Interval stand-board agriculture and light complementation method

Abstract

The invention provides an interlaced vertical board agriculture and light complementation method. The interlaced vertical board agriculture and light complementation method comprises a vertical rod and a beam or / and a connecting piece; a plurality of photovoltaic panels are laterally fixed on the vertical rods or / and the beams through connecting pieces, so that a photovoltaic vertical board unit is formed; planting spaces for growth of crops or woods or pasture are formed in the row spacing or the spacing of the photovoltaic vertical board units. Stay cables do not need to be used, construction is easy, cost is low, pile foundations are buried shallowly, damage to soil structures and plant root systems can be avoided as much as possible, construction difficulty and cost can be reduced, and complementary benefits of photovoltaic power generation and agricultural production can be improved.

Description

Technical Field

[0001] This application belongs to the technical field of agricultural and photovoltaic complementary, and specifically relates to an interplanting and standing sign agricultural and photovoltaic complementary method for the collaborative layout of a photovoltaic power generation system and a crop planting space, especially a photovoltaic agriculture integration method that uses a towering side-standing photovoltaic panel array and interplanting with crops. Background Art

[0002] Existing agricultural and photovoltaic complementary technologies are mainly divided into three types: one is the low bracket type (the height of the horizontally placed photovoltaic panel is usually < 3 meters), the second is the flat single-axis tracking type, and the third is the high-altitude suspension type. The low bracket type, although simple in structure, seriously affects mechanized farming, and the shadow moves slowly, affecting the photosynthesis of crops and reducing crop yields; the flat single-axis tracking type is costly and difficult to maintain; the high-altitude suspension type is the applicant's prior application "Method for Photovoltaic Power Generation at High Altitude in Cultivated Land and Photovoltaic Power Generation Suspension Cable (CN117792235B)", which provides a method for photovoltaic power generation at high altitude in cultivated land and a photovoltaic power generation suspension cable. It lays a photovoltaic cell layer around a horizontally suspended load-bearing cable with high tensile strength to fabricate a photovoltaic power generation suspension cable, and erects the photovoltaic power generation suspension cable above the cultivated land through towering supports. On the one hand, it absorbs the surplus solar energy in the high altitude for power generation, and on the other hand, it can also be used for water conveyance and irrigation, spraying of chemical fertilizers, and spraying of pesticides by the way, realizing the complementary development of agricultural production and photovoltaic power generation - agricultural and photovoltaic complementarity.

[0003] After actual measurement, only a photovoltaic power generation suspension cable with a span greater than 200 meters and a diameter of 0.2 - 0.3 meters has better complementary benefits of photovoltaic power generation and agricultural production. However, under a 6 - level wind condition, the dynamic load borne by its stay cable can reach 50 - 60 tons. Therefore, it requires reinforced concrete pillars with a diameter of 0.8 - 1.2 meters, and the concrete consumption of a single pillar foundation is 15 - 20 cubic meters, with an excavation depth of 8 - 10 meters. It also must use stay cables, which are likely to damage the soil structure and root ecosystem, and its construction is difficult and costly. Summary of the Invention

[0004] The purpose of this application: To provide an interplanting and standing sign agricultural and photovoltaic complementary method to avoid causing greater damage to the soil structure and root ecosystem, so as to reduce the construction difficulty and cost, and to improve the complementary benefits of photovoltaic power generation and agricultural production.

[0005] To achieve the above invention purpose, an interplanting and standing sign agricultural and photovoltaic complementary method provided by this application is as follows.

