Photovoltaic flexible support system suitable for complex terrain and installation method

Abstract

This invention discloses a flexible photovoltaic support system and installation method suitable for complex terrain. The flexible photovoltaic support system includes two main support structures, load-bearing steel cable assemblies, and photovoltaic panel assemblies, all installed on the ground. Each load-bearing steel cable assembly has multiple cable crossing segments along its axial direction. Adjacent load-bearing steel cable assemblies are connected into a mesh structure by transverse cables. The installation method includes the following steps: first, pre-installing the main support structures on the ground; then, installing the load-bearing steel cable assemblies and constructing the cable crossing segments; next, connecting the cable crossing segments using transverse cables; and finally, installing the photovoltaic panel assemblies. By setting up cable crossing segments, each cable in the load-bearing steel cable assembly has multiple interconnection points. Combined with the transverse cables connecting adjacent load-bearing steel cable assemblies, the load-bearing steel cable assemblies form a pre-tensioned, integrated mesh structure. This structure can transfer local forces to the surrounding area, disperse local stress, increase overall stability, and improve wind resistance.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic structure application technology. Specifically, it relates to a flexible photovoltaic support system and installation method suitable for complex terrain. Background Technology

[0002] Land resources along highways are underutilized, especially in areas such as interchanges and ramp slopes, where large areas of land remain uncovered. However, due to the complex terrain and unique structures, traditional photovoltaic steel structure supports are neither adaptable nor economical. Furthermore, some highway service areas are heavy truck parking areas with large spans and high clearances; using rigid steel structures would present challenges such as high costs, heavy loads, and difficulties in ensuring safety.

[0003] Flexible support systems are increasingly being used in slope, riverbed, and mountainous terrain applications due to their high strength, lightweight, and ease of deployment. The top of a flexible support typically consists of at least two parallel load-bearing steel cables, upon which photovoltaic panels are fixedly laid. These cables possess excellent axial tensile strength, preventing axial displacement of the photovoltaic panels. However, their radial rigidity is somewhat lacking. For example, in strong winds, they are prone to radial swaying, i.e., swaying in the plane perpendicular to the axial direction, thus limiting the wind resistance of the photovoltaic system. Increasing the number of supports can mitigate this issue, but it significantly increases material consumption and foundation construction. Alternatively, prestressed steel cables can be installed below the load-bearing cables to provide a reaction force and support the cables, improving wind resistance. However, this requires more sophisticated construction techniques and is more challenging to implement. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to provide a photovoltaic flexible support system and installation method suitable for complex terrain, which connects the load-bearing steel cables on the entire photovoltaic panel mounting surface into a whole to form an elastic mesh structure, increases the radial rigidity of the flexible support, disperses local forces into overall forces, and improves wind resistance.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a photovoltaic flexible support system suitable for complex terrain, comprising two sets of main support structures set on the ground, load-bearing steel cable groups fixedly connected to the two sets of main support structures at both ends, and photovoltaic panel groups fixed on the surface of the load-bearing steel cable groups; two or more load-bearing steel cable groups are arranged at equal intervals between the two sets of main support structures, each load-bearing steel cable group is provided with multiple steel cable crossing sections along the axial direction, adjacent load-bearing steel cable groups are connected into a mesh by transverse cables, and the transverse cables are connected to positions other than the steel cable crossing sections of the load-bearing steel cable groups.

[0006] The aforementioned flexible photovoltaic support system suitable for complex terrain has a damping structure connected in the middle of the load-bearing steel cable group. The damping structure includes a damper, a steel wire rope, and a counterweight. One end of the damper is fixedly connected to the load-bearing steel cable group by bolts, and the other end of the damper is connected to the counterweight by the steel wire rope. The counterweight is placed on the ground.

[0007] The aforementioned flexible photovoltaic support system suitable for complex terrain includes an auxiliary support structure located between the two main support structures. The auxiliary support structure includes an auxiliary platform, a column, and an auxiliary beam. The auxiliary platform is fixed to the ground, the column is fixed to the auxiliary platform, the auxiliary beam is mounted on the top of the column, and the load-bearing steel cable assembly is fixed to the auxiliary beam.

