CN120601838A - T-shaped photovoltaic cable power generation yield increasing method - Google Patents

T-shaped photovoltaic cable power generation yield increasing method

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Publication number
CN120601838A
CN120601838A CN202510811395.1A CN202510811395A CN120601838A CN 120601838 A CN120601838 A CN 120601838A CN 202510811395 A CN202510811395 A CN 202510811395A CN 120601838 A CN120601838 A CN 120601838A
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CN
China
Prior art keywords
photovoltaic
cable
shaped
shaped photovoltaic
power generation
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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CN202510811395.1A
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Chinese (zh)
Inventor
陈明发
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Sanya Jacket Photovoltaic Technology Co ltd
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Sanya Jacket Photovoltaic Technology Co ltd
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Publication of CN120601838A publication Critical patent/CN120601838A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/50—Arrangement of stationary mountings or supports for solar heat collector modules comprising elongate non-rigid elements, e.g. straps, wires or ropes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/20—Supporting structures directly fixed to an immovable object
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/20—Optical components
    • H02S40/22—Light-reflecting or light-concentrating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/52—PV systems with concentrators

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Photovoltaic Devices (AREA)
  • Cultivation Of Plants (AREA)

Abstract

本申请提供了一种T型光伏索发电增产方法，它包括侧立的可双面发电的窄长形的光伏板、以及平躺于光伏板下侧的窄长形的反光板，该光伏板可同时接受直射阳光和来自反光板的反射阳光发电。本申请采用现行单晶硅光伏电池板等廉价组件、封装出了另外一种光伏发电悬索——T型光伏索，该T型光伏索发电效率高、发电成本低，还能形成间歇光照，以刺激作物生长，提高作物产量。

This application provides a method for increasing electricity production using a T-shaped photovoltaic cable. The method comprises a narrow, long photovoltaic panel standing sideways that can generate electricity on both sides, and a narrow, long reflector positioned flat on the underside of the panel. The panel can generate electricity by receiving both direct sunlight and reflected sunlight from the reflector. This application utilizes currently available, inexpensive components such as monocrystalline silicon photovoltaic panels to encapsulate an alternative photovoltaic cable—the T-shaped photovoltaic cable. This T-shaped photovoltaic cable boasts high power generation efficiency and low cost, and can also provide intermittent illumination to stimulate crop growth and increase yields.

Description

T-shaped photovoltaic cable power generation yield increasing method
Technical Field
The application belongs to the technical field of photovoltaic power generation and agricultural production, and particularly relates to a yield increasing method for power generation of a T-shaped photovoltaic cable.
Background
The inventor's prior application of a method and a photovoltaic power generation suspension cable (CN 117792235B) for cultivating a high altitude photovoltaic power generation provides a method and a photovoltaic power generation suspension cable for (utilizing) a high altitude of a cultivated land. The photovoltaic cell layer is paved around the transversely suspended high-tensile-strength bearing cable so as to encapsulate the photovoltaic power generation suspension cable, the photovoltaic power generation suspension cable is erected to the space of a farmland through the vertical support, on one hand, surplus solar power generation in the high air is absorbed, on the other hand, the photovoltaic power generation suspension cable can be irrigated by water delivery incidentally, and the complementary development of agricultural production and photovoltaic power generation-agricultural light complementation are realized. The span is large, the pile foundation is few, and the serious obstruction to the operation of the agricultural machinery can be avoided. The solar energy power generation system overcomes the technical defects that the existing agricultural light complementary technology has large power generation fluctuation, difficult overhead erection, high installation work cost, difficult cleaning and maintenance, short service life, insufficient and effective exploitation of the surplus solar energy resources on the cultivated land and the like. The photovoltaic power generation suspension cable is formed by connecting a plurality of sections of shorter photovoltaic power generation suspension cables, and each section of shorter photovoltaic power generation suspension cable forms a photovoltaic cell module, which is called a photovoltaic cell rod for short.
However, it was found that the cost of photovoltaic power generation suspension from packaging used in the present stage was still high in recent years because the scale effect had not been established and the price (about 1.6 yuan/watt) had been difficult to reduce to the price level of single crystal silicon photovoltaic panels (about 0.7 yuan/watt) in the short term.
Disclosure of Invention
The application aims to provide a T-shaped photovoltaic cable power generation yield increasing method, so that the existing low-cost flat battery components such as a monocrystalline silicon photovoltaic battery board and the like are adopted to package another photovoltaic power generation suspension cable-T-shaped light Fu Suo with high power generation efficiency and low power generation cost, and meanwhile, the growth of crops is stimulated, and the yield and income increase are realized.
