Overwater flexible photovoltaic support and photovoltaic system thereof

Abstract

The utility model discloses an overwater flexible photovoltaic support and a photovoltaic system thereof, the overwater flexible photovoltaic support comprises a stand column group, a cross beam group, a cable assembly and a first balancing weight assembly, the stand column group comprises at least two stand columns arranged at intervals, and the stand columns comprise first stand columns floating on the water surface. The cross beam group comprises cross beams correspondingly arranged at the top ends of the stand columns; the cable assembly comprises a bearing cable arranged on the cross beam and is used for bearing the photovoltaic assembly. The first balancing weight assembly comprises a first inhaul cable and a first balancing weight, one end of the first inhaul cable is anchored to the water bottom, the other end of the first inhaul cable is connected with the first balancing weight, and the first balancing weight assembly is arranged on the first stand column and provides downward acting force. When stormy waves come, the first stand column can move up and down along with fluctuation of the stormy waves, when the first stand column tends to move upwards, downward pulling force provided by the first balancing weight can reduce the upward displacement of the stand column so as to cope with stormy wave impact, the whole system tends to be stable, and then property loss caused by the influence of typhoon and the like is reduced.

Description

Technical Field

[0001] This application relates to the field of flexible support technology, and more particularly to a flexible photovoltaic support for water and its photovoltaic system. Background Technology

[0002] Flexible photovoltaic (PV) support systems feature large spans and high clearance, achieving spans of 10-30 meters. They require only a foundation at a suitable location and the tensioning of prestressed steel strands or wire ropes, enabling more efficient use of space and increased installed capacity. The structural characteristics of flexible PV systems allow for flexible deployment in complex marine, river, or lake environments, adapting to different terrains and water depths, thereby maximizing the use of space resources in these environments. However, floating flexible PV systems are prone to drifting with the current, are affected by strong winds, and are susceptible to capsizing in large waves, exhibiting poor stability and potentially causing significant property damage.

[0003] Therefore, how to improve the technical defects existing in the prior art has always been a problem that ordinary people skilled in the art need to solve. Utility Model Content

[0004] The purpose of this application is to provide a flexible photovoltaic support structure and photovoltaic system for water, which can withstand the impact of large waves and wind in strong winds, has high stability, and can reduce property damage caused by typhoons and other factors.

[0005] The technical solution provided by this utility model is as follows:

[0006] A flexible photovoltaic support structure for floating water, comprising:

[0007] A column assembly includes at least two columns spaced apart, wherein the at least two columns include a first column, which is mounted on the water surface by a floating mechanism;

[0008] A beam assembly, comprising at least two beams, each beam being positioned at the top of a column in a corresponding manner;

[0009] A cable assembly, the cable assembly including a load-bearing cable, the load-bearing cable being disposed on the crossbeams of at least two of the columns and used to support the photovoltaic module;

[0010] The first counterweight assembly includes a first cable and a first counterweight. One end of the first cable is anchored to the bottom of the water, and the other end is connected to the first counterweight. The first counterweight assembly is located on the first column and provides a downward force.

[0011] In some embodiments, the first cable holds the first counterweight to the first column via a first pulley assembly, the first pulley assembly including a first pulley and a first pulley bracket, the first pulley being mounted to the first column via the first pulley bracket;

[0012] The first pulley bracket includes two spaced-apart fixed plates, the first pulley is installed between the two fixed plates, and the distance between the two fixed plates is less than the width of the first counterweight.

[0013] In some embodiments, the number of the first pulley assemblies is eight, and the eight first pulley assemblies are evenly spaced; and / or, the number of the first pulleys in each first pulley assembly is two.

[0014] In some embodiments, the cable assembly further includes a wind-resistant cable that passes through the at least two columns and is located below the load-bearing cable. There are two load-bearing cables, and a wind-resistant frame is provided between the two load-bearing cables and the wind-resistant cable.

[0015] In some embodiments, the floating flexible photovoltaic support also includes a second counterweight assembly, which includes a second cable and a second counterweight. One end of the second cable is anchored to the bottom of the water, and the other end is connected to the second counterweight. The second counterweight assembly is disposed on the wind-resistant frame and provides a downward force.

[0016] In some embodiments, the floating flexible photovoltaic support further includes a second pulley assembly, which includes a second pulley and a second pulley support. The second pulley is located inside the second pulley support, and the second cable is wound around the second pulley. The second pulley assembly is connected to the wind-resistant frame to place the second counterweight on the wind-resistant frame.

[0017] In some embodiments, the wind-resistant frame includes multiple connecting rods, each connecting rod including a main body and lugs located at both ends of the main body. The second pulley bracket includes a base plate and two limiting plates located on both sides of the base plate. The second pulley is located between the two limiting plates. The base plate is fixedly connected to the lugs of the connecting rods by fasteners.

[0018] In some embodiments, there are multiple second pulley assemblies, each located at the end point where the wind-resistant frame connects to the load-bearing cable.

[0019] In some embodiments, at least two of the columns further include a second column, wherein the first column and the second column are respectively floated on the water surface by buoys; or, the second column is fixed to the ground.

[0020] In some embodiments, there are two second columns, both of which are fixed to the ground and have their tops tilted in opposite directions; and each of the two second columns has a side anchor cable on the opposite side, with one end of the side anchor cable connected to the top of the second column and the other end connected to the ground, and the side anchor cable is perpendicular to the ground.

[0021] In some embodiments, the first cable and the second cable are respectively anchored to the bottom of the water by a third counterweight; and / or, the floating mechanism is a buoy, and the first column is fixedly connected to the buoy.

[0022] This application also discloses a flexible photovoltaic system for floating water, comprising:

[0023] Photovoltaic modules and the flexible photovoltaic support for water provided in any of the above embodiments.

[0024] This application has at least one of the following beneficial effects:

[0025] 1. In this application, the first counterweight assembly is disposed on the first column and can provide a downward force to the first column; at the same time, the first cable in the first counterweight assembly is anchored to the bottom of the water, which can restrain the first column within the required range and prevent it from drifting away with the wind and waves. When wind and waves come, the first column will move up and down with the rise and fall of the wind and waves. When the first column tends to move upward, the first counterweight will provide a downward pull on the second column under its own weight. In addition, the end of the first cable anchored to the bottom of the water can also provide a downward pull on the first column, thereby reducing the magnitude of the upward displacement of the first column, so as to cope with the impact of wind and waves, stabilize the entire system, and reduce property damage caused by strong winds and other factors.

[0026] 2. In this application, the first pulley bracket for fixing the first pulley includes two spaced-apart fixing plates. The distance between the two fixing plates is less than the width of the first counterweight, thus limiting the movement of the first counterweight. When dealing with strong waves and winds, if the tension of the first counterweight and the first cable cannot counteract the upward force of the first column, the first counterweight slides to the first pulley bracket. The fixing plates' limitation on the first counterweight creates a mechanical brake to resist the impact of strong winds and waves.

[0027] 3. In this application, the first pulley assembly has two pulleys, and the first cable is wound around the two pulleys with a large number of turns. Thus, when the first column rises and falls under the action of wind and waves, the sliding speed of the first cable is slowed down due to the friction between itself and the first pulley. Moreover, the more turns the first cable is wound, the more obvious the reduction in its sliding speed is. The overall structure of the flexible photovoltaic support on the water is more stable and can better cope with the impact of large waves and the wind force in strong winds.

[0028] 4. In this application, two load-bearing cables are used, enabling stable support of the photovoltaic modules with fewer components. Furthermore, the two load-bearing cables facilitate the installation of the wind-resistant frame, improving the overall structural stability of the floating flexible photovoltaic system. This application also includes a second counterweight assembly on the wind-resistant frame. When the floating flexible photovoltaic system is affected by negative winds, the second counterweight in the second counterweight assembly provides downward tension under its own weight. Simultaneously, the end of the second cable anchored to the seabed also provides downward tension to the floating flexible photovoltaic system, enhancing its anti-overturning capability. Attached Figure Description

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0030] Figure 1 This is a three-dimensional structural diagram of the flexible photovoltaic support structure on water provided in one embodiment of the present application in one state;

[0031] Figure 2 This is a three-dimensional structural diagram of the flexible photovoltaic support for waterborne applications provided in one embodiment under another state;

[0032] Figure 3 yes Figure 2 A magnified schematic diagram of the three-dimensional structure at point A shown;

[0033] Figure 4 This is a three-dimensional structural diagram of the second column and corresponding counterweight provided in one embodiment of this application;

[0034] Figure 5 yes Figure 4 A magnified schematic diagram of the three-dimensional structure at point B shown;

[0035] Figure 6 This is a partial three-dimensional structural diagram of the wind-resistant frame and corresponding counterweight provided in one embodiment of this application;

[0036] Figure 7 This is a three-dimensional structural diagram of the second pulley assembly provided in one embodiment of the present application.

