Photovoltaic windbreak fence

Abstract

The application provides a photovoltaic standing board windbreak forest belt, which comprises a standing rod and a beam and / or a connecting piece, a plurality of photovoltaic panels are fixed on the standing rod and / or the beam laterally through the connecting piece to form a standing board photovoltaic array. The standing board photovoltaic array is arranged in a row with a proper height-width ratio and a gap-tooth ratio at the edge of a field ridge, a field, a field road or a field ditch to form a wind-solar board forest belt which has a windproof effect and a photovoltaic power generation effect. The photovoltaic standing board windbreak forest belt of the application replaces the existing tree-planting windbreak forest belt, has better windproof, seedling protection and yield increasing effects, realizes the purpose of not occupying additional land for photovoltaic facilities, and realizes the purpose of saving 8-12% of farmland.

Description

Technical Field

[0001] This application belongs to the field of farmland windbreak and photovoltaic power generation technology, specifically involving a photovoltaic agriculture integrated system, and in particular a photovoltaic windbreak belt with signboards that provides windbreak facilities for crops in the field, achieving synergistic effects of windbreak and seedling protection and photovoltaic power generation. Background Technology

[0002] In existing technologies, windbreaks for farmland mainly employ methods such as... Figure 4 The windbreak belt (G) shown is based on the principle of altering the wind field structure through a mixed forest belt composed of trees and shrubs. Analysis of measured data (see "Benefits of Farmland Shelterbelts and Their Impact on Crop Yields" in *Bulletin of Soil and Water Conservation*, Vol. 13, No. 5, October 1993) shows that this type of windbreak belt (G) can reduce the downwind speed of the prevailing wind by 30-50%, reduce the swaying amplitude of wheat stalks by 48%±5%, reduce the intensity of near-surface turbulence by 51%±3%, reduce the lodging rate of wheat from 25-30% to 5-8%, and increase average yield by 9%±2%. However, this technology has the following inherent drawbacks: First, resource competition: the horizontal extension range of the root system of the forest belt is 1.5-2 times the height of the tree, resulting in a 15-20% reduction in crop yield and a 12-18% reduction in soil moisture content within a 3-5m radius; Second, land use efficiency: the forest belt occupies 8-12% of the land, affecting the efficiency of mechanized operations by 20-30%; Third, ecological side effects: it changes the humidity distribution of the field microclimate and increases the risk of pests and diseases becoming host plants; Fourth, in winter, after the leaves fall, it is difficult to provide wind protection and resist sandstorms. Summary of the Invention

[0003] The purpose of this application is to provide a photovoltaic windbreak belt to replace the existing tree-planted windbreak belt (G) for wind protection of crops in fields (W), to achieve synergistic effect of wind protection and seedling protection and photovoltaic power generation, and to achieve the technical effect of photovoltaic power generation without occupying land.

[0004] This application provides a photovoltaic windbreak forest belt with a signboard, characterized in that it comprises: a signboard photovoltaic array (J) assembled from supporting structural components and longitudinally arranged photovoltaic modules.

[0005] The supporting structure components— It consists of a first upright (B) erected (e.g., the lower section of a 15-meter-long prestressed cement pipe pile is vertically driven into the ground to a depth of 3-5 meters, with the upper end standing above the ground), and a (horizontal / diagonal) beam (C) and / or (photovoltaic) connector (X) fixed to the first upright (B).

[0006] The vertically arranged photovoltaic modules— The installation consists of photovoltaic panels (D) laid out vertically along the first upright post (B), while not the optimal tilt angle for photovoltaic power generation, it is the best installation method for wind protection and seedling protection in farmland. These photovoltaic panels (D) are fixed to the beam (C) and / or the first upright post (B) using connectors (X). The width (S) of these photovoltaic panels (D) ranges from 0.15m to 3.25m, preferably from 0.3m to 1.35m, and most preferably from 0.4m to 0.69m. It is recommended that the width not exceed the length of a single, currently largest panel. The photovoltaic panels (D) are arranged at a height (I) of 0.69m to 30m, preferably 1m to 30m, and most preferably 2m to 12m. These photovoltaic panels (D) are electrically connected in series and / or in parallel. In other words, the arrangement width (S) is preferably 150mm to 2468mm or 150mm to 1308mm. This allows the use of inexpensive, universal panels, which can appropriately reduce the width (K) of the panels, thereby reducing wind resistance and achieving the effect of wind protection and seedling protection.