In order to achieve the above purpose, the application provides a method for generating power and increasing yield by using T-shaped light Fu Suo as follows.
The application provides a T-shaped photovoltaic cable power generation yield increasing method, which comprises the steps of arranging a vertical support, a transverse hanging bearing cable and a photovoltaic panel, and is characterized by comprising the following steps:
① The T-shaped photovoltaic rod is a linear photovoltaic cell component with an inverted T-shaped structure in the cross section, and comprises a narrow and long photovoltaic (battery) plate with two sides generating electricity and a narrow and long reflecting plate lying on the lower side of the photovoltaic plate, wherein the reflecting plate reflects sunlight incident on the reflecting plate to the photovoltaic plate so that the photovoltaic plate receives direct sunlight and reflected sunlight (from the reflecting plate) at the same time, and the photovoltaic plate is irradiated by multiple sunlight at the same time to generate electricity, so that the generating efficiency (of the photovoltaic plate) is improved, and the generating cost (of a system) is reduced;
② The T-shaped photovoltaic rod is hung below a bearing rope, the upper edge of the photovoltaic plate is positioned right below the bearing rope, and the horizontal projection of the bearing rope is projected on the upper edge of the photovoltaic plate;
③ The string is formed into a T-shaped photovoltaic cable Fu Suo, the T-shaped photovoltaic cable is a photovoltaic power generation suspension cable formed by connecting a plurality of T-shaped photovoltaic rods in series by using a bearing cable, the height of the T-shaped light Fu Suo from the ground surface is H, the span of the single span of the T-shaped light Fu Suo is L, and the horizontal projection interval of the T-shaped photovoltaic cable is K, wherein H is larger than the set height dimension, L is larger than the set span dimension, K is larger than the set interval dimension, and the ratio D/K of the thickness dimension D of the T-shaped photovoltaic rod to the horizontal projection interval K of the T-shaped photovoltaic cable is less than or equal to 3;
④ The sunshade coefficient D/K is less than or equal to 0.01 or 0.02 or 0.03 or 0.05 or 0.1 or 0.2 or 0.3 or 0.5 or 1 or 2 or 3, (so as to ensure that each noon shade moves by a distance of 1 noon shade width every 1-20 minutes (preferably every 1-5 minutes), so that the same shade is prevented from being scratched by the same plant for too long time (for example, more than 30 minutes), and photosynthesis of the plant is weakened and yield is reduced. For unifying the detection criteria, the midday shadow is defined herein as the shadow of the sun at midday (i.e., 11 hours to 13 hours) that casts T-shaped light Fu Suo on the ground.
Preferably, D is less than or equal to 10mm or 20mm or 30mm or 50mm or 100mm or 200mm or 300mm or 500mm or 680mm or 790mm, and the optimal thickness dimension D is 10mm to 200mm because the T-shaped light Fu Suo of the thickness dimension D has a narrow shadow on the ground surface, and the time of scratching the crops is short, so that the normal photosynthesis is not affected.
Preferably, H is 1m or 2m or 3m or 5m or 10m or 20m or 30m or 50m or 100m, the height H is high enough to ensure that the top end of the highest crop does not touch the T-shaped photovoltaic cable, and preferably H is 5m or more, so as to ensure that the operation of the large farm machinery and the unmanned aerial vehicle is not hindered.
Preferably, L is greater than or equal to10 m or 20m or 50m or 80m or 150m or 500m or 1000m, the span L is made large enough to reduce the number of towering struts, reduce the pile foundation occupation area, avoid seriously impeding large-scale agricultural machinery operation, and preferably L is greater than or equal to 120m for ultra-large span application.
Preferably, K is more than or equal to 0.05m or 0.1m or 0.2m or 0.5m or 1m or 2m or 3m or 5m or 10m, the spacing K is properly pulled, the shadow area of the T-shaped photovoltaic cable is reduced, the illumination requirement of crop growth is ensured to the minimum extent, and the yield reduction caused by insufficient photosynthesis is avoided.
Researches show that the sun shading coefficient is reduced, D/K is less than or equal to 0.25, the lifting rope is high, H is more than or equal to 3m, sunlight required by crops is shielded for 3-5 minutes every 20 minutes, and therefore the crops can be continuously shielded, released, shielded again and intermittently illuminated again, so that the crop growth is stimulated, and the crop yield is improved. The test data show that the sunlight absorbed by crops is reduced by 13-20% on average when the intermittent illumination measures are adopted. One set of data shows that less than 13% of sunlight (namely D/K is less than or equal to 0.15) has no influence on photosynthesis and yield of crops, but can stimulate growth of crops and improve crop yield, and the other set of data shows that more than 20% of sunlight (namely D/K is less than or equal to 0.25) has some influence on photosynthesis and yield of crops. Therefore, it is not recommended to reduce the solar radiation by more than 20% in practice.