[0037] Explanation of icon numbers:

[0038] 100. Flexible photovoltaic support structure on water; 110. First column; 111. Floating pontoon; 120. Second column; 121. Side anchor cable; 122. Inclined pile foundation; 123. Side anchor support; 130. Load-bearing cable; 140. Wind-resistant cable; 150. Wind-resistant frame; 151. Connecting rod; 161. First cable; 162. First counterweight; 163. Second cable; 164. Second counterweight; 165. Third counterweight; 170. First pulley assembly; 171. First pulley; 172. First pulley bracket; 1721. Fixing plate; 180. Second pulley assembly; 181. Second pulley; 182. Second pulley bracket; 1821. Base plate; 1822. Limiting plate; 190. Crossbeam;

[0039] 200. Photovoltaic modules;

[0040] 301. Ground; 302. Water surface. Detailed Implementation

[0041] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0042] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0043] To keep the drawings concise, each drawing only schematically shows the parts relevant to this application, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0044] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0045] In this document, 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 fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0046] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this application are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the description of the positions of these components changes, these directional indications also change accordingly.

[0047] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] According to a specific embodiment provided in this application, see [link to specific embodiment]. Figures 1 to 4 A flexible photovoltaic support 100 for floating applications is disclosed, comprising a column assembly, a beam assembly, and a cable assembly. The column assembly includes at least two columns spaced apart; the beam assembly includes at least two beams 190, each beam 190 corresponding to one of the columns at its top; the cable assembly includes load-bearing cables 130, which are mounted on the beams 190 of the at least two columns to support photovoltaic modules 200. Preferably, there are two load-bearing cables 130 to stably support the photovoltaic modules 200.

[0049] The 100-meter-long flexible photovoltaic support system for water features a large span, high clearance, low material consumption, strong wind resistance, adaptability to large tilt angles, simple installation, reduced difficulty in pile foundation construction, and lower cost. It does not require large-area installation, adapts to different terrains and water depths, and is suitable for more investors.

[0050] Further, see Figures 1 to 5The system includes at least two columns, including a first column 110, which floats on the water surface 302 via a floating mechanism. Specifically, a float 111 is provided on the water surface 302, and one end of the first column 110 is fixed to the float 111. The flexible photovoltaic support 100 also includes a first counterweight assembly, which includes a first cable 161 and a first counterweight 162. One end of the first cable 161 is anchored to the bottom of the water, anchoring the first column 110 within the required range to prevent it from drifting away with the waves. The other end of the first cable 161 is connected to the first counterweight 162. The first counterweight assembly is located on the first column 110 and provides a downward force to the first column 110. In addition to the float 111, the floating mechanism can also be other forms such as a buoy box, a float assembly, or a rope.

[0051] When waves arrive, the first support column 110 will move up and down with the waves. When the first support column 110 tends to move upward, the first counterweight 162 will provide a downward pulling force to the first support column 110 under its own weight, thereby reducing the magnitude of the upward displacement of the first support column 110. During this process, the end of the first cable 161 anchored to the bottom of the water can also provide a downward pulling force to the first support column 110. Together with the first counterweight 162, this counteracts the upward tendency of the first support column 110, making the entire system more stable and reducing property damage caused by strong winds and other factors to the flexible photovoltaic support 100 on the water.

[0052] Specifically, see Figure 5 The first cable 161 connects the first counterweight 162 to the first column 110 via the first pulley assembly 170. The first pulley assembly 170 includes a first pulley 171 and a first pulley bracket 172. The first pulley 171 is mounted on the first column 110 via the first pulley bracket 172. The first pulley bracket 172 includes two spaced-apart fixing plates 1721, which are welded to the side wall of the first column 110. The first pulley 171 is rotatably mounted between the two fixing plates 1721, and the distance between the two fixing plates 1721 is less than the width of the first counterweight 162, which allows for quick positioning of the first counterweight 162. Thus, when dealing with strong waves and winds, if the tension of the first counterweight 162 and the first cable 161 cannot counteract the force that causes the first column 110 to float, the first counterweight 162 will slide to the first pulley bracket 172. The fixed plate 1721 limits the first counterweight 162 to form a mechanical brake to resist the impact of strong winds and waves, effectively improving the ability of the flexible support on the water to cope with the impact of strong waves and wind, and making it more stable.

