovoltaic support, and intermediate support units located between the end support units. Depending on the overall span of the single-row photovoltaic support, multiple intermediate support units may be provided.

[0049] The end support unit includes a first column 11 and a second column 12, which are parallel to each other and arranged along a second direction perpendicular to the first direction. (Refer to...) Figure 1 As shown. The first column 11 has a first supporting member 21 at its top, and the second column 12 has a second supporting member 22 at its top. The elevation of the first supporting member 21 is greater than the elevation of the second supporting member 22, so that after the photovoltaic modules are installed on the main cable, the tilt angle of the photovoltaic modules meets the usage requirements.

[0050] A first connecting rod 13 and a second connecting rod 14 connect the first column 11 and the second column 12. The first connecting rod 13 is located above the second connecting rod 14, and the distance between the endpoints of the first connecting rod 13 and the second connecting rod 14 is greater than the distance between the endpoints of the second column 12. The first connecting rod 13 and the second connecting rod 14 can form a V-shape, which is beneficial to the stability between the first column 11 and the second column 12 of the end support unit.

[0051] The intermediate support unit includes a third column 41 and a crossbeam 42, as shown in the reference. Figure 1 , Figure 4 As shown, the crossbeam 42 is located at the top of the third column 41. The angle of inclination of the crossbeam 42 to the horizontal plane and the line connecting the first supporting member 21 and the second supporting member 22 are consistent with the angle of inclination of the horizontal plane to ensure that the tilt angle of the photovoltaic modules in the entire photovoltaic support row meets the usage requirements. A third supporting member 23 is provided in pairs at the top of the crossbeam 42.

[0052] The main cable includes a first main cable 31 and a second main cable 32 arranged in parallel. The first main cable 31 passes through a first auxiliary member 21 and a third auxiliary member 23. The first auxiliary member 21 is used to tension and anchor both ends of the first main cable. The second main cable 32 passes through a second auxiliary member 22 and a third auxiliary member 23. The second auxiliary member 22 is used to tension and anchor both ends of the second main cable 32. For example, the first main cable 31 passes sequentially through the first auxiliary member 21 on one end of the end support unit, the third auxiliary member 23 on each intermediate support unit, and the first auxiliary member 21 on the other end of the end support unit. Both ends of the first main cable 31 are fastened by the first auxiliary members 21 on both end support units. The second main cable 32 passes sequentially through the second auxiliary member 22 on one end of the end support unit, another set of third auxiliary members 23 on each intermediate support unit, and the second auxiliary member 22 on the other end of the end support unit. Both ends of the second main cable 32 are fastened by the second auxiliary members 22 on both end support units.

[0053] refer to Figures 1 to 5 As shown, Figure 1 This shows an overall schematic diagram of a single-row photovoltaic support system; Figure 2 A schematic diagram of the end support unit of a single-row photovoltaic system is shown from one perspective; Figure 3 A schematic diagram of the end support unit of a single-row photovoltaic system is shown from another perspective; Figure 4 A schematic diagram of the intermediate support unit of a single-row photovoltaic system is shown. Figure 5 A schematic diagram is shown showing the main cable passing through the third member 23 on the crossbeam 42.

[0054] The single-row photovoltaic (PV) support structure disclosed herein comprises a stable end support unit formed by a first column 11, a second column 12, a first connecting rod 13, and a second connecting rod 14. This end support unit, along with intermediate support units and a first main cable 31 and a second main cable 32, forms a stable single-row flexible PV support structure. When installing PV modules on the main cables, the two opposite sides of the PV panels can be fixed using the first main cable 31 and the second main cable 32, respectively. After the PV modules are installed on the main cables, the PV module array can form a stable spatial whole. In scenarios with large spans and high module density, this structure can effectively resist wind vibration, reduce PV panel damage, and facilitate efficient land use.

[0055] Furthermore, it should be noted that due to the upper limit of precision in manufacturing, on-site construction, and measurement processes, the "perpendicularity" described in this disclosure may not be a perfectly accurate 90°. For example, "perpendicularity" can refer to an angle between two straight lines that is greater than 80° and less than 100°. As long as it is within the allowable error range of manufacturing, construction, and measurement precision, it should be considered perpendicular. Therefore, it can be further explained that the concepts of coplanarity, parallelism, and similarity mentioned in this disclosure are all within the range allowed by manufacturing process precision.