[0006] This application provides an interplanting and standing sign agricultural and photovoltaic complementary method, which is characterized in that it includes the following steps: ① Manufacture a support structure assembly - Install some upright first vertical poles (B) at certain intervals in the field, and arrange and fix some beams (C) or / and connectors (X) along the first vertical poles (B) up and down; among them, the beam spacing (I) is preferably 0.3 - 3 meters. ② Manufacture a photovoltaic power generation component - Stand multiple photovoltaic panels (D) upright (not installed at the optimal inclination angle, but including a nearly vertical upright installation with an inclination angle greater than 80 degrees), arrange them up and down along the first vertical poles (B), and fix them to the cross beams (C) or / and the first vertical poles (B) with connectors (X). Among them, the arrangement width (S) of the photovoltaic panels (D) ranges from 0.15 meters to 3.25 meters, and is preferably not greater than the length of a common photovoltaic panel, which is 2.382 meters, or the width, which is 1.134 meters. In this way, the width of the shadow (P) can be minimized, and the impact on the photosynthesis of plants (U) can be reduced. ③ Manufacture a photovoltaic sign unit (J) - Use the first vertical poles (B), beams (C) or / and connectors (X), and photovoltaic panels (D) with a width of S to fabricate a single - column - supported photovoltaic sign unit (J); among them, the height (H) of the photovoltaic sign unit (J) is 3 meters to 30 meters, preferably 4 - 15 meters, and most preferably 5 - 10 meters. Preferably, the height - width ratio H / S ≥ 1.8 or 3 or 6 or 12 or 24. ④ Inter - cropping - Arrange multiple photovoltaic sign units (J) in the field at intervals with a row (L) ≥ 4 meters and a spacing (T) ≥ 0.5 meters; in this way, natural wind and sunlight can pass through smoothly, thereby reducing wind resistance and the impact of the shadow (P) on the photosynthesis of plants (U); leave a planting space for the growth of crops, forests, or forage between adjacent photovoltaic sign units (J), and make the daily average light transmittance of this planting space ≥ 25%. In other words, make the photovoltaic sign unit (J) block at most only one - quarter of the sunlight, and leave at least three - quarters of the sunlight for the plants (U) in the field.

[0007] The reason for requiring the (overall) height (H) of the photovoltaic sign unit (J) to be preferably set at 5 - 10 meters and H / S ≥ 6 is to reduce the width of the photovoltaic sign unit (J), increase the moving speed of the shadow (P) of the photovoltaic sign unit (J), shorten the residence time of the shadow (P) on the same plant (U), and leave enough light duration for the normal growth of plants (U); ensure that the shadow (P) of the photovoltaic sign unit (J) blocks the sunlight irradiating the plants (U) every once in a while (for example, every 10 - 90 minutes), [the time for blocking one plant (U) does not exceed 30 minutes / time and is not less than 3 minutes / time], and continuously block, release, block again, and release again to perform intermittent lighting to stimulate the growth of plants (U).

[0008] Preferably, the intercropped sign-type agricultural and photovoltaic complementary method is characterized in that: a second vertical rod (A) is added beside the first vertical rod (B), and the horizontal rod distance (G) between the second vertical rod (A) and the first vertical rod (B) is 0.15 - 3.25 meters or 0.15 - 1.5 meters; the photovoltaic panel (D) is vertically installed between the second vertical rod (A) and the first vertical rod (B) by a connector (X), preferably fixed on a beam (C), one end of the beam (C) is fixed on the second vertical rod (A), and the other end is fixed on the first vertical rod (B); it can also be directly fixed on the second vertical rod (A) and the first vertical rod (B), thereby manufacturing a photovoltaic sign unit (J) supported by multiple columns. The reason for requiring the horizontal rod distance (G) between the second vertical rod (A) and the first vertical rod (B) to be 0.15 - 3.25 meters is to reduce the width of the photovoltaic sign unit (J), so as to reduce wind resistance, ensure air flow, reduce the shading rate, increase the light transmittance of the planting space, and leave enough sunlight for the normal growth of plants (U); research shows that the rod distance (G) is preferably 0.3 - 1.5 meters, and most preferably 0.3 - 0.69 meters. Research also shows that when the rod distance (G) is less than 0.15 meters, the width of the photovoltaic panel (D) must also be less than 0.15 meters, and the comprehensive cost will instead increase. Therefore, it is not recommended to be less than 0.15 meters.

[0009] Preferably, the intercropped sign-type agricultural and photovoltaic complementary method is characterized in that: the ratio of the height (H) to the row spacing (L) of the photovoltaic sign unit (J) is H / L ≤ 0.28. In this way, when the solar altitude angle in the morning and evening is greater than 15 degrees, it can be ensured that the longest shadow (P) of the photovoltaic sign unit (J) will not be projected onto the adjacent photovoltaic sign unit (J) to cause the hot spot effect.