Studies have shown that the length of time that the shade is drawn across the same crop is also inversely proportional to H and directly proportional to D. Taking the British region of the city of the sea as an example, the shadow moving speed of the T-shaped light Fu Suo with the height H of 50m in the north-south trend at noon (11 points) of 3 months and 4 days is 68 cm/min, if the height H of the T-shaped photovoltaic cable is reduced to 4.6 m, the shadow moving speed is reduced to 2.5 cm/min, and if the height H of the T-shaped photovoltaic cable is reduced to 1.2 m, the shadow moving speed is reduced to 0.6 cm/min. The height H of the T-shaped photovoltaic cable is reduced to 5 meters at noon (13 half points) on 3 months and 4 days, so that the shadow moving speed is reduced to 1.3 cm/min. The synchronous comparison observation shows that the shadow (south) moving speed of the T-shaped light Fu Suo with the east-west trend height H is 0.33 millimeter/min, and the shadow moving speed is too slow, so that in the specific implementation, the relatively thick T-shaped photovoltaic cable is prevented from being erected along the east-west trend as much as possible, and the relatively thick T-shaped photovoltaic cable is erected along the north-south trend as much as possible. Therefore, in order to reduce the influence of the slow shadow moving speed on the crop growth, the suspension height H of the T-shaped photovoltaic cable should be raised as much as possible. In view of the fact that the residence time of the shadow on the crops is long when the height H is 1m, the growth of the crops is serious, so that the use of the height H with low height is not recommended, and the thickness D of the T-shaped photovoltaic cable should be reduced as much as possible to reduce the influence of the slow shadow moving speed on the growth of the crops.
In view of the above, in practice, the height H should be preferably 2m or more, more preferably 4m or more, the thickness D should be preferably 0.25m or less, more preferably 0.15m or less, the horizontal projection pitch K should be preferably 0.5m or more, more preferably 1m or more, and D/K is 0.25 or less, more preferably D/K is 0.15 or less. The size of the small-size photovoltaic cell panel in the current market is 1.22m multiplied by 0.61m, and the shadow generated by the small-size photovoltaic cell panel is 0.61m wide and three times the maximum preferred shadow width of the application is 0.25m. Such a wide shade, which necessarily stays on the same crop for a long time (generally more than 1 hour each time), results in reduced photosynthesis and yield of the crop, and necessarily causes a large ecological environmental impact on the original crop of the cultivated land.
In practice, the shading coefficient D/K should be selected according to the type of crops in the cultivated land, and for crops requiring a shading net to adjust the light level and mountain forests without regard to yield. For example, lettuce, spinach, cabbage, mustard, celery, forest, grassland and the like, can properly improve the sun shading coefficient D/K, reduce the spacing K and increase the thickness D.
The T-shaped photovoltaic cable power generation yield increasing method is characterized in that T-shaped light Fu Suo is suspended in the air between two supports along the north-south direction, the south-north direction comprises all directions with an included angle of less than 39 degrees with the warp, photovoltaic panels for double-sided power generation in the T-shaped photovoltaic cable face east to west, and included angles theta between the reflecting panels and the front and back sides of the photovoltaic panels are respectively less than or equal to 120 degrees. Therefore, the moving speed of the shadow can be improved, the shadow can be quickly moved away from the same plant of crops, and the influence on photosynthesis of the crops is reduced.
The T-shaped photovoltaic cable power generation yield increasing method is characterized in that the included angles theta of the reflecting plate and the front and back surfaces of the photovoltaic plate are respectively smaller than or equal to 90 degrees, and the included angles theta of the reflecting plate and the front and back surfaces of the photovoltaic plate are preferably smaller than or equal to 87 degrees, so that the photovoltaic plate cannot receive direct sunlight and reflected sunlight at noon (within about 1-2 minutes) to enable the system to be unpowered or generate little power.
The T-shaped photovoltaic cable power generation yield increasing method is characterized in that the T-shaped photovoltaic rods are connected to the stabilizing cable through stabilizing arms or/and buffering springs, so that the T-shaped photovoltaic rods can swing along with wind when strong wind goes on, and wind force is buffered, and wind resistance is reduced. It should be noted that, the buffer spring described herein can effectively slow down the swing amplitude of the T-shaped photovoltaic rod, thereby protecting the photovoltaic panel from excessive stress, and automatically assisting the T-shaped photovoltaic rod to reset after strong wind, so that the photovoltaic panel and the reflector maintain a relatively stationary state facing the sky.
Also preferably, the method for generating power and increasing yield by using the T-shaped photovoltaic cable comprises any one or more of the following ①-⑩ technical characteristics.
The technical characteristics are ① that the T-shaped photovoltaic rod is hung on a bearing rope, the upper edge of the photovoltaic plate is positioned under the bearing rope, the horizontal projection of the bearing rope is projected on the upper edge of the photovoltaic plate, the T-shaped photovoltaic rod can swing around the bearing rope along with wind, the swing angle of the T-shaped photovoltaic rod is limited in the range of 180 degrees by a stabilizing arm or/and a buffer spring, and the T-shaped photovoltaic rod is prevented from twisting off a connecting wire when the swing amplitude of the T-shaped photovoltaic rod around the bearing rope exceeds 360 degrees.
Technical feature ②, the T-shaped photovoltaic stick is ridden on a bearing cable, and the lower edge of the photovoltaic board is located above the bearing cable.
Technical characteristics ③, the T-shaped photovoltaic rod is laid on a plurality of bearing ropes, and two sides of the reflecting plate are fixed on the bearing ropes.
The technical characteristics ④ are that the T-shaped photovoltaic rod is connected with the counterweight through the stabilizing arm so that the photovoltaic panel always keeps a side standing (namely vertical to the ground) posture.
The technical characteristics ⑤ are that an irrigation water pipe (comprising a water belt) which is communicated with the current drip irrigation/sprinkling irrigation system is additionally arranged (or hung) on the T-shaped photovoltaic cable, and the T-shaped photovoltaic cable and the irrigation water pipe share a bearing cable and a support for irrigating crops and sprinkling pesticides or water and fertilizer, so that the complementary effect of agriculture and lighting is realized. Therefore, the technical scheme of the application not only can utilize the surplus sunlight on the farmland to carry out photovoltaic power generation, but also can carry out water delivery irrigation, and can absorb the heat of the photovoltaic panel to achieve the effects of heat dissipation, temperature reduction and power generation efficiency improvement.
The technical characteristics ⑥ are that a light supplementing electric lamp (commonly called a plant growth lamp) is additionally arranged on the T-shaped photovoltaic cable, and the T-shaped photovoltaic cable, the light supplementing electric lamp and a power supply wire thereof share a bearing cable and a support rod for supplementing light to crops with light at night so as to promote the growth of the crops. Therefore, the technical scheme of the application not only can utilize the surplus sunlight on the farmland to carry out photovoltaic power generation, but also can carry out water delivery irrigation, and can supplement light for the light-loving crops at night so as to promote the growth of the crops.
The technical characteristics ⑦ are that the diameter of the bearing cable is 1.5-4.5 times of the thickness of the photovoltaic panel, so that the bearing cable can intercept hail falling right above, and the damage of the hail to the photovoltaic panel is reduced.
Technical characteristics ⑧, the included angles theta between the reflecting plate and the front and back surfaces of the photovoltaic panel are respectively less than or equal to 90 degrees.
Technical characteristics ⑨, the included angles theta between the reflecting plate and the front and back surfaces of the photovoltaic panel are respectively less than or equal to 87 degrees.
The technical characteristics ⑩ are that the junction of the photovoltaic panel and the reflecting plate is provided with a ventilation and water-permeable gap so as to facilitate ventilation and water permeation, cleaning and dust removal and wind resistance reduction.
Compared with the prior art, the application has the following beneficial technical effects.
One has all ten beneficial technical effects of the prior application of the method for cultivating high-altitude photovoltaic power generation and the photovoltaic power generation suspension cable (CN 117792235B).
Secondly, the T-shaped light Fu Suo packaged by the low-cost components such as the existing monocrystalline silicon photovoltaic cell panel has the function of generating power by receiving multiple parts of illumination such as direct sunlight and reflected sunlight, so that the power generation efficiency (of the photovoltaic panel) can be improved.
The cost is low, the current price of the photovoltaic panel is 200 yuan/m 2 on average, and the reflector plate can adopt a reflector with the average price of 40 yuan/m 2 such as aluminized glass. Therefore, compared with the complete use of the photovoltaic panel for power generation, the solar energy collecting device collects the same energy for power generation, and the T-shaped photovoltaic rod provided with the reflecting plate is used for power generation, so that the power generation cost (of the photovoltaic panel) can be greatly reduced. In other words, the application replaces about 50% of expensive photovoltaic panels with inexpensive reflectors, which can greatly reduce the power generation cost.
