CN212752178U - Double-sided photovoltaic module power generation system with reflection system and oriented to north and south directions - Google Patents

Double-sided photovoltaic module power generation system with reflection system and oriented to north and south directions Download PDF

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Publication number
CN212752178U
CN212752178U CN202021547012.3U CN202021547012U CN212752178U CN 212752178 U CN212752178 U CN 212752178U CN 202021547012 U CN202021547012 U CN 202021547012U CN 212752178 U CN212752178 U CN 212752178U
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photovoltaic module
double
sided photovoltaic
north
reflecting surface
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陶光远
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祝良瑜
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Dadi Sunwinland Beijing Energy Technology Co ltd
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Dadi Sunwinland Beijing Energy Technology Co ltd
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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
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking
    • 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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Abstract

The utility model relates to a have two-sided photovoltaic module power generation system towards north and south direction of reflection system, include at least: the photovoltaic module comprises a double-sided photovoltaic module facing the north-south direction, a first support body positioned on the south side of the double-sided photovoltaic module and a second support body positioned on the north side of the double-sided photovoltaic module; the double-sided photovoltaic module is installed perpendicular to the ground, the first supporting body is provided with a first reflecting surface facing the double-sided photovoltaic module, the second supporting body is provided with a second reflecting surface facing the double-sided photovoltaic module, the first reflecting surface and the second reflecting surface reflect light towards the double-sided photovoltaic module, and the supporting body and the reflecting surface supporting the reflecting surfaces form a reflecting system. The utility model discloses can increase substantially the radiant quantity of the ground reverberation that photovoltaic module received, increase substantially photovoltaic module's generated energy, improve photovoltaic power generation's income.

Description

Double-sided photovoltaic module power generation system with reflection system and oriented to north and south directions
Technical Field
The utility model relates to a photovoltaic field especially relates to a have two-sided photovoltaic module power generation system of reflection system towards north and south direction.
Background
The photovoltaic module generates electricity by receiving solar radiation light. The photovoltaic module can receive direct light and reflected light. The front surface and the back surface of the double-sided photovoltaic module can simultaneously receive direct light and reflected light of sunlight for power generation. By vertically arranging the bifacial photovoltaic modules and installing them as a low cost ground reflector system, a large amount of sunlight striking the reflector system is reflected onto the photovoltaic modules. Therefore, the photovoltaic module can receive a large amount of reflected light besides the direct solar light, so that the power generation amount is greatly increased, and the benefit of photovoltaic power generation is increased.
At present, a photovoltaic module is generally and fixedly installed on the ground, and in order to maximize the amount of solar direct light radiation received by the photovoltaic module, the photovoltaic module is generally and fixedly installed in the northern hemisphere by inclining a certain angle (which is in direct proportion to the latitude) towards the south according to the latitude. However, with this mounting method, the bifacial photovoltaic module receives mainly only direct light, and the back side receives only a small amount of reflected light.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention has been made to provide a double-sided photovoltaic module power generation system facing north and south with a reflection system that overcomes or at least partially solves the above problems.
According to the utility model discloses an aspect provides a have two-sided photovoltaic module power generation system of reflection system towards north and south direction, includes at least: the photovoltaic module comprises a double-sided photovoltaic module facing the north-south direction, a first support body positioned on the south side of the double-sided photovoltaic module and a second support body positioned on the north side of the double-sided photovoltaic module; the double-sided photovoltaic module is installed perpendicular to the ground, the first supporting body is provided with a first reflecting surface facing the double-sided photovoltaic module, the second supporting body is provided with a second reflecting surface facing the double-sided photovoltaic module, the first reflecting surface and the second reflecting surface reflect light towards the double-sided photovoltaic module, and the supporting body and the reflecting surface supporting the reflecting surfaces form a reflecting system.
In one possible embodiment, the bifacial photovoltaic module is mounted vertically on the ground by a bifacial photovoltaic module base.
In one possible embodiment, the first support and/or the second support are linear ramps with a fixed slope. The minimum value of the slope of the reflecting surface is zero, namely the included angle between the reflecting surface and the horizontal plane is zero, and the maximum value is infinite, namely the included angle between the reflecting surface and the horizontal plane is 90 degrees.
In a possible embodiment, the first support and/or the second support are curved slopes with continuously varying slopes, the minimum value of the slope of the reflecting surface is zero, i.e. the angle between the reflecting surface and the horizontal plane is zero, and the maximum value is infinite, i.e. the angle between the reflecting surface and the horizontal plane is 90 °.
In a possible embodiment, the first supporting body and/or the second supporting body are two or more broken line slopes with fixed slopes, the minimum value of the slope of the reflecting surface is zero, that is, the included angle between the reflecting surface and the horizontal plane is zero, and the maximum value is infinite, that is, the included angle between the reflecting surface and the horizontal plane is 90 °.
In a possible embodiment, the first support and/or the second support is a slope with a curved surface combined with a straight line or a broken line, the slope of the reflecting surface has a minimum value of zero, i.e. the included angle between the reflecting surface and the horizontal plane is zero, and the maximum value is infinite, i.e. the included angle between the reflecting surface and the horizontal plane is 90 °.
In one possible embodiment, a reflective plate or a reflective film having a high reflectivity to sunlight is applied to the first support and/or the second support.
In one possible embodiment, the reflector plate and/or the reflector film is a silver-plated or aluminum-plated glass mirror.
In one possible embodiment, the reflective plate and/or the reflective film is a plastic reflective film made of a transparent plastic film plated with silver or aluminum.
In one possible embodiment, the first support and/or the second support are coated with a reflective coating having a high reflectivity for sunlight.
The utility model discloses can increase substantially the radiant quantity of the ground reverberation that photovoltaic module received, increase substantially photovoltaic module's generated energy, improve photovoltaic power generation's income.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a double-sided photovoltaic module power generation system provided by an embodiment of the present invention, wherein the two sides of the double-sided photovoltaic module power generation system are both fixed slopes;
fig. 2 is a schematic structural diagram of a double-sided photovoltaic module power generation system provided by an embodiment of the present invention, in which the south side has two fixed slopes and the north side has a fixed slope;
fig. 3 is a schematic structural diagram of a double-sided photovoltaic module power generation system provided by an embodiment of the present invention, in which the south side has a fixed slope and the north side has a continuously changing slope (i.e. a curved surface);
fig. 4 is a schematic structural diagram of a double-sided photovoltaic module power generation system provided by an embodiment of the present invention, in which the south side has two fixed slopes and the north side has a continuously changing slope (i.e. a curved surface);
fig. 5 is a schematic structural diagram of a double-sided photovoltaic module power generation system with a continuously changing slope (curved surface) according to an embodiment of the present invention;
description of reference numerals:
1-double-sided photovoltaic module, 2-first support, 3-second support, 4-double-sided photovoltaic module base, 21-first reflecting surface and 31-second reflecting surface.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terms "comprises" and "comprising," and any variations thereof, in the described embodiments of the invention, and in the claims and drawings, are intended to cover a non-exclusive inclusion, such as a list of steps or elements.
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1-5, the embodiment of the present invention provides a double-sided photovoltaic module power generation system facing north and south with a reflection system, which at least includes: the photovoltaic module comprises a double-sided photovoltaic module 1 facing the north-south direction, a first support body 2 positioned on the south side of the double-sided photovoltaic module 1 and a second support body 3 positioned on the north side of the double-sided photovoltaic module 1.