[0008] The aforementioned flexible photovoltaic support system suitable for complex terrain includes a main support structure comprising precast pipe piles driven into the ground by a hammer method, a main bearing platform formed by concrete pouring at the end of the precast pipe piles, and load-bearing columns and side columns fixed on the main bearing platform. The load-bearing columns are vertically fixed on the main bearing platform, the side columns are inclined toward the load-bearing columns, the top of the side columns are fixedly connected to the top of the load-bearing columns, a crossbeam is fixedly connected to the top of the load-bearing columns, and the end of the load-bearing steel cable assembly is fixedly connected to the crossbeam.

[0009] The aforementioned flexible photovoltaic support system suitable for complex terrain further includes a first reinforcing rod, a second reinforcing rod, and a third reinforcing rod. One end of the first reinforcing rod is fixedly connected to the load-bearing column, and the other end of the first reinforcing rod is fixedly connected to the side column. For two adjacent main support structures: adjacent side columns are fixedly connected by the second reinforcing rod, and adjacent load-bearing columns are also fixedly connected by the second reinforcing rod. Adjacent side columns and load-bearing columns at the edge are connected by the intersecting third reinforcing rods.

[0010] The aforementioned flexible photovoltaic support system suitable for complex terrain includes a load-bearing cable assembly comprising a first cable, a second cable, and two or more support rods. The first ends of the first and second cables are respectively fixedly connected to the first main support structure, and the second ends of the first and second cables pass through the support rods and are fixedly connected to the second main support structure. The support rods are perpendicular to the extension directions of the first and second cables. The support rods are twisted at least one turn along a plane perpendicular to the extension directions of the first and second cables, causing the first and second cables to intertwine and form cable intersection segments. The four corners of the photovoltaic panel assembly are respectively fixedly connected to the first and second cables.

[0011] The above-mentioned flexible photovoltaic support system suitable for complex terrain has a spacing between two adjacent support rods equal to the length of the photovoltaic panel group. The photovoltaic panel group is arranged between two adjacent support rods. The two corners of one long side of the photovoltaic panel group are fixedly connected to the first steel cable through brackets and U-bolts. The two corners of the other long side of the photovoltaic panel group are also fixedly connected to the second steel cable through brackets and U-bolts.

[0012] The aforementioned flexible photovoltaic support system suitable for complex terrain, wherein after the support rod is twisted to form a cross section by intertwining the first and second steel cables: the cross section applies a reverse torque opposite to the direction of twisting to the support rod; the first end of the support rod has a downward rotation tendency, and the second end of the support rod has an upward rotation tendency; a sleeve is fixed at the position in front of the upward rotation tendency of the second end of the support rod; in the adjacent load-bearing steel cable group: the first end of the transverse cable is fixedly connected to the first end of the support rod in the first group of load-bearing steel cable group; the second end of the transverse cable passes through the sleeve and is fixedly connected to the first end of the support rod in the second group of load-bearing steel cable group and is in a taut state.

[0013] The aforementioned flexible photovoltaic support system suitable for complex terrain has the ends of the first and second steel cables fixedly connected to the main support structure via a fixing structure. The fixing structure includes a steel pipe, a lock head, a threaded rod, a spherical seat, a spherical pad, and a nut. The steel pipe is welded to the top of the main support structure along the extension direction of the first steel cable. The end of the first steel cable is fixedly connected to the lock head. One end of the threaded rod is fixedly connected to the lock head, and the other end passes through the steel pipe, the spherical seat, and the spherical pad in sequence. The nut is tightened on the threaded rod and abuts against the spherical pad to tighten the first steel cable.