[0010] Preferably, the intercropped sign-type agricultural and photovoltaic complementary method is characterized in that: the ratio of the (overall) height (H) of the photovoltaic sign unit (J) to the width (S) of the photovoltaic panel (D) is H / S ≥ 3 or 6 or 12 or 24, where the arrangement width (S) is preferably 0.3 - 1.5 meters, and most preferably 0.3 - 0.69 meters. In this way, the width of the photovoltaic sign unit (J) can be reduced, the moving speed of the shadow (P) of the photovoltaic sign unit (J) can be increased, the residence time of the shadow (P) on the same plant (U) can be shortened, it can be ensured that the residence time of a shadow (P) on the same plant (U) does not exceed 27 minutes (preferably an average of no more than 19 minutes), and enough light duration for the normal growth of plants (U) can be left.

[0011] Preferably, the intercropped sign-type agricultural and photovoltaic complementary method is characterized in that: the photovoltaic sign unit (J) stands on the north side of the plot and on the south side of a road or a ridge or a ditch, and its shadow (P) is projected onto non-cultivated areas such as roads or ridges or ditches outside the field.

[0012] Preferably, the method for complementary utilization of agricultural light with spaced and nested vertical signs is characterized in that: below the photovoltaic vertical sign unit (J), there is a high foot (Y) with a length of 0.5 - 3 meters and no photovoltaic panel (D), so as to prevent the plants (U) nearby from having reduced photosynthesis and slowed growth rate due to being in the shadow (P) for a long time, and to prevent the plants (U) from forming a shadow (P) on the photovoltaic panel (D) at a low position, thus causing the hot spot effect; among them, the height of the high foot (Y) is greater than the plant height of the plants (U) nearby.

[0013] Preferably, the method for complementary utilization of agricultural light with spaced and nested vertical signs is characterized in that: in the air between two adjacent photovoltaic vertical sign units (J), an irrigation water pipe (K) or / and a suspension cable (F) are horizontally hung, and among them, the (horizontally hung) suspension cable (F) is also used to (replace the current stay cable) hold the photovoltaic vertical sign unit (J) to resist wind force, stabilize the structure, and prevent the use of stay cables from interfering with agricultural machinery operations; or, an irrigation water pipe (K) and its nozzle (Z) are connected to the photovoltaic vertical sign unit (J) to spray the irrigation water (W) from a high place to the surroundings, so that each nozzle (Z) can cover a sufficiently large irrigation area.

[0014] Preferably, the method for complementary utilization of agricultural light with spaced and nested vertical signs is characterized in that: a cleaning nozzle (Z) (for example, partially facing the photovoltaic panel) communicating with the irrigation water pipe (K) is connected to the photovoltaic vertical sign unit (J), and this cleaning nozzle (Z) is used to spray water to clean the photovoltaic panel (D) and spray water to cool the photovoltaic panel (D). In this way, on the one hand, the photovoltaic panel (D) can be automatically cleaned, and on the other hand, the photovoltaic panel (D) can be cooled, thus achieving three goals with one action and achieving multiple purposes such as irrigation, cleaning, and cooling and increasing efficiency.

[0015] Preferably, the method for complementary utilization of agricultural light with spaced and nested vertical signs is characterized in that: the photovoltaic panels (D) between multiple photovoltaic vertical sign units (J) are connected in series or / and in parallel to an inverter, and then a photovoltaic power generation system is formed.

[0016] Preferably, the method for complementary utilization of agricultural light with spaced and nested vertical signs is characterized in that: a lightning rod (E) is provided on the top of the photovoltaic vertical sign unit (J), and its grounding resistance ≤ 10Ω.

[0017] Preferably, the method for complementary utilization of agricultural light with spaced and nested vertical signs is characterized in that: in the area of 35° - 50° north latitude, the photovoltaic panel (D) on the photovoltaic vertical sign unit (J) is installed vertically with the front facing south; or, in the area with a north latitude lower than 35°, double-sided photovoltaic panels (D) are used in the photovoltaic vertical sign unit (J), and one side faces east and the other side faces west and is installed vertically.

[0018] Preferably, the method for complementary use of solar and agriculture with spaced and nested vertical signs is characterized in that: the photovoltaic vertical sign unit (J) is a tower structure formed by combining multiple columns with crossbeams and / or diagonal beams to enhance the wind resistance.

[0019] As used in this application, "spaced and nested" specifically refers to the collaborative layout in space between photovoltaic facilities and agricultural, forestry, and animal husbandry production. As used in this application, "field" generally refers to land such as agricultural land, forest land, and grassland where plants (U) can grow.

[0020] Compared with the prior art, this application has the following beneficial technical effects.

[0021] First, through testing, this application compared with the high-altitude suspension type (CN117792235B): especially by canceling the wide-width photovoltaic power generation suspension cable with a diameter of 0.2 - 0.3 meters and changing it to a narrow-width non-power generation suspension cable (F) and water pipe (K) with a diameter less than 15.2 millimeters, the wind resistance is reduced by more than ten times, the basic project quantity is reduced by more than 80%, the concrete consumption is reduced from the original 15 m³ / column to 3 m³ / column; the wind resistance capacity is greatly improved; the power generation efficiency is increased by 12 - 18%, benefiting from active cooling; the crop yield can reach 85 - 110% of that of open-field planting, significantly better than 30 - 60% of traditional solar and agriculture complementary.

[0022] Through testing, the photovoltaic vertical sign unit (J) and its photovoltaic panel (D) in this application hardly shake in winds below level 6, and the electricity generated is stable without fluctuations. While the photovoltaic power generation suspension cable (CN117792235B) and its photovoltaic panel (D) shake greatly in winds below level 6, the electricity generated is unstable and fluctuates greatly, making it difficult to meet the requirements for grid connection.

[0023] Second, the second vertical pole (A) and the first vertical pole (B) compared with the "tall support" in the background art do not require guy wires, are easy to construct, have low costs, and the pile foundation is buried shallowly, thus having little impact on the forest land ecosystem.

[0024] Third, the photovoltaic vertical sign unit (J) stands tall and upright, its photovoltaic panel (D) is easy to automatically spray water for cleaning, dust removal, and cooling, the moving speed of its shadow (P) is fast, the residence time on the same plant (U) is short, and it can leave enough light duration required for the normal growth of plants (U).

[0025] Fourthly, compared with the cylindrical photovoltaic pole (such as the photovoltaic pole in a kind of photovoltaic street lamp CN212137364U), the photovoltaic sign unit (J) can use inexpensive rigid photovoltaic panels (D), while the cylindrical photovoltaic pole must use expensive flexible photovoltaic modules or arc-shaped photovoltaic modules twice as much. For example, the current market price of the rigid photovoltaic panel (D) is about 0.7 yuan per watt, while for the cylindrical photovoltaic pole with the same bending radius, the current market price of the flexible photovoltaic modules and arc-shaped photovoltaic modules it needs to use is about 2.6 yuan per watt. Compared with the two, the photovoltaic panel (D) in this application is several times cheaper (2×2.6 / 0.7 = 7.4).

[0026] Fifthly, compared with the current low brackets, the photovoltaic sign unit (J) does not occupy land and can be installed wherever there is a gap, such as on the ridges, ditches, and roadsides, without interfering with agricultural machinery operations. By adjusting preset parameters such as the height-width ratio H / S and the space-width ratio T / S, the standing photovoltaic sign unit (J) generates intermittent light required to stimulate the growth of plants (U), thereby increasing crop yields and improving the ecological environment. In other words, by setting the photovoltaic sign unit (J) in the field and adjusting its height-width ratio H / S and space-width ratio T / S, this application obtains another type of intermittent light that is different from the existing horizontal photovoltaic power generation suspension cables and has a lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the interplanting layout of two photovoltaic sign units (J) in this application (Example 1).

[0028] Figure 2 It is a schematic diagram of the interplanting layout of two photovoltaic sign units (J) in this application (Example 2).

[0029] Figure 3 It is a schematic diagram of the interplanting layout of many photovoltaic sign units (J) in this application (Example 3).

[0030] Figure 4 It is a schematic diagram of the interplanting layout of four photovoltaic sign units (J) in a row in this application (Example 4).

[0031] Figure 5 For Figure 4 It is a schematic diagram of the interplanting layout of twelve photovoltaic sign units (J) in

[0032] Explanation of the reference numerals in the drawings: A - the first vertical pole, B - the second vertical pole, C - the beam, D - the photovoltaic panel, E - the lightning rod, F - the suspension cable, G - the pole distance, H - the height, I - the beam distance, J - the photovoltaic sign unit, K - the irrigation water pipe, L - the row spacing, T - the spacing, S - the width, W - the irrigation water, X - the connecting piece, Y - the high foot, Z - the spray (water) nozzle, U - the plant, P - the shadow. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] To make the technical means, creative features, achieved objectives and effects realized by this application easy to understand, the following further elaborates this application in combination with specific implementation manners.

[0034] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this application.

[0035] It should be noted that unless otherwise clearly specified and defined, terms such as "installation", "connection", "communication", etc. should be understood in a broad sense. For example, "communication" can be electrical communication or direct connection. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] Embodiment 1.

[0037] As Figure 1 shown, in a piece of arable land of thousands of mu (such as wheat fields, vegetable fields, corn fields, orchards or grasslands), a row of photovoltaic sign units (J) with at least one first vertical pole (B) standing upright is installed in the north-south direction. A plurality of (horizontal) beams (C) are fixed on the south side of the first vertical pole (B), and the spacing between the (horizontal) beams (C) is 0.15 - 3 meters, preferably 0.3 - 0.69 meters. In this way, the torque of strong wind will be reduced because the photovoltaic sign unit (J) is relatively narrow, making it easy to be stable. In this way, the influence of the shadow (P) on the photosynthesis of the plants (U) will also be reduced.

[0038] A plurality of photovoltaic panels (D) are detachably installed on the cross beam (C) in a side-standing manner through (photovoltaic) connecting pieces (X) such as pressing blocks and hoop clamps (instead of installing at the local best inclination angle), and are arranged up and down along the height direction of the first vertical pole (B). In this way, the first vertical pole (B) and the photovoltaic panel (D) constitute a photovoltaic sign unit (J), and the (overall) height (H) of the photovoltaic sign unit (J) is 3 - 30 meters, preferably not higher than 15 meters. This is because when it is higher than 15 meters, the wind resistance increases geometrically, and the installation cost of the first vertical pole (B) will increase significantly.

[0039] The photovoltaic sign unit (J) is interplanted with the plants (U), and the row spacing (L) of the photovoltaic sign unit (J) is preferably 0.5 - 50 meters; a planting space for crops, forest trees or forage grass is formed within the row spacing (L) or the spacing (T), and the daily average light transmittance of the ground in the planting space is preferably ≥25%.

[0040] The ratio H / S of the (overall) height (H) of the photovoltaic sign unit (J) to the width (S) of the photovoltaic panel (D) is H / S ≥ 1.8 or 3 or 6 or 12 or 24 or 48, where the width (S) is preferably 0.3 - 1.5 meters, and most preferably 0.3 - 0.69 meters. In this way, the width of the photovoltaic sign unit (J) can be reduced, the moving speed of the shadow (P) of the photovoltaic sign unit (J) can be increased, the staying time of one shadow (P) on the same plant (U) can be shortened, and sufficient light duration required for the normal growth of the plant (U) can be left.

[0041] Below the photovoltaic sign unit (J), it is preferably provided with a high foot (Y) of 0.5 - 3 meters without a photovoltaic panel (D) (not blocking sunlight) to prevent the plants (U) nearby from staying in the shadow (P) for a long time, reducing photosynthesis and slowing down the growth rate.

[0042] Finally, the photovoltaic panels (D) between multiple photovoltaic sign units (J) are connected in series or / and in parallel to an inverter, and a photovoltaic power generation system can be formed.

[0043] The applicant conducted the following experiment in the wheat planting area (latitude 36°) of the North China Plain: a photovoltaic sign unit (J) with a height H = 15 meters was used; the width S of the photovoltaic panel (D) was 0.6 meters, and H / S = 25; the beam spacing I was 0.5 meters, and a total of 30 layers of photovoltaic panels (D) were installed; the row spacing L was 20 meters, so as to ensure that the shadow (P) coverage rate on the winter solstice was < 40%. The experiment showed that the wheat grew well, better than 92% of the control field.

[0044] Embodiment 2.

[0045] As Figure 2 shown, in a cultivated land of thousands of mu (such as a wheat field, a vegetable field, a corn field, an orchard, or a grassland), rows of photovoltaic sign units (J) with a first vertical pole (B) and a second vertical pole (A) standing upright are installed along the north-south direction.

[0046] A plurality of (horizontal) beams (C) are vertically fixed between the second vertical pole (A) and the first vertical pole (B), and the spacing of the (horizontal) beams (C) is preferably 0.3 - 3 meters. In this way, due to the reinforcement effect of the second vertical pole (A), the photovoltaic sign unit (J) can resist a strong wind torque, so a photovoltaic panel (D) slightly wider than the standard board width of 1134 mm can be used to build the photovoltaic sign unit (J).

[0047] A plurality of photovoltaic panels (D) are detachably installed on a (horizontal) beam (C) in a side-standing manner through photovoltaic connectors (X) such as clamping blocks and hoop clamps, and are arranged vertically along the height direction of the first vertical pole (B). In this way, the second vertical pole (A), the first vertical pole (B), and the photovoltaic panel (D) form a photovoltaic sign unit (J). Among them, for users in the northern hemisphere, the photovoltaic panel (D) can face south directly, or a double-sided photovoltaic panel (D) can be used with one side facing east and the other side facing west for installation.

[0048] Preferably, in the area between 35° and 50° north latitude, the photovoltaic panel (D) on the photovoltaic sign unit (J) is installed in a side-standing manner with the front side facing south; in the area with a latitude lower than 35° north latitude, a double-sided photovoltaic panel (D) is used in the photovoltaic sign unit (J), and it is installed in a side-standing manner with one side facing east and the other side facing west.

[0049] The (overall) height (H) of the photovoltaic sign unit (J) is 3 - 30 meters, and it is preferably not higher than 15 meters. This is because when it is higher than 15 meters, the wind resistance increases geometrically, and the installation costs of the first vertical pole (B) and the second vertical pole (A) will increase significantly.

[0050] The photovoltaic sign unit (J) is arranged in an intercropping manner with plants (U), and its row spacing (L) is preferably 4 - 60 meters.

[0051] A lightning rod (F) is provided at the top of the second vertical pole (A) or the first vertical pole (B), and its grounding resistance ≤ 10Ω.

[0052] The ratio H / S of the overall height (H) of the photovoltaic sign unit (J) to the width (S) of the photovoltaic panel (D) is H / S ≥ 1.8 or 3 or 6 or 12 or 24 or 48, where the width (S) is preferably 0.3 - 1.5 meters and most preferably 0.3 - 0.69 meters. In this way, the width and density of the photovoltaic sign unit (J) can be reduced, the moving speed of the shadow (P) of the photovoltaic sign unit (J) can be increased, the residence time of the shadow (P) on the same plant (U) can be shortened, and sufficient light duration required for the normal growth of the plant (U) can be left. After retrieval, there is no technical solution in the prior art that arranges photovoltaic panels in a tall side-standing manner and collaboratively arranges them with the agricultural and forestry planting space according to specific geometric relationships. The innovation point of this application lies not only in the structure itself, but more importantly, through precise spatial parameter design, the collaborative optimization of photovoltaic power generation and planting is achieved.

[0053] Finally, the photovoltaic panels (D) between multiple photovoltaic sign units (J) are connected in series or / and in parallel to an inverter, and a photovoltaic power generation system can be formed.

[0054] Embodiment III.

[0055] As Figure 3As shown in the figure, referring to the above two example steps, in the air between the photovoltaic sign units (J), a suspension cable (F) and an irrigation water pipe (K) are respectively hung horizontally, and the irrigation water pipe (K) is supported by the suspension cable (F). In this way, while generating photovoltaic power, water (W) can also be sprayed for irrigation of the plants (U) in the cultivated land. Among them, the horizontally hung suspension cable (F) is also used to pull the photovoltaic sign units (J) (instead of the current stay cables) to resist wind force, stabilize the structure, and avoid interfering with agricultural machinery operations due to the use of stay cables.

[0056] Embodiment 4.

[0057] As Figure 4 , Figure 5 As shown in the figure, referring to the above three examples, a large number of photovoltaic sign units (J) and plants such as trees (U) are arranged in an intercropping manner. Preferably, a cleaning nozzle (Z) communicating with the irrigation water pipe (K) is connected to the photovoltaic sign unit (J), and water is sprayed on the conventional photovoltaic panel (D) for cleaning and cooling the photovoltaic panel (D) to improve the power generation efficiency. In this way, on the one hand, the photovoltaic panel (D) can be automatically cleaned, and on the other hand, the photovoltaic panel (D) can be cooled, achieving multiple purposes of irrigation, cleaning, and cooling for efficiency improvement.

[0058] The above-disclosed are only the preferred embodiments of the present application. The drawings are only schematic diagrams of the structure and are not drawn according to the actual size ratio, and cannot be used to limit the scope of rights of the present application. Equivalent changes based on the claims of the present application still fall within the scope covered by the present application.

Claims

1. A method for interplanting and photovoltaic complementation of Lipai, characterized in that: It includes the following steps: ①Manufacture a supporting structure component—— A number of first vertical poles (B) are installed at certain intervals in the field, and a number of beams (C) and / or connecting members (X) are arranged and fixed up and down along the first vertical poles (B); ②Manufacture a photovoltaic power generation component—— The plurality of photovoltaic panels (D) are placed sideways, arranged vertically along the first vertical pole (B), and fixed to the beam (C) or / and the first vertical pole (B) by a connecting member (X), wherein the arrangement width (S) of the photovoltaic panels (D) ranges from 0.15 meters to 3.25 meters; ③Manufacture a photovoltaic sign unit (J)—— A photovoltaic signboard unit (J) is manufactured by combining a first vertical pole (B), a beam (C) or / and a connecting member (X), and a photovoltaic panel (D) with a width of S; wherein the height (H) of the photovoltaic signboard unit (J) is 3 meters to 30 meters; ④ Intercropping Multiple photovoltaic signboard units (J) are arranged in the field with a row spacing (L) ≥ 4 meters and a spacing (T) ≥ 0.5 meters; between adjacent photovoltaic signboard units (J), a planting space for the growth of crops, trees or forage is reserved.

2. The interplanting and photovoltaic complementary method according to claim 1 is characterized by: A second vertical pole (A) is added beside the first vertical pole (B), and the horizontal pole distance (G) between the second vertical pole (A) and the first vertical pole (B) is 0.15-3.25 meters or 0.15-1.5 meters; a photovoltaic panel (D) is fixed between the second vertical pole (A) and the first vertical pole (B) by a connecting piece (X), thereby manufacturing a photovoltaic signboard unit (J) supported by multiple columns.

3. The interplanting and paving agriculture-photovoltaic complementary method according to claim 1 is characterized by: The ratio of the height (H) of the photovoltaic signboard unit (J) to its row spacing (L) is H / L≤0.

28.

4. The interplanting and paving agriculture-photovoltaic complementary method according to claim 1 is characterized in that: The photovoltaic signboard unit (J) stands on the north side of the plot and is located on the south side of the road, ridge or ditch, and its shadow is projected on the road, ridge or ditch outside the field.

5. The interplanting and photovoltaic complementary method according to claim 1 is characterized in that: A section of 0.5-3 meters of high legs (Y) without photovoltaic panels (D) is reserved below the photovoltaic stand unit (J) to prevent nearby plants (U) from being in the shadow for a long time, which would lead to reduced photosynthesis and slower growth, and to prevent the plants (U) from casting shadows on the low photovoltaic panels (D) and causing hot spot effects; wherein the height of the high legs (Y) is greater than the height of the nearby plants (U).

6. The interplanting and lipai agriculture-photovoltaic complementary method according to claim 1, 2, 3, 4 or 5, characterized in that: An irrigation pipe (K) and / or a suspension cable (F) are hung horizontally in the air between two adjacent photovoltaic stand units (J); or an irrigation pipe (K) and its nozzle (Z) are connected to the photovoltaic stand unit (J).

7. The interplanting and paving agriculture-photovoltaic complementary method according to claim 6 is characterized by: A cleaning nozzle (Z) connected to the photovoltaic signboard unit (J) is connected to the irrigation water pipe (K). The cleaning nozzle (Z) is used to spray water to clean the photovoltaic panel (D) and spray water to cool the photovoltaic panel (D).

8. The interplanting and photovoltaic complementary method according to claim 1, 2, 3, 4 or 5, characterized in that: The photovoltaic panels (D) between the multiple photovoltaic sign units (J) are connected in series or / and in parallel to an inverter, thereby forming a photovoltaic power generation system; a lightning rod (E) is arranged on the top of the photovoltaic sign unit (J), and its grounding resistance is ≤10Ω.

9. The interplanting and photovoltaic complementary method according to claim 1, 2, 3, 4 or 5, characterized in that: In areas between 35° and 50° north latitude, the photovoltaic panels (D) on the photovoltaic signboard unit (J) are installed sideways with the front side facing south; or, in areas below 35° north latitude, a double-sided photovoltaic panel (D) is used in the photovoltaic signboard unit (J), and one side faces east and the other side faces west.

10. The interplanting and paving agriculture-photovoltaic complementary method according to claim 1, 2, 3, 4 or 5, characterized in that: The photovoltaic signboard unit (J) is a tower structure composed of a plurality of columns and cross beams and / or inclined beams.

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