The T-shaped photovoltaic rods are of a separation structure, are not connected in a linkage manner, and do not vibrate violently and are not transmitted to other T-shaped photovoltaic rods through a bearing rope, so that resonance does not occur.
Fifthly, intermittent illumination and high shadow moving frequency are realized, namely, when T-shaped light Fu Suo is suspended in the north-south direction, the shadow can be quickly removed from crops. Some vegetable test experiments conducted by the inventor show that sunlight is shielded for a while at intervals, for example, 1-5 minutes at intervals of 20-30 minutes, and the sunlight is shielded and released repeatedly in a circulating way, so that the shadows of the T-shaped photovoltaic cable are shielded and released rapidly at multiple times per day, crops under the T-shaped photovoltaic cable can be intermittently illuminated for a long time at multiple times, and the growth requirement of sunlight irradiation throughout the day can be basically met. Experimental data shows that the intermittent illumination measure can not only not influence photosynthesis, but also increase yield of crops such as vegetables, and truly realize the complementary win-win of 'agriculture' and 'light'.
Drawings
Fig. 1 is a schematic diagram of the application of the method for generating power and increasing yield by using T-type photovoltaic cables in a field of cultivation.
Fig. 2 is a schematic view of a horizontal projection cross-section of the plurality of T-lights Fu Suo in fig. 1 on a farmland.
Fig. 3 is a schematic view of the structure of one photovoltaic rod (module) of fig. 1.
Fig. 4 is a schematic cross-sectional view of one of the photovoltaic rods (modules) of fig. 3.
Fig. 5 is a schematic cross-sectional view of another photovoltaic rod (module) of fig. 3.
Fig. 6 is a schematic cross-sectional structure of a section of the T-shaped light Fu Suo in fig. 1.
Fig. 7 is a schematic structural diagram of two adjacent sections of the T-shaped photovoltaic cable in fig. 1.
Fig. 8 is a schematic structural view of an irrigation water pipe arranged below a section of T-shaped photovoltaic cable in the present application (embodiment two).
Fig. 9 is a schematic structural diagram of a light supplementing lamp arranged below a section of T-shaped photovoltaic cable in the present application (embodiment three).
Fig. 10 is a schematic view of the photovoltaic rod (module) of fig. 3 with ventilation and water-permeable slits.
FIG. 11 is a schematic view of another structure of the buffer spring and the stabilizer cable of FIG. 6 after being replaced by a counterweight.
Fig. 12 is a schematic structural view of an existing flexible photovoltaic support using two load-bearing cables and a stabilizing cable to secure the photovoltaic panel.
The reference numbers indicate 1-T type light Fu Suo, 101-T type photovoltaic rod, 2-bearing rope, 3-photovoltaic plate, 4-reflector, 5-stabilizing arm, 6-buffer spring, 7-stabilizing rope, 8-cultivated land, 9-shadow, 10-sunlight, 11-support, 12-crop, 13-beam, 14-farm machinery, 15-irrigation water pipe, 16-connector, 17-spraying water, 18-light supplementing lamp, 19-ventilation and water-permeable gap, 20-counterweight, 21-connecting wire and 22-screw.
Detailed Description
The application is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the application easy to understand.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc., are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application.
It should be noted that unless explicitly stated and limited otherwise, the terms "mounted," "connected," "in communication," and the like are to be construed broadly, and may be in electrical communication or directly connected, for example. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Embodiment one.
As shown in fig. 1,2, 3,4 and 7, thousands of T-shaped photovoltaic cables 1 are suspended in the north-south direction at intervals of 0.5 to 1.5 m from the ground surface by 3 to 5m above a thousand acre of cultivated land 8 (such as wheat or vegetable or corn or fruit orchard).
Firstly, a plurality of 182mm wide single-crystal photovoltaic cells are purchased and manufactured into a strip-shaped photovoltaic (battery) panel 3 which is 202mm wide and 1200mm long and can generate electricity on two sides for standby.
Secondly, purchasing some aluminized glass mirrors with the width of 202mm and the length of 1200mm as the reflecting plate 4 for standby.
And thirdly, taking two reflecting plates 4 as a group, taking the reflecting plates as the bottom edge of the inverted T-shaped structure, standing the photovoltaic plate 3 side at the middle position of the bottom edge, and enabling the two reflecting plates 4 and one photovoltaic (battery) plate 3 to form a T-shaped photovoltaic rod 101 of the inverted T-shaped structure.
Preferably, the included angles theta between the reflecting plate 4 and the front and back surfaces of the photovoltaic panel 3 are respectively less than or equal to 90 degrees.