[0053] As a preferred option, see Figure 4 and Figure 5The number of first pulley assemblies 170 is eight, so that the flexible photovoltaic support 100 on the water can better cope with the impact of wind and waves. The eight first pulley assemblies 170 are evenly spaced, which is conducive to the uniform force on the first column 110, making it less likely to overturn due to unbalanced force and thus more stable.

[0054] In actual production, the number of first pulleys 171 in each first pulley assembly 170 can be one or more. In this embodiment, see [reference needed]. Figure 5 The number of first pulleys 171 in each pulley assembly is preferably two. The first cable 161 is wound around the two first pulleys 171, which can form multiple windings, making the force more reasonable. When facing large waves, the multiple windings increase the friction between the first cable 161 and the first pulleys 171, reducing the sliding speed of the first cable 161. The more windings, the more obvious the reduction effect, thus forming mechanical braking.

[0055] Specifically, when the first column 110 rises and falls under the influence of wind and waves, the first cable 161 can slide through the first pulley 171. Friction is generated between the first cable 161 and the first pulley 171, hindering the sliding of the first cable 161 and reducing its sliding speed. Therefore, this embodiment increases the number of turns of the first cable 161 by setting two first pulleys 171, thus slowing down the sliding speed of the first cable 161. The more turns the first cable 161 has, the more significant the reduction in its sliding speed, resulting in a more stable overall structure for the flexible photovoltaic support 100 on the water, better able to withstand the impact of large waves and the wind force during strong winds.

[0056] In one example embodiment, at least two columns further include second columns 120, with the first column 110 and the second column 120 floating on the water surface 302 via buoys 111. Preferably, there are two second columns 120, located on either side of the first column 110. In this case, the second column 120 should also be equipped with eight first pulley assemblies 170 and corresponding first cables 161 and first counterweights 162 to withstand the impact of large waves and wind forces.

[0057] Of course, in practical applications, one of the two second columns 120 can float on the water surface 302 via a buoy 111, while the other is fixed to the ground 301. Or, see... Figure 1 and Figure 2Alternatively, both second columns 120 can be fixed to the ground 301, while only the first column 110 floats on the water surface 302 via a buoy 111. Although this configuration sacrifices the possibility of constructing the flexible photovoltaic support 100 in the open sea, the overall structure is more stable. As long as it is constructed near the coast, such as at the sea or estuary, the property damage caused by the flexible photovoltaic support 100 during typhoons and other impacts can be greatly reduced.

[0058] Specifically, see Figures 1 to 3 The second column 120 is fixed to the ground 301, and the tops of both second columns 120 are inclined in a direction away from each other, thus being inclined to the ground 301, which provides better wind resistance compared to being vertically erected on the ground 301. Furthermore, each of the two second columns 120 is provided with a side anchor cable 121 on the side away from each other. One end of the side anchor cable 121 is connected to the top of the second column 120, and the other end is connected to the ground 301. The side anchor cable 121 is perpendicular to the ground 301, which helps to stabilize the second column 120 and further improves the overall stability of the floating flexible photovoltaic support 100. The angle between the second column 120 and the load-bearing cable 130 is the same as the angle between the second column 120 and the side anchor cable 121. The second column 120 simultaneously bears a horizontal tension F1 from the load-bearing cable 130 and a vertical downward tension F2 from the side anchor cable 121. When the angle between the second column 120 and the load-bearing cable 130 is the same as the angle between the second column 120 and the side anchor cable 121, the direction of the resultant force F of the tension F1 and tension F2 coincides with the axis of the second column 120. The second column 120 is an axially compressed member and is not affected by horizontal shear force, thus achieving a design without horizontal shear force on the second column 120. This shear-free design in this embodiment avoids the risk of vertical column failure due to horizontal displacement of the foundation caused by excessive horizontal force, reducing costs. In this embodiment, the preferred tilt angle of the second column 120 relative to the ground 301 is 45°.

