Fishing-light complementary photovoltaic support system

Abstract

A fishing-light complementary photovoltaic support system disclosed by the present invention comprises a fixed support, a flexible support and a windproof mechanism, the fixed support is arranged in an edge area and a narrow area of a photovoltaic field area, the fixed support comprises a vertical column, a cross beam and an inclined strut, one end of the vertical column and one end of the inclined strut are connected with a pipe pile, and the other end of the vertical column is connected with a flexible support. The other ends of the upright posts and the inclined struts are connected with the inclined beams to support the photovoltaic module; the plurality of fixed brackets are arranged at equal intervals to form a continuous peripheral rigid boundary; the flexible support is arranged in the central area of a photovoltaic field area, the flexible support comprises multiple rows of assemblies, each row of assemblies extend in the east-west direction, the multiple rows of assemblies are sequentially arranged in the south-north direction to form a column, each row of assemblies comprises two assembly cables and a bearing cable, and the two assembly cables are connected with the bearing cable. The bearing cable is connected with the assembly cable through a triangular support to form a triangular structure; the windproof mechanism comprises a wind-resistant cable, a connecting pile and a ground anchor, the wind-resistant cable is connected with the connecting pile, the connecting pile is arranged between any two adjacent rows of assemblies of the flexible support, and the ground anchor is arranged at the head and the tail of the flexible support in the south-north direction and connected with the assemblies through ground anchor cables. The fishing-light complementary photovoltaic support system provided by the invention has the advantages of being high in adaptability, stable in wind resistance and capable of giving consideration to light and shadow optimization.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic support, in particular to a fixed-soft combined fish-light complementary photovoltaic support system. BACKGROUND

[0002] As an important direction of the coordinated development of photovoltaic and fishery, the fish-light complementary mode can realize efficient use of land resources, but the existing photovoltaic support system has many technical bottlenecks in practical application. First, the support layout has poor adaptability to the site, and the traditional single support is difficult to meet the layout requirements of the narrow area at the edge of the photovoltaic field and the large-span area in the middle of the fishpond, and is prone to low space utilization or limited operation space. Second, the wind resistance stability is insufficient, and in coastal and typhoon-prone areas, the support system is easily impacted by strong wind load, resulting in vibration, tilting or even collapse, especially the wind-induced vibration control of flexible support in large-span area is difficult. Third, the soft soil adaptability is poor, and the surface soft soil in the fishpond area has weak bearing capacity, and the traditional pile foundation design is easy to cause foundation settlement, affecting the stability of the support structure. The uneven distribution of light causes continuous shadowing of the support, forming a local strong shadow area, which inhibits the photosynthesis of aquatic plants and restricts the efficiency of fish farming. These problems make it difficult to fully exert the synergistic effect of photovoltaic power generation and fish farming. SUMMARY

[0003] The present application aims to at least partially solve one of the problems in the related art.

[0004] To this end, an embodiment of the present application provides a fish-light complementary photovoltaic support system, which comprises a fixed support, a flexible support and a windproof mechanism. The fixed support is arranged in the edge area and narrow area of the photovoltaic field, and comprises a column, a crossbeam and a diagonal brace. One end of the column and the diagonal brace is connected with a pipe pile, and the other end of the column and the diagonal brace is connected with a diagonal beam to support photovoltaic modules. A plurality of fixed supports are arranged at equal intervals to form a continuous peripheral rigid boundary. The flexible support is arranged in the central area of the photovoltaic field, and comprises a plurality of rows of modules. Each row of modules extends in the east-west direction, and a plurality of rows of modules are arranged in the north-south direction to form a column. Each row of modules comprises two module cables and a load-bearing cable. The load-bearing cable is connected with the module cable through a triangular brace to form a triangular structure. The windproof mechanism comprises a wind-resistant cable, a connecting pile and a ground anchor. The wind-resistant cable is connected with the connecting pile, the connecting pile is arranged between any two adjacent rows of modules of the flexible support, and the ground anchor is arranged at the beginning and end of the flexible support in the north-south direction and connected with the modules through a ground anchor cable.