[0056] For example, each support unit may include a pipe pile foundation 70, as shown in the reference. Figure 1 As shown, the first column 11, the second column 12, and the third column 41 are all installed on the corresponding pipe pile foundations 70. The elevation of the first auxiliary component 21 is greater than the elevation of the second auxiliary component 22. For example, the heights of the pipe pile foundations 70 where the first column 11 and the second column 12 are located can be equal, and the length (height) of the first column 11 is greater than the length (height) of the second column 12. Therefore, the height of the first auxiliary component 21 at the top of the first column 11 is higher than the height of the second auxiliary component 22 at the top of the second column 12. After the first main cable 31 and the second main cable 32 pass through the first auxiliary component 21 and the second auxiliary component 22 respectively and are tensioned and anchored, the height of the photovoltaic panel installed on the side of the first main cable 31 is higher than the height of the side installed on the second main cable 32, forming the designed tilt angle. In some implementations, the height of the pipe pile foundation 70 where the first column 11 is located may be higher than the height of the pipe pile foundation 70 where the second column 12 is located. The length (height) of the first column 11 may be equal to the length (height) of the second column 12. Similarly, the height of the first component 21 may be higher than that of the second component 22.

[0057] In one exemplary embodiment of this disclosure, reference is made to Figure 1 as well as Figure 4 As shown, the intermediate support unit includes diagonal braces 43. The opposite ends of the diagonal braces 43 are connected to the third column 41 and the crossbeam 42, respectively. The angle between the diagonal braces 43 and the third column 41 is 20° to 70°. The diagonal braces 43, the third column 41, and the crossbeam 42 can form a triangular shape, making the intermediate support unit structure more stable and its load-bearing capacity stronger. For example, the diagonal braces 43 are arranged in pairs on both sides of the third column 41, and the two diagonal braces 43 can be coplanar, further strengthening the structure of the intermediate support unit and ensuring the stability of the crossbeam 42.

[0058] The angle of inclination of the crossbeam 42 to the horizontal plane and the angle of inclination of the line connecting the first and second supporting members 21 to the horizontal plane are consistent. The third supporting member 23 can be symmetrically arranged on the crossbeam 42 relative to the third column 41. The distance between the two third supporting members 23 is equal to the distance between the first and second supporting members 21 on the end support unit, thus providing a reference. Figure 1As shown, within the entire support row of a single-row photovoltaic system, the first main cable 31 and the second main cable 32 can be arranged in parallel, making the photovoltaic modules more securely installed on the first main cable 31 and the second main cable 32. The third component 23 may include a U-shaped lock, see reference. Figure 5 The diagram shows a third member 23 through which the main cable passes on the crossbeam 42.

[0059] The first connecting rod 13 and the second connecting rod 14 are connected between the first column 11 and the second column 12. For example, the included angle between the first connecting rod 13 and the second connecting rod 14 can be 30° to 60°, so that the first connecting rod 13 and the second connecting rod 14 can form a V-shaped structure between the first column 11 and the second column 12, which makes the structure of the end support unit more stable and has a stronger load-bearing capacity. This is beneficial for maintaining the tension support of the first main cable 31 and the second main cable 32 in windy or other weather conditions, making the first main cable 31 and the second main cable 32 less prone to swaying.

[0060] In one exemplary embodiment of this disclosure, reference is made to Figure 1 as well as Figure 2 , Figure 3 As shown, Figure 2 , Figure 3 Schematic diagrams of the first column 11 and the second column 12 from different perspectives are provided. The end point of the first connecting rod 13 on the first column 11 is higher than the end point of the second column 12, the end point of the second connecting rod 14 on the first column 11 is lower than the end point of the second column 12, and the end point of the first connecting rod 13 on the second column 12 is higher than the end point of the second connecting rod 14 on the second column 12.

[0061] In some embodiments, the first connecting rod 13 and the second connecting rod 14 can be fixedly connected on the first column 11 and the second column 12 by means of welding or other methods.

