CN112821852B - A uniform light photovoltaic agricultural system - Google Patents
A uniform light photovoltaic agricultural system Download PDFInfo
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- CN112821852B CN112821852B CN202110167002.XA CN202110167002A CN112821852B CN 112821852 B CN112821852 B CN 112821852B CN 202110167002 A CN202110167002 A CN 202110167002A CN 112821852 B CN112821852 B CN 112821852B
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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
- H02S20/00—Supporting structures for PV modules
- H02S20/10—Supporting structures directly fixed to the ground
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
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- 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
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- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Botany (AREA)
- Water Supply & Treatment (AREA)
- Wood Science & Technology (AREA)
- Photovoltaic Devices (AREA)
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Abstract
本发明公开了一种匀光型光伏农业系统，该系统在不影响农地上植被的生长情况下的同时进行光伏发电，解决植物与光伏板争光的难题。该匀光型光伏农业系统包括支架，第一太阳能光伏板、第二太阳能光伏板和压槽分光玻璃板，所述第一太阳能光伏板、第二太阳能光伏板和压槽分光玻璃板自上而下依次并列安装在支架上，所述第二太阳能光伏板与所述压槽分光玻璃板以及第一太阳能光伏板之间存在间隙。所述压槽分光玻璃板上表面为一平面，下表面开有压槽阵列，所述压槽阵列经特定自由曲面分割平移得到，当太阳光先后通过所述压槽分光玻璃板的上下表面后，光线均匀照射到所述第一太阳能光伏板、第二太阳能光伏板和压槽分光玻璃板下沿光线照射方向的投影区域。
The present invention discloses a uniform light photovoltaic agricultural system, which performs photovoltaic power generation without affecting the growth of vegetation on farmland, thereby solving the problem of plants competing for light with photovoltaic panels. The uniform light photovoltaic agricultural system includes a bracket, a first solar photovoltaic panel, a second solar photovoltaic panel and a grooved spectroscopic glass plate, wherein the first solar photovoltaic panel, the second solar photovoltaic panel and the grooved spectroscopic glass plate are sequentially installed on the bracket in parallel from top to bottom, and there is a gap between the second solar photovoltaic panel and the grooved spectroscopic glass plate and the first solar photovoltaic panel. The upper surface of the grooved spectroscopic glass plate is a plane, and the lower surface is provided with a groove array, which is obtained by segmentation and translation of a specific free-form surface. When sunlight passes through the upper and lower surfaces of the grooved spectroscopic glass plate successively, the light is evenly irradiated to the projection area along the light irradiation direction under the first solar photovoltaic panel, the second solar photovoltaic panel and the grooved spectroscopic glass plate.
Description
Technical Field
The invention relates to the technical field of intersection of solar photovoltaic power generation and agriculture, in particular to a uniform photovoltaic agriculture system.
Background
The average cultivated area of people in China is only 1.38 mu, which is less than 40% of the average world level. How to efficiently utilize precious cultivated land resources to bring more benefits to people, and has important significance for pulling rural economic development. In recent years, with the increase of the power generation efficiency of the solar photovoltaic panel, a photovoltaic agricultural system compatible with 'seed land and power generation' provides a brand new technical route for efficiently utilizing cultivated land resources.
In the four seasons, the solar altitude of any point of the earth is continuously changed, the solar altitude in summer is high, and the solar altitude in winter is low. At present, the photovoltaic agricultural system mainly has the problems that 1, a solar photovoltaic panel shields sunlight, crops in a bottom projection area cannot grow normally due to insufficient light intensity reaching photosynthesis compensation points, the design can enable farmlands to generate a region with staggered yin and yang in summer, uneven crop growth is caused, and 2, in order to prevent projections generated by the photovoltaic panel under a low solar altitude angle from shielding rear rows, the row spacing of a solar photovoltaic panel array is required to be set larger, so that the total power generation amount on each mu of land is limited.
In the past, photovoltaic agricultural systems at home and abroad improve the illumination condition of crops by adding a light splitting plate in the middle of a solar photovoltaic plate. However, this method cannot solve the problem of the larger row pitch of the solar photovoltaic panel array.
Disclosure of Invention
The invention provides a uniform light type photovoltaic agricultural system, which is formed by a 'pressing groove beam splitting glass plate-a first solar photovoltaic plate-a second solar photovoltaic plate'. The device mainly solves the two problems that crops under the photovoltaic panel are covered by shadows of the photovoltaic panel and cannot grow well, and on the other hand, when a season is in winter, after the solar photovoltaic panel assembly is irradiated, the shadows of the solar photovoltaic panel assembly can cover the rear solar photovoltaic panel assembly, so that the generated energy of the solar photovoltaic panel is influenced.