[0014] A method for installing flexible photovoltaic support systems suitable for complex terrain includes the following steps:

[0015] Step A: Set up two sets of main support structures at predetermined locations on the ground;

[0016] Step B: Fix both ends of the load-bearing steel cable assembly to the two main support structures using fixing structures;

[0017] Step C: On the load-bearing steel cable assembly, within the area where each photovoltaic panel assembly needs to be installed, cross the load-bearing steel cable assembly to form a steel cable intersection section, so that each photovoltaic panel assembly has a steel cable intersection section below it, and at the same time use the steel cable intersection section to tighten the entire load-bearing steel cable assembly;

[0018] Step D: Connect the transverse cables to the areas outside the cable crossing sections of the adjacent two sets of load-bearing steel cables to form a mesh, and use the transverse cables to balance the reverse torque of the cable crossing sections;

[0019] Step E: Secure the four corners of the photovoltaic panel assembly to the intersections of the steel cables to complete the installation of the photovoltaic panel assembly.

[0020] The technical solution of the present invention achieves the following beneficial technical effects:

[0021] 1. By setting up steel cable intersections, each steel cable in the load-bearing steel cable group has multiple interconnection points, and the steel cables form an angle with each other. In conjunction with the lateral tension cable connecting adjacent load-bearing steel cable groups, the load-bearing steel cable groups form an integral mesh structure with pre-tension. When a local photovoltaic panel is subjected to wind force, the local force can be transferred to the surrounding area, dispersing the local stress, increasing the overall stability, and thus improving the wind resistance effect.

[0022] 2. By twisting the first and second steel cables, a cross section is formed where the cables intertwine. Axially, due to the intertwining of the cables, an additional portion of the original parallel cable length is occupied, axially tightening the entire load-bearing cable assembly and placing it in a prestressed state. This increases initial rigidity and provides the load-bearing cable assembly with more axial expansion and contraction space. In the event of strong winds or other weather conditions, this provides greater elasticity and damping, effectively mitigating the force of the wind. Furthermore, the increased axial expansion and contraction space can automatically adapt to large temperature differences between day and night. The effects of thermal expansion and contraction are mitigated to maintain the load-bearing steel cable group at a reasonable tension. Due to the torsion of the two steel cables, they have a reverse torque with an opposing rotational tendency. This torque, combined with the transverse tension cable, balances the reverse torque and keeps the mesh surface flat. Adjacent load-bearing steel cable groups are mutually restrained and balanced by the reverse torque of the steel cables through the transverse tension cable, forming "elasticity" in the radial direction perpendicular to the extension direction of the steel cables. When the photovoltaic panel on a local load-bearing steel cable group is subjected to wind force, the transverse tension cable is used to transfer the torsional force to the adjacent load-bearing steel cable group, and the reverse torque is used to suppress the swaying and torsion of the wind-exposed position. Attached Figure Description

[0023] Figure 1 A top view of the photovoltaic flexible support system of the present invention;

[0024] Figure 2 A front view schematic diagram of the photovoltaic flexible support system of the present invention;

[0025] Figure 3 A front view schematic diagram of the damping structure of the present invention;

[0026] Figure 4 A top view of the main support structure of the present invention;

[0027] Figure 5 A front view schematic diagram of the fixing structure of the present invention;

[0028] Figure 6 A schematic diagram of the photovoltaic panel assembly of the present invention mounted on a load-bearing steel cable assembly;

[0029] Figure 7 A top view of the load-bearing steel cable assembly of the present invention;

[0030] Figure 8 A top view of a partial structural diagram of the cable crossing section of this invention;

[0031] Figure 9 Axonometric view of the load-bearing steel cable assembly of the present invention;

[0032] Figure 10 Axonometric schematic diagram of the first and second steel cables in their initial parallel state according to the present invention.

