CN111371400A - Method for increasing light-up rate of double-glass double-sided photovoltaic module - Google Patents

Method for increasing light-up rate of double-glass double-sided photovoltaic module Download PDF

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Publication number
CN111371400A
CN111371400A CN202010319653.1A CN202010319653A CN111371400A CN 111371400 A CN111371400 A CN 111371400A CN 202010319653 A CN202010319653 A CN 202010319653A CN 111371400 A CN111371400 A CN 111371400A
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CN
China
Prior art keywords
photovoltaic module
double
light
glass
increasing
Prior art date
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
Application number
CN202010319653.1A
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Chinese (zh)
Inventor
侯珺
杨利剑
王加刚
朱建国
吴亚辉
杨晓鹏
高纪尧
申翔
刘明
程庆凯
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Henan DR Construction Group Co Ltd
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Henan DR Construction Group Co Ltd
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Application filed by Henan DR Construction Group Co Ltd filed Critical Henan DR Construction Group Co Ltd
Priority to CN202010319653.1A priority Critical patent/CN111371400A/en
Publication of CN111371400A publication Critical patent/CN111371400A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/20Optical components
    • H02S40/22Light-reflecting or light-concentrating means
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/52PV systems with concentrators

Abstract

The invention relates to the technical field of photovoltaic project civil infrastructure, in particular to a method for increasing the light-up rate of a double-glass double-sided photovoltaic assembly, the light energy utilization rate is limited due to insufficient light-up rate of the back of the existing double-glass double-sided photovoltaic assembly, the method for increasing the light-up rate of the double-glass double-sided photovoltaic assembly comprises the steps of calculating the incident angle of solar rays under a support fixed by a pipe pile according to an angle setting device, laying a reflective material under the photovoltaic assembly installed in the support, positioning the reflective material through a fixing part, reflecting the solar rays to the back of the photovoltaic assembly through the reflective material, laying the reflective material according to the extending direction of the photovoltaic assembly, keeping the width of the reflective material above 1.5 m, increasing the light-up rate of a back plate of the photovoltaic assembly through the reflective material laid on the ground, and.

Description

Method for increasing light-up rate of double-glass double-sided photovoltaic module
Technical Field
The invention relates to the technical field of photovoltaic project civil infrastructure, in particular to a method for increasing the light-up rate of a double-glass double-sided photovoltaic module.
Background
In recent years, novel photovoltaic modules are continuously emerging, wherein the most concerned is double-glass double-sided or double-glass single-sided modules, and the phenomena of over-fast aging, PID (proportion integration differentiation) and the like of original and auxiliary materials of the traditional crystalline silicon single-glass modules in different environment operation are well solved.
Double-glass double-sided photovoltaic assembly, as the name implies that the front and the back can both generate electricity, its superior weatherability and power generation characteristic, the first choice of future photovoltaic power plant construction is more, to double-glass double-sided assembly, the reflection and the scattered light that its back received how much have decided the space that back generated energy can promote, therefore when assessing its generating efficiency in the photovoltaic power plant construction process, not only need consider irradiation, temperature, matching loss, line loss, sand blown by wind, installation angle etc. factor, still need focus on the influence of different installation ground to its generated energy, if add spotlight system at its back, the power generation gain can reach 50% even.
When two-sided double-glass photovoltaic module is installed, furthest reduces the back and shelters from the effective way that promotes generating efficiency under the natural environment, if through changing ground surface environment increase earth's surface reflection intensity, will give the promotion of two-sided double-glass photovoltaic module generating efficiency matter, consequently, this scheme predesigned one kind can be used for changing the method of two-glass photovoltaic module installation department earth's surface reflection light intensity, and then effectively promotes two-sided double-glass photovoltaic module's generating efficiency.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a method for increasing the light-up rate of a double-glass double-sided photovoltaic assembly, and solves the problem of limited light energy utilization rate caused by insufficient light-up rate of the back of the existing double-glass-surface photovoltaic assembly.
The technical scheme is that the method for increasing the light-up rate of the double-glass double-sided photovoltaic module is characterized in that the light-up rate of the back of the module is greatly improved by calculating the incident angle of solar rays below a support fixed by a pipe pile and laying a reflective material below the photovoltaic module installed in the support, so that the power generation efficiency is improved, the reflective material is positioned by a fixing part and refracts the solar rays to the back of the photovoltaic module through the reflective material, the reflective material is laid according to the extending direction of the photovoltaic module and keeps the width of the reflective material to be more than 1.5 meters, and the method does not influence the existing photovoltaic module support system which is constructed.
Furthermore, the fixed parts are object blocks with the mass larger than 1kg, the reflecting materials are fixed on the ground in a compression mode, fine adjustment can be conveniently carried out on the luminous materials after the luminous materials are roughly determined according to actual conditions, the construction process is simplified, the construction difficulty is reduced, the object blocks are fixed at intervals of 0.6-1m, and the reflecting materials are guaranteed not to be influenced by the external environment to deviate after being fixed.
Further, firstly surveying the flatness of the place where the photovoltaic bracket is located; selecting different paving schemes according to the ground flatness; the topography is more straight, under the condition that the square can just form the square in photovoltaic district planning, adopts basic tiling method: the reflecting materials are symmetrically laid on the left side and the right side of the support by taking the position of each tubular pile on the support as a boundary, and the laying width of the reflecting materials on the two sides is 1.5-2.5m, so that the back of the whole photovoltaic support is polished; the method is characterized in that a grid type tiling method is adopted for zones with large relief and irregular photovoltaic blocks: the tubular pile is used as a boundary, the fixed point is set through the angle setting device according to the distribution of the photovoltaic modules, the reflective material is paved on one side of the tubular pile, and the reflective material at the fixed point angle performs light reflection, so that the light-up rate of the back plate can be effectively improved, the workload of paving the reflective belt can be reduced, and construction raw materials are saved; in addition, the land with large relief can also adopt a full-coverage type paving method: the full-coverage lay-up method requires that the reflective material be laid on the photovoltaic module footprint and that the total area be greater than the full-coverage footprint.
Furthermore, the foundation tiling method adopts a reflective film with diffuse reflection function as a reflective material, so that the construction is convenient and fast.
Furthermore, in a zone with large relief, the reflective material comprising the reflective film and the tinfoil cloth is used and laid in a combined mode, the flexibility of the tinfoil cloth is better than that of the reflective film, the tinfoil cloth can be applied to terrains with certain gradients, the workload can be reduced, and construction raw materials can be saved.
Furthermore, the method is applied to a stationary photovoltaic power plant or a distributed photovoltaic power plant.
The invention has the technical effects that the luminescent material selects different implementation modes according to site construction terrain, and adopts a reflective film tiling mode with thinner thickness to carry out back plate lighting under the conditions that the terrain is more flat and the photovoltaic region planning square can form a square grid, so that the construction is convenient and rapid; aiming at areas with large relief and irregular photovoltaic areas, the tinfoil cloth with excellent flexibility can be adopted to reflect light, the workload of laying a reflective tape is reduced, construction raw materials are saved, large-area full-coverage laying can be carried out, and the brightening efficiency is improved; multiple reflection of light material looks topography, the condition of the earth fit alternate combination use according to the local, and the maximize optimizes the implementation mode, saves the fund, reaches to increase photovoltaic module backplate and goes up the light rate through multiple mode, and the project does not influence current photovoltaic module mounting system who has accomplished the construction, and the material cost is low.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic diagram of the basic tiling method structure of the present invention.
FIG. 3 is a schematic diagram of the grid tiling method of the present invention.
1. Tubular pile, 2. reflecting material, 3. fixing parts.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: the method for increasing the light-up rate of the double-glass double-sided photovoltaic module is shown in the figures 1-3, the incident angle of the solar ray is calculated under a support fixed by a tubular pile 1 according to an angle setting device, the solar irradiation enters the optimal incident angle, a reflecting material 2 is laid under the photovoltaic module installed in the support, the light-up rate of the back of the module is greatly improved, the power generation efficiency is improved, the reflecting material is positioned and fixed through a fixing part 3, the sunlight is refracted to the back of the photovoltaic module through the reflecting material, the reflecting material is laid according to the extending direction of the photovoltaic module and the width is kept to be more than 1.5 meters, the method does not influence the existing photovoltaic module support system which is already constructed, the fixing part is an object block with the mass of more than 1kg, the reflecting material is fixed on the ground in a compaction mode, and the light-emitting material can be finely adjusted according to the actual situation after being determined to, the construction process is simplified, the construction difficulty is reduced, the object blocks are fixed at intervals of 0.6-1m, and the reflecting material is prevented from being influenced by the external environment and deviating after being fixed.
Example two: on the basis of the first embodiment, the terrain is relatively flat, and a basic tiling method is adopted under the condition that a photovoltaic area planning square can form a square grid: the reflecting materials are symmetrically laid on the left side and the right side of the support by taking the position of each tubular pile on the support as a boundary, the laying width of the reflecting materials on the two sides is 1.5-2.5m, the back of the whole photovoltaic support is polished, and a reflecting film with a diffuse reflection function is adopted as the reflecting materials in the basic tiling method, so that the construction is convenient and fast.
Example three: on the basis of the first embodiment, a grid type tiling method is adopted for zones with large topographic relief and irregular photovoltaic blocks: use the tubular pile as the boundary, according to photovoltaic module's distribution, carry out the fixed point through angle setting device, lay reflecting material in tubular pile one side, the reflecting material of fixed point angle carries out the light reflex, can not only effectual improvement backplate light-struck rate like this, also can reduce the work load of laying the reflection of light area simultaneously, saves construction raw and other materials.
Example four: on the basis of the first embodiment, a full-coverage type paving method is adopted for the terrain relief zones: the full-coverage lay-up method requires that the reflective material be laid on the photovoltaic module footprint and that the total area be greater than the full-coverage footprint.
On the basis of the embodiment, in the zone with large relief of the terrain, the reflective material comprising the reflective film and the tinfoil cloth is used, and the reflective material is laid in combination, so that the flexibility of the tinfoil cloth is better than that of the reflective film, the tinfoil cloth can be applied to the terrain with a certain gradient, the workload can be reduced, and the construction raw materials can be saved.
The method is applied to a fixed photovoltaic power station or a distributed photovoltaic power station.
The invention has the technical effects that the luminescent material selects different implementation modes according to site construction terrain, and adopts a reflective film tiling mode with thinner thickness to carry out back plate lighting under the conditions that the terrain is more flat and the photovoltaic region planning square can form a square grid, so that the construction is convenient and rapid; aiming at areas with large relief and irregular photovoltaic areas, the tinfoil cloth with excellent flexibility can be adopted to reflect light, the workload of laying a reflective tape is reduced, construction raw materials are saved, large-area full-coverage laying can be carried out, and the brