Flexible photovoltaic support suitable for HJT vertical installation photovoltaic assembly

Abstract

The utility model discloses a flexible photovoltaic support suitable for an HJT vertical installation photovoltaic assembly, and belongs to the technical field of photovoltaic power generation. The inclined photovoltaic assembly comprises first supporting columns at the two ends and a first steel strand tied between the two first supporting columns, and an inclined photovoltaic panel is installed on the first steel strand. The two columns of vertical photovoltaic modules are arranged on the two sides of the multiple columns of inclined photovoltaic modules respectively and comprise a column of second supporting columns and second steel strands tied to the column of second supporting columns, and vertical photovoltaic panels are installed on the second steel strands; a third steel strand is tied between every two opposite second supporting columns in the two rows of second supporting columns, and the third steel strands are perpendicular to the first steel strands and have an intersection with the first steel strands. According to the utility model, the inclined photovoltaic assemblies and the vertical photovoltaic assemblies are flexibly combined, and the vertical photovoltaic assemblies form a power generation wind barrier, so that the wind load borne by the inclined photovoltaic assemblies of the internal array is greatly reduced, and the overall stability and power generation efficiency of the photovoltaic assemblies are improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation technology, specifically a flexible photovoltaic bracket suitable for vertically installing photovoltaic modules using HJT. Background Technology

[0002] Traditional flexible photovoltaic (PV) mounting systems are typically installed at the optimal tilt angle for local power generation. Flexible PV systems offer advantages such as large spans, high clearance, and long spacing, making them popular in applications such as mountainous areas, solar-fishery hybrid systems, and photovoltaic desertification control. However, flexible PV systems have low stiffness and are prone to wind-induced vibration under wind loads, which is a key challenge in practical applications. In a PV array, the outer PV modules experience a larger wind load than the inner PV modules, primarily due to the wind-blocking effect of the outer modules. Since PV modules are generally arranged at the optimal tilt angle, their wind-blocking effect on the inner modules is limited.

[0003] In traditional flexible photovoltaic (PV) arrays, the southernmost and northernmost PV support structures are typically most affected by wind forces and experience the most severe operating conditions, making them prone to damage. According to wind tunnel test results, the three outermost rows of support structures (north and south) are most affected by wind. Figure 7 As shown, in the flexible support array, the tilted support causes strong vortex-induced vibration on the back of the photovoltaic panel under the action of wind, which causes the photovoltaic panel to vibrate and the support to become unstable. This situation will not subside significantly until 3 to 4 consecutive rows, which seriously affects the stability of the photovoltaic support and the power generation efficiency of the photovoltaic panel. Utility Model Content

[0004] To address the aforementioned technical shortcomings, this utility model provides a flexible photovoltaic support for vertically mounted HJT photovoltaic modules.

[0005] With the innovation of photovoltaic panel technology, the new HJT photovoltaic module, which features bifacial power generation and vertical installation, has been applied in the field of fixed photovoltaic support systems. This solution flexibly combines tilted and vertical photovoltaic modules, using the vertical photovoltaic modules to form a wind barrier for power generation. This significantly reduces the wind load on the tilted photovoltaic modules in the internal array, thereby improving the overall stability and power generation efficiency of the photovoltaic module.

[0006] This utility model adopts the following technical solution: a flexible photovoltaic bracket suitable for vertically installed HJT photovoltaic modules, comprising:

[0007] A series of parallel inclined photovoltaic modules, each inclined photovoltaic module including a first pillar at both ends and a first steel strand tied between the two first pillars, with inclined photovoltaic panels installed on the first steel strand;

[0008] Two rows of vertical photovoltaic modules are placed on either side of multiple rows of tilted photovoltaic modules and are parallel to the tilted photovoltaic modules;

[0009] The vertical photovoltaic module includes a row of second pillars and a second steel strand tied to the row of second pillars. A vertical photovoltaic panel is installed on the second steel strand, and the vertical photovoltaic panel and the inclined photovoltaic panel are opposite each other on the horizontal plane.

[0010] In this configuration, a third steel strand is strung between each of the two opposing second pillars in the two columns. The third steel strand is perpendicular to the first steel strand and has a junction. The third steel strand and the first steel strand are fixedly connected at the junction by a connector.

[0011] Preferably, three first steel strands are connected between the first supports at both ends;

[0012] Two third steel strands are connected between each of the two opposing second pillars in the two columns of the second pillars;

[0013] The connector is fixedly connected to three of the first steel strands and two of the third steel strands at the intersection.

[0014] Preferably, the connector is a triangular pyramid structure.

[0015] Preferably, the connector is a triangular pyramid structure composed of a first rod, a second rod, a third rod, a fourth rod, a fifth rod, and a sixth rod, which are fixed end to end.

[0016] The first end of the first rod is fixed to the first end of the third rod and the first end of the sixth rod;

[0017] The second end of the first rod is fixed to the first end of the second rod and the first end of the fourth rod;

[0018] The first end of the fifth rod is fixed to the second end of the fourth rod and the second end of the sixth rod;

[0019] The second end of the fifth rod is fixed to the second end of the second rod and the second end of the third rod;

[0020] At the intersection, the three first steel strands are arranged in an upper, middle and lower position, and the two third steel strands are arranged in an upper and lower position.

[0021] The first steel strand on the upper side is attached to and fixedly connected to the first pole;

[0022] The first steel strand in the middle and the third steel strand on the upper side are fixedly connected to the intersection of the second, third and fifth poles;

[0023] The first and third steel strands on the lower side are fixedly connected to the intersections of the fourth, fifth, and sixth poles.

[0024] Preferably, the two ends of the tilted photovoltaic panel are fixed to the upper first steel strand and the middle first steel strand, respectively.

[0025] Preferably, the upper ends of the first support column at each end are fixedly connected as a whole by a crossbeam.

[0026] Preferably, one end of the first steel strand passes through the crossbeam on the corresponding side and is connected to a first support rod, and the first steel strand has a certain preload.

[0027] Preferably, an auxiliary beam parallel to the crossbeam is provided at the middle position of the tilted photovoltaic module, and the first steel strand is supported on the auxiliary beam in the middle.

[0028] Preferably, each column of the second support is provided with a second strut at one end, and one end of the second steel strand passes through the second support on the corresponding side and is connected to the second strut on the corresponding side. The second steel strand has a certain preload.

[0029] Preferably, a third support rod is provided on one side of each second support rod, and one end of the third steel strand passes through the second support rod on the corresponding side and is connected to the third support rod on the corresponding side. The third steel strand has a certain preload.

[0030] The beneficial effects of this utility model are as follows:

[0031] The second pillars on both sides are used to install vertical photovoltaic panels and also serve as fixing points for the third steel strand. The third steel strand combines the support structure of the tilted photovoltaic module and the vertical photovoltaic module to form an integrated wind-resistant stabilizing cable, which improves the stability of the tilted photovoltaic module in the middle.

[0032] Meanwhile, the vertically installed photovoltaic panels are arranged on the outside of the tilted photovoltaic modules, which has a good wind-blocking effect and solves the airflow vortex vibration problem of the tilted photovoltaic modules.

[0033] Conventional fixed windbreaks, relying on the strength of the support structure itself, are difficult to withstand strong winds. The vertical photovoltaic panels in this solution use a flexible support structure, which has all the advantages of flexible photovoltaic supports, greatly improving the ability to absorb wind load vibrations. They can remain stable even under large wind loads and provide an effective windbreak effect.

[0034] A triangular pyramid-shaped connector is installed at the intersection of the first and third steel strands, which effectively connects the three first steel strands and the two third steel strands. While maintaining the installation angle of the tilted photovoltaic panel, it improves the connection strength at the intersection point, ensuring the stability of the entire flexible photovoltaic support and the power generation efficiency of the photovoltaic panel. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a perspective view of a flexible photovoltaic bracket for vertically mounting photovoltaic modules using HJT according to this utility model.

[0037] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0038] Figure 3 for Figure 2 Enlarged view of point B in the middle.

[0039] Figure 4 This is a top view of a flexible photovoltaic support for vertically mounting photovoltaic modules using HJT according to this utility model.

[0040] Figure 5 This is a left view of a flexible photovoltaic bracket for vertically mounting photovoltaic modules using HJT according to this utility model.

[0041] Figure 6 This is a schematic diagram simulating the effect of wind on this utility model.

[0042] Figure 7 This is a simulation diagram of a flexible photovoltaic support structure under wind load in the prior art.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1. Tilted photovoltaic module; 11. First support column; 12. First steel strand; 13. Tilted photovoltaic panel; 14. Crossbeam; 15. First strut;

[0045] 2. Vertical photovoltaic module; 21. Second support column; 22. Second steel strand; 23. Vertical photovoltaic panel; 24. Second strut;

[0046] 3. Connecting parts; 301. First rod; 302. Second rod; 303. Third rod; 304. Fourth rod; 305. Fifth rod; 306. Sixth rod; 31. Third steel strand; 32. Third support rod. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0048] Example 1:

[0049] like Figures 1 to 5 As shown, this utility model provides a flexible photovoltaic support for HJT vertically installed photovoltaic modules, including multiple rows of parallel inclined photovoltaic modules 1 and two rows of vertical photovoltaic modules 2 placed on both sides of the inclined photovoltaic modules 1. The vertical photovoltaic modules 2 are used as windbreak structures for the inclined photovoltaic modules 1 and also as longitudinal tie points for the inclined photovoltaic modules 1, thereby improving the overall strength and wind resistance of the inclined photovoltaic modules 1.

[0050] Each row of tilted photovoltaic modules 1 includes first pillars 11 at both ends and first steel strands 12 connected between the two first pillars 11. The tilted photovoltaic panels 13 are installed at an angle on the first steel strands 12. The first pillars 11 at each end are arranged horizontally. Each row of vertical photovoltaic modules 2 includes a row of second pillars 21, and the two rows of second pillars 21 and the two rows of first pillars 11 are arranged in a rectangle. A third steel strand 31 is connected to each row of second pillars 21, and the vertical photovoltaic panels 23 are installed vertically on the third steel strands 31. The vertical photovoltaic panels 23 are opposite to the tilted photovoltaic panels 13 on the horizontal plane, and the vertical photovoltaic panels 23 are used to block the wind blowing towards the tilted photovoltaic panels 13 from both sides.

[0051] In each of the two rows of second pillars 21, a third steel strand 31 is strung between every two opposing second pillars 21. The third steel strand 31 is perpendicular to the first steel strand 12 and has a junction. A connector 3 is installed at the junction, connecting the third steel strand 31 and the first steel strand 12 together. The connector 3 and the third steel strand 31 use the vertical photovoltaic modules 2 on both sides as fulcrums to flexibly combine the tilted photovoltaic modules and the vertical photovoltaic modules, improving the stability of the tilted photovoltaic panel 13 in the middle. At the same time, the outer vertical photovoltaic panel 23 forms a flexible wind barrier for power generation, which has a good wind-blocking effect and avoids the airflow vortex vibration problem of the inner tilted photovoltaic panel 13.

[0052] Example 2:

[0053] Based on the above embodiment one, combined with Figures 1 to 3As shown, this embodiment provides a specific connection structure for the connector 3 and the junction. The connector 3 is a triangular pyramid structure, including a first rod 301, a second rod 302, a third rod 303, a fourth rod 304, a fifth rod 305, and a sixth rod 306. Specifically, the first end of the first rod 301 is fixed to the first end of the third rod 303 and the first end of the sixth rod 306; the second end of the first rod 301 is fixed to the first end of the second rod 302 and the first end of the fourth rod 304; the first end of the fifth rod 305 is fixed to the second end of the fourth rod 304 and the second end of the sixth rod 306; and the second end of the fifth rod 305 is fixed to the second end of the second rod 302 and the second end of the third rod 303.

[0054] The junction has three first steel strands 12 and two third steel strands 31. The three first steel strands 12 are arranged in an upper, middle, and lower configuration, while the two third steel strands 31 are arranged in an upper and lower configuration. For example... Figure 3 As shown, the upper first steel strand 12 is attached to and fixedly connected to the first pole 301. The middle first steel strand 12 and the upper third steel strand 31 are both fixed to the intersection of the second pole 302, the third pole 303, and the fifth pole 305. The upper first steel strand 12 and the middle first steel strand 12 have a certain height difference, which is used for tilting the photovoltaic panel 13 to ensure the illumination angle. The lower first steel strand 12 and the lower third steel strand 31 are both fixed to the intersection of the fourth pole 304, the fifth pole 305, and the sixth pole 306. The triangular pyramid stably connects the three first steel strands and the two third steel strands, so that all the tilted photovoltaic modules 1 and the vertical photovoltaic modules 2 are intertwined. While maintaining the installation angle of the tilted photovoltaic panel 13, it effectively improves the connection strength of the entire flexible photovoltaic support.

[0055] Example 3:

[0056] Based on the above-described embodiment two, combined with Figures 1 to 5 As shown, the upper ends of the first support column 11 at each end are fixedly connected to each other by a crossbeam 14. A first strut 15 is provided on the outer side of the first support column 11. The first strut 15 and the first support column 11 are fixed to the foundation. One end of the first steel strand 12 passes through the crossbeam 14 and is fixedly connected to the first strut 15. The first steel strand 12 is loaded with a certain preload. For large-span tilted photovoltaic modules 1, one or more auxiliary beams are set in the middle. The auxiliary beams and the crossbeam 14 adopt the same support structure. The first steel strand 12 is supported on the auxiliary beam in the middle to prevent the first steel strand 12 from sagging too much and improve the overall stability.

[0057] Each column of second pillars 21 has a second support rod 24 at one end, which is fixed to the foundation. Two second steel strands 22 pass through the second pillars 21 and are fixed to the second support rods 24, with a certain preload applied to the second steel strands 22. When the span of the vertical photovoltaic module 2 is large, a third support rod 32 is added to one side of each second pillar 21, which is fixed to the foundation. The end of the third steel strand 31 passes through the second pillar 21 and is fixed to the third support rod 32, with a certain preload applied to the third steel strand 31. In this embodiment, the second pillars 21 and the second steel strands 22 also constitute a flexible support, and the vertical photovoltaic panel 23 is vertically fixed to the two second steel strands 22. The vertical photovoltaic panel 23 adopts a flexible support structure and is interwoven with the internal inclined photovoltaic module 1 through the third steel strands 31, which greatly improves the ability to absorb wind load vibrations and maintains stability under large wind loads, providing an effective windbreak effect.

[0058] In this application, the vertical photovoltaic module 2 is supported by a flexible photovoltaic bracket to form a wind barrier for power generation. The wind barrier supported by the flexible bracket exhibits minimum energy bending deformation within the load plane under strong winds, thus remaining stable and preventing adverse wind-induced torsional vibrations under strong winds. Figure 6 As shown, in the simulation test, the front row of vertical photovoltaic panels caused a significant shading effect, which greatly improved the stability of the rear tilted photovoltaic panels and ensured the power generation efficiency of the tilted photovoltaic panels.

[0059] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A flexible photovoltaic support structure suitable for vertically mounted HJT photovoltaic modules, characterized in that, include: A series of parallel inclined photovoltaic modules (1) are arranged. The inclined photovoltaic module (1) includes a first pillar (11) at both ends and a first steel strand (12) tied between the two first pillars (11). Inclined photovoltaic panels (13) are installed on the first steel strand (12). Two vertical photovoltaic modules (2) are placed on both sides of the multiple rows of tilted photovoltaic modules (1) and are parallel to the tilted photovoltaic modules (1); The vertical photovoltaic module (2) includes a row of second pillars (21) and a second steel strand (22) tied to the row of second pillars (21). A vertical photovoltaic panel (23) is installed on the second steel strand (22). The vertical photovoltaic panel (23) is opposite to the inclined photovoltaic panel (13) on the horizontal plane. Among them, a third steel strand (31) is tied between two opposing second pillars (21) in the two columns of the second pillars (21). The third steel strand (31) is perpendicular to the first steel strand (12) and has a junction. The third steel strand (31) and the first steel strand (12) are fixedly connected at the junction by a connector (3).

2. The flexible photovoltaic support for HJT vertically mounted photovoltaic modules according to claim 1, characterized in that: Three first steel strands (12) are tied between the first pillars (11) at both ends. Two third steel strands (31) are tied between each of the two opposing second pillars (21) in the two columns of the second pillars (21). The connector (3) is fixedly connected to three of the first steel strands (12) and two of the third steel strands (31) at the intersection.

3. A flexible photovoltaic support for vertically mounted HJT photovoltaic modules according to claim 2, characterized in that: The connector (3) is a triangular pyramid structure.

4. A flexible photovoltaic support for vertically mounted HJT photovoltaic modules according to claim 3, characterized in that: The connector (3) is a triangular pyramid structure consisting of a first rod (301), a second rod (302), a third rod (303), a fourth rod (304), a fifth rod (305), and a sixth rod (306) fixed end to end; The first end of the first rod (301) is fixed to the first end of the third rod (303) and the first end of the sixth rod (306); The second end of the first rod (301) is fixed to the first end of the second rod (302) and the first end of the fourth rod (304); The first end of the fifth rod (305) is fixed to the second end of the fourth rod (304) and the second end of the sixth rod (306); The second end of the fifth rod (305) is fixed to the second end of the second rod (302) and the second end of the third rod (303); At the intersection, the three first steel strands (12) are arranged in an upper, middle and lower position, and the two third steel strands (31) are arranged in an upper and lower position; The first steel strand (12) on the upper side is attached to and fixedly connected to the first rod (301); The first steel strand (12) in the middle, the third steel strand (31) on the upper side, and the intersection of the second rod (302), the third rod (303), and the fifth rod (305) are fixedly connected; The first steel strand (12) on the lower side, the third steel strand (31) on the lower side, and the intersection of the fourth rod (304), the fifth rod (305), and the sixth rod (306) are fixedly connected.

5. A flexible photovoltaic support for vertically mounted HJT photovoltaic modules according to claim 4, characterized in that: The two ends of the tilted photovoltaic panel (13) are respectively fixed to the upper first steel strand (12) and the middle first steel strand (12).

6. A flexible photovoltaic support for vertically mounted HJT photovoltaic modules according to claim 1, characterized in that: The upper ends of the first support column (11) at each end are fixedly connected as one unit by a crossbeam (14).

7. A flexible photovoltaic support for vertically mounted HJT photovoltaic modules according to claim 6, characterized in that: One end of the first steel strand (12) passes through the crossbeam (14) on the corresponding side and is connected to the first support rod (15). The first steel strand (12) has a certain preload.

8. A flexible photovoltaic support for HJT vertically mounted photovoltaic modules according to claim 6, characterized in that: An auxiliary beam parallel to the crossbeam (14) is provided at the middle position of the tilted photovoltaic module (1), and the first steel strand (12) is supported on the auxiliary beam in the middle.

9. A flexible photovoltaic support for vertically mounted HJT photovoltaic modules according to claim 1, characterized in that: Each column of the second support (21) is provided with a second support rod (24) at one end. One end of the second steel strand (22) passes through the second support (21) on the corresponding side and is connected to the second support rod (24) on the corresponding side. The second steel strand (22) has a certain preload.

10. A flexible photovoltaic support for vertically mounted HJT photovoltaic modules according to claim 1, characterized in that: A third strut (32) is provided on one side of each second support (21). One end of the third steel strand (31) passes through the second support (21) on the corresponding side and is connected to the third strut (32) on the corresponding side. The third steel strand (31) has a certain preload.

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