[0062] In other embodiments, the first connecting rod 13 and the second connecting rod 14 are movably connected to the first column 11 and the second column 12 via bolts. This allows for adjustment of the connection point positions of the first connecting rod 13 and the second column 12, as well as the connection point positions of the second connecting rod 14. This adjustable connection of the first connecting rod 13 and the second connecting rod 14 facilitates adjustments to their endpoint connection positions and tilt angles according to construction conditions and requirements. This simplifies the construction of the main support structure, reduces construction difficulty, and improves the installation accuracy of the first connecting rod 13 and the second connecting rod 14.

[0063] refer to Figure 2 , Figure 3As shown, exemplarily, the first connecting rod 13 and the second connecting rod 14 are arranged adjacent to the end points of the second column 12. For example, one end of the first connecting rod 13 and the second connecting rod 14 are connected to the second column 12 by the same set of fasteners. This exemplary embodiment helps to simplify the structure and installation process of the end support unit and improves on-site operation efficiency.

[0064] In some embodiments, the first connecting rod 13 and the second connecting rod 14 are of equal length. Thus, the first connecting rod 13, the second connecting rod 14, and the first column 11 form an approximately isosceles triangle shape, which improves the structural stability of the end support unit and enhances its load-bearing capacity.

[0065] For example, the end point of the first connecting rod 13 on the first column 11 is close to the first component 21, and the end point of the second connecting rod 14 on the first column 11 is close to the pipe pile foundation 70. This is beneficial for the base of the triangular structure formed by the first connecting rod 13, the second connecting rod 14 and the first column 11 to make full use of the length of the first column 11, so that the angle of the apex of the triangular structure is increased, and the stability between the first column 11 and the second column 12 is improved.

[0066] In one exemplary embodiment of this disclosure, the end support unit is tensioned and secured to the ground by end anchors. (See reference...) Figures 1 to 3 As shown, the end anchors include end ground anchors 51 and end anchor cables 52. The end ground anchors 51 are correspondingly located on the outer sides of the first column 11 and the second column 12 along the first direction. The end anchor cables 52 are respectively connected between the first column 11 and its corresponding end ground anchor 51, and between the second column 12 and its corresponding end ground anchor 51. In a single-row photovoltaic support system, the end support units located at both ends are tensioned and secured to the ground by the end anchors. The end ground anchors 51 are located on the outer sides of the first column 11 and the second column 12 and are embedded in the ground. The end anchor cables 52 are respectively connected between the first column 11 and its corresponding end ground anchor 51, and between the second column 12 and its corresponding end ground anchor 51. The end anchors improve the stability of the end support units. After the photovoltaic modules are installed on the main cable, the end anchors tension and secure the end support units, preventing the end support units from swaying or being damaged when the main cable is subjected to static or dynamic loads.

[0067] For example, the connection point of the end anchor cable 52 on the first post 11 and the connection point on the second post 12 are at the same height. For instance, the line connecting the two end anchors 51 is parallel to the line connecting the first post 11 and the second post 12, the distance between the two end anchors 51 is equal to the distance between the first post 11 and the second post 12, and the projections of the two end anchors 51, the first post 11, and the second post 12 on the ground can form a rectangle.

[0068] In one exemplary embodiment of this disclosure, reference is made to Figure 2 , Figure 3 As shown, the height of the connection point of the end anchor cable 52 on the first column 11 is equal to the height of the end point of the second connecting rod 14 on the first column 11. The support point of the second connecting rod 14 on the first column 11 is close to the tension application point of the end anchor cable 52 on the first column 11, which is beneficial to the force balance and support stability of the first column 11.

[0069] In one exemplary embodiment of this disclosure, an auxiliary support is provided between at least some adjacent support units. (See reference...) Figure 1 As shown, the auxiliary support includes a crossbar 61, which is connected to a first main cable 31 and a second main cable 32, respectively. For example, the crossbar 61 is connected to a first fulcrum and a second fulcrum on the crossbar 61, respectively. The distance between the first fulcrum and the second fulcrum is equal to the distance between the two third auxiliary members 23 on the intermediate support unit and the distance between the first auxiliary member 21 and the second auxiliary member 22 on the end support unit. Exemplarily, the first fulcrum and the second fulcrum can be symmetrically arranged on the crossbar 61 with respect to the center of the crossbar 61.

[0070] The crossbar 61 is tensioned and secured to the ground by auxiliary anchors. The auxiliary anchors are arranged in pairs on the crossbar 61, each including an auxiliary ground anchor 53 and an auxiliary anchor cable 54. The auxiliary ground anchor 53 is located below the crossbar 61, and the auxiliary anchor cable 54 connects the crossbar 61 and the auxiliary ground anchor 53. Alternatively, the auxiliary anchors can be arranged symmetrically along the length of the crossbar 61 relative to its center.

[0071] The two auxiliary anchors are coplanar with the crossbar 61. The distance between the two auxiliary anchors 53 is greater than the distance between the connection points of the auxiliary anchor cables 54 on the crossbar 61. The two auxiliary anchors 53 respectively stretch the auxiliary anchor cables 54 in directions away from each other.

[0072] Auxiliary supports can be located between end support units and adjacent intermediate support units, or between intermediate support units. For example, multiple auxiliary supports can be provided depending on the overall span of the single-row photovoltaic support structure. Auxiliary supports can enhance the support strength of the first main cable 31 and the second main cable 32, making the overall structure of the main cables stable and less prone to deformation, with strong wind resistance. Auxiliary anchors are used to fix the auxiliary supports; in some embodiments of this disclosure, refer to... Figure 1 As shown, the auxiliary anchor can be pulled only along the length of the crossbar 61. Compared with the solution in the flexible photovoltaic bracket of related technologies that requires pulling the wind-resistant cable in different directions, it is also beneficial to reduce the occupation of land space, improve the building land utilization rate, and thus help increase the power generation capacity.

[0073] According to another aspect of this disclosure, a method for installing a photovoltaic array is also provided. This method can be used to form a single-row photovoltaic support structure as described in the foregoing exemplary embodiments. The method includes the following steps:

[0074] Step S100: Lay out the layout according to the design coordinates and construct the pipe pile foundation 70 arranged sequentially along the first direction, as well as the end anchor 51 located outside the pipe pile foundation 70 at the end.

[0075] Step S200: Install the first column 11, the second column 12, the first connecting rod 13 and the second connecting rod 14 on the pipe pile foundation 70 at the end to form an end support unit; install the third column 41 and the crossbeam 42 on the pipe pile foundation 70 located between the ends to form an intermediate support unit.

[0076] Step S300: Install the end anchors and connect the end anchor cables 52 between the first column 11 and the corresponding end ground anchors 51, and between the second column 12 and the corresponding end ground anchors 51.

[0077] Step S400: Pass the main cables through each support unit in sequence. The first main cable 31 passes through the first auxiliary member 21 at the top of the first column 11 and the third auxiliary member 23 at the top of the crossbeam 42; the second main cable 32 passes through the second auxiliary member 22 at the top of the second column 12 and the third auxiliary member 23 at the top of the crossbeam 42; the end of the first main cable 31 is tensioned and anchored using the first auxiliary member 21; the end of the second main cable 32 is tensioned and anchored using the second auxiliary member 22.

[0078] Step S500: Install the photovoltaic modules via the first main cable 31 and the second main cable 32;

[0079] Step S600: Install auxiliary supports between at least some of the adjacent support units, with the crossbar 61 of the auxiliary supports connected to the first main cable 31 and the second main cable 32 respectively; the crossbar 61 is tensioned and fastened to the ground by auxiliary anchors.

[0080] Specifically, in step S100, all foundation points are measured and marked according to the design coordinates, and then precast pipe piles are constructed to form the pipe pile foundation 70. In step S100, ground anchors can also be constructed to form end ground anchors 51, which are correspondingly set on the outside of the first column 11 and the second column 12.

[0081] In step S200, the end support unit and the middle support unit are installed. For the specific structure and connection method of each part, please refer to the description of the single-row photovoltaic support in the foregoing exemplary embodiment.

[0082] In step S400, after the acceptance steps S100 to S300 are passed, the main cable can be laid and tensioned and anchored. Acceptance items may include checking whether the verticality and horizontality of the components meet construction requirements. The main cable passes through each support unit sequentially. After tensioning, it is immediately tightened on the first and second members 21 and 22 on the end support unit, and can be protected with a special anchor sleeve.

[0083] For example, the first main cable 31 passes sequentially through the first auxiliary member 21 on the end support unit at one end, the third auxiliary member 23 on each intermediate support unit, and the first auxiliary member 21 on the end support unit at the other end. The two ends of the first main cable 31 are fastened by the first auxiliary members 21 on the two end support units. The second main cable 32 passes sequentially through the second auxiliary member 22 on the end support unit at one end, another set of third auxiliary members 23 on each intermediate support unit, and the second auxiliary member 22 on the end support unit at the other end. The two ends of the second main cable 32 are fastened by the second auxiliary members 22 on the two end support units.

[0084] In step S500, after the main cable is tensioned, the photovoltaic modules can be installed. Referring to the description of the single-row photovoltaic support in the foregoing exemplary embodiment, the two opposite sides of the photovoltaic panel can be fixed by the first main cable 31 and the second main cable 32 respectively, forming a stable single-row photovoltaic flexible support structure.

[0085] In step S600, the auxiliary support is installed by clamping the crossbar 61 to the main cable using U-shaped locking devices. After the crossbar 61 is connected to the first main cable 31 and the second main cable 32, the crossbar 61 is then fixed to the ground using auxiliary anchors to form a stable overall structure.

[0086] The photovoltaic array installation method provided in this disclosure can be used to form the single-row photovoltaic support system described in the aforementioned exemplary embodiments. In some embodiments, the single-row photovoltaic support system formed using the photovoltaic array installation method provided in this disclosure can have a design span of 20-150m, with a wide range of applications. It can solve the problems of high steel consumption, insufficient installation flexibility, inability to arrange on steep slopes, and unsatisfactory economic efficiency of fixed supports, greatly improving the utilization rate of building land. At the same time, it also helps to solve the problem of land wastage caused by wind cables in flexible support structures in related technologies, thereby increasing power generation capacity. It has high economic and social benefits and high scalability, laying the foundation for the research and development and large-scale application of more efficient and economical flexible photovoltaic support systems in complex scenarios.

[0087] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

Claims

1. A single-row photovoltaic support structure, characterized in that, It includes multiple support units arranged sequentially along a first direction; the main cable passes through each of the support units sequentially along the first direction; the support unit includes end support units located at both ends of the single row photovoltaic support, and intermediate support units located between the end support units; The end support unit includes a first column (11) and a second column (12), the first column (11) and the second column (12) are parallel to each other and arranged along a second direction, which is perpendicular to the first direction; The first column (11) is provided with a first bracket (21) at the top, and the second column (12) is provided with a second bracket (22) at the top. The elevation of the first bracket (21) is greater than the elevation of the second bracket (22). A first connecting rod (13) and a second connecting rod (14) are connected between the first column (11) and the second column (12); the first connecting rod (13) is located above the second connecting rod (14), and the distance between the endpoints of the first connecting rod (13) and the second connecting rod (14) at the first column (11) is greater than the distance between the endpoints of the second column (12); The intermediate support unit includes a third column (41) and a crossbeam (42). The crossbeam (42) is located on the top of the third column (41). The angle between the crossbeam (42) and the horizontal plane and the angle between the line connecting the first bracket (21) and the second bracket (22) and the horizontal plane are the same. A third bracket (23) is provided in pairs on the top of the crossbeam (42). The main cable includes a first main cable (31) and a second main cable (32) arranged in parallel. The first main cable (31) passes through the first lateral member (21) and the third lateral member (23). The first lateral member (21) is used to tension and anchor the two ends of the first main cable (31). The second main cable (32) passes through the second lateral member (22) and the third lateral member (23). The second lateral member (22) is used to tension and anchor the two ends of the second main cable (32).

2. The single-row photovoltaic support according to claim 1, characterized in that, The intermediate support unit includes a diagonal brace (43); the two ends of the diagonal brace (43) are respectively connected to the third column (41) and the crossbeam (42), and the angle between the diagonal brace (43) and the third column (41) is 20° to 70°.

3. The single-row photovoltaic support according to claim 1, characterized in that, The angle between the first connecting rod (13) and the second connecting rod (14) is 30 to 60°.

4. The single-row photovoltaic support according to claim 1, characterized in that, The first connecting rod (13) is higher at its end on the first column (11) than at its end on the second column (12); the second connecting rod (14) is lower at its end on the first column (11) than at its end on the second column (12); the first connecting rod (13) is higher at its end on the second column (12) than the second connecting rod (14) is higher at its end on the second column (12).

5. The single-row photovoltaic support according to claim 4, characterized in that, The first connecting rod (13) and the second connecting rod (14) are arranged adjacent to each other at the end of the second column (12); the first connecting rod (13) and the second connecting rod (14) are of equal length.

6. The single-row photovoltaic support according to claim 1, characterized in that, The end support unit is tensioned and fastened to the ground by end anchors, which include end ground anchors (51) and end anchor cables (52). The end ground anchors (51) are respectively located on the outer side of the first column (11) and the second column (12) along the first direction. The end anchor cables (52) are respectively connected between the first column (11) and the corresponding end ground anchor (51) and between the second column (12) and the corresponding end ground anchor (51).

7. The single-row photovoltaic support according to claim 6, characterized in that, The connection point of the end anchor cable (52) on the first column (11) is at the same height as the connection point on the second column (12).

8. The single-row photovoltaic support according to claim 7, characterized in that, The height of the connection point of the end anchor cable (52) on the first column (11) is equal to the height of the end of the second connecting rod (14) on the first column (11).

9. The single-row photovoltaic support according to claim 1, characterized in that, At least some of the adjacent support units are provided with auxiliary supports; the auxiliary supports include crossbars (61), which are respectively connected to the first main cable (31) and the second main cable (32); the crossbars (61) are tensioned and fastened to the ground by auxiliary anchors; the auxiliary anchors are arranged in pairs on the crossbars (61), and the auxiliary anchors include auxiliary ground anchors (53) and auxiliary anchor cables (54), the auxiliary ground anchors (53) are located below the crossbars (61), and the auxiliary anchor cables (54) are connected between the crossbars (61) and the auxiliary ground anchors (53); The two auxiliary anchors are coplanar with the crossbar (61), and the distance between the two auxiliary anchors (53) is greater than the distance between the connection points of the auxiliary anchor cables (54) on the crossbar (61). The two auxiliary anchors (53) respectively stretch the auxiliary anchor cables (54) in a direction away from each other.

10. A photovoltaic array installation method, characterized in that, include: The layout is carried out according to the design coordinates, and the construction forms a pipe pile foundation (70) arranged in sequence along the first direction, and an end anchor (51) located on the outside of the pipe pile foundation (70) at the end. The first column (11), the second column (12), the first connecting rod (13) and the second connecting rod (14) are installed on the end of the pipe pile foundation (70) to form an end support unit; The third column (41) and the crossbeam (42) are installed on the pipe pile foundation (70) located between the ends to form an intermediate support unit; Install end anchors and connect end anchor cables (52) between the first column (11) and the corresponding end ground anchor (51), and between the second column (12) and the corresponding end ground anchor (51); The main cables are passed sequentially through each of the support units. The first main cable (31) passes through the first spur member (21) at the top of the first column (11) and the third spur member (23) at the top of the crossbeam (42). The second main cable (32) passes through the second spur member (22) at the top of the second column (12) and the third spur member (23) at the top of the crossbeam (42). The end of the first main cable (31) is tensioned and anchored using the first spur member (21). The end of the second main cable (32) is tensioned and anchored using the second spur member (22). The photovoltaic modules are installed via the first main cable (31) and the second main cable (32); An auxiliary support is installed between at least some of the adjacent support units, and the crossbar (61) of the auxiliary support is connected to the first main cable (31) and the second main cable (32) respectively; the crossbar (61) is tensioned and fastened to the ground by an auxiliary anchor.

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