[0005] The embodiment of the present application has the advantages of strong adaptability, wind resistance stability and light optimization.

[0006] In some embodiments, the anti-wind cable is a net structure, the ground anchor is a concrete precast pile, and the ground anchor cable is a steel strand.

[0007] In some embodiments, the photovoltaic components of the fixed support are arranged longitudinally, and eight of the fixed supports form a structural unit.

[0008] In some embodiments, the fixed support is subjected to hot-dip galvanizing corrosion prevention treatment, and the average thickness of the galvanized layer is not less than 85 μm.

[0009] In some embodiments, the edge piles and the middle piles of the flexible support and the connecting piles have the same structure, and a cross-connection structure is arranged between the edge piles and the adjacent edge piles and between the middle piles and the adjacent middle piles, the cross-connection structure comprising two obliquely intersecting connecting members, and the two ends of the connecting members being connected to two edge piles or two middle piles respectively.

[0010] In some embodiments, the inclination angle of the photovoltaic components of the fixed support is 22°, and the inclination angle of the photovoltaic components of the flexible support is 15°.

[0011] Embodiments of the present application propose a method for arranging a fish-light complementary photovoltaic support system, comprising the following steps: Site survey and regional planning, surveying the photovoltaic field area, dividing functional areas according to the survey results, dividing the edge area and the narrow and scattered area of the photovoltaic field area into a fixed support arrangement area, and dividing the continuous large-span area in the middle of the fishpond into a flexible support arrangement area, and determining the preset positions of the ground anchors of the windbreak structure and the arrangement interval of the connecting piles; In the flexible support arrangement area, the component cables and the load-bearing cables are laid according to the requirement that each row of components extends along the east-west direction, and a row of components is formed by arranging multiple rows of components along the north-south direction in sequence; Between any two adjacent rows of components of the flexible support, the connecting piles are fixedly arranged, the net anti-wind cable is firmly connected with the connecting piles, a transverse constraint between rows is formed to limit the relative displacement and uneven vibration of the adjacent rows of components, one end of the ground anchor cable is fixedly connected with the ground anchor foundation at the north-south direction, and the other end is fixedly connected with the end component of the flexible support, so as to form a longitudinal tensile force constraint, and the north-south force of the flexible support is transmitted to the ground anchor foundation; The regular shadow of the fixed support and the diffuse shadow of the flexible support are staggered and superimposed, the continuous shadow belt is broken, the underwater light intensity distribution tends to be randomized, and local strong shadow areas are avoided.

[0012] In some embodiments, the survey includes topography, fishpond distribution, pond ridge width, horse path position, soft soil layer thickness in geological conditions, silt clay layer burial depth, underground water level, perennial wind direction and typhoon path, and illumination time length distribution.

[0013] In some embodiments, a light intensity monitoring device is installed to detect the underwater light intensity distribution in real time. By fine-tuning the arrangement spacing of the fixed supports and the cable tension of the flexible supports, the formation of local strong shadow areas or strong light areas can be avoided.

[0014] In some embodiments, the windward area is selected according to the annual wind direction and typhoon path, and fixed supports are arranged at the windward area to form a continuous rigid protective belt. Starting from the rigid protective belt at the windward area, fixed supports are arranged to extend to both sides of the site. The remaining edge area fixed supports are installed at equal intervals in a preset direction, and finally a closed outer rigid boundary is formed around the central flexible support area.

[0015] The mesh-like wind-resistant cables form a synergistic wind-resistant constraint in both the horizontal and vertical directions, effectively resisting the impact of wind loads on the flexible support, preventing uneven vibration or detachment of components, and improving the wind resistance stability of the flexible support. The fixed support features longitudinally arranged photovoltaic modules, with eight modules forming a structural unit, enhancing the overall rigidity and installation regularity of the fixed support, facilitating construction and subsequent operation and maintenance, while ensuring the continuity and integrity of the outer rigid boundary. The fixed support undergoes hot-dip galvanizing for corrosion protection, improving its corrosion resistance in humid and corrosive environments, extending its service life, and meeting the requirements for long-term stable operation. The flexible support's side piles, center piles, and connecting piles have identical structures, and the cross-connection structure between piles enhances the overall coherence and deformation resistance of the pile system, strengthening the stability of the main structure of the flexible support. The fixed support photovoltaic modules are tilted at 22°, and the flexible support photovoltaic modules at 15°, respectively adapting to the layout area and structural load-bearing requirements of the two types of supports, maximizing photovoltaic power generation efficiency while ensuring the safety of the support structure. The survey covered topography, fishpond distribution, geological conditions, wind direction and path, and sunlight. Data such as duration provides information for functional area division, support layout, and parameter design, ensuring a high degree of compatibility between the system and actual site conditions. The installation of light intensity monitoring equipment and the fine-tuning of the spacing between fixed supports and the tension of flexible support cables allow for real-time optimization of underwater light intensity distribution, precisely avoiding areas of strong shadow or strong light, ensuring the photosynthetic efficiency of aquatic plants, and meeting the needs of aquaculture. Fixed supports are arranged in the windward area based on the annual wind direction and typhoon path to form a rigid protective belt, which then extends to form a closed outer rigid boundary. This rigid barrier alters the airflow path, attenuates internal wind speed, and reduces turbulence intensity, effectively suppressing wind-induced vibrations of the flexible supports and enhancing the overall wind resistance of the system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the actual layout of the solar-fishery complementary photovoltaic support system according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the structure of the fixed support of the solar-fishery complementary photovoltaic support system according to an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the flexible support of the solar-fishery complementary photovoltaic support system according to an embodiment of the present invention.

[0019] Reference numerals: 1. Fixed support; 101. Pipe pile; 102. Column; 103. Diagonal brace; 2. Flexible support; 201. Component cable; 202. Load-bearing cable; 3. Wind-resistant cable; 4. Ground anchor cable. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] An embodiment of the present invention proposes a photovoltaic support system for fisheries and solar power, including a fixed support 1, a flexible support 2, and a windproof mechanism. The fixed support 1 is arranged in the edge and narrow areas of the photovoltaic field. The fixed support 1 includes a column 102, a crossbeam, and a diagonal brace 103. One end of the column 102 and the diagonal brace 103 is connected to a pipe pile 101, and the other end of the column 102 and the diagonal brace 103 is connected to the diagonal beam to support the photovoltaic modules. Multiple fixed supports 1 are arranged at equal intervals to form a continuous outer rigid boundary. The flexible support 2 is arranged in the central area of ​​the photovoltaic field. The flexible support 2 includes multiple rows of components, each row extending east-west, and the multiple rows of components arranged sequentially in a north-south direction to form a column. Each row of components includes two component cables 201 and one load-bearing cable 202. The load-bearing cable 202 is connected to the component cable 201 through a triangular brace to form a triangular structure. The windproof mechanism includes wind-resistant cables 3, connecting piles, and ground anchors. The wind-resistant cables 3 are connected to the connecting piles, which are arranged between any two adjacent rows of components in the flexible support 2. The ground anchors are arranged at the beginning and end of the north-south direction of the flexible support 2 and are connected to the components through ground anchor cables.