[0007] The stand-up photovoltaic array (J) — It consists of the supporting structure components and the vertically arranged photovoltaic modules installed on them; the height (H) of the standing photovoltaic array (J) ranges from 1.5m to 30m, the width (K) of the standing photovoltaic array (J) ranges from 0.15m to 4.25m (preferably from 0.3m to 1.9m), and the height-to-width ratio H / K of the standing photovoltaic array (J) is ≥1.8, 3, 6, 12, 24, or 98 (preferably 3-24); the height (H) is preferably 3-30m, more preferably 3-15m, and the best windproof effect is 4-13m; in specific implementation, the width (K) and its shadow width can be equal to the arrangement width (S) of the photovoltaic panel (D), or equal to the arrangement width (S) of the photovoltaic panel (D) plus the width of the first pole (B) and the second pole (A). The reason why the optimal range for the sign height (H) is set at 3m to 15m is twofold: firstly, when the sign height (H) is less than 3m, the wind protection is very poor, and crops such as wheat seedlings in the middle of the field are easily lodged; secondly, when the sign height (H) is greater than 15m, the first pole (B) must be a column with strong wind resistance and bending moment resistance (for example, a prestressed cement column with a diameter of more than 0.5m is required). This would result in the photovoltaic array (J) being unprofitable due to the high cost of the column.

[0008] Numerous (e.g., 5-500 or more) of these photovoltaic arrays (J) are arranged at intervals of 0.65m to 9m in width (T), forming a slatted, comb-like structure. These arrays are firmly erected on field ridges, edges, paths, or ditches, creating a wind-powered photovoltaic (PV) belt (L) that protects crops in the field (W) from wind and provides photovoltaic power generation. When airflow around the field (W) encounters this PV belt (L), the comb structure plays a crucial role. When a strong wind arrives, the comb structure divides and disrupts the airflow. The originally concentrated and powerful wind is broken down into several turbulent flows. This turbulence alters the airflow's movement characteristics and energy distribution, significantly reducing the direct impact of the airflow on crops in the field (W). The forest belt (L) effectively buffers and disperses wind force by transforming strong winds into turbulent flow, thereby significantly preventing lodging of crops and creating more favorable environmental conditions for crop growth in the fields (W).

[0009] It should be noted that the reason why the photovoltaic panels (D) are laid vertically in the form of a tall, upright photovoltaic array (J) instead of the traditional low-lying arrangement at the optimal tilt angle (i.e., close to the local latitude angle) is that the upright photovoltaic array (J) needs to be as tall and spaced as the tree-planted windbreak belt (G) (to form a wind comb) and have a large wind-blocking facade. Otherwise, it cannot achieve the same wind protection and seedling protection effect. Otherwise, the wind-planted windbreak belt (L) cannot be used to replace the tree-planted windbreak belt (G) to protect farmland from wind and seedlings.

[0010] Preferably, the photovoltaic windbreak forest belt is characterized by: the wind tunnel width (T) ranging from 0.65m (i.e., 0.60m wider than the standard body width of a draft ox to allow it to pass through) to 6m; and the slit ratio T / K ranging from 0.25 to 12.5, preferably 0.40 to 3.15, and optimally 0.25 to 0.75. While this is not the case... Figure 9 The continuous laying method shown (i.e., slot ratio T / K=0) is actually the optimal installation method for wind protection and seedling protection in farmland. This ensures that, on the one hand, it meets the passage requirements of agricultural machinery (standard machine width ≤ 4m) and ensures the safe passage of standard draft cattle (standard body width ≤ 0.60m); on the other hand, it maintains necessary air circulation, avoiding the formation of local turbulence; and thirdly, it ensures that crops near the photovoltaic array (J) receive intermittent sunlight, preventing yield reduction due to prolonged lack of sunlight, and guaranteeing a minimum of 25% direct sunlight exposure for nearby crops. Research shows that through the above-mentioned synergistic design of the duct width (T) and slot ratio T / K, the system can reduce leeward and crosswind speeds by 30-50%, turbulence intensity by 0.25%, and crop lodging rate by 20-30% under level 8 wind conditions. Conversely, if... Figure 9 The low-profile photovoltaic panels (D) shown are installed vertically without any gaps. Without a wind comb structure, the originally concentrated and powerful wind will not be "combed" into several turbulent streams. This will not reduce the direct impact of the airflow on crops in the field (W) and will not have the beneficial technical effect of wind protection and seedling protection in farmland.