The technical scheme includes that the uniform light type photovoltaic agricultural system comprises a support and a solar photovoltaic panel assembly, wherein the solar photovoltaic panel assembly comprises a first solar photovoltaic panel, a second solar photovoltaic panel and a pressing groove light splitting glass plate, and the first solar photovoltaic panel, the second solar photovoltaic panel and the pressing groove light splitting glass plate are sequentially arranged on the support side by side from top to bottom.
Further, the area ratio of the first solar photovoltaic panel to the second solar photovoltaic panel to the pressing groove light-splitting glass plate is 1:1:X, X=0.5-1.5, and most preferably X=1.
Further, gaps with certain widths are formed between the second solar photovoltaic panel, the first solar photovoltaic panel and the pressing groove beam-splitting glass plate respectively, and the widths of the two gaps are equal.
Further, the pressing groove light-splitting glass plate is made of high-transmittance glass materials, the upper surface of the pressing groove light-splitting glass plate is a plane, and the lower surface of the pressing groove light-splitting glass plate is provided with a pressing groove array.
Further, the cross section of the pressing groove is composed of a plane and a sectional free-form surface.
Further, the planar width of the pressing groove is a, the pressing groove is perpendicular to the upper surface of the pressing groove light-splitting glass plate, and the interval between two adjacent pressing grooves is 0.
Further, the indent array is formed by a specific free-form surface which is an initial surface type of the lower surface of the indent light-splitting glass plate meeting the uniform light-splitting requirement through dividing and translating.
Further, the mathematical model of the indent array is:
Wherein, For this purpose a unit vector of the incident light on the particular free-form surface,For this purpose the unit vector of the outgoing light on the particular free-form surface,For this purpose, k i is the vector of the normal vector at the point of incidence of the ray on the particular free-form surfaceM i is the intersection point of sunlight and a specific free-form surface, M i is M i(Mxi,Myi) and Mx i＝i(i＝0、1、2…), My0＝0;Ni is the intersection point of light and agricultural land, N i is N i(Nxi,Nyi), andM i ' is the intersection point of the light and the pressing groove array, M i ' has the coordinate of M ' i(Mxi,My′i), θ is the inclination angle of the pressing groove light-splitting glass plate relative to the farmland, h is the height of the pressing groove light-splitting glass plate relative to the farmland, n 0 is the refractive index of air, n 1 is the refractive index of the glass medium, and "[ ]" is an integer symbol.
The principle of the pressed slot light-splitting glass plate for uniformly illuminating sunlight on the agricultural land is briefly described as follows, sunlight can be regarded as uniformly distributed parallel light, and the light rays are vertically incident on the upper surface of the pressed slot light-splitting glass plate, so that the propagation path of the light rays is not changed after the light rays pass through the upper surface of the pressed slot light-splitting glass plate. When light propagates to the lower surface of the pressing groove light-splitting glass plate, according to the Snell's law, n 1*sinθ1＝n2*sinθ2(n1 is the refractive index of the light-splitting glass plate, theta 1 is the incident angle of the light on the interface, n 2 is the refractive index of air, theta 2 is the exit angle of the light on the interface), the propagation path of the light changes, and the light can be refracted to a projection area below the solar photovoltaic panel assembly. After the included angle between the incident light and the lower surface of the pressing groove light-splitting glass plate is determined, the included angle between the emergent light and the lower surface of the pressing groove light-splitting glass plate can be accurately calculated. When the inclination angle of the solar photovoltaic panel assembly relative to the farmland is known, the projection area of the solar photovoltaic panel assembly on the farmland and the height of the solar photovoltaic panel assembly relative to the farmland can be accurately obtained, and the intersection point position of the emergent light and the farmland can be accurately obtained. Therefore, the intersection point position of the light and the farmland can be changed by designing the surface type parameters of each position of the lower surface of the pressing groove light-splitting glass plate, so that the sunlight is uniformly distributed on the farmland.