[0022] Fixed supports 1 are arranged in the edge and narrow areas of the photovoltaic field. Columns 102, beams, and diagonal braces 103 work together to form a complete support structure. One end of the columns 102 and diagonal braces 103 is firmly connected to the pipe piles 101 to form a reliable foundation support, and the other end is connected to the diagonal beams to stably support the photovoltaic modules. The continuous rigid boundary formed by multiple fixed supports 1 arranged at equal intervals can fully adapt to the spatial layout requirements of the edge and narrow areas. With its own rigidity, it blocks the direct impact of external wind loads, changes the airflow path, and reduces the turbulence intensity in the internal area, creating a stable external environment for the flexible supports 2 in the central area. Flexible supports 2 are arranged in the central area of ​​the photovoltaic field. The arrangement of each row of modules extending in the east-west direction and multiple rows arranged in the north-south direction can accurately adapt to the large span space in the middle of the fishpond. In each row of modules, two module cables 201 and one load-bearing cable 202 are connected by triangular braces to form a triangular structure. The geometric stability enhances the deformation resistance and wind vibration resistance of the flexible supports 2. The high clearance design provides ample operating space for aquaculture operations. In the windproof mechanism, connecting piles are arranged between adjacent rows of components on the flexible support 2 and connected to the wind-resistant cable 3, forming an effective lateral constraint between rows, limiting the relative displacement and uneven vibration of adjacent rows of components. Ground anchors are arranged at the beginning and end of the flexible support 2 in the north-south direction and connected to the components through ground anchor cables, constructing a longitudinal tensile constraint, transferring the wind load borne by the flexible support 2 in the north-south direction to the ground anchor foundation. The three of them work together with the outer rigid boundary of the fixed support 1 to improve the wind resistance stability of the entire system. The fixed support 1 and the flexible support 2 work together to form staggered shadows, improving the underwater light intensity distribution, taking into account both photovoltaic power generation efficiency and aquaculture needs, and realizing the efficient and comprehensive utilization of land resources.

[0023] In some embodiments, the wind-resistant cable 3 is a mesh structure, the ground anchor is a precast concrete pile, and the ground anchor cable is a steel strand.

[0024] Specifically, the wind-resistant cable 3 adopts a mesh structure to increase the contact constraint range with adjacent rows of components, so that the lateral constraint force is evenly transmitted to each row of components, limiting the relative displacement and uneven vibration between components and avoiding local stress concentration. The ground anchor uses precast concrete piles, which have high strength and high bearing capacity, and are suitable for the soft soil geological conditions of fishponds, providing a stable underlying support for the wind-resistant system and ensuring reliable longitudinal constraint. The ground anchor cable uses steel strands, which have both tensile strength and toughness, transferring the wind load borne by the flexible support 2 in the north-south direction to the ground anchor foundation. These three elements work together with the outer rigid boundary of the fixed support 1 to complement each other, improving the flexible support 2's anti-overturning and anti-vibration capabilities under extreme wind loads such as typhoons, ensuring the structural safety of the entire photovoltaic support system, and providing a reliable guarantee for the stable operation of photovoltaic power generation and aquaculture.

[0025] In some embodiments, the photovoltaic modules of the fixed bracket 1 are arranged longitudinally, and eight fixed brackets 1 form a structural unit.

[0026] Specifically, the photovoltaic modules of the fixed support 1 are arranged longitudinally, forming a force transmission path with the support structure consisting of the column 102, crossbeam, and diagonal brace 103. This ensures that the weight of the modules and external loads such as wind and snow are evenly distributed throughout the entire support system, avoiding structural damage caused by localized stress concentration. This design is suitable for spatial arrangement needs in edge and narrow areas, improving land utilization. Eight fixed supports 1 are combined to form a structural unit, enhancing the overall rigidity and collaborative load-bearing capacity of the fixed support 1, reducing the risk of deformation of individual supports. The standardized unit facilitates batch assembly and positioning during construction, improving installation efficiency. In later operation and maintenance, unified inspection and maintenance of the complete structural unit are carried out, reducing operation and maintenance costs. The continuous arrangement of multiple structural units further ensures the integrity and stability of the outer rigid boundary, strengthening the wind protection effect of the internal flexible support 2.

[0027] In some embodiments, the fixed bracket 1 is subjected to hot-dip galvanizing for corrosion protection, and the average thickness of the galvanized layer is not less than 85μm.

[0028] Specifically, the fixed bracket 1 undergoes hot-dip galvanizing for corrosion protection, forming a dense and strongly adhering zinc layer on its surface. This effectively isolates the bracket substrate from air, moisture, and corrosive media in the fishpond environment, inhibiting rust formation. The average thickness of the galvanized layer, not less than 85μm, ensures the protective strength and durability of the anti-corrosion layer, making it suitable for humid and salt-spray-prone highly corrosive environments. This prevents the bracket from experiencing a decrease in structural strength and a shortened service life due to long-term corrosion. The anti-corrosion treatment not only ensures the structural integrity of the fixed bracket 1 itself but also maintains its continuous stability and wind resistance as an external rigid boundary, reducing maintenance costs and safety hazards caused by bracket corrosion damage. This provides a reliable guarantee for the long-term stable operation of the entire fish-solar hybrid photovoltaic bracket system.

[0029] In some embodiments, the side piles, middle piles, and connecting piles of the flexible support 2 have the same structure. A cross connection structure is provided between the side piles and adjacent side piles, and between the middle piles and adjacent middle piles. The cross connection structure includes two inclined intersecting connectors, and the two ends of the connectors are respectively connected to the two side piles or the middle piles.

[0030] Specifically, the side piles, middle piles, and connecting piles of the flexible support 2 adopt the same structure, realizing standardized production and universal installation of piles and supporting accessories. This reduces material classification and adaptation costs during construction, improves construction efficiency, and reduces the difficulty of spare parts replacement during later maintenance. The cross-connection structure between the side piles and adjacent side piles, and between the middle piles and adjacent middle piles, connects the corresponding piles at both ends through two inclined intersecting connectors, forming a stable X-shaped force unit. Utilizing the geometric structural characteristics, this enhances the lateral tensile force and collaborative force-bearing capacity between piles, suppresses the lateral displacement and tilting of individual piles, and enables the dispersed piles to form an overall force-bearing system, improving the rigidity and deformation resistance of the flexible support 2's foundation structure. It also works in conjunction with the triangular structure formed by the component cable 201 and the load-bearing cable 202, as well as the windproof mechanism, to disperse the impact of external forces such as wind loads on the flexible support 2, ensuring the overall stability of the flexible support 2 in large-span areas and providing structural support for the safe installation of photovoltaic modules and the smooth operation of aquaculture.

[0031] In some embodiments, the photovoltaic module of the fixed bracket 1 has a tilt angle of 22°, and the photovoltaic module of the flexible bracket 2 has a tilt angle of 15°.

[0032] Specifically, the photovoltaic module tilt angle of fixed support 1 is set at 22°. This tilt angle, combined with the layout environment of the edge area and the characteristics of the rigid support structure, and considering the solar altitude angle distribution at the project's latitude, maximizes the reception of solar radiation and improves photovoltaic power generation efficiency. Simultaneously, it avoids increasing the wind load bearing pressure on fixed support 1 due to an excessively large tilt angle, achieving force balance with the rigid system composed of column 102, crossbeam, and diagonal brace 103. The photovoltaic module tilt angle of flexible support 2 is set at 15°. Considering the large span and flexible load-bearing structural characteristics, the smaller tilt angle reduces the tension and torque of the module's self-weight and wind load on the module cable 201 and load-bearing cable 202, reducing the risk of longitudinal deformation of the support, ensuring the structural stability of flexible support 2, and adapting to the high-clearance aquaculture requirements of the central area, avoiding excessive tilt angle that would restrict the working space below. By matching the structural load-bearing capacity and layout requirements of the two types of supports respectively, the regular shadow of the fixed support 1 and the diffuse shadow of the flexible support 2 are better staggered by the difference in tilt angle, which optimizes the uniformity of underwater light intensity, takes into account the efficiency of photovoltaic power generation and the lighting requirements of aquaculture, and achieves functional synergy and efficiency.

[0033] An embodiment of the present invention proposes a method for arranging a photovoltaic support system for fisheries and solar power, comprising the following steps: Site survey and regional planning: Survey the photovoltaic field area, divide the functional areas according to the survey results, divide the edge area and small and scattered area of ​​the photovoltaic field area into fixed support 1 layout area, and divide the continuous large span area in the middle of the fish pond into flexible support 2 layout area, and determine the preset position of the ground anchor of the windproof mechanism and the arrangement spacing of the connecting piles. In the flexible support 2 arrangement area, component cables 201 and load-bearing cables 202 are laid according to the requirement that each row of components extends in the east-west direction, and multiple rows of components are arranged in the north-south direction to form a row. Between any two adjacent rows of components of the flexible support 2, connecting piles are fixedly arranged to firmly connect the mesh wind-resistant cable 3 to the connecting piles, forming a lateral constraint between rows, which restricts the relative displacement and uneven vibration of adjacent rows of components; one end of the ground anchor cable is fixedly connected to the ground anchor foundation at both ends in the north-south direction, and the other end is fixedly connected to the end component of the flexible support 2, forming a longitudinal tensile constraint, so that the north-south force of the flexible support 2 is transmitted to the ground anchor foundation. The regular shadow of the fixed support 1 and the diffuse shadow of the flexible support 2 are interspersed and superimposed, breaking the continuous shadow band, making the underwater light intensity distribution more random, and avoiding local strong shadow areas.

[0034] In some embodiments, the survey includes topography, fishpond distribution, pond embankment width, horse trail location, thickness of soft soil layer, depth of silty clay layer, groundwater level, annual wind direction and typhoon path, and distribution of sunshine duration.

[0035] Specifically, the survey covers topography, fishpond distribution, pond width, and horse trail location, enabling precise understanding of the spatial layout characteristics of the photovoltaic field. This provides spatial data support for the functional area division of fixed support 1 and flexible support 2, ensuring that the support arrangement avoids obstacles and makes full use of site resources. By clearly defining the thickness of the soft soil layer, the depth of the silty clay layer, and the groundwater level in the geological conditions, suitable pile foundation types, embedment depths, and foundation structure forms can be selected to avoid settlement or instability of the support foundation due to improper geological compatibility. Understanding the annual wind direction and typhoon paths allows for accurate identification of the windward location, providing wind direction information for the priority placement area of ​​fixed support 1 and the construction of rigid barriers, thus enhancing the targeted nature of the system's wind-resistant design. Mastering the distribution of sunlight duration can help optimize the tilt angle of photovoltaic modules and the density of support arrangement, creating conditions for the staggered distribution of shadows between fixed support 1 and flexible support 2, ensuring uniform underwater light intensity. This multi-dimensional survey content forms a complete data support system, ensuring that subsequent regional planning, support design, windproof layout, and light and shadow optimization are all based on the actual site conditions, guaranteeing the structural safety, functional compatibility, and efficient operation of the solar-fishery complementary photovoltaic support system from the source.

[0036] In some embodiments, a light intensity monitoring device is installed to detect the underwater light intensity distribution in real time. By finely adjusting the arrangement spacing of the fixed bracket 1 and the cable tension of the flexible bracket 2, the formation of local strong shadow areas or strong light areas can be avoided.

[0037] Specifically, installing light intensity monitoring equipment can capture light intensity distribution data in different areas and depths underwater, providing feedback on the light balance status and avoiding the limitations of traditional static layouts that cannot cope with dynamic changes in light. Targeted fine-tuning of the spacing of the fixed supports 1 can optimize the coverage density and distribution range of regular shadows, while fine-tuning the cable tension of the flexible supports 2 can change the spatial orientation of the components, thereby adjusting the dispersion of diffuse shadows. These two fine-tuning methods, adapted to the light monitoring results, form a dynamic optimization closed loop that effectively avoids the problems of light starvation in aquatic plants caused by localized strong shadow areas and light inhibition caused by strong light areas. This stabilizes the underwater light intensity within a reasonable range suitable for aquatic plant photosynthesis, ensuring the normal operation of aquaculture, while not affecting the light-receiving efficiency of the photovoltaic modules. This further strengthens the functional synergy between photovoltaic power generation and aquaculture, improving the operational stability and overall benefits of the entire solar-aquaculture complementary system.

[0038] In some embodiments, the windward area is selected according to the annual wind direction and typhoon path, and fixed supports 1 are arranged at the windward area to form a continuous rigid protective belt. Starting from the rigid protective belt at the windward area, fixed supports 1 are arranged to extend to both sides of the site. The remaining edge area fixed supports 1 are installed at equal intervals in a preset direction, and finally a closed outer rigid boundary is formed around the central flexible support 2 area.

[0039] Specifically, the windward area is precisely selected based on the annual wind direction and typhoon path, giving the fixed support 1 a clear wind-resistant purpose. A continuous rigid protective belt is preferentially formed at the windward side, which can directly block the head-on impact of strong winds such as typhoons, change the airflow path to create flow separation, and initially reduce the wind load intensity. Starting from the protective belt, the fixed support 1 is installed at equal intervals on both sides of the site in a predetermined direction to form a closed outer rigid boundary around the central flexible support 2 area. This can prevent strong winds from seeping in from other edge gaps of the site, achieving all-round wind protection. The closed rigid boundary, with its own rigidity, further reduces the wind speed and turbulence intensity in the internal area, effectively suppresses the periodic vibration of the flexible support 2 caused by the Karman vortex street, reduces the amplitude of the support system, and improves the structural stability of the entire photovoltaic support system under extreme wind loads. At the same time, it creates a safe and stable external environment for the large-span layout of the central flexible support 2 and aquaculture operations, ensuring the long-term stable operation of photovoltaic power generation and aquaculture.

[0040] In some embodiments, light intensity monitoring devices are deployed at different depths and in different areas underwater, and fine-tuning is performed to maintain the underwater light intensity within the photosynthetic range of aquatic plants.

[0041] Specifically, light intensity monitoring equipment is deployed at different depths and in different areas underwater, overcoming the limitations of single-point monitoring. This comprehensively captures the differences in light intensity distribution throughout the entire aquaculture area, covering both surface and deep water areas, providing complete data for subsequent light optimization. Targeted fine-tuning of the spacing between fixed supports 1 and the cable tension of flexible supports 2 precisely maintains the underwater light intensity within the photosynthetic range of aquatic plants. This effectively avoids low photosynthetic efficiency caused by insufficient local light intensity, as well as light inhibition caused by excessive light intensity, ensuring the yield and quality of aquaculture. The dynamic optimization method does not affect the normal light reception and power generation efficiency of the photovoltaic modules, further strengthening the synergistic adaptability between photovoltaic power generation and aquaculture, and improving the overall benefits of the entire aquaculture-solar complementary system.

[0042] In some embodiments, during the construction of the fixed support 1, holes are drilled at 5m pile column spacing, and the pipe pile 101 penetrates the soil to a depth of ≥26m and penetrates the silty clay layer to a depth of ≥0.5m.

[0043] Specifically, during the construction of fixed support 1, holes are drilled at 5m pile spacing to balance support density and construction economy. This avoids excessive spacing, which could lead to stress concentration and structural deformation, while insufficient spacing would increase the amount of piles used and construction costs. It also ensures the regularity of the continuous rigid boundary formed by the equally spaced arrangement of multiple fixed supports 1. Pipe piles 101 are driven into the soil to a depth of ≥26m and into the silty clay layer to a depth of ≥0.5m. This allows the pipe piles 101 to penetrate the weaker surface soft soil layer and anchor in the stronger and more stable silty clay layer, significantly improving the pull-out and compressive bearing capacity of the fixed support 1 foundation. This effectively resists the uplift load and horizontal thrust under extreme weather conditions such as typhoons, preventing foundation settlement or tilting. It is suitable for the soft soil geological conditions of the fishpond area, ensuring the structural stability of fixed support 1 as an outer rigid barrier. This provides a solid and reliable foundation support for subsequent support assembly and photovoltaic module installation. Furthermore, standardized pile construction parameters facilitate batch operations, improving construction efficiency and reducing later maintenance costs.

[0044] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A photovoltaic support system for fisheries and solar power, characterized in that, include: The photovoltaic (PV) field comprises fixed supports, flexible supports, and a windproof mechanism. The fixed supports are located at the edge and narrow areas of the PV field. Each fixed support includes columns, beams, and diagonal braces. One end of each column and diagonal brace is connected to a pipe pile, and the other end is connected to a diagonal beam to support the PV modules. Multiple fixed supports are arranged at equal intervals to form a continuous rigid outer boundary. The flexible supports are located in the central area of ​​the PV field. Each flexible support includes multiple rows of modules, each row extending east-west. The multiple rows of modules are arranged sequentially north-south to form a column. Each row of modules includes two module cables and one load-bearing cable. The load-bearing cable is connected to the module cables via triangular braces to form a triangular structure. The windproof mechanism includes wind-resistant cables, connecting piles, and ground anchors. The wind-resistant cables are connected to the connecting piles, which are located between any two adjacent rows of modules on the flexible supports. The ground anchors are located at the beginning and end of the flexible supports in the north-south direction and are connected to the modules via ground anchor cables.

2. The solar-fishery complementary photovoltaic support system according to claim 1, characterized in that, The wind-resistant cable has a mesh structure, the ground anchor is a precast concrete pile, and the ground anchor cable is a steel strand.

3. The solar-fishery complementary photovoltaic support system according to claim 1, characterized in that, The photovoltaic modules of the fixed bracket are arranged longitudinally, and eight fixed brackets form a structural unit.

4. The solar-fishery complementary photovoltaic support system according to claim 1, characterized in that, The fixed bracket is treated with hot-dip galvanizing for corrosion protection, and the average thickness of the galvanized layer is not less than 85μm.

5. The solar-fishery complementary photovoltaic support system according to claim 1, characterized in that, The side piles and middle piles of the flexible support have the same structure as the connecting piles. The side piles are connected to adjacent side piles, and the middle piles are connected to adjacent middle piles. The cross connection structure includes two inclined intersecting connectors, and the two ends of the connectors are respectively connected to the two side piles or the middle piles.

6. The arrangement method of the solar-fishery complementary photovoltaic support system according to claim 1, characterized in that, The photovoltaic module of the fixed support has a tilt angle of 22°, and the photovoltaic module of the flexible support has a tilt angle of 15°.

7. A method for arranging a photovoltaic support system for fisheries and solar power, characterized in that, Includes the following steps: Site survey and regional planning: Survey the photovoltaic field area, divide functional areas according to the survey results, divide the edge area and small and scattered area of ​​the photovoltaic field area into fixed support layout area, and delineate the continuous large span area in the middle of the fish pond into flexible support layout area, and determine the preset position of the ground anchor of the windproof mechanism and the arrangement spacing of the connecting piles. In the flexible support layout area, component cables and load-bearing cables are laid according to the requirement that each row of components extends in the east-west direction, and multiple rows of components are arranged in the north-south direction to form a row. Between any two adjacent rows of components of the flexible support, connecting piles are fixedly arranged to firmly connect the mesh wind-resistant cable to the connecting piles, forming a lateral constraint between rows, which restricts the relative displacement and uneven vibration of adjacent rows of components; one end of the ground anchor cable is fixedly connected to the ground anchor foundation at both ends in the north-south direction, and the other end is fixedly connected to the end component of the flexible support, forming a longitudinal tensile constraint, so that the north-south force of the flexible support is transmitted to the ground anchor foundation. The regular shadows of the fixed support and the diffuse shadows of the flexible support are interspersed and superimposed, breaking the continuous shadow band and making the underwater light intensity distribution more random, thus avoiding local strong shadow areas.

8. The arrangement method of the solar-fishery complementary photovoltaic support system according to claim 7, characterized in that, The survey included topography, fishpond distribution, pond embankment width, horse trail location, geological conditions such as the thickness of soft soil layer, the depth of silty clay layer, groundwater level, annual wind direction, typhoon path, and sunshine duration.

9. The arrangement method of the solar-fishery complementary photovoltaic support system according to claim 8, characterized in that, Install light intensity monitoring equipment to detect underwater light intensity distribution in real time. By fine-tuning the spacing of the fixed supports and the tension of the flexible supports, the formation of local strong shadow areas or strong light areas can be avoided.

10. The arrangement method of the solar-fishery complementary photovoltaic support system according to claim 7, characterized in that, Based on the annual wind direction and typhoon path, select the windward area, and arrange fixed supports at the windward area to form a continuous rigid protective belt. Starting from the rigid protective belt at the windward area, extend the fixed supports to both sides of the site, and complete the installation of fixed supports in the remaining edge areas at equal intervals in the preset direction, finally forming a closed outer rigid boundary surrounding the central flexible support area.

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