Flexible photovoltaic support system

Abstract

The utility model discloses a flexible photovoltaic support system, which belongs to the technical field of photovoltaic supports and comprises a plurality of flexible photovoltaic supports, each flexible photovoltaic support comprises two end supports and a plurality of middle supports located between the two end supports, and the end supports and the middle supports are connected through bearing cables and stabilizing cables. The bearing cables are installed at the upper ends of all the end supports and the upper ends of the middle supports, the stabilizing cables are arranged up and down, and the first rigid frame and the second rigid frame are arranged between the stabilizing cables. A double-layer fish-bellied space cable truss system is formed among the bearing cable, the stabilizing cable, the rigid triangular frame and the rigid cross-shaped frame; the rigid triangular frames in the adjacent supports are connected in a crossed mode through wind-resistant pull rods to form a wind-resistant system, and the rigid triangular frames in the side supports are anchored into the ground through wind-resistant cables. The problems that an existing fixed photovoltaic support is large in pile foundation number, small in pile foundation span and poor in terrain adaptability can be solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to photovoltaic support technical field, concretely relates to a flexible photovoltaic support system. BACKGROUND

[0002] With the development of photovoltaic industry, the voltage of photovoltaic module is higher and higher, and the application range is wider, for example, "agri-photovoltaic" combined with agriculture and "fish-photovoltaic" combined with fishery, so photovoltaic support needs to adapt to different application scenarios and terrain conditions.

[0003] With the maturation of photovoltaic technology and the reduction of electricity price, under the premise of ensuring the quality and power generation of power station, reducing system cost as much as possible has been the direction of efforts of enterprises in the industry, and since 2023, some domestic photovoltaic cell module manufacturers have carried out research and development of 2000V products.

[0004] In existing photovoltaic projects, the fixed photovoltaic support applying 1500V photovoltaic module, considering the stability problem of span, the maximum span is generally 3-5 meters, and the maximum arrangement of single support is about 2x28 modules, and the main disadvantages are: 1, large number of pile foundations, high cost; 2, small pile foundation spacing, compact space under the module, which is not conducive to the development of "agri-photovoltaic" and "fish-photovoltaic" projects; 3, poor terrain adaptability, and the area with large slope or terrain changes cannot be arranged. SUMMARY

[0005] The utility model provides a flexible photovoltaic support system, can obviously reduce the number of pile foundations, increase the pile foundation spacing, and improve the terrain adaptability.

[0006] In order to achieve the above purpose, the utility model discloses a flexible photovoltaic support system, including a plurality of flexible photovoltaic supports, the flexible photovoltaic support includes two end supports and a plurality of middle supports between the two end supports, the end support and the middle support are connected through the bearing cable and the stabilizing cable, the bearing cable is installed on the upper end of all end supports and middle supports, the stabilizing cable is arranged up and down, and the first rigid frame and the second rigid frame are arranged between the stabilizing cables.

[0007] Further, the first rigid frame of adjacent flexible photovoltaic supports is connected through two mutually intersecting wind-resistant pull rods.

[0008] Further, the first rigid frame of adjacent flexible photovoltaic supports is connected through two mutually intersecting wind-resistant pull rods.

[0009] Further, the first rigid frame is a trapezoidal or triangular shape.

[0010] Further, the end support is provided with a rotating structure, the load bearing cable passes through the rotating structure, and the rotating structure provides a tilt angle adjustment range for the load bearing cable.

[0011] Further, the rotating structure provides a tilt angle adjustment range of ±15° for the load bearing cable.

[0012] Further, the rotating structure comprises a strip-shaped groove and a rotating support, the strip-shaped groove is arranged on the end support, the rotating support comprises a rotating shaft and a mounting portion which are fixedly connected, the rotating shaft is rotatably arranged on the end support, the load bearing cable passes through the strip-shaped groove and the rotating support, and the strip-shaped groove limits the position of the load bearing cable in the vertical direction.

[0013] Further, a plurality of end anchor cables are connected to the end support, and the end anchor cables are anchored into the ground.

[0014] Further, the number of the end anchor cables is determined according to the anchoring positions of the load bearing cable and the stabilizing cable.

[0015] Further, the second rigid frame is T-shaped.

[0016] Compared with the prior art, the utility model has at least the following beneficial technical effects:

[0017] The flexible photovoltaic support can accommodate one photovoltaic module string per span, and the end support and the middle support are connected through load bearing cables and stabilizing cables; the first rigid frame and the second rigid frame are arranged between the stabilizing cables; and a double-fish-belly-shaped spatial cable truss system is formed between the load bearing cable, the stabilizing cable, the first rigid frame and the second rigid frame. The first rigid frame and the second rigid frame limit the stabilizing cable, reduce the deflection of the load bearing cable, and further reduce the swing range of the load bearing cable and the photovoltaic module thereon under wind load or rain and snow load, so that the span can be increased, and the problems of the existing fixed photovoltaic support, such as large number of pile foundations, small pile foundation span and poor terrain adaptability, can be solved.

[0018] Further, the first rigid frames in adjacent supports are connected through wind-resistant pull rods to form a horizontal wind-resistant system, the first rigid frame in the side support is anchored into the ground through a wind-resistant cable, and in combination with the double-fish-belly-shaped spatial cable truss system, the lateral deflection of the load bearing cable is further reduced, the influence of wind on the photovoltaic module is reduced, the vibration amplitude and load pressure of the module are reduced, and therefore the high-efficiency operation of the photovoltaic module under severe weather can be maintained.

[0019] Further, the end support is provided with a rotating structure, the rotating structure provides a tilt angle adjustment range of ±15° for the load bearing cable, and the terrain adaptability of the photovoltaic support system can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of the multiple-row module of the utility model;

[0021] Figure 2 It is the multiple row structure schematic view of the utility model.

[0022] Figure 3 It is the single row structure schematic view of the utility model.

[0023] Figure 4 It is the structure schematic view of the first rigid frame through the wind resistance pull rod cross connection to form the horizontal wind resistance system in the utility model.

[0024] Figure 5 It is the structure schematic view of the end support in the utility model.

[0025] Figure 6 It is the structure schematic view of the top of the end support, rotating support in the utility model. Figure 1

[0026] Figure 7 It is the structure schematic view of the top of the end support, rotating support in the utility model. Figure 2

[0027] In the drawing, 1, end support;2, middle support;3, bearing cable;4, stabilizing cable;5, first rigid frame;6, second rigid frame;7, wind resistance pull rod;8, wind resistance cable;9, end anchor cable;10, rotating support. DETAILED DESCRIPTION

[0028] The utility model will be described in detail below in combination with the drawings and specific embodiments.

[0029] In order to make the personnel in the technical field better understand the technical scheme in the utility model, the technical scheme in the embodiment of the utility model will be described clearly and completely below in combination with the drawings in the embodiment of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor should belong to the scope of the protection of the utility model.

[0030] ​​It is to be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like as used herein refer to the orientation or position of an item as shown in the drawings and are used for convenience to describe the present application and its attachments only and are not a limitation as to the scope of the application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety.

[0032] In order to adapt to the new 2000V photovoltaic module product, and overcome the shortcomings of the existing fixed photovoltaic support, the utility model provides a kind of large-span flexible photovoltaic support for 2000V system, utilize load-bearing cable, stabilizing cable and rigid frame to form space cable truss, simultaneously configure wind resistance system, can significantly reduce the number of pile foundation, increase pile foundation spacing, improve topographic adaptability, and can adapt to the functional characteristics of 2000V large group.

[0033] With reference to Figures 1 to 3 A kind of large-span flexible photovoltaic support system for 2000V system, including several side-by-side arrangement flexible photovoltaic support, flexible photovoltaic support main load-bearing structure and transverse wind resistance system, main load-bearing structure and transverse wind resistance system are perpendicular state.

[0034] Main load-bearing structure includes two end supports 1 and several middle supports 2 between two end supports 1, end support 1 and middle support 2 are connected by two load-bearing cables 3 and two stabilizing cables 4;Two load-bearing cables 3 are parallel to each other, are tensioned on all end supports 1 and middle supports 2 upper end by end pre-stress, load-bearing cable 3 is used for installing 2000V photovoltaic module;Two stabilizing cables 4 are arranged in upper and lower, and first rigid frame 5 and second rigid frame 6 are arranged between them, are tensioned below load-bearing cable 3 by end pre-stress, first rigid frame 5 and second rigid frame 6 upper end are connected with load-bearing cable 3.

[0035] With reference to Figure 4The transverse wind resistance system comprises a first rigid frame 5 and a wind resistance pull rod 7 in adjacent supports, the adjacent first rigid frames 5 are connected by two wind resistance pull rods 7, the two wind resistance pull rods 7 are crossed with each other, and the two wind resistance pull rods 7 are connected with the first rigid frame 5 by bolts to form a transverse wind resistance system, and the first rigid frame 5 in the side support is anchored into the ground by the wind resistance cable 8.

[0036] With reference to Figure 3 The double-layered fish abdomen type space cable truss system is formed between the load bearing cable 3, the stabilizing cable 4, the first rigid frame 5 and the second rigid frame 6. The specific structure is as follows: the first stabilizing cable is fixed at the top of the two end supports 1 by applying prestress at both ends, passes through the upper part of the middle support 2 in the middle, and the end support 1 and the middle support 2 divide the support into several spans, the length of the first stabilizing cable is greater than the length of each span, and the first stabilizing cable is drooping and arc-shaped in each span; the second stabilizing cable is fixed in the middle of the end support 1 by applying prestress at both ends, passes through the middle of the middle support 2 in the middle, and the length of the second stabilizing cable is greater than the length of each span, and the second stabilizing cable is upward and arc-shaped; in each span, the first rigid frame 5 and the second rigid frame 6 are arranged at intervals, the first rigid frame 5 and the second rigid frame 6 lift the two stabilizing cables, so that the two stabilizing cables are in the shape of upper and lower parabolas respectively, and the first stabilizing cable and the second stabilizing cable are in a double-layered fish abdomen type structure. The first rigid frame 5 and the second rigid frame 6 are connected with the stabilizing cable 4 by a lock.

[0037] The first rigid frame 5 is triangular or trapezoidal; and the second rigid frame 6 is approximately T-shaped.

[0038] With reference to Figure 5 The end support 1 is provided with four end anchor cables 9 anchored into the ground according to the anchoring positions of the load bearing cable 3 and the stabilizing cable 4.

[0039] The end support 1 and the middle support 2 are fixed to the ground by pile foundations at the lower ends.

[0040] With reference to Figure 6 and Figure 7 The end support 1 comprises two mutually parallel columns, the top of the two columns is fixedly connected by a cross beam, the column comprises two side plates, the two side plates are fixedly connected by a web plate, the two side plates are provided with U-shaped grooves of the same size at the same height in the front direction, and a strip-shaped groove is formed in the web plate. The front direction is the direction towards the middle support 2.

[0041] The rotating support 10 comprises a rotating shaft and a mounting portion fixedly connected, the rotating shaft and the mounting portion are perpendicular to each other, the rotating support 10 is provided with a through hole penetrating the rotating shaft and the mounting portion, the rotating shaft is mounted in the two U-shaped grooves and can rotate freely in the U-shaped grooves, the bearing cable 3 passes through the strip-shaped groove and the through hole and is connected with the rotating support 10 through an anchor, the position of the bearing cable 3 in the vertical direction is limited through the strip-shaped groove, and the combination of the rotating support 10 and the strip-shaped groove provides a tilt angle adjustment interval of ±15° for the bearing cable 3.

[0042] By adopting the above structure, the span can reach about 40 meters.

[0043] In the formula, n is an integer greater than or equal to 1.

[0044] The bearing cable 3 and the stabilizing cable 4 adopt a pre-stressed galvanized steel strand.

[0045] The number of the first rigid frame 5 and the second rigid frame 6 can be adjusted according to actual conditions, and the first rigid frame 5, the second rigid frame 6 and the wind-resistant pull rod 8 are made of angle steel and square steel pipe or round steel pipe.

[0046] The rotating shaft and the mounting portion of the rotating support 10 are made of solid round steel profiles.

[0047] When the new 2000V photovoltaic module product is used, 36 modules are used for each photovoltaic module string, and each span of the support can accommodate one 2000V photovoltaic module string; the end support 1 and the middle support 2 are connected through the bearing cable 3 and the stabilizing cable 4 respectively; the bearing cable 3 is provided with a 2000V photovoltaic module; the first rigid frame 5 and the second rigid frame 6 are arranged between the stabilizing cables 4; the bearing cable 3, the stabilizing cable 4, the first rigid frame 5 and the second rigid frame 6 form a double-layer fish-belly type space cable truss system; the first rigid frame 5 in adjacent supports is connected through the wind-resistant pull rod 7 to form a transverse wind-resistant system, and the first rigid frame 5 in the side support is anchored into the ground through the wind-resistant cable 8. In this way, the problems of a large number of fixed photovoltaic support pile foundations, small pile foundation span and poor terrain adaptability can be solved.

[0048] It can be understood that the embodiment is a large-span flexible photovoltaic support for a 2000V system, and the form is not limited to the embodiment, and the actual capacity and actual demand of the photovoltaic project can be designed and optimized. For ordinary skilled persons in the art, various modifications and improvements can be made without departing from the spirit and essence of the present application, and these modifications and improvements are also regarded as the protection scope of the present application.

[0049] The term "consisting of" is intended to cover a combination of the specified elements, ingredients, components, or steps only, to the exclusion of others. Use of the term "comprising" or "including" to describe combinations of elements, ingredients, components, or steps herein also is taken to mean that the embodiments so described are inclusive or open-ended and not exclusive or closed. That is, the term "comprising" or "including" as used in this application is used to mean one or more of the stated elements, ingredients, components, or steps are present.

[0050] Plural elements, ingredients, components, or steps can be provided by a single integrated element, ingredient, component, or step. Alternatively, a single integrated element, ingredient, component, or step might be divided into separate plural elements, ingredients, components, or steps. The disclosure of "a" or "one" to describe an element, ingredient, component, or step is not intended to foreclose additional elements, ingredients, components, or steps.

[0051] It is understood that the above description is intended to be illustrative and not restrictive. Many embodiments and applications other than the examples provided would be apparent to those of skill in the art upon reading the above description. The scope of the application should be determined, not with reference to the above description, but should be given to the full scope of the disclosure and equivalents thereof. All articles and references, including patent applications and publications, are incorporated by reference for the purpose of the present disclosure. Any incorporation by reference of any article, report, patent, or patent application shall not be construed as an admission that such article, report, patent, or patent application is prior art. The disclosure of any article, report, patent, or patent application can only be considered accurate as of the filing date of this patent application, and any citation of such articles, reports, patents, or patent applications is only intended to add information to the stated description and drawings of the present application. In the case of inconsistencies, the disclosure of the present patent application prevails.

Claims

1. A flexible photovoltaic support system, characterized in that, The system includes several flexible photovoltaic supports, each of which includes two end supports (1) and several middle supports (2) located between the two end supports (1). The end supports (1) and the middle supports (2) are connected by load-bearing cables (3) and stabilizing cables (4). The load-bearing cables (3) are installed on the upper ends of all the end supports (1) and the middle supports (2). The stabilizing cables (4) are arranged vertically, and a first rigid frame (5) and a second rigid frame (6) are provided between the stabilizing cables (4).

2. The flexible photovoltaic support system according to claim 1, characterized in that, The first rigid frame (5) of the adjacent flexible photovoltaic support is connected by a wind-resistant tie rod (7), and the first rigid frame (5) in the support located at the edge is anchored into the ground by a wind-resistant cable (8).

3. A flexible photovoltaic support system according to claim 2, characterized in that, The first rigid frame (5) of the adjacent flexible photovoltaic support is connected by two intersecting wind-resistant tie rods (7).

4. A flexible photovoltaic support system according to claim 1 or 2, characterized in that, The first rigid frame (5) is trapezoidal or triangular.

5. A flexible photovoltaic support system according to claim 1, characterized in that, The end bracket (1) is provided with a rotating structure, and the load-bearing cable (3) passes through the rotating structure. The rotating structure provides an angle adjustment range for the load-bearing cable (3).

6. A flexible photovoltaic support system according to claim 5, characterized in that, The rotating structure provides the load-bearing cable (3) with an inclination adjustment range of ±15°.

7. A flexible photovoltaic support system according to claim 5, characterized in that, The rotating structure includes a strip groove and a rotating support (10). The strip groove is opened on the end bracket (1). The rotating support (10) includes a fixedly connected rotating shaft and a mounting part. The rotating shaft is rotatably mounted on the end bracket (1). The load-bearing cable (3) passes through the strip groove and the rotating support (10). The position of the load-bearing cable (3) in the vertical direction is restricted by the strip groove.

8. A flexible photovoltaic support system according to claim 1, characterized in that, Several end anchor cables (9) are connected to the end support (1), and the lower end of the end anchor cables (9) is anchored into the ground.

9. A flexible photovoltaic support system according to claim 8, characterized in that, The number of end anchor cables (9) is determined according to the anchoring positions of the load-bearing cable (3) and the stabilizing cable (4).

10. A flexible photovoltaic support system according to claim 1, characterized in that, The second rigid frame (6) is T-shaped.

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