[0059] Specifically, see Figure 3 An inclined pile foundation 122 is installed on the ground 301. The second column 120 is fixed to the inclined pile foundation 122 by anchor bolts or welding. The inclined pile foundation 122 and the second column 120 are coaxially arranged. Correspondingly, a side anchor support 123 is installed on the ground 301, and the side anchor cable 121 is tightened to the top of the second column 120 by pulling anchor.

[0060] In one specific embodiment, see Figure 2 , Figure 3 , Figure 5 and Figure 6Both the second column 120 and the first column 110 are equipped with a crossbeam 190 at their top, and the crossbeam 190 is inclined relative to the horizontal plane. At this time, the load-bearing cable 130 passes through the crossbeam 190, which allows the photovoltaic module 200 to be inclined relative to the horizontal plane, thereby obtaining greater power generation and high power generation efficiency.

[0061] For example, the cable assembly may further include a wind-resistant cable 140, which passes through the first column 110 and the second column 120 and is located below the load-bearing cable 130. Specifically, one end of the load-bearing cable 130 and the wind-resistant cable 140 are respectively fixed to a crossbeam 190 at the top of the second column 120, and the other end passes through the crossbeam 190 at the top of the first column 110 and is fixed to a crossbeam 190 at the top of the other second column 120. In this case, the number of load-bearing cables 130 is preferably two, and a wind-resistant frame 150 is provided between the two load-bearing cables 130 and the wind-resistant cable 140. One end of the wind-resistant frame 150 is fixedly connected to the two load-bearing cables 130, and the other end is fixedly connected to the wind-resistant cable 140 below. The load-bearing cables 130 and the wind-resistant cable 140 are connected by the wind-resistant frame 150, which increases the stability of the flexible photovoltaic support and thus improves the wind resistance of the flexible support on water.

[0062] The wind-resistant frame 150 is a triangular pyramid, square pyramid, pentagonal pyramid, or other polygonal pyramidal structure. In this embodiment, see [link to relevant documentation]. Figure 6 The wind-resistant frame 150 has a triangular pyramid structure. The overall frame of the triangular pyramid wind-resistant frame 150 is composed of multiple connecting rods 151 connected end to end. Each connecting rod 151 includes a main body and ears at both ends of the main body. The ears are connected to the main body by bending or welding. Fasteners pass through the ears of adjacent connecting rods 151 to fix the multiple connecting rods 151 together. In this embodiment, the fastener is specifically a lifting eye bolt. The threaded rod of the lifting eye bolt passes through the ear of the connecting rod. The load-bearing cable 130 and the wind-resistant cable 140 pass through the lifting eye of the corresponding lifting eye bolt, thereby achieving the connection with the wind-resistant frame 150.

[0063] In this embodiment, two load-bearing cables 130 are used, which can achieve stable support for the photovoltaic module 200 with fewer components, making installation convenient and cost-effective. At the same time, the arrangement of two load-bearing cables 130 is also more conducive to the installation of the wind-resistant frame 150, improving the overall structural stability of the floating flexible photovoltaic support 100.

[0064] Preferably, see Figure 2 and Figure 6 The flexible photovoltaic support 100 also includes a second counterweight assembly, which includes a second cable 163 and a second counterweight 164. One end of the second cable 163 is anchored to the bottom of the water, and the other end is connected to the second counterweight 164. The second counterweight assembly is located on the wind-resistant frame 150 and provides a downward force.

[0065] In this embodiment, see Figure 6 and Figure 7 The second cable 163 connects the second counterweight 164 to the wind-resistant frame 150 via the second pulley assembly 180. Specifically, the wind-resistant frame 150 is provided with the second pulley assembly 180, which includes a second pulley 181 and a second pulley bracket 182. The second pulley 181 is located inside the second pulley bracket 182, and the second cable 163 is wound around the second pulley 181. The second pulley bracket 182 is fixed to the lug of the connecting rod 151 of the wind-resistant frame 150. Furthermore, the second pulley bracket 182 includes a base plate 1821 and limiting plates 1822 located on both sides of the base plate 1821. The two ends of the rotating shaft are respectively fixed on the two limiting plates 1822 and pass through the axis of the second pulley 181, thereby limiting the second pulley 181 between the two limiting plates 1822. The threaded rod of the eye bolt that fixes the windproof frame 150 passes through the ear of the corresponding connecting rod 151 and continues to pass through the base plate 1821, thereby fixing the second pulley assembly 180 on the windproof frame 150.

