Single-pile large-area truss type regular polygon photovoltaic support and photovoltaic system

Abstract

The utility model relates to the field of photovoltaic technology, and particularly discloses a single-pile large-area truss-type regular polygon photovoltaic support and a photovoltaic system, which at least comprise a central tube, a radial truss, a circumferential truss, an upper inhaul cable and a lower inhaul cable, one end of the radial truss is fixedly connected to the central tube, and the other end of the circumferential truss is fixedly connected to the central tube. At least four radial trusses with the same structure are uniformly distributed around the central pipe; the circumferential trusses are installed between every two adjacent radial trusses, the circumferential trusses with the single edges connected form a regular polygon, and the circumferential trusses between every two adjacent radial trusses are parallel to each other. According to the structure, the radial trusses and the circumferential trusses are combined to form the regular polygon photovoltaic support, and the diameter of the inscribed circle of the regular polygon can be large or small; the gravity center of the photovoltaic support is concentrated on the central pipe, and only one support pile is needed, so that the cost is saved, the use on land is reduced, and the photovoltaic support can be flexibly applied to places such as oceans, hills, river valleys and the like where piling and the like are difficult to construct.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, specifically to a monopile large-area truss-type regular polygonal photovoltaic support and photovoltaic system. Background Technology

[0002] How to install photovoltaic power generation equipment in complex environments such as oceans, mountains, and lakes has become one of the hot topics in the field of renewable energy power generation. To this end, engineers have come up with a variety of technical solutions, including floating, flexible thin film, and bracket-type solutions.

[0003] Among them, common existing photovoltaic support structures include: a large-span photovoltaic steel truss structure disclosed in Chinese invention patent publication number CN116623798A; a large-span offshore photovoltaic truss support structure disclosed in utility model patent announcement number CN220935052U; a large-span offshore photovoltaic support and its transportation method disclosed in Chinese invention patent publication number CN118508842A; and a pile-based fixed offshore photovoltaic array support disclosed in Chinese utility model patent announcement number CN219697529U, etc.

[0004] All of the above patents use multiple support piles to support the truss structure, and the photovoltaic panels are installed on the truss structure. This solution is feasible in shallow seas and lakes, but as the water depth increases, all the support piles must be lengthened and thickened, which leads to a sharp increase in cost. Ultimately, it cannot be applied to deeper oceans and lakes due to economic reasons.

[0005] To address this, Chinese utility model patent CN220746998U discloses a monopile offshore photovoltaic (PV) support structure. This PV support structure uses monopile support, overcoming the technical limitation of multipile support in terms of its limited application scope. However, this monopile offshore PV support structure is relatively tall and complex in the vertical direction, and its overall inclined configuration results in poor stability, limiting the area of ​​the PV support structure and thus significantly restricting its application scenarios. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to provide a single-pile large-area truss-type regular polygonal photovoltaic support and photovoltaic system, so as to solve the technical defects of the existing technology, such as the small application range of multi-pile support, the poor structural stability of single-pile support, and the small area of ​​the supporting structure.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: A monopile large-area truss-type regular polygon photovoltaic support, comprising at least:

[0008] A central tube, the lower end of which is provided with a lower mounting structure;

[0009] A radial truss extends along the radial direction of the central tube, one end of which is fixedly connected to the central tube, and at least four radial trusses with the same structure are evenly distributed around the central tube;

[0010] A circumferential truss is installed between two adjacent radial trusses. Multiple circumferential trusses connected on one side form a regular polygon. Multiple regular polygons with different sizes of inscribed circles composed of circumferential trusses are arranged along the radial direction of the central tube. The circumferential trusses between two adjacent radial trusses are parallel to each other.

[0011] The upper cable is provided above the radial truss, with one end of the upper cable fixed to the central tube and the other end fixed to the radial truss.

[0012] The lower cables are arranged below the radial truss and the circumferential truss, with one end of the lower cable fixed to the central tube and the other end fixed to the radial truss or the circumferential truss.

[0013] This embodiment of a monopile large-area truss-type regular polygon photovoltaic support uses radial and circumferential trusses to form a regular polygon photovoltaic support. The diameter of the inscribed circle of this regular polygon can be large or small, generally 5-300 meters. Since the center of gravity of this photovoltaic support is concentrated in the central tube, only one support pile is needed, which not only saves costs but also reduces the use of land. It can be flexibly applied in places where construction and piling are difficult, such as oceans, hills, and river valleys.

[0014] In addition, the installation of upper and lower cables effectively distributes the forces borne by the radial truss, improving the overall structural reliability.

[0015] In a preferred embodiment, the lower cable includes radial cables corresponding to the radial truss and multiple sets of intersecting diagonal cables. One end of the radial cable is fixed to the central tube, and the other end is fixed to the radial truss; one end of the diagonal cable is fixed to the central tube, and the other end is fixed to the radial truss or the circumferential truss. The diagonal cables improve the torsional strength of the photovoltaic support, thereby enhancing the overall structural stability.

[0016] In a preferred embodiment, the radial truss and circumferential truss are planar trusses and / or space trusses.

[0017] In a preferred embodiment, when the diameter of the inscribed circle of the regular polygon formed by the outermost circumferential trusses is less than 60 meters, the radial trusses and circumferential trusses are planar trusses; when the diameter of the inscribed circle of the regular polygon formed by the outermost circumferential trusses is greater than 80 meters, the radial trusses and circumferential trusses are spatial trusses; when the diameter of the inscribed circle of the regular polygon formed by the outermost circumferential trusses is between 60 meters and 80 meters, the radial trusses and circumferential trusses are planar trusses or spatial trusses.

[0018] In a preferred embodiment, the upper end of the central tube is provided with an upper mounting structure.

[0019] In a preferred embodiment, the lower mounting structure and / or upper mounting structure is a mounting flange.

[0020] This application also discloses a photovoltaic system, comprising at least:

[0021] Support piles, each of which is fixedly installed;

[0022] The aforementioned monopile large-area truss-type regular polygon photovoltaic support is installed on the top of the support pile through a lower installation structure;

[0023] A number of photovoltaic panels are laid flat on the circumferential truss.

[0024] This application also discloses a photovoltaic system, comprising at least:

[0025] Support piles, each of which is fixedly installed;

[0026] The aforementioned monopile large-area truss-type regular polygon photovoltaic support is installed on the top of the support pile through a lower installation structure;

[0027] A photovoltaic panel is provided on a circumferential truss with several support frames. The photovoltaic panel is installed on the support frames and is inclined relative to the upper surface of the circumferential truss.

[0028] This application also discloses a photovoltaic system, comprising at least:

[0029] Support piles, each of which is fixedly installed;

[0030] The aforementioned monopile large-area truss-type regular polygon photovoltaic support is installed on the top of the support pile through a lower installation structure;

[0031] Photovoltaic panels, a plurality of the photovoltaic panels are laid flat on the circumferential truss, or are installed obliquely on the circumferential truss by means of a support frame;

[0032] A wind power generation system, comprising a mounting column and a wind turbine located at the top of the mounting column, wherein the lower end of the mounting column is mounted to the upper end of the central tube via an upper mounting structure.

[0033] The photovoltaic system in this embodiment uses a single support pile, which can be flexibly applied in places where construction and piling are difficult, such as oceans, hills, and river valleys. Especially in deep oceans and lakes, only the single support pile needs to be enlarged and thickened, resulting in lower cost, better reliability, and a wider range of applications. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural schematic diagram of a monopile large-area truss-type regular polygon photovoltaic support as shown in Example 1;

[0035] Figure 2 for Figure 1 The side view of the monopile large-area truss-type regular polygon photovoltaic support shown.

[0036] Figure 3 for Figure 1 The top view of the monopile large-area truss-type regular polygon photovoltaic support shown.

[0037] Figure 4 This is a schematic diagram of the layout of the lower cables in the monopile large-area truss-type regular polygon photovoltaic support in this embodiment;

[0038] Figure 5 This is a schematic diagram of the structure of a single-pile large-area truss-type regular polygon photovoltaic support as shown in Example 2;

[0039] Figure 6 This is a schematic diagram of the photovoltaic system shown in Example 3;

[0040] Figure 7 This is a schematic diagram of the photovoltaic system shown in Example 4. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0042] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0044] Example 1

[0045] This embodiment presents a monopile large-area truss-type regular polygon photovoltaic support, such as... Figures 1-3 As shown, it includes a central tube 5, a circumferential truss 1, a radial truss 2, a lower cable 41, and an upper cable 42. The axial length of the central tube 5 is greater than the height of the circumferential truss 1 and the radial truss 2.

[0046] The central tube 5 has a lower mounting structure 51 at its lower end and an upper mounting structure 52 at its upper end. It should be noted that in this embodiment, the lower mounting structure 51 may only be provided at the lower end of the central tube 5, without any mounting structure at the upper end.

[0047] In this embodiment, preferably, the main body of the central tube 5 is a hollow steel pipe structure, with a diameter generally greater than 1 meter and less than 15 meters; and a height generally greater than 1 meter and less than 20 meters. Preferably, in this embodiment, the lower mounting structure 51 and the upper mounting structure 52 use flanges. Of course, flanges are only a preferred embodiment in this case; other structural forms in existing engineering installation fields can also be used.

[0048] In this embodiment, ten identical radial trusses 2 extend along the radial direction of the central tube 5. One end of each radial truss 2 is fixedly connected to the central tube 5. The ten identical radial trusses 2 are evenly distributed around the central tube, meaning that the included angle between two adjacent radial trusses 2 is equal.

[0049] It should be noted that, in this embodiment, ten radial trusses 2 are the preferred implementation. Typically, at least four radial trusses 2 need to be provided.

[0050] In this embodiment, the circumferential truss 1 is installed between two adjacent radial trusses 2. Multiple circumferential trusses 1 connected on one side form a regular polygon. Along the radial direction of the central tube 5, multiple regular polygons with different inscribed circles formed by the circumferential trusses 1 are arranged. Furthermore, the circumferential trusses 1 between two adjacent radial trusses 2 are parallel to each other. In this embodiment, the diameter of the inscribed circle of the regular polygon is generally 5 meters to 300 meters.

[0051] In this embodiment, a plurality of the upper cables 41 are disposed directly above the radial truss 2. Preferably, the upper cables 41 correspond one-to-one with the radial truss 2. One end of the upper cable 41 is fixed to the central tube 5, and the other end is fixed to the radial truss 2.

[0052] It should be noted that when the diameter of the inscribed circle formed by the outermost circumferential truss 1 is large, multiple upper cables 41 can also be installed above each radial truss 2.

[0053] In this embodiment, the lower cable 42 has multiple strands and is located below the radial truss 2 and the circumferential truss 1. The lower cable 42 includes radial cables 421 corresponding to the radial truss 2 and multiple sets of intersecting diagonal cables 422. One end of the radial cable 421 is fixed to the central tube 5, and the other end is fixed to the radial truss 2; one end of the diagonal cable 422 is fixed to the central tube 5, and the other end can be fixed to either the radial truss 2 or the circumferential truss 1.

[0054] It should be noted that, since the photovoltaic panel 3 needs to be installed on the upper part of the photovoltaic support structure, the upper cable 41 is positioned directly above the radial truss 2 to avoid shading the photovoltaic panel. However, the lower cable 42 has no possibility of shading the photovoltaic panel, so it can be fixed to either the radial truss 2 or the circumferential truss 1, allowing for more flexible arrangement depending on structural strength requirements. In particular, the intersecting diagonal cables 422 can improve the torsional strength of the photovoltaic support structure, thereby enhancing the overall structural stability.

[0055] In this embodiment, the upper cable 41 and the lower cable 42 share part of the force acting on the radial truss 2, thereby improving the overall structural strength of the photovoltaic support.

[0056] Example 2

[0057] This embodiment features a monopile large-area truss-type regular polygon photovoltaic support, such as... Figure 5 As shown, the difference from Embodiment 1 is that in Embodiment 1, both the circumferential truss 1 and the radial truss 2 are planar trusses. In this embodiment, however, the circumferential truss 1 is a planar truss, and the projection plane 21 of the radial truss 2 is triangular, making it a spatial truss.

[0058] It should be noted that both planar trusses and spatial trusses are existing technologies, and their specific structures will not be described in detail in this embodiment. In this embodiment, a spatial truss with a triangular projection plane is the preferred implementation. Of course, other spatial truss structures in the prior art, such as spatial trusses with a rectangular projection plane, can also be used.

[0059] Preferably, in this embodiment, the circumferential truss 1 can also be a space truss.

[0060] As is well known, the structural strength of a space truss is greater than that of a planar truss. Therefore, in this embodiment, the monopile large-area truss-type regular polygon photovoltaic support typically uses a space truss when the area is large and a planar truss when the area is small. For example, when the diameter of the inscribed circle of the regular polygon formed by the outermost circumferential trusses is less than 60 meters, the radial truss 2 and the circumferential truss 1 are generally planar trusses, but space trusses can also be used. When the diameter of the inscribed circle of the regular polygon formed by the outermost circumferential trusses is greater than 80 meters, the radial truss 2 and the circumferential truss 1 are generally space trusses, but planar trusses can also be used if the structural strength meets the application requirements. When the diameter of the inscribed circle of the regular polygon formed by the outermost circumferential trusses is between 60 meters and 80 meters, the radial truss and the circumferential truss can be either planar trusses or space trusses.

[0061] Example 3

[0062] One example of this embodiment is a photovoltaic system, such as... Figure 6 As shown, the system includes a support pile 6 and a single-pile, large-area truss-type regular polygon photovoltaic support installed on the upper end of the support pile 6 via a lower installation structure 51. The support pile 6 is a single pile, fixedly installed within the target construction area, such as in oceans, hills, or valleys.

[0063] In this embodiment, the support pile 6 is a single pile, which not only saves costs but also reduces the use of land, and can be flexibly applied in places where construction and piling are difficult, such as oceans, hills, and river valleys.

[0064] In this embodiment, a plurality of photovoltaic panels 3 are laid flat on the circumferential truss 1. Of course, laying the photovoltaic panels 3 flat on the circumferential truss 1 is the preferred embodiment. Alternatively, a plurality of support frames can be provided on the circumferential truss 1, and the photovoltaic panels 3 can be installed on the support frames. The mounting surface of the support frames is inclined, so that the photovoltaic panels 3 are inclined relative to the upper surface of the circumferential truss 1, thereby improving the efficiency of photovoltaic power generation.

[0065] In the photovoltaic system of this embodiment, after the monopile large-area truss regular polygon photovoltaic bracket is manufactured in the factory, the photovoltaic panels can be installed on the photovoltaic bracket. It can be transported as a whole to the designated area for installation without the need for on-site bracket installation in the construction area. Its construction method is quick and convenient, reducing labor costs.

[0066] Example 4

[0067] One example of this embodiment is a photovoltaic system, such as... Figure 7As shown, the difference from Embodiment 3 is that a wind power generation system is also installed at the upper end of the central pipe 5. This wind power generation system includes a mounting column 71 and a wind turbine 7 located at the top of the mounting column. The lower end of the mounting column 71 is mounted to the upper end of the central pipe 5 via an upper mounting structure 52.

[0068] In this embodiment, photovoltaic (PV) power generation and wind power generation systems are organically combined to achieve multi-energy complementarity. Taking Zhejiang Province as an example, a 5 MW wind turbine is installed on a PV support structure with an inscribed circle of 100 meters at the outermost regular polygon. Due to the wind turbine blocking sunlight, the PV power generation loses approximately 4.8% of its annual power generation. However, since the PV and wind turbines share the same pile foundation and power transmission equipment, approximately 20% of the cost is saved. Furthermore, this PV support structure can be added to existing wind power systems, saving construction costs and achieving multi-energy complementarity.

[0069] In summary, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A monopile large-area truss-type regular polygon photovoltaic support, characterized in that, At least including: A central tube, the lower end of which is provided with a lower mounting structure; A radial truss extends along the radial direction of the central tube, one end of which is fixedly connected to the central tube, and at least four radial trusses with the same structure are evenly distributed around the central tube; A circumferential truss is installed between two adjacent radial trusses. Multiple circumferential trusses connected on one side form a regular polygon. Multiple regular polygons with different sizes of inscribed circles composed of circumferential trusses are arranged along the radial direction of the central tube. The circumferential trusses between two adjacent radial trusses are parallel to each other. The upper cable is provided above the radial truss, with one end of the upper cable fixed to the central tube and the other end fixed to the radial truss. The lower cables are arranged below the radial truss and the circumferential truss, with one end of the lower cable fixed to the central tube and the other end fixed to the radial truss or the circumferential truss.

2. The monopile large-area truss-type regular polygon photovoltaic support according to claim 1, characterized in that, The lower cable includes a radial cable corresponding to the radial truss and multiple sets of intersecting oblique cables. One end of the radial cable is fixed to the central tube and the other end is fixed to the radial truss; one end of the oblique cable is fixed to the central tube and the other end is fixed to the radial truss or the circumferential truss.

3. The monopile large-area truss-type regular polygon photovoltaic support according to claim 1, characterized in that, The radial truss and circumferential truss are either planar trusses or spatial trusses.

4. The monopile large-area truss-type regular polygon photovoltaic support according to claim 3, characterized in that, When the diameter of the inscribed circle of the regular polygon formed by the outermost circumferential trusses is less than 60 meters, the radial and circumferential trusses are planar trusses; when the diameter of the inscribed circle of the regular polygon formed by the outermost circumferential trusses is greater than 80 meters, the radial and circumferential trusses are spatial trusses; when the diameter of the inscribed circle of the regular polygon formed by the outermost circumferential trusses is between 60 meters and 80 meters, the radial and circumferential trusses are planar trusses and / or spatial trusses.

5. The monopile large-area truss-type regular polygon photovoltaic support according to any one of claims 1-4, characterized in that, The upper end of the central tube is provided with an upper mounting structure.

6. The monopile large-area truss-type regular polygon photovoltaic support according to claim 5, characterized in that, The lower mounting structure and / or upper mounting structure is a mounting flange.

7. A photovoltaic system, characterized in that, At least including: Support piles, each of which is fixedly installed; The monopile large-area truss-type regular polygon photovoltaic support according to any one of claims 1-6, wherein the monopile large-area truss-type regular polygon photovoltaic support is installed on the top of the support pile through a lower installation structure; A number of photovoltaic panels are laid flat on the circumferential truss.

8. A photovoltaic system, characterized in that, At least including: Support piles, each of which is fixedly installed; The monopile large-area truss-type regular polygon photovoltaic support according to any one of claims 1-6, wherein the monopile large-area truss-type regular polygon photovoltaic support is installed on the top of the support pile through a lower installation structure; A photovoltaic panel is provided on a circumferential truss with several support frames. The photovoltaic panel is installed on the support frames and is inclined relative to the upper surface of the circumferential truss.

9. A photovoltaic system, characterized in that, At least including: Support piles, each of which is fixedly installed; The monopile large-area truss-type regular polygon photovoltaic support according to claim 5 or 6, wherein the monopile large-area truss-type regular polygon photovoltaic support is installed on the top of the support pile through a lower installation structure; Photovoltaic panels, a plurality of the photovoltaic panels are laid flat on the circumferential truss, or are installed obliquely on the circumferential truss by means of a support frame; A wind power generation system, comprising a mounting column and a wind turbine located at the top of the mounting column, wherein the lower end of the mounting column is mounted to the upper end of the central tube via an upper mounting structure.

Images