The double-sided photovoltaic module 1 is installed perpendicular to the ground, the first supporting body 2 is provided with a first reflecting surface 21 facing the double-sided photovoltaic module 1, the second supporting body 3 is provided with a second reflecting surface 31 facing the double-sided photovoltaic module 1, and the first reflecting surface 21 and the second reflecting surface 31 reflect light to the double-sided photovoltaic module 1. The support body for supporting the reflecting surface and the reflecting surface form a reflecting system.
In one example, the bifacial photovoltaic module 1 is vertically mounted to the ground through a bifacial photovoltaic module base 4.
In one example, the first support 2 is a straight slope with a fixed slope, the inclined surface of the straight slope is a first reflecting surface, the minimum value of the slope of the reflecting surface is zero, that is, the included angle between the reflecting surface and the horizontal plane is zero, and the maximum value is infinite, that is, the included angle between the reflecting surface and the horizontal plane is 90 °.
In one example, the first support 2 is a curved slope with a continuously changing slope, the curved surface is a first reflecting surface, the minimum value of the slope of the reflecting surface is zero, that is, the included angle between the reflecting surface and the horizontal plane is zero, and the maximum value is infinite, that is, the included angle between the reflecting surface and the horizontal plane is 90 °.
In one example, the first support 2 is a polygonal line slope formed by connecting two or more fixed slopes, the minimum value of the slope of the reflecting surface is zero, that is, the included angle between the reflecting surface and the horizontal plane is zero, and the maximum value is infinite, that is, the included angle between the reflecting surface and the horizontal plane is 90 °.
In one example, the first support 2 is a slope formed by combining a curved surface and a straight line or a broken line, the minimum value of the slope of the reflecting surface is zero, that is, the included angle between the reflecting surface and the horizontal plane is zero, and the maximum value is infinite, that is, the included angle between the reflecting surface and the horizontal plane is 90 °.
In one example, the second supporting body 3 is a straight slope with a fixed slope, the inclined surface of the straight slope is a second reflecting surface, the minimum value of the slope of the reflecting surface is zero, that is, the included angle between the reflecting surface and the horizontal plane is zero, and the maximum value is infinite, that is, the included angle between the reflecting surface and the horizontal plane is 90 °.
In one example, the second supporting body 3 is a curved slope with a continuously changing slope, the curved surface is a second reflecting surface, the minimum value of the slope of the reflecting surface is zero, that is, the included angle between the reflecting surface and the horizontal plane is zero, and the maximum value is infinite, that is, the included angle between the reflecting surface and the horizontal plane is 90 °.
In one example, the second supporting body 3 is a polygonal line slope formed by connecting two or more fixed slopes, the minimum value of the slope of the reflecting surface is zero, that is, the included angle between the reflecting surface and the horizontal plane is zero, and the maximum value is infinite, that is, the included angle between the reflecting surface and the horizontal plane is 90 °.
In one example, the second supporting body 3 is a slope formed by combining a curved surface and a straight line or a broken line, the minimum value of the slope of the reflecting surface is zero, that is, the included angle between the reflecting surface and the horizontal plane is zero, and the maximum value is infinite, that is, the included angle between the reflecting surface and the horizontal plane is 90 °.
The support body is formed by a slope which changes the shape of the ground surface from an original plane to a slope facing the assembly, the slope inclines towards the direction of the photovoltaic assembly and serves as a support body to support the reflecting surface, and sunlight which is originally irradiated on the ground on the north and south sides of the photovoltaic assembly is reflected to the photovoltaic assembly which is vertically installed, so that the reflected light irradiated on the photovoltaic assembly is greatly increased, and the power generation capacity of the photovoltaic assembly is increased.
In one example, a reflective plate or a reflective film having a high reflectance to sunlight is laid on the first support 2 and/or the second support 3.
Illustratively, the reflective plate and/or reflective film is a silver-plated or aluminum-plated glass mirror.
Illustratively, the reflective sheet and/or the reflective film is a plastic reflective film made of a transparent plastic film plated with silver or aluminum.
In one example, the first support 2 and/or the second support 3 are coated with a reflective coating having a high reflectivity to sunlight.
Illustratively, the reflective coating may be a relatively high reflectance material such as slaked lime slurry.
The slope inclines towards the direction of the photovoltaic module so as to reflect sunlight irradiated on the slope by the sun to the photovoltaic module which is vertically installed by the reflecting surface. The slope of the slope and the combination of different slopes determine the radiant quantity of the radiation light emitted to the ground from different angles by the sun reflected to the photovoltaic module, so that the optimal combination of the power generation power of the photovoltaic module in different periods can be designed through the combination design of the slopes with different slopes according to the power transmission capacity of the power grid in different periods.
In the northern hemisphere, most of the time sunlight is radiated to the ground from the south direction, and the height angle of the sunlight projected onto the vertical plane facing the north-south direction (i.e. the angle of the sunlight projected onto the vertical plane facing the north-south direction from the horizon) is from a very small angle up to 90 °. Only in the morning and evening in summer, the sunlight irradiates from the north direction, and the elevation angle of the sunlight projected to the vertical plane facing the south-north direction (namely the included angle of the sunlight and the horizon projected to the vertical plane facing the south-north direction) is larger and approaches to 90 degrees.
Therefore, in the reflection system on the south side of the photovoltaic module, the arrangement of the conditions that the altitude angle of the south sunlight is lower and the altitude angle is higher is considered, and therefore the altitude angle range suitable for the reflection surface is wider. The optimal angle of the power grid needs to be optimally set according to the requirement of the power grid on the generated output.
The reflection system at the north side of the photovoltaic module is set to reflect the north sunlight with a higher elevation angle and reflect the south sunlight.
The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (7)