[0011] Preferably, the photovoltaic signboard windbreak belt is characterized by: a second pole (A) (and even a third or fourth pole) being added beside the first pole (B), with a horizontal pole spacing of 0.15-3.25m or 0.15-1.5m between the second pole (A) and the first pole (B); the photovoltaic panel (D) is mounted sideways between the second pole (A) and the first pole (B) using a connector (X), preferably fixed to a beam (C), with one end of the beam (C) fixed to the second pole (A) and the other end fixed to the first pole (B); it can also be directly fixed to the second pole (A) and the first pole (B), thus forming a multi-pole supported photovoltaic signboard array (J). Studies show that the pole spacing is preferably 0.3-1.5m, and most preferably 0.3-0.69m, in a tall, narrow, and long structure. The study also shows that when the pole spacing is less than 0.15m, the width of the photovoltaic panel (D) must also be less than 0.15m. In this case, the overall cost will actually increase. Therefore, it is not recommended to be less than 0.15m.

[0012] Preferably, the photovoltaic stand-up photovoltaic windbreak belt is characterized by the following: numerous stand-up photovoltaic arrays (J) are connected as a whole by transverse cables (F), transverse beams (C), or transverse irrigation pipes (O), for example, by crisscrossing transverse cables (F) or transverse beams (C), to increase overall stability and wind resistance, and reduce pole costs. Preferably, the edge stand-up photovoltaic arrays (J) are equipped with inclined cables (N), and preferably the transverse cables (F) have very low resistance so that they can also be used as grounding wires for lightning rods (E). In this way, numerous stand-up photovoltaic arrays (J) can share the same inclined cable (N), which can enhance the wind resistance of the stand-up photovoltaic arrays (J), reduce the diameter of the second pole (A) and the first pole (B), and actual tests show that it can overcome the disadvantages of existing ground irrigation pipes (O) occupying land and hindering agricultural machinery operations, and can save more than 37.32% of the investment in the supporting structure components. It is best to install a protective net at the lower end of the scenic tree belt (L) to form a protective fence (V).

[0013] Preferably, the photovoltaic windbreak forest belt is characterized in that: the photovoltaic panel (D) is a double-sided photovoltaic panel (D), which is fixed vertically to the south side of the beam (C) and / or the first upright (B) by means of a detachable connector (X), and no second upright (A) is provided to avoid its shadow (P) blocking the sunlight of the double-sided photovoltaic panel (D). The double-sided photovoltaic panel (D) is installed with one side facing east and the other side facing west.

[0014] Preferably, the photovoltaic windbreak belt is characterized in that: the diameter or thickness of the second pole (A) is 1-4 times the thickness of the frame of the double-sided photovoltaic panel (D); the ratio of the diameter or thickness of the second pole (A) located on the south side to the diameter or thickness of the first pole (B) located on the north side is 0.1-0.5. This minimizes the duration for which the second pole (A) blocks sunlight from the double-sided photovoltaic panel (D) at midday, thus avoiding brief periods of power outages at midday.

[0015] Preferably, the photovoltaic sign windbreak forest belt is characterized in that the ratio of sign height (H) to sign width (K) is H / K ≥ 3, 6, 12 or 24, wherein the sign width (K) is preferably 0.3-1.5m and most preferably 0.3-0.69m.

[0016] Preferably, the photovoltaic sign windbreak forest belt is characterized in that: below the photovoltaic array (J), there is a 0.5-3m (preferably 0.8-1.8m) high leg (Y) without photovoltaic panels (D).

[0017] Preferably, the photovoltaic sign windbreak forest belt is characterized in that: multiple photovoltaic sign arrays (J) are connected in series and / or in parallel on the same inverter, thereby forming a photovoltaic power generation system.

[0018] Preferably, the photovoltaic windbreak forest belt is characterized in that: a lightning rod (E) is installed on the top of the photovoltaic array (J) of the photovoltaic sign, and its photovoltaic electrical grounding resistance is ≤10Ω.

[0019] Preferably, the photovoltaic signboard windbreak forest belt is characterized in that: in areas with latitudes below 35°N, the photovoltaic signboard array (J) uses double-sided photovoltaic panels (D), with one side facing east and the other side facing west; or, in areas with latitudes between 35°N and 50°N, in east-west oriented photovoltaic signboard forest belts (L), the photovoltaic panels (D) on the photovoltaic signboard array (J) are installed with their front facing south, and in north-south oriented photovoltaic signboard forest belts (L), the photovoltaic panels (D) on the photovoltaic signboard array (J) are installed with one side facing east and the other side facing west; in this way, the photovoltaic panels (D) can use the maximum windward facade and the best windproof effect to protect seedlings from wind; preferably, an auxiliary forest belt is also planted on the north side of the photovoltaic signboard array (J), or relatively low trees are planted between two adjacent photovoltaic signboard arrays (J).