It is also preferable that the junction of the photovoltaic panel 3 and the reflecting plate 4 is provided with a ventilation and water-permeable gap 19 so as to ventilate and permeate water, drain water and remove dust and reduce wind resistance.
Preferably, the T-shaped photovoltaic rods 101 are connected to the stabilizing cable 7 through the stabilizing arms 5 and/or the buffer springs 6, so that the T-shaped photovoltaic rods 101 can swing along with wind when strong wind is coming, and the wind force is buffered and the wind resistance is reduced. It should be noted that, the buffer spring 6 described herein can effectively slow down the swing amplitude of the T-shaped photovoltaic rod 101, so as to protect the photovoltaic panel 3 from being affected by excessive stress, and automatically assist the T-shaped photovoltaic rod 101 to reset after strong wind, so that the photovoltaic panel 3 and the light reflecting plate 4 maintain a relatively static state facing the sky.
Preferably, the T-shaped photovoltaic rod 101 is hung on a bearing rope 2, the upper edge of the photovoltaic panel 3 is positioned right below the bearing rope 2, the horizontal projection of the bearing rope 2 is projected on the upper edge of the photovoltaic panel 3, the T-shaped photovoltaic rod 101 can swing around the bearing rope 2 along with wind, and the swing angle of the T-shaped photovoltaic rod 101 is limited in the range of 180 degrees by the stabilizing arm 5 or/and the buffer spring 6, so that the connecting lead 21 is prevented from being twisted off when the swing amplitude of the T-shaped photovoltaic rod 101 around the bearing rope 2 exceeds 360 degrees.
Preferably, the T-shaped photovoltaic bar 101 rides on a load-bearing cable 2, and the lower edge of the photovoltaic panel 3 is located above the load-bearing cable 2 (not shown).
Preferably, the T-shaped photovoltaic rod 101 is laid on the two bearing ropes 2, and two sides of the reflecting plate 4 are respectively fixed on the two bearing ropes 2. Referring to fig. 12, the T-shaped photovoltaic rod 101 is fixed by adopting a load-bearing rope and a stabilizing rope in a large-span hyperbolic suspension rope flexible photovoltaic bracket (CN 219834036U), so that the photovoltaic cell panel 3 in the T-shaped photovoltaic rod faces to a fixed direction (forward east and forward west), thereby stabilizing the light receiving area and improving the power generation efficiency. This solution of fixing the T-shaped photovoltaic rods 101 by two load-bearing cables 2 is feasible but not preferable, because when the wind force is great, the swinging of one T-shaped photovoltaic rod 101 is necessarily involved in the swinging of the other two adjacent T-shaped photovoltaic rods 101, so that resonance is easy to occur, and the whole T-shaped photovoltaic cable 1 is easy to damage.
Preferably, the diameter of the load-bearing cable 2 is 1.5-4.5 times the thickness of the photovoltaic panel 3, so that the load-bearing cable 2 can intercept hail falling directly above, thereby reducing damage of the hail to the photovoltaic panel 3.
In the fourth step, as shown in fig. 7, a plurality of T-shaped photovoltaic rods 101 are connected in series by a load-bearing cable 2, so as to form a T-shaped photovoltaic cable 1. As shown in figure 1, a plurality of T-shaped photovoltaic cables 1 are suspended in the air 3-5 m away from the ground in the north-south direction, so that the T-shaped photovoltaic cable power generation yield increasing method which can generate power, can be used for cultivation as usual and does not occupy cultivated land 8 is formed.
Embodiment two.
Referring to the above example, as shown in fig. 5 and 6, the angle θ between the reflecting plate 4 and the front and back surfaces of the photovoltaic panel 3 is modified to be equal to or less than 87 ° or 75 °, so that the photovoltaic panel 3 can be prevented from receiving direct sunlight 10 and reflected sunlight 10 at noon (about 1-2 minutes) to make the system have no electricity or generate little electricity. In this way, some sunlight 10 can directly irradiate the eastern side of the photovoltaic panel 3 from the eastern side, other sunlight 10 can irradiate the reflecting plate 4 from the eastern side and then reflect to the eastern side of the photovoltaic panel 3, and in the afternoon, some sunlight 10 can directly irradiate the western side of the photovoltaic panel 3 from the western side, and other sunlight 10 can irradiate the reflecting plate 4 from the western side and then reflect to the western side of the photovoltaic panel 3, so that the photovoltaic panel 3 obtains double illumination power generation.
Embodiment three.