1. A south-north facing bifacial photovoltaic module power generation system having a reflection system, comprising at least:
the photovoltaic module comprises a double-sided photovoltaic module (1) facing the north-south direction, a first support body (2) located on the south side of the double-sided photovoltaic module (1) and a second support body (3) located on the north side of the double-sided photovoltaic module (1);
the double-sided photovoltaic module (1) is arranged perpendicular to the ground, the first supporting body (2) is provided with a first reflecting surface (21) facing the double-sided photovoltaic module (1), the second supporting body (3) is provided with a second reflecting surface (31) facing the double-sided photovoltaic module (1), the first reflecting surface (21) and the second reflecting surface (31) reflect light to the double-sided photovoltaic module (1), and the supporting body and the reflecting surface supporting the reflecting surfaces form a reflecting system;
the double-sided photovoltaic module (1) is vertically arranged on the ground through a double-sided photovoltaic module base (4);
and a reflecting plate or a reflecting film with higher sunlight reflectivity is paved on the first supporting body (2) and/or the second supporting body (3), or a reflecting coating with higher sunlight reflectivity is coated on the reflecting plate or the reflecting film.
2. The double-sided photovoltaic module power generation system with reflection system facing north-south direction according to claim 1, characterized in that the first support (2) and/or the second support (3) is a straight slope with fixed slope.
3. The double-sided photovoltaic module power generation system with reflection system facing north and south according to claim 1, characterized in that the first support (2) and/or the second support (3) is a curved slope with continuously changing slope.
4. The double-sided photovoltaic module power generation system with reflection system facing north and south according to claim 1, wherein the first support (2) and/or the second support (3) are two or more broken line slopes connected with a fixed slope.
5. The double-sided photovoltaic module power generation system with reflection system facing north and south according to claim 1, characterized in that the first support (2) and/or the second support (3) is a slope with a curved surface combined with a straight line or a broken line.
6. The north-south facing bifacial photovoltaic module power generating system according to claim 1, wherein the reflector plate and/or the reflector film is a silver or aluminum plated glass reflector.
7. The south-north facing bifacial photovoltaic module power generating system according to claim 1, wherein the reflector plate and/or the reflector film is a plastic reflector film made of a transparent plastic film plated with silver or aluminum.
CN202021547012.3U 2020-07-30 2020-07-30 Double-sided photovoltaic module power generation system with reflection system and oriented to north and south directions Active CN212752178U (en)

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CN202021547012.3U CN212752178U (en) 2020-07-30 2020-07-30 Double-sided photovoltaic module power generation system with reflection system and oriented to north and south directions

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CN202021547012.3U CN212752178U (en) 2020-07-30 2020-07-30 Double-sided photovoltaic module power generation system with reflection system and oriented to north and south directions

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CN212752178U true CN212752178U (en) 2021-03-19

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