[0020] Preferably, the photovoltaic windbreak forest belt is characterized in that: the supporting structure component is a high tower constructed by combining multiple uprights and crossbeams and / or inclined beams (to enhance wind resistance). The cross-section of the high tower can be triangular, rectangular, polygonal, or circular, and its photovoltaic panel (D) can be curved or flat.

[0021] Preferably, the photovoltaic windbreak forest belt is characterized in that: the first pole (B) is a tower, the cross-section of which can be triangular, rectangular, polygonal, or circular. The photovoltaic panel (D) can be curved or flat.

[0022] Preferably, the photovoltaic windbreak belt is characterized by: adding one or more rows of photovoltaic windbreak belts (L) within a large field (W). This divides the large field (W) into smaller plots using the photovoltaic windbreak belts (L), preventing wheat stalks in the middle of the field (W) from falling over due to undiminished wind speed. For example, dividing a field (W) with a width ≥ 12 times the height (H) of the windbreak belt (L) into smaller plots can prevent wheat stalks in the middle of the field (W) from falling over. Research shows that the row spacing of the photovoltaic windbreak belts (L) is preferably ≥ 12 times the height (H) of the windbreak belt.

[0023] Preferably, the photovoltaic sign windbreak belt is characterized in that: in the photovoltaic sign windbreak belt (L), the height (H) of two adjacent photovoltaic sign arrays (J) is different to form turbulent flow; or, between two adjacent photovoltaic sign arrays (J), relatively low trees and other plants (U) are planted so that the photovoltaic sign arrays (J) and trees are lined up at intervals and stand in a serrated wind comb structure to form turbulent flow.

[0024] The term "standing" as used in this application includes a slightly tilted (e.g., tilted within 15 degrees) upright state. The term "field" as used in this application refers to farmland, orchards, grasslands, and other land where plants (U) can grow.

[0025] Compared with the prior art, this application has the following significant beneficial technical effects.

[0026] Firstly, the scenic tree-lined area (L) involved in this application can replace, for example... Figure 4The existing windbreak forest belt (G) shown provides wind protection for crops in the field (W). Studies have shown that by using appropriate height-to-width ratios (H / K) and slit-to-tooth ratios (T / K), wind speed in wheat fields (Q) is significantly reduced by 30-50%, straw swaying amplitude is reduced by more than 48%, near-ground turbulence intensity is reduced by more than 51%, lodging loss rate is reduced by more than 20%, and yield increase can reach 8-12%. This fully demonstrates that this application achieves effective photovoltaic power generation while simultaneously providing wind protection for seedlings, achieving a synergistic effect between the two technologies.

[0027] Secondly, the scenic tree-lined windbreak (L) of this application overcomes the inherent drawbacks of the existing windbreak (G). The roots of the trees in the existing windbreak (G) will penetrate into the fields (W), competing with crops for water and fertilizer resources, while the scenic tree-lined windbreak (L) of this application does not have this problem.

[0028] Third, this application has the outstanding advantage of photovoltaics not occupying land, which can effectively save photovoltaic land resources. Compared with the current tree-planted windbreak belt (G) occupying 8-12% of land, the wind and solar windbreak belt (L) does not occupy farmland, which can save at least 8-12% of farmland (W) resources.

[0029] Fourth, the Fengguangpai forest belt (L) of this application has no ecological side effects, will not increase the risk of pests and diseases becoming host parasites, and is conducive to maintaining the stability of farmland ecosystem.

[0030] Fifth, compared with the tree-planted windbreak belt (G), the scenic signboard forest belt (L) of this application solves the problem of seasonal failure. The tree-planted windbreak belt (G) will experience leaf drop in winter, leading to failure of its windbreak function and severe sandstorms, while the scenic signboard forest belt (L) of this application can still play a good role in sand prevention and control in winter.

[0031] Sixth, with Figure 9 Compared to the vertical photovoltaic fence shown, the photovoltaic panels (D) in the standing photovoltaic array (J) can always face south or be installed with one side facing east and the other side facing west, and can be used in combination with fences (V) of any orientation. However, vertical photovoltaics cannot be used in combination with fences (V) of any orientation other than north-south. In other words, vertical photovoltaics are not suitable for making fences that are oriented east-west (or other non-north-south). Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of a stand-up photovoltaic array (J) in this application (Example 1).