Referring to the above two steps, as shown in fig. 11, the T-shaped photovoltaic rod 101 is connected to the counterweight 20 via the stabilizing arm 5, and the photovoltaic panel 3 is always kept in a standing (i.e., vertical to the ground) posture by the self-gravity of the counterweight 20.
Example four.
Referring to the three steps, as shown in fig. 8, an irrigation water pipe (including a water band) 15 (communicated with the current drip irrigation/sprinkling irrigation system) is additionally arranged on the T-shaped photovoltaic cable 1, and the T-shaped photovoltaic cable 1 and the irrigation water pipe 15 share the bearing cable 2 and the support 11 for irrigating crops 12 and sprinkling pesticides or water fertilizers, so that the agricultural light complementation is realized. In this way, the technical scheme of the application not only can utilize the surplus sunlight 10 above the cultivated land 8 to carry out photovoltaic power generation, but also can carry out water delivery irrigation incidentally, and can absorb the heat of the photovoltaic panel 3 to achieve the effects of heat dissipation, temperature reduction and power generation efficiency improvement.
Example five.
Referring to fig. 9, referring to the above four steps, a light supplementing lamp 18 (commonly called a plant growing lamp) is additionally arranged on the T-shaped photovoltaic cable 1, and the T-shaped photovoltaic cable 1, the light supplementing lamp 18 and a power supply wire thereof share the bearing cable 2 and the support 11 for supplementing light to the light-loving crops 12 at night so as to promote the growth of the crops 12. Therefore, the technical scheme of the application not only can utilize the surplus sunlight 10 above the cultivated land 8 to carry out photovoltaic power generation, but also can carry out water delivery irrigation, and can supplement light for the light-loving crops 12 at night so as to promote the growth of the crops 12.
The foregoing disclosure is illustrative of the preferred embodiments of the present application, and the accompanying drawings are not to scale, and are not intended to limit the scope of the application, as equivalent changes according to the claims fall within the scope of the application.

Claims (9)

1.一种T型光伏索发电增产方法，包括设置竖立的支撑物和横挂的承重索以及光伏板，其特征在于，它包括以下步骤：1. A method for increasing power generation using a T-shaped photovoltaic cable, comprising providing vertical supports, horizontally hung load-bearing cables, and photovoltaic panels, characterized in that it comprises the following steps: ①制作T型光伏棒，该T型光伏棒是横截面具有T字形结构的线型光伏电池组件；该T型光伏棒包括侧立的双面发电的窄长形的光伏板、以及平躺于光伏板下侧的窄长形的反光板，反光板将射入其上的阳光反射至光伏板上，以使光伏板同时接受直射阳光和反射阳光，从而用多份阳光同时照射光伏板发电；① Fabricate a T-shaped photovoltaic rod, which is a linear photovoltaic cell assembly with a T-shaped cross-section. The T-shaped photovoltaic rod includes a narrow, long photovoltaic panel that stands upright and generates electricity on both sides, and a narrow, long reflector that lies flat on the underside of the panel. The reflector reflects sunlight incident on it onto the panel, allowing the panel to receive both direct and reflected sunlight, thereby generating electricity using multiple portions of sunlight simultaneously. ②悬挂T型光伏棒，该T型光伏棒吊挂于一根承重索下方，光伏板的上沿位于承重索的正下方，承重索的水平投影投射在光伏板的上沿上；② Hang a T-shaped photovoltaic rod, which is hung under a load-bearing cable. The upper edge of the photovoltaic panel is located directly below the load-bearing cable, and the horizontal projection of the load-bearing cable is projected on the upper edge of the photovoltaic panel; ③串成T型光伏索，该T型光伏索是多根T型光伏棒用承重索串连而成的光伏发电悬索；该T型光伏索距离地表的高度为 H、该T型光伏索之单跨的跨度为 L、该T型光伏索之水平投影间距为 K；其中，H大于设定高度尺寸、L大于设定跨度尺寸、K大于设定间距尺寸；③ A T-shaped photovoltaic cable is a photovoltaic power generation cable formed by connecting multiple T-shaped photovoltaic rods with a load-bearing cable; the height of the T-shaped photovoltaic cable from the ground is H, the span of a single span of the T-shaped photovoltaic cable is L, and the horizontal projection spacing of the T-shaped photovoltaic cable is K; where H is greater than the set height dimension, L is greater than the set span dimension, and K is greater than the set spacing dimension; ④避免同一根阴影划过同一株作物的时间超过30分钟；④ Avoid having the same shadow pass over the same crop for more than 30 minutes; ⑤使D/K≤0.25，使H≥3m，不断遮挡、放开、再遮挡、再放开地对作物进行间歇光照，以刺激作物生长，提高作物产量。