The vast majority of the land areas of our country are located in the areas of north where the north returns, the maximum value of the annual solar altitude of each area is reduced along with the rise of the latitude, the annual solar altitude always changes, the solar altitude in winter is low, and the solar altitude in summer is high. In order to ensure that the annual power generation of the solar photovoltaic is not basically influenced by the change of the altitude angle of the sun, the uniform light type photovoltaic agricultural system can meet the condition that the altitude angle of the sun is the lowest in northern hemisphere areas when winter to solar terms. At this time, the shadow area generated by the illumination of the previous uniform light type photovoltaic agricultural system is completely covered on the pressing groove light splitting glass plate and is not covered on the first solar photovoltaic plate and the second solar photovoltaic plate. The above conditions can be achieved by setting the inclination angle of a specific solar photovoltaic panel assembly and the spacing of each group of uniform-light type photovoltaic agricultural systems. Taking the Hebei male safety area as an example, the optimal inclination angle of a local photovoltaic panel relative to the horizontal plane is 32 degrees, the size of a solar photovoltaic panel is 1622mm x 1068mm x 35mm, when the condition that the generating capacity of the photovoltaic panel is not affected all year round is met, the minimum distance between the front and the back of the uniform light type photovoltaic agricultural system is about 1.18m, the installed capacity of each mu of the uniform light type photovoltaic agricultural system is 106, the generating capacity of each mu of the uniform light type photovoltaic agricultural system can be about 8.1 ten thousand degrees of electricity (under the illumination condition of Hebei male safety area), the installed capacity of each mu of the original light splitting uniform light type photovoltaic agricultural system is 69, and the generating capacity of each mu of the uniform light type photovoltaic agricultural system can be about 5.3 ten thousand degrees of electricity all year round. Compared with the annual energy generation amount of the original split-type uniform photovoltaic agricultural system in each mu of land, the annual energy generation amount of the novel uniform photovoltaic agricultural system in each mu of land is improved by 2.8 ten thousand degrees.
The uniform light type photovoltaic agricultural system can ensure that the annual yield of crops under the solar photovoltaic panel is not greatly affected. Because the inclination angle value of the solar photovoltaic panel assembly is fixed, light spots under the solar photovoltaic panel assembly can move along with the change of the solar altitude angle. When sunlight is perpendicularly incident on the solar photovoltaic panel assembly, a shadow area does not exist on the farm. When sunlight obliquely enters the solar photovoltaic panel assembly, the whole light spot on the farm can move to the south or the north along with the sunlight, so that photosynthesis of crops is not greatly affected basically. In winter, most crops are in dormancy or non-cultivation period due to cold weather, so that sunlight cannot be received on the farm, the annual yield of the crops cannot be greatly influenced, and the uniform light type photovoltaic agricultural system ensures the annual yield of the crops.
The solar photovoltaic panel assembly has a certain inclination angle, and when raining, rainwater can slide down along the upper surface of the solar photovoltaic panel assembly. Because a gap with a certain width exists between the second solar photovoltaic plate and the pressing groove light-splitting glass plate as well as between the second solar photovoltaic plate and the first solar photovoltaic plate, rainwater can fall from the two gaps, and therefore irrigation of crops under the solar photovoltaic plate assembly is achieved.
There is certain size's clearance between second solar photovoltaic board and indent beam split glass board and the first solar photovoltaic board, is favorable to reducing the wind pressure in this even light type photovoltaic agricultural system to reduce the cost expenditure of support in this system.
Compared with the prior art, the solar energy splitting system has the advantages that sunlight is split through the pressing groove splitting glass plate, sunlight transmitted from the front part can be uniformly distributed under the solar photovoltaic plate assembly, photosynthesis of crops is facilitated, annual output of the crops is guaranteed, the solar photovoltaic plates can be illuminated all the year round and cannot be shielded by shadow areas generated by the front solar photovoltaic plates, annual generating capacity of the single solar photovoltaic plate is improved, meanwhile, compared with an original photovoltaic agricultural system, the number of the solar photovoltaic plates in unit area can be improved, and accordingly generating capacity per mu is improved, two gaps between the second solar photovoltaic plate and the pressing groove splitting glass plate and between the second solar photovoltaic plate and the first solar photovoltaic plate are formed, irrigation of crops under the solar photovoltaic plate assembly in a rainy day is achieved, and wind pressure in the uniform photovoltaic agricultural system is reduced, so that cost of a bracket in the system is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an even-light photovoltaic agricultural system;
FIG. 2 is a cross-sectional view of a pressed slot spectroscopic glass plate;
FIG. 3 is a schematic diagram of the spectroscopic principle of a pressed slot spectroscopic glass plate;
FIG. 4 is a schematic diagram of a solar photovoltaic panel assembly with normal incidence of sunlight;
FIG. 5 is a schematic view of an illuminated condition of a homothermal photovoltaic agricultural system during winter;
FIG. 6 is a schematic illustration of precipitation of a homogeneous photovoltaic agricultural system in rainy days;
fig. 7 is another schematic structural view of the dodging type photovoltaic agricultural system.