[0033] Figure 2 This is a schematic diagram of another stand-up photovoltaic array (J) in this application (Example 2).

[0034] Figure 3This is a schematic diagram of the application scenario in which multiple standing photovoltaic arrays (J) in this application (Example 3) are arranged to form a wind and light photovoltaic forest belt (L).

[0035] Figure 4 This is a schematic diagram of an application scenario where a tree-planted windbreak belt (G) is set up on a current field ridge.

[0036] Figure 5 for Figure 4 A schematic diagram of an application scenario in which multiple tree-planted windbreak belts (G) are replaced with scenic tree-lined forest belts (L) (Example 5).

[0037] Figure 6 for Figure 5 A corner of it.

[0038] Figure 7 This is a schematic diagram of a structure in which a photovoltaic panel (D) is fixed to a beam (C) via a connector (X).

[0039] Figure 8 This is a structural schematic diagram of a current connector (clamp).

[0040] Figure 9 This is a schematic diagram of a vertical photovoltaic fence that cannot produce the effect of a windbreak forest for farmland.

[0041] Figure 10 This is a structural elevation view of a stand-up photovoltaic array (J) in this application.

[0042] Figure 11 This is a schematic diagram of the structure of the two stand-alone photovoltaic arrays (J) in this application.

[0043] Figure 12 This is a schematic diagram of two adjacent photovoltaic arrays (J) of different heights in the same scenic tree forest belt (L) of this application (Example 6).

[0044] Figure 13 This is a schematic diagram of the structure of the two stand-alone photovoltaic arrays (J) in this application (Example 7) after the addition of auxiliary poles (Z).

[0045] Figure 14 This is a schematic diagram of the structure of a stand-up photovoltaic array (J) in this application (Example 8).

[0046] Figure 15 This is a schematic diagram of the structure of a scenic tree belt (L) in this application (Example 9).

[0047] Figure 16 This is a schematic diagram of an application scenario in which a scenic tree belt (L) is set on a field ridge in this application (Example 4).

[0048] Figure 17 This is a schematic diagram of the application scenario in which an irrigation pipe (O) is hung horizontally between two scenic tree belts (L) in this application (Example 10).

[0049] Explanation of the reference numerals: A - First pole, B - Second pole, C - Beam, D - Photovoltaic panel, E - Lightning rod, F - Horizontal cable, G - Tree planting and windbreak belt, H - Sign height (i.e., tooth height), I - Arrangement height, J - Photovoltaic array of signs, K - Sign width (i.e., tooth width), L - Wind and solar signs and forest belt, N - Cable-stayed cable, O - Water pipe, P - Sign shadow, Q - Wheat field, S - Arrangement width, T - Wind duct width (i.e., gap width), U - Plants, V - Fence, W - Field, X - Connector, Y - High leg, Z - Auxiliary pole. Detailed Implementation

[0050] To make the technical means, creative features, objectives and effects of this application easier to understand, the following describes this application in conjunction with specific implementation methods.

[0051] In the description of this application, it should be noted that the terms "upper" and "lower" and other terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0052] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "communication" should be interpreted broadly. For example, "communication" can refer to electrical connection or direct connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0053] Example 1.

[0054] like Figure 1 As shown, a stand-alone photovoltaic array (J) is constructed, having at least a first upright (B). Multiple crossbeams (C) are fixed to the south side of the first upright (B). The length of each crossbeam (C) does not exceed 3m, and is preferably 0.3-0.69m. This allows for the installation of a narrower stand-alone photovoltaic array (J) to reduce the torque of strong winds and minimize the impact of the array's shadow (P) on plant (U) photosynthesis.

[0055] Multiple photovoltaic panels (D) are detachably mounted on a beam (C) using clamps, ferrules, and other photovoltaic connectors (X), with slight tilt (e.g., within 15 degrees) (instead of using the local optimal tilt angle). These panels are arranged vertically along the height of the first pole (B) and electrically connected in series and / or parallel to form a vertically aligned photovoltaic module. In this way, the first pole (B) and the photovoltaic panels (D) constitute a stand-alone photovoltaic array (J), with an overall height (H) of 3-30m, preferably not exceeding 15m. This is because, above 15m, wind resistance increases exponentially, significantly increasing the installation cost of the first pole (B).