⑤ Make D/K≤0.25 and H≥3m, and provide intermittent light to crops by continuously blocking, releasing, blocking again, and releasing again to stimulate crop growth and increase crop yield. 2.根据权利要求 1所述的T型光伏索发电增产方法，其特征在于：T型光伏索沿南北走向悬挂于两支撑物之间的空中，所述南北走向包括与经线夹角小于39度的所有走向；T型光伏索中的双面发电的光伏板，一面朝东另一面朝西；反光板与光伏板正背两面的夹角θ分别≤120°。2. The method for increasing power generation using a T-shaped photovoltaic cable according to claim 1 is characterized in that: the T-shaped photovoltaic cable is suspended in the air between two supports along a north-south direction, wherein the north-south direction includes all directions with an angle of less than 39 degrees with the meridian; the bifacial photovoltaic panels in the T-shaped photovoltaic cable face east and west; and the angle θ between the reflector and the front and back surfaces of the photovoltaic panels is ≤120°. 3.根据权利要求1所述的T型光伏索发电增产方法，其特征在于：T型光伏棒通过稳定臂或/和缓冲弹簧连接在稳定索上，用以使强风来袭时T型光伏棒各自可随风摆动，以缓冲风力、减小风阻。3. The method for increasing power generation using a T-shaped photovoltaic cable according to claim 1 is characterized in that the T-shaped photovoltaic rods are connected to the stabilizing cable via stabilizing arms and/or buffer springs, so that when strong winds strike, the T-shaped photovoltaic rods can swing with the wind to buffer the wind force and reduce wind resistance. 4.根据权利要求 1或2或3所述的T型光伏索发电增产方法，其特征在于：T型光伏棒通过稳定臂与配重物相连，以使光伏板始终保持侧立姿势。4. The method for increasing power generation using a T-shaped photovoltaic cable according to claim 1, 2 or 3, wherein the T-shaped photovoltaic rod is connected to a counterweight via a stabilizing arm so that the photovoltaic panel always maintains a sideways position. 5.根据权利要求 1或2或3所述的T型光伏索发电增产方法，其特征在于：T型光伏索上增设有灌溉用水管，T型光伏索与灌溉用水管共用承重索及支撑物，用以给作物灌溉、喷洒农药或水肥。5. The method for increasing power generation using a T-shaped photovoltaic cable according to claim 1, 2 or 3, wherein an irrigation pipe is added to the T-shaped photovoltaic cable, and the T-shaped photovoltaic cable and the irrigation pipe share a load-bearing cable and a support for irrigating crops and spraying pesticides or fertilizers. 6.根据权利要求 1或2或3所述的T型光伏索发电增产方法，其特征在于：T型光伏索上增设有补光电灯，T型光伏索与补光电灯及其电源导线共用承重索及支撑物杆，用以夜间给喜光作物补光。6. The method for increasing power generation using a T-shaped photovoltaic cable according to claim 1, 2, or 3, wherein a supplementary light is added to the T-shaped photovoltaic cable, and the T-shaped photovoltaic cable, the supplementary light, and its power supply wire share a load-bearing cable and a support rod to provide supplementary light to light-loving crops at night. 7.根据权利要求 1或2或3所述的T型光伏索发电增产方法，其特征在于：承重索的直径为光伏板厚度的1.5-4.5倍，以使承重索能够拦截正上方落下的冰雹，从而减轻冰雹对光伏板的伤害。7. The T-shaped photovoltaic cable power generation and production increasing method according to claim 1, 2 or 3, characterized in that the diameter of the load-bearing cable is 1.5-4.5 times the thickness of the photovoltaic panel, so that the load-bearing cable can intercept hail falling directly above, thereby reducing damage to the photovoltaic panel caused by hail. 8.根据权利要求 1或2或3所述的T型光伏索发电增产方法，其特征在于：反光板与光伏板正背两面的夹角θ分别≤90°，优选为夹角θ分别≤87°。8. The method for increasing power generation using a T-shaped photovoltaic cable according to claim 1, 2, or 3, wherein the angle θ between the reflector and the front and back surfaces of the photovoltaic panel is ≤ 90°, preferably ≤ 87°. 9.根据权利要求 1或2或3所述的T型光伏索发电增产方法，其特征在于：光伏板与反光板的交汇处开设有通风透水空隙。9. The method for increasing power generation using a T-shaped photovoltaic cable according to claim 1, 2 or 3, wherein a ventilation and water-permeable gap is provided at the intersection of the photovoltaic panel and the reflector.
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