1-Bracket in the figure; 2-solar photovoltaic panel components, 21-first solar photovoltaic panels, 22-second solar photovoltaic panels, 23-pressing groove light-splitting glass plates, 3-gaps, 4-high-transmittance glass, 40-pressing groove light-splitting glass plate upper surfaces, 41-pressing grooves, 410-planes, 411-segmented free curved surfaces, 5-sunlight, 6-farmlands and 7-rainwater.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Example 1
The utility model provides a dodging type photovoltaic agricultural system as shown in figure 1, it includes solar photovoltaic panel assembly 2 on support 1 and the support 1, solar photovoltaic panel assembly 2 includes first solar photovoltaic panel 21, second solar photovoltaic panel 22 and indent beam split glass board 23, the beam split effect to the sunlight is realized to indent beam split glass board 23, the lower side of second solar photovoltaic panel 22 is passed through to indent beam split glass board 23, the width of first solar photovoltaic panel 21, second solar photovoltaic panel 22 and indent beam split glass board 23 is 1.07m, there is 5mm wide clearance between second solar photovoltaic panel 22 and first solar photovoltaic panel 21 and the indent beam split glass board 23.
As shown in fig. 2, the pressing groove light-splitting glass plate 23 is made of glass 4 with high transmittance, the upper surface 40 of the pressing groove light-splitting glass plate is a plane, and the lower surface is a pressing groove array. The indent 41 is composed of a flat surface 410 and a segmented free-form surface 411.
The mathematical model of the indent array is:
Wherein, For this purpose a unit vector of the incident light on the particular free-form surface,For this purpose the unit vector of the outgoing light on the particular free-form surface,For this purpose, k i is the vector of the normal vector at the point of incidence of the ray on the particular free-form surfaceM i is the intersection point of sunlight and a specific free-form surface, M i is M i(Mxi,Myi) and Mx i＝i(i＝0、1、2…), My0＝0;Ni is the intersection point of light and agricultural land, N i is N i(Nxi,Nyi), andM i ' is the intersection point of the light and the pressing groove array, M i ' has the coordinate of M ' i(Mxi,My′i), θ is the inclination angle of the pressing groove light-splitting glass plate relative to the farmland, h is the height of the pressing groove light-splitting glass plate relative to the farmland, n 0 is the refractive index of air, n 1 is the refractive index of the glass medium, and "[ ]" is an integer symbol.
As shown in fig. 3, the principle that the pressing groove light-splitting glass plate 23 can uniformly irradiate the direct sunlight 5 on the agricultural land 6 is that the sunlight 5 can be regarded as uniformly distributed parallel light, and the propagation path of the light is not changed after the light passes through the pressing groove light-splitting glass plate upper surface 40 because the light is vertically incident on the pressing groove light-splitting glass plate upper surface 40. When light propagates to the pressing groove 41 of the pressing groove light-splitting glass plate, according to the snell's law, n 1*sinθ1＝n2*sinθ2(n1 is the refractive index of the light-splitting glass plate, θ 1 is the incident angle of light on the interface, n 2 is the refractive index of air, and θ 2 is the exit angle of light on the interface), the propagation path of the light changes, so that the projection area below the solar photovoltaic panel assembly 2 is irradiated. After determining the included angle between the incident light and the pressing groove 41 of the pressing groove light splitting glass plate 23, the included angle between the emergent light and the pressing groove 41 of the pressing groove light splitting glass plate 23 can be accurately calculated. When the inclination angle of the solar photovoltaic panel assembly 2 relative to the farm land 6 is known, the size of the projection area of the solar photovoltaic panel assembly 2 on the farm land 6 and the height of the solar photovoltaic panel assembly 2 relative to the farm land 6 can be accurately obtained, and the intersection point position of the emergent ray and the farm land 6 can be accurately obtained. Therefore, by designing the surface parameters of each position of the pressing groove 41 of the pressing groove light splitting glass plate 23, the position of the intersection point of the light ray and the agricultural land 6 can be changed, so that the sunlight 5 is uniformly distributed on the agricultural land 6.
As shown in fig. 4, when sunlight 5 is vertically incident on the solar photovoltaic panel assembly 2, a part of the sunlight 5 is absorbed and converted into electric energy by the first solar photovoltaic panel 21 and the second solar photovoltaic panel 22, and the other part of the sunlight 5 is incident on the pressing groove light-splitting glass panel 23 and is uniformly distributed on the farm land 6, and according to zemax simulation illuminance diagrams, no shadow area exists on the farm land 6 at this time, and photosynthesis of crops is ensured.
As shown in fig. 5, in winter to solar terms, the altitude of the sun is the lowest year round for northern hemisphere areas. The shadow generated by illumination of the front uniform light type photovoltaic agricultural system is only completely covered on the pressing groove light splitting glass plate 23 on the rear solar photovoltaic panel assembly 2, and cannot be covered on the first solar photovoltaic panel 21 and the second solar photovoltaic panel 22, so that the first solar photovoltaic panel 21 and the second solar photovoltaic panel 22 can normally receive illumination for generating power all year round, and most crops are in dormancy or non-cultivation period in winter in Hebei province and the annual yield of the crops is not greatly influenced even if sunlight 5 is not available on the farm land 6.
As shown in fig. 6, in a rainy day, the rain water 7 may slip down the solar photovoltaic panel assembly 2. Because the gap 3 with the width of 5mm exists between the second solar photovoltaic panel 22, the pressing groove light splitting glass plate 23 and the first solar photovoltaic panel 21 in the solar photovoltaic panel assembly 2, rainwater can fall from the gap 3, crops under the solar photovoltaic panel assembly 2 can be irrigated, and meanwhile, wind pressure in the uniform-light-type photovoltaic agricultural system can be reduced due to the existence of the gap, so that cost expenditure of the bracket 1 in the system is reduced.
Example two
As shown in fig. 7, the second embodiment is different from the first embodiment in that a pressing groove light splitting glass plate 23 is also installed on the upper side of the solar photovoltaic panel 21, and the lower surface is also composed of a pressing groove array. The mounting mode has the advantage that even irradiation of sunlight 5 on the farm land 6 can be realized under the condition that the mounting height of the solar photovoltaic panel assembly 2 is low.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The uniform light type photovoltaic agricultural system is characterized by comprising a bracket (1) and a solar photovoltaic panel assembly (2), wherein the solar photovoltaic panel assembly (2) consists of a first solar photovoltaic panel (21), a second solar photovoltaic panel (22) and a pressing groove light-splitting glass plate (23), and the first solar photovoltaic panel (21), the second solar photovoltaic panel (22) and the pressing groove light-splitting glass plate (23) are sequentially arranged on the bracket in parallel from top to bottom;
the pressing groove light-splitting glass plate (23) is made of high-transmittance glass (4) material, the upper surface (40) of the pressing groove light-splitting glass plate is a plane, and the lower surface is provided with a pressing groove array;
The section of the pressing groove (41) consists of a plane (410) and a sectional free-form surface (411);
the width of a plane (410) of each pressing groove (41) is a, the plane (410) is perpendicular to the upper surface (40) of the pressing groove light-splitting glass plate, and the interval between two adjacent pressing grooves (41) is 0;
the pressing groove array is formed by dividing and translating a specific free-form surface, and the specific free-form surface is an initial surface type of the lower surface of the pressing groove light-splitting glass plate meeting the requirement of uniform light splitting;
the mathematical model of the indent array is:
Wherein, For this purpose a unit vector of the incident light on the particular free-form surface,For this purpose the unit vector of the outgoing light on the particular free-form surface,For this purpose the normal vector at the point of incidence of the ray on the free-form surface is specified,Is a vectorSlope magnitude of (2); is the intersection point of sunlight (5) and a specific free-form surface, Is the coordinates of (a)And (2) and=(=0、1、2...),=0;Is the intersection point of sunlight (5) and farm land (6),Is the coordinates of (a)And (2) and=(=0、1、2...);Is the intersection point of the sunlight (5) and the pressing groove array,Is the coordinates of (a)For the inclination angle of the pressing groove light-splitting glass plate (23) relative to the agricultural land (6),For pressing the height of the groove beam-splitting glass plate (23) relative to the farmland (6),Is the refractive index of air and is the refractive index of air,Is the refractive index of the medium of the glass (4), and the "[ ]" is an integer symbol.
2. The dodging type photovoltaic agricultural system according to claim 1, wherein the area ratio of the first solar photovoltaic panel (21), the second solar photovoltaic panel (22) and the pressing groove light-splitting glass plate (23) is 1:1:X, and X=0.5-1.5.
3. The uniform-light type photovoltaic agricultural system according to claim 1, wherein a gap (3) with a certain width is formed between the second solar photovoltaic panel (22) and the first solar photovoltaic panel (21) and between the second solar photovoltaic panel and the pressing groove light-splitting glass plate (23), and the widths of the two gaps (3) are equal.
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| CN114303722B (en) * | 2021-12-20 | 2022-08-30 | 中国科学技术大学 | Intelligent photovoltaic glass greenhouse and operation method and application thereof |
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