[0056] The height (H) of the photovoltaic array (J) is between 3m and 30m, and the width (K) is between 0.15m and 4.25m (preferably between 0.3m and 1.9m). The aspect ratio H / K of the photovoltaic array (J) is ≥1.8, 3, 6, 12, 24, or 98 (preferably 3-24). The height (H) is preferably 4-15m and most preferably 5-10m.

[0057] Ideally, the base of the photovoltaic array (J) should have a 0.5-3m high (Y) shelf without photovoltaic panels (D) to prevent nearby plants (U) from spending too much time in the shade (P) of the array and reducing their photosynthesis. Studies show that the height of the shelf (Y) should ideally be more than 1.63 times the average height of the nearby plants (U).

[0058] Finally, by connecting the vertically arranged photovoltaic modules in multiple stand-up photovoltaic arrays (J) in series and / or in parallel to the same inverter, a photovoltaic power generation system can be formed.

[0059] Example 2.

[0060] like Figure 2 , Figure 10 As shown, a photovoltaic array (J) with at least a first pole (B) and a second pole (A) is constructed.

[0061] Multiple crossbeams (C) are fixed between the second upright (A) and the first upright (B), with the spacing between the crossbeams (C) preferably being 0.3-0.69m. In this way, due to the reinforcement provided by the second upright (A), the signboard photovoltaic array (J) can withstand strong wind torque, so photovoltaic panels (D) approximately 1134mm wide (equivalent to a standard panel) can be used to construct the signboard photovoltaic array (J). Preferably, a high-tower support structure is constructed using multiple uprights, crossbeams, and diagonal beams.

[0062] Multiple photovoltaic panels (D) are detachably mounted sideways (including slightly tilted) on a (cross) beam (C) using (photovoltaic) connectors (X) such as clamps and clamps, and arranged vertically along the height of the first upright (B). These photovoltaic panels (D) are connected in series and / or in parallel to form a vertically arranged photovoltaic module. In this way, the second upright (A), the first upright (B), and the photovoltaic panels (D) constitute a standing photovoltaic array (J). For users in the Northern Hemisphere, the photovoltaic panels (D) can be installed facing south or with one side facing east and the other side facing west.

[0063] Preferably, in regions between 35° and 50° North latitude, the photovoltaic panels (D) on the stand-up photovoltaic array (J) are installed facing south. In regions below 35° North latitude and in regions between 35° and 50° North latitude, double-sided photovoltaic panels (D) are used in the stand-up photovoltaic array (J), with one side facing east and the other side facing west. The dimensions of the double-sided photovoltaic panels (D) are preferably 1134mm × 2382mm. The dimensions of the first pole (B) and the second pole (A) are preferably PHC prestressed cement pipe piles with a diameter of 500mm and a length of 15 meters, buried at a depth of 4 meters, and 11 meters above the ground, i.e., the height (H) of the display is 11 meters.

[0064] The overall height (H) of the photovoltaic array (J) is 3-30m, preferably not exceeding 15m. This is because, above 15m, wind resistance increases exponentially, significantly increasing the installation cost of the first pole (B) and the second pole (A).

[0065] The second pole (A) or the first pole (B) is equipped with a lightning rod (F) at its top, and its photovoltaic electrical grounding resistance is ≤10Ω.

[0066] The ratio of the overall height (H) of the photovoltaic array (J) to the arrangement width (S) of the photovoltaic panels (D) is H / S ≥ 1.8, 3, 6, 12, or 24, wherein the arrangement width (S) is preferably 0.3-1.5m and most preferably 0.3-0.69m.

[0067] Finally, by connecting the photovoltaic panels (D) of multiple stand-alone photovoltaic arrays (J) in series and / or in parallel to the same inverter, a photovoltaic power generation system can be formed.

[0068] Example 3.

[0069] like Figure 3 As shown, referring to the steps in the two examples above, multiple standing photovoltaic arrays (J) can be arranged and combined into a wind and solar photovoltaic forest belt (L), which can be used for wind protection in fields (W) to prevent crops such as wheat from lodging.

[0070] Example 4.

[0071] like Figure 16 As shown in the three examples above, by arranging and combining numerous standing photovoltaic arrays (J) into a wind and light forest belt (L) and placing them along the roadside, they can be used for wind protection in fields (W) to prevent crops such as wheat from lodging.

[0072] Example 5.