[0033] The reference numerals in the diagram are as follows: 1-Main support structure; 11-Main foundation; 12-Precast pipe pile; 13-Bearing column; 14-Side column; 15-First reinforcing rod; 16-Crossbeam; 17-Second reinforcing rod; 18-Third reinforcing rod;

[0034] 2-Auxiliary support structure; 21-Auxiliary support platform; 22-Column; 23-Auxiliary crossbeam;

[0035] 3-Load-bearing steel cable assembly; 31-First steel cable; 32-Second steel cable; 33-Support rod; 34-Cable crossing section; 35-Sleeve; 36-Transverse cable;

[0036] 4-Damping structure; 41-Damper; 42-Wire rope; 43-Counterweight;

[0037] 5-Photovoltaic panel assembly; 51-Bracket; 52-U-bolt;

[0038] 6-Fixed structure; 61-Steel pipe; 62-Lock head; 63-Threaded rod; 64-Spherical seat; 65-Spherical washer; 66-Nut. Detailed Implementation

[0039] Example 1

[0040] This embodiment is suitable for photovoltaic flexible support systems in complex terrain, such as... Figure 1-2 It includes two main support structures 1 set on the ground, load-bearing steel cable groups 3 fixedly connected to the two main support structures 1 at both ends, and photovoltaic panel groups 5 fixed to the surface of the load-bearing steel cable groups 3; the two main support structures 1 are arranged parallel to each other and have a certain lateral width, such as Figure 7As shown, between the two main support structures 1, two or more load-bearing steel cable groups 3 are arranged at equal intervals along the transverse direction. Each load-bearing steel cable group 3 is provided with multiple steel cable crossing sections 34 along the axial direction, and each steel cable crossing section 34 corresponds to the installation position of each photovoltaic panel group 5. The photovoltaic panel group 5 is installed at the position of the steel cable crossing section 34. Adjacent load-bearing steel cable groups 3 are connected into a mesh by transverse cables 36, and the transverse cables 36 are connected to positions other than the steel cable crossing sections 34 of the load-bearing steel cable groups 3.

[0041] like Figure 2 As shown, the main support structure 1 includes precast pipe piles 12 driven into the stratum by hammering, a main bearing platform 11 formed by concrete pouring at the end of the precast pipe piles 12, and load-bearing columns 13 and side columns 14 fixed on the main bearing platform 11. The load-bearing column 13 is located outside the side column 14 and is vertically fixed on the main bearing platform 11. The side column 14 is inclined towards the load-bearing column 13, and the top of the side column 14 is fixedly connected to the top of the load-bearing column 13 to form a stable right-angled triangle structure. The side column 14 is designed on the inside, which can reduce the land area occupied and increase the photovoltaic panel laying area. Since the load-bearing steel cable group 3 mainly bears the tension, the side column 14 provides support for the load-bearing column 13 and can better resist the longitudinal tension applied by the load-bearing steel cable group 3 and the steel cable crossing section 34 to form a stable structure. A crossbeam 16 is fixedly connected to the top of the load-bearing column 13, and the end of the load-bearing steel cable group 3 is fixedly connected to the crossbeam 16.

[0042] To further improve the strength of the main support structure 1, such as Figure 4 As shown, a first reinforcing rod 15, a second reinforcing rod 17, and a third reinforcing rod 18 are designed for auxiliary reinforcement. One end of the first reinforcing rod 15 is fixedly connected to the load-bearing column 13, and the other end of the first reinforcing rod 15 is fixedly connected to the side column 14. For two adjacent main support structures 1, the adjacent side columns 14 are fixedly connected by the second reinforcing rod 17, and the adjacent load-bearing columns 13 are also fixedly connected by the second reinforcing rod 17. The adjacent side columns 14 and load-bearing columns 13 at the edge are connected by the cross-arranged third reinforcing rods 18 to improve the overall stability of the main support structure 1.

[0043] like Figure 1-2 Located in the middle of the two main support structures 1, an auxiliary support structure 2 is set parallel to the main support structure 1. The auxiliary support structure 2 includes an auxiliary support platform 21, a column 22, and an auxiliary crossbeam 23. The auxiliary support platform 21 is cast in concrete on the ground. The column 22 is fixed on the auxiliary support platform 21. The auxiliary crossbeam 23 is erected on the top of the column 22. The load-bearing steel cable group 3 is fixed in the middle on the auxiliary crossbeam 23, which plays a role in auxiliary support.