[0066] In this embodiment, the second pulley assembly 180, the second cable 163, and the second counterweight 164 are arranged in a one-to-one correspondence, and there are three of each of the second pulley assembly 180, the second cable 163, and the second counterweight 164. The three second pulley assemblies 180 are located at the end points where the wind-resistant frame 150 and the load-bearing cable 130 are connected.

[0067] When the flexible photovoltaic support 100 on the water is affected by negative wind, the second counterweight 164 will provide a downward pulling force to the flexible photovoltaic support 100 under its own weight. At the same time, the end of the second cable 163 anchored to the bottom of the water can also provide a downward pulling force to the flexible photovoltaic support 100 on the water, thereby improving the overturning resistance of the flexible photovoltaic support 100 on the water to cope with strong winds.

[0068] In the above embodiments, the first cable 161 and the second cable 163 are respectively anchored to the bottom of the water by the third counterweight 165. The weight of the third counterweight 165 is preferably 2 tons or more, which can sink to the bottom of the water to play a good anchoring role. At the same time, it can also provide downward tension for the flexible photovoltaic support 100 on the water under its own weight. It works in conjunction with the first counterweight 162 and the second counterweight 164 to cope with the impact of wind and waves when they come.

[0069] Specifically, during the on-site assembly of the flexible photovoltaic support 100, piling is required first. The inclined pile foundations 122 on the shore are driven at the designed distances to ensure they are on a horizontal line. The piling depth needs to be theoretically calculated and constructed according to specifications. Next, the second column 120 is installed. The second column 120 is fixed to the inclined pile foundations 122 using anchor bolts or welding, depending on the site conditions. Care must be taken to control the installation angle of the second column 120 so that the inclination angle of its crossbeams 190 is at the same angle. Then, the first column 110 is installed. The distance from the ground is measured on the water surface. After determining the span, the third counterweight 165 is sunk to the bottom in eight directions. Before sinking, the first cable 161 must be fixed to the third counterweight 165. After the third counterweight 165 is confirmed to have sunk to the bottom, the first cable 161 is wound around the first pulley 171 and fixed to the first counterweight 162 and the buoy 111. The weight of the first counterweight 162 needs to be calculated in advance. Next, the load-bearing cable 130 is installed. It is threaded through the first column 110 using anchors and tightened on the second columns 120 and crossbeams 190 on both sides. The preload force needs to be calculated. Then, the wind-resistant frame 150 is installed. First, the wind-resistant frame 150 is assembled from below, and its installation position is measured. After determining the position, it is fixed to the load-bearing cable 130 using U-locks, clamps, etc. A steel wire rope is then used to tighten it from below, forming the wind-resistant cable 140. Afterward, the first pulley 171 is fixed to the wind-resistant frame 150 or the load-bearing cable 130. Simultaneously, the sinking position of the third counterweight 165 is measured (this is done in the same way as when the third counterweight 165 is submerged in the water). After confirmation, the third counterweight 165 is lowered into place, and the second cable 163 is wound around the second pulley 181. Finally, the second counterweight 164 is fixed in place, and its weight needs to be calculated in advance. Next, the side anchor cable 121 is installed, and the side anchor support 123 is fixed to the ground 301. Then, the side anchor cable 121 is tightened onto the crossbeam 190 of the second column 120 using a pull anchor. It should be noted that this design uses an inclined pile foundation 122 to install the second column 120, and the side anchor cable 121 must be vertically downward and perpendicular to the ground 301 when tightened. Finally, the photovoltaic module 200 is installed on the load-bearing cable 130 using pressure blocks, completing the assembly of the floating flexible photovoltaic support 100.

[0070] This application also provides a flexible photovoltaic system for water, suitable for nearshore, lake, riverbed and other scenarios, including a photovoltaic module 200 and a flexible photovoltaic support 100 provided in any of the above embodiments, with the photovoltaic module 200 mounted on the flexible photovoltaic support 100.

[0071] Compared to traditional rigid fixed supports, flexible photovoltaic supports have significantly larger spans and higher clearance, enabling floating photovoltaic power stations to utilize space more efficiently and increase installed capacity. To address the issue of floating flexible photovoltaic systems drifting with the current and capsizing in large waves, this application employs a system with two side columns fixed to the shore and eight cable-stayed counterweights. This prevents drifting and reduces the vertical displacement of the floating flexible photovoltaic system when impacted by wind and waves, thereby minimizing property damage caused by strong winds and other factors.

[0072] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0073] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A flexible photovoltaic support structure for floating water, characterized in that, include: A column assembly includes at least two columns spaced apart, wherein the at least two columns include a first column, which is mounted on the water surface by a floating mechanism; A beam assembly, comprising at least two beams, each beam being positioned at the top of a column in a corresponding manner; A cable assembly, the cable assembly including a load-bearing cable, the load-bearing cable being disposed on the crossbeams of at least two of the columns and used to support the photovoltaic module; The first counterweight assembly includes a first cable and a first counterweight. One end of the first cable is anchored to the bottom of the water, and the other end is connected to the first counterweight. The first counterweight assembly is located on the first column and provides a downward force.

2. The flexible photovoltaic support structure for waterborne applications according to claim 1, characterized in that, The first cable connects the first counterweight to the first column via a first pulley assembly. The first pulley assembly includes a first pulley and a first pulley bracket. The first pulley is installed on the first column via the first pulley bracket. The first pulley bracket includes two spaced-apart fixed plates, the first pulley is installed between the two fixed plates, and the distance between the two fixed plates is less than the width of the first counterweight.

3. The flexible photovoltaic support structure for waterborne applications according to claim 2, characterized in that, The number of the first pulley assemblies is eight, and the eight first pulley assemblies are evenly spaced; and / or, the number of the first pulleys in each first pulley assembly is two.

4. The flexible photovoltaic support structure for waterborne applications according to any one of claims 1-3, characterized in that, The cable assembly also includes a wind-resistant cable, which passes through the at least two columns and is located below the load-bearing cable. There are two load-bearing cables, and a wind-resistant frame is provided between the two load-bearing cables and the wind-resistant cable.

5. The flexible photovoltaic support structure for waterborne applications according to claim 4, characterized in that, It also includes a second counterweight assembly, which includes a second cable and a second counterweight. One end of the second cable is anchored to the bottom of the water, and the other end is connected to the second counterweight. The second counterweight assembly is located on the wind-resistant frame and provides a downward force.

6. The flexible photovoltaic support structure for waterborne applications according to claim 5, characterized in that, It also includes a second pulley assembly, which includes a second pulley and a second pulley bracket. The second pulley is located inside the second pulley bracket, and the second cable is wound around the second pulley. The second pulley assembly is connected to the wind-resistant frame to place the second counterweight on the wind-resistant frame.

7. The flexible photovoltaic support structure for waterborne applications according to claim 6, characterized in that, The wind-resistant frame includes multiple connecting rods, each connecting rod having a main body and lugs at both ends of the main body. The second pulley bracket includes a base plate and two limiting plates on both sides of the base plate. The second pulley is located between the two limiting plates. The base plate is fixedly connected to the lugs of the connecting rods by fasteners.

8. The flexible photovoltaic support structure for waterborne applications according to claim 6, characterized in that, There are multiple second pulley assemblies, and each of the multiple second pulley assemblies is located at the end position where the wind-resistant frame connects to the load-bearing cable.

9. The flexible photovoltaic support structure for waterborne applications according to claim 1, characterized in that, At least two of the columns also include a second column, wherein the first column and the second column are respectively floating on the water surface by means of pontoons; or, the second column is fixed to the ground.

10. The flexible photovoltaic support structure for waterborne applications according to claim 9, characterized in that, The number of the second columns is two, the two second columns are fixed to the ground, and the tops of the two second columns are inclined in a direction away from each other; and, the two second columns are provided with side anchor cables on the side away from each other, one end of the side anchor cable is connected to the top of the second column, the other end is connected to the ground, and the side anchor cable is perpendicular to the ground.

11. The flexible photovoltaic support structure for waterborne applications according to claim 5, characterized in that, The first cable and the second cable are respectively anchored to the bottom of the water by a third counterweight; and / or, the floating mechanism is a float, and the first column is fixedly connected to the float.

12. A flexible photovoltaic system for water, characterized in that, include: Photovoltaic modules and the flexible photovoltaic support structure for water as described in any one of claims 1-11.

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