[0073] like Figure 5 , Figure 6 As shown, referring to the four examples above, numerous standing photovoltaic arrays (J) can be arranged into wind-blown photovoltaic belts (L) and deployed on field ridges or ditches to protect wheat fields (Q) from wind damage and prevent lodging of wheat and other crops. Figure 5 The scenic forest belt (L) in the middle has replaced Figure 4 The tree-planted windbreak belt (G) in the middle.

[0074] Example 6.

[0075] like Figure 12 As shown in the above embodiments, in the same forest belt (L), the height (H) of two adjacent photovoltaic arrays (J) is different to enhance turbulent flow.

[0076] Example 7.

[0077] like Figure 13 As shown, referring to the above embodiments, an auxiliary pole (Z) is added to the north side of the first upright pole (B) to counteract and balance the huge torque generated by the typhoon on the south side of the double-sided photovoltaic panel (D), thereby enhancing the wind resistance of the stand-alone photovoltaic array (J). The auxiliary pole (Z) can be of varying lengths, ranging from being as long as it is close to the height of the first upright pole (B) to being as short as it is close to the height of the high leg (Y).

[0078] What needs to be commented on here is, such as Figure 9 The low-profile, uninterrupted, stand-alone photovoltaic system shown lacks a windbreak structure due to its continuous, low-profile installation. This prevents the concentrated and powerful winds from being broken up into turbulent currents, thus failing to reduce the direct impact of the airflow on crops in the field (W). Therefore, it does not provide a windbreak effect for farmland and is an undesirable solution.

[0079] Example 8.

[0080] like Figure 11As shown in the above embodiments, the photovoltaic panel (D) is a double-sided photovoltaic panel (D). This double-sided photovoltaic panel (D) is vertically fixed to the south side of the beam (C) and / or the first upright (B) using detachable connectors (X). One side of the double-sided photovoltaic panel (D) faces east, and the other side faces west. This minimizes the chance of obstacles blocking sunlight from the double-sided photovoltaic panel (D) at midday, thus avoiding brief power outages during this time.

[0081] Preferably, such as Figure 14 As shown, the diameter or thickness of the second pole (A) is 1-4 times the thickness of the frame of the double-sided photovoltaic panel (D); the ratio of the diameter or thickness of the second pole (A) located on the south side to the diameter or thickness of the first pole (B) located on the north side is 0.1-0.5. In this way, the duration of the second pole (A) shading the double-sided photovoltaic panel (D) at noon can be minimized, thus minimizing the duration of brief power outages at noon.

[0082] Compared to Figure 14 The technical solution shown Figure 11 The technical solution shown, because it does not use a second pole (A), avoids the phenomenon of the second pole (A) casting its midday shadow on the double-sided photovoltaic panels (D), thus virtually eliminating the problem of brief power outages at midday. In other words... Figure 11 The technical solution shown is the optimal implementation solution.

[0083] Example 9.

[0084] like Figure 15 As shown, referring to the above embodiments, multiple standing photovoltaic arrays (J) are interconnected by interwoven transverse cables (F) and / or beams (C). Preferably, the edge standing photovoltaic arrays (J) are equipped with inclined cables (N). It is preferable that the resistance of the transverse cables (F) is very low so that they can also be used as grounding wires for lightning rods (E). It is preferable to install a protective net at the lower end of the photovoltaic tree belt (L) to form a protective fence (V), allowing the first pole (B) or the second pole (A) to also serve as the posts of the fence (V), achieving shared support and reducing overall costs. This enhances the wind resistance of the standing photovoltaic arrays (J), reduces the diameter of the second pole (A) and the first pole (B), and tests show that it saves more than 37.32% of the investment in the supporting structure components.

[0085] Example 10.

[0086] like Figure 17As shown in the above embodiments, a horizontal cable (F) and a horizontal irrigation pipe (O) are suspended between the two photovoltaic arrays (L) on both sides. This interconnects multiple photovoltaic arrays (J) to enhance stability and elevates the irrigation pipe (O) from the ground to the air, providing aerial irrigation (including pesticide and fertilizer spraying) to the farmland. This overcomes the shortcomings of current ground irrigation pipes (O) that occupy a large amount of land and severely hinder agricultural machinery operations.

[0087] Research shows that only the integrated innovative application system of this application, which combines wind protection, seedling protection, photovoltaic power generation, and aerial irrigation, has comprehensive cost advantages and commercial promotion value.

[0088] The above-disclosed embodiments are merely preferred embodiments of this application. The accompanying drawings are only schematic diagrams and are not drawn to scale. They cannot be used to limit the scope of this application. Equivalent variations made based on the claims of this application still fall within the scope of this application.