[0044] like Figure 2-3A damping structure 4 is connected to the load-bearing steel cable assembly 3, specifically arranged between the main support structure 1 and the auxiliary support structure 2. The damping structure 4 includes a damper 41, a steel wire rope 42, and a counterweight 43. One end of the damper 41 is fixedly connected to the load-bearing steel cable assembly 3 by bolts, and the other end of the damper 41 is connected to the counterweight 43 by the steel wire rope 42. The damper 41 is a spring damper, and the counterweight 43 is a concrete block placed on the ground.

[0045] like Figure 7-8 As shown, the load-bearing steel cable assembly 3 includes a first steel cable 31, a second steel cable 32, and two or more support rods 33. Initially, the first steel cable 31 and the second steel cable 32 are spaced a certain distance apart and parallel to each other. The first ends of the first steel cable 31 and the second steel cable 32 are fixedly connected to the first main support structure 1, respectively. The second ends of the first steel cable 31 and the second steel cable 32 pass through each support rod 33 and are then fixedly connected to the second main support structure 1. The support rods 33 are arranged at the required spacing, and the support rods 33 are perpendicular to the extension direction of the first steel cable 31 and the second steel cable 32. The support rods are then secured with bolts. The two ends of the rod 33 are fixed to the first steel cable 31 and the second steel cable 32 respectively; the support rod 33 is twisted at least one turn along a plane perpendicular to the extension direction of the first steel cable 31 and the second steel cable 32, so that the first steel cable 31 and the second steel cable 32 cross and intertwine to form a steel cable cross section 34. In the middle part of the steel cable cross section 34, the two steel cables are intertwined and tightened. After all the steel cable cross sections 34 are completed, the load-bearing steel cable group 3 is tightened as a whole, so that it has greater axial elasticity, which can suppress the swaying caused by wind and avoid the whip tip effect. At the same time, it can balance the length change caused by thermal expansion and contraction and keep it taut.

[0046] like Figure 6 and Figure 8 As shown, the four corners of the photovoltaic panel group 5 are fixedly connected to the first steel cable 31 and the second steel cable 32 respectively. The distance between two adjacent support rods 33 is equal to the length of the photovoltaic panel group 5. The photovoltaic panel group 5 is arranged between two adjacent support rods 33. The two corners of one long side of the photovoltaic panel group 5 are fixedly connected to the first steel cable 31 through brackets 51 and U-bolts 52. The two corners of the other long side of the photovoltaic panel group 5 are also fixedly connected to the second steel cable 32 through brackets 51 and U-bolts 52.

[0047] like Figure 9 As shown, after the support rod 33 is twisted, causing the first steel cable 31 and the second steel cable 32 to intertwine and form a cable crossing segment 34, the intertwining of the steel cables exerts a reverse torque on the support rod 33 in the opposite direction of the twist. In a specific design, such as... Figure 10As shown, taking the axial direction of a set of load-bearing steel cable group 3 as an example, the support rods 33 on the load-bearing steel cable group 3 are sequentially marked as 1#, 2#, 3#, 4#...n#. Then, support rods 1# and 3# are temporarily fixed to prevent them from rotating. A torsional force is applied to support rod 2# and it is rotated at least one revolution, so that the first steel cable 31 and the second steel cable 32 are intertwined. At this time, support rod 2# has a reverse torque opposite to the torsional direction. In the same way, a torsional force in the same direction is applied to the support rods 33 of the adjacent load-bearing steel cable group 3.

[0048] The reverse torque borne by the support rod 33 is defined separately. The first end of the support rod 33 has a downward rotation tendency, and the second end of the support rod 33 has an upward rotation tendency. A sleeve 35 is fixed at the second end of the support rod 33 at the position in front of the upward rotation tendency. Figure 9 As shown by the red line, to fix the two #2 support rods 33, the first end of the transverse cable 36 is fixedly connected to the first end of the support rod 33 in the first set of load-bearing steel cable group 3. The second end of the transverse cable 36 passes through the sleeve 35 and is fixedly connected to the first end of the support rod 33 in the second set of load-bearing steel cable group 3, and is in a taut state, completing the partial connection of the adjacent load-bearing steel cable group 3. The downward rotation tendency of the first end of the #2 support rod 33 is restrained by the transverse cable 36. When the first end rotates downward, the second end rotates upward. The transverse cable 36 passes through the sleeve 35, pressing down the upward rotation tendency of the second end, and the downward rotation of the first end is transferred to the first end of the adjacent support rod 33. Although the #1 support rod 33 and the #3 support rod 33 are not directly subjected to torsional force, they are subjected to the torsional force of the steel cable, which will generate a force opposite to the torque of the #2 support rod 33, that is, a torque in the same direction as the torsion of the #2 support rod 33. Based on the above principle, as Figure 9 As shown by the blue line, the adjacent No. 1 support rod 33 and No. 3 support rod 33 are connected by the transverse cable 36, and the temporary fixation is released. If the steel cable at the position of No. 1 support rod 33 is directly connected to the crossbeam 16, then No. 1 support rod 33 and transverse cable 36 are not required. Then, using the same principle, the load-bearing steel cable group 3 in the entire installation area is interconnected to form a mesh structure. This mesh structure has longitudinal and transverse elasticity, which suppresses the radial sway of the load-bearing steel cable group 3 and improves the wind resistance effect. At the same time, no additional brackets or reaction steel cables are required, and the construction requirements are relatively low.

[0049] like Figure 5As shown, the ends of the first steel cable 31 and the second steel cable 32 are both fixedly connected to the crossbeam 16 at the top of the main support structure 1 through the fixing structure 6. The fixing structure 6 includes a steel pipe 61, a lock head 62, a threaded rod 63, a spherical seat 64, a spherical pad 65, and a nut 66. The steel pipe 61 is welded to the top of the crossbeam 16 along the extension direction of the first steel cable 31. The end of the first steel cable 31 is fixedly connected to the lock head 62. One end of the threaded rod 63 is fixedly connected to the lock head 62, and the other end passes through the steel pipe 61, the spherical seat 64, and the spherical pad 65 in sequence. The nut 66 is tightened on the threaded rod 63 and abuts against the spherical pad 65. By tightening the nut 66, the threaded rod 63 pulls the first steel cable 31 taut.

[0050] Example 2

[0051] Flexible photovoltaic (PV) brackets are deployed along a highway toll station area in a certain region. Specifically, the design involves installing these brackets in locations with large areas of unused ground, such as ramp entrances and curves, to generate electricity using photovoltaic power. The installation of the flexible PV bracket system in Example 1 includes the following steps:

[0052] Step A: Set up two sets of main support structures 1 at the predetermined locations on the ground; first, drive the precast pipe piles 12 into the stratum using the hammering method according to the drawings, then arrange the steel cage based on the ends of the precast pipe piles 12 and connect the steel bars together, finally set up the formwork and pour concrete to form the main support platform 11; fix the load-bearing columns 13 and side columns 14 on the main support platform 11 and assemble the steel structure, finally install the first reinforcing rod 15, the second reinforcing rod 17 and the third reinforcing rod 18 to improve the overall stability of the main support structure 1;

[0053] Step B: Fix both ends of the load-bearing steel cable group 3 to the two main support structures 1 through the fixing structure 6 respectively; at this time, the load-bearing steel cable group 3 is in a relaxed state, and the specific relaxation amount is calculated based on the sum of the tightened lengths of each steel cable intersection section 34;

[0054] Step C: On the load-bearing steel cable group 3, within the range of each photovoltaic panel group 5 that needs to be installed, the load-bearing steel cable group 3 is cross-set to form a steel cable cross section 34, so that each photovoltaic panel group 5 has a steel cable cross section 34 below it. Since the steel cable cross section 34 will occupy a part of the length, the entire load-bearing steel cable group 3 is tightened. Finally, the tension can be adjusted by the fixing structure 6.

[0055] Step D: Connect the transverse cable 36 to each support rod 33 outside the area of ​​the cable crossing section 34 of the two adjacent load-bearing cable groups 3 to form an elastic mesh structure, and use the transverse cable 36 to balance the reverse torque of the cable crossing section 34.

[0056] Step E: Fix the four corners of the photovoltaic panel group 5 to the steel cable intersection section 34 respectively to complete the installation of the photovoltaic panel group 5.

[0057] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A flexible photovoltaic support system suitable for complex terrain, characterized in that, It includes two sets of main support structures (1) set on the ground, load-bearing steel cable groups (3) fixedly connected to the two sets of main support structures (1) at both ends, and photovoltaic panel groups (5) fixed on the surface of the load-bearing steel cable groups (3); two or more load-bearing steel cable groups (3) are arranged at equal intervals between the two sets of main support structures (1), and each load-bearing steel cable group (3) is provided with multiple steel cable crossing sections (34) along the axial direction. Adjacent load-bearing steel cable groups (3) are connected into a mesh by transverse cables (36), and the transverse cables (36) are connected to positions other than the steel cable crossing sections (34) of the load-bearing steel cable groups (3).

2. The photovoltaic flexible support system suitable for complex terrain according to claim 1, characterized in that, The load-bearing steel cable assembly (3) is connected to a damping structure (4) in the middle. The damping structure (4) includes a damper (41), a steel wire rope (42), and a counterweight (43). One end of the damper (41) is fixedly connected to the load-bearing steel cable assembly (3) by bolts, and the other end of the damper (41) is connected to the counterweight (43) by the steel wire rope (42). The counterweight (43) is placed on the ground.

3. The photovoltaic flexible support system suitable for complex terrain according to claim 1, characterized in that, An auxiliary support structure (2) is provided between the two sets of main support structures (1). The auxiliary support structure (2) includes an auxiliary support platform (21), a column (22) and an auxiliary crossbeam (23). The auxiliary support platform (21) is fixed on the ground, the column (22) is fixed on the auxiliary support platform (21), the auxiliary crossbeam (23) is erected on the top of the column (22), and the load-bearing steel cable group (3) is fixed on the auxiliary crossbeam (23).

4. The photovoltaic flexible support system suitable for complex terrain according to claim 1, characterized in that, The main support structure (1) includes a precast pipe pile (12) driven into the stratum by hammering, a main bearing platform (11) formed by concrete pouring at the end of the precast pipe pile (12), and a load-bearing column (13) and a side column (14) fixed on the main bearing platform (11). The load-bearing column (13) is vertically fixed on the main bearing platform (11), and the side column (14) is inclined toward the load-bearing column (13). The top of the side column (14) is fixedly connected to the top of the load-bearing column (13). A crossbeam (16) is fixedly connected to the top of the load-bearing column (13), and the end of the load-bearing steel cable group (3) is fixedly connected to the crossbeam (16).

5. The photovoltaic flexible support system suitable for complex terrain according to claim 4, characterized in that, It also includes a first reinforcing rod (15), a second reinforcing rod (17) and a third reinforcing rod (18). One end of the first reinforcing rod (15) is fixedly connected to the load-bearing column (13), and the other end of the first reinforcing rod (15) is fixedly connected to the side column (14). The two adjacent main support structures (1): the adjacent side columns (14) are fixedly connected by the second reinforcing rod (17), and the adjacent load-bearing columns (13) are also fixedly connected by the second reinforcing rod (17). The adjacent side columns (14) and the load-bearing columns (13) at the edge are connected by the cross-arranged third reinforcing rods (18).

6. The photovoltaic flexible support system suitable for complex terrain according to claim 1, characterized in that, The load-bearing steel cable group (3) includes a first steel cable (31), a second steel cable (32), and two or more support rods (33). The first ends of the first steel cable (31) and the second steel cable (32) are respectively fixedly connected to the first main support structure (1). The second ends of the first steel cable (31) and the second steel cable (32) pass through the support rods (33) and are then fixedly connected to the second main support structure (1). The support rods (33) are perpendicular to the extension direction of the first steel cable (31) and the second steel cable (32). The support rods (33) are twisted at least one turn along a plane perpendicular to the extension direction of the first steel cable (31) and the second steel cable (32), so that the first steel cable (31) and the second steel cable (32) intertwine to form a steel cable intersection segment (34). The four corners of the photovoltaic panel group (5) are respectively fixedly connected to the first steel cable (31) and the second steel cable (32).

7. The photovoltaic flexible support system suitable for complex terrain according to claim 6, characterized in that, The distance between two adjacent support rods (33) is equal to the length of the photovoltaic panel group (5). The photovoltaic panel group (5) is arranged between two adjacent support rods (33). The two corners of one long side of the photovoltaic panel group (5) are fixedly connected to the first steel cable (31) through brackets (51) and U-bolts (52). The two corners of the other long side of the photovoltaic panel group (5) are also fixedly connected to the second steel cable (32) through brackets (51) and U-bolts (52).

8. The photovoltaic flexible support system suitable for complex terrain according to claim 6, characterized in that, After the support rod (33) is twisted so that the first steel cable (31) and the second steel cable (32) cross and intertwine to form a steel cable cross section (34): the steel cable cross section (34) applies a reverse torque to the support rod (33) in the opposite direction of the twisting direction. The first end of the support rod (33) has a downward rotation tendency, and the second end of the support rod (33) has an upward rotation tendency. A sleeve (35) is fixed at the second end of the support rod (33) at the position in front of the upward rotation tendency. Adjacent load-bearing cable group (3): The first end of the transverse cable (36) is fixedly connected to the first end of the support rod (33) in the first load-bearing cable group (3), and the second end of the transverse cable (36) passes through the sleeve (35) and is fixedly connected to the first end of the support rod (33) in the second load-bearing cable group (3) and is in a taut state.

9. The photovoltaic flexible support system suitable for complex terrain according to claim 6, characterized in that, The ends of the first steel cable (31) and the second steel cable (32) are fixedly connected to the main support structure (1) through a fixing structure (6); the fixing structure (6) includes a steel pipe (61), a lock head (62), a threaded rod (63), a spherical seat (64), a spherical pad (65) and a nut (66). The steel pipe (61) is welded to the top of the main support structure (1) along the extension direction of the first steel cable (31). The end of the first steel cable (31) is fixedly connected to the lock head (62). One end of the threaded rod (63) is fixedly connected to the lock head (62), and the other end passes through the steel pipe (61), the spherical seat (64) and the spherical pad (65) in sequence. The nut (66) is tightened on the threaded rod (63) and abuts against the spherical pad (65) to tighten the first steel cable (31).

10. A method for installing flexible photovoltaic supports suitable for complex terrain, characterized in that, The installation of the photovoltaic flexible support system according to any one of claims 1 to 9 includes the following steps: Step A: Set up two sets of main support structures (1) at the preset locations on the ground. Step B: Fix both ends of the load-bearing steel cable group (3) to the two main support structures (1) through the fixing structure (6); Step C: On the load-bearing steel cable group (3), within the range of each photovoltaic panel group (5) that needs to be installed, the load-bearing steel cable group (3) is cross-set to form a steel cable cross section (34), so that each photovoltaic panel group (5) has a steel cable cross section (34) below it, and the entire load-bearing steel cable group (3) is tightened by the steel cable cross section (34). Step D: Connect the transverse cable (36) to the adjacent two sets of load-bearing steel cable groups (3) in the area outside the steel cable crossing section (34) to form a mesh, and use the transverse cable (36) to balance the reverse torque of the steel cable crossing section (34); Step E: Fix the four corners of the photovoltaic panel group (5) to the steel cable intersection section (34) respectively to complete the installation of the photovoltaic panel group (5).

Images