Claims

1. A photovoltaic windbreak forest belt with signposts, characterized in that, It includes: a stand-alone photovoltaic array (J) assembled from supporting structural components and vertically arranged photovoltaic modules; The supporting structure assembly consists of an erected first upright (B), and beams (C) and / or connectors (X) fixed to the first upright (B); The longitudinally arranged photovoltaic modules consist of photovoltaic panels (D) that are erected on their sides and arranged longitudinally along the first upright (B). These photovoltaic panels (D) are fixed to the beam (C) and / or the first upright (B) by connectors (X). The width (S) of these photovoltaic panels (D) ranges from 0.15m to 3.25m, and the height (I) of these photovoltaic panels (D) ranges from 0.69m to 30m. These photovoltaic panels (D) are electrically connected in series and / or in parallel. The standing photovoltaic array (J) is composed of the supporting structure component and the vertically arranged photovoltaic components installed on it; the height (H) of the standing photovoltaic array (J) ranges from 1.5m to 30m, the width (K) of the standing photovoltaic array (J) ranges from 0.15m to 4.25m, and the height-to-width ratio H / K of the standing photovoltaic array (J) is ≥1.8 or 3; The numerous standing photovoltaic arrays (J) are arranged in rows with wind tunnel widths (T) ranging from 0.65m to 18m, forming a slatted wind comb structure. They are firmly erected on field ridges, field edges, field road edges, or field ditches, thus forming a wind-solar forest belt (L) that provides wind protection and seedling protection for crops in the field (W) while also generating photovoltaic power.

2. The photovoltaic windbreak forest belt according to claim 1, characterized in that: The duct width (T) ranges from 0.65m to 9m, or from 0.65m to 6m; the slot ratio T / K ranges from 0.25 to 12.5, or from 0.40 to 3.15, or from 0.25 to 0.

75.

3. The photovoltaic windbreak forest belt according to claim 1, characterized in that: A second pole (A) is added to the side of the first pole (B); the photovoltaic panel (D) is fixed between the second pole (A) and the first pole (B) by a connector (X), thereby forming a multi-pole supported photovoltaic array (J).

4. The photovoltaic windbreak forest belt according to claim 1, 2, or 3, characterized in that: Numerous standing photovoltaic arrays (J) are connected by transverse cables (F), transverse beams (C), or transverse irrigation pipes (O); or / and protective netting is installed at the lower end of the photovoltaic array (L) to form a protective fence (V).

5. The photovoltaic windbreak forest belt according to claim 1, 2, or 3, characterized in that: The photovoltaic panel (D) is a double-sided photovoltaic panel (D), which is fixed vertically to the south side of the beam (C) and / or the first upright (B) by means of a detachable connector (X). The double-sided photovoltaic panel (D) is installed with one side facing east and the other side facing west.

6. The photovoltaic windbreak forest belt according to claim 1, characterized in that: The diameter or thickness of the second pole (A) is 1 to 4 times the thickness of the frame of the double-sided photovoltaic panel (D); or, the ratio of the diameter or thickness of the second pole (A) located on the south side to the diameter or thickness of the first pole (B) located on the north side is 0.1 to 0.

5.

7. The photovoltaic windbreak forest belt according to claim 1, characterized in that: Below the standing photovoltaic array (J), there is a 0.5-3m high leg (Y) without photovoltaic panels (D).

8. The photovoltaic windbreak forest belt according to claim 1, characterized in that: The photovoltaic sign array (J) uses double-sided photovoltaic panels (D), with one side facing east and the other side facing west. Alternatively, in the region between 35° and 50° north latitude, in the east-west oriented wind and solar sign forest belt (L), the photovoltaic panels (D) on the photovoltaic sign array (J) are installed with one side facing south, and in the north-south oriented wind and solar sign forest belt (L), the photovoltaic panels (D) on the photovoltaic sign array (J) are installed with one side facing east and the other side facing west.

9. The photovoltaic windbreak forest belt according to claim 1, characterized in that: In a large field (W), one or more rows of scenic signs and tree belts (L) are added.

10. The photovoltaic windbreak forest belt according to claim 1, characterized in that: In the Fengguangpai forest belt (L), the height (H) of two adjacent standing photovoltaic arrays (J) is different to create turbulent flow; or, between two adjacent standing photovoltaic arrays (J), relatively low trees are planted so that the standing photovoltaic arrays (J) and trees are lined up at intervals and stand in a slit-like wind comb structure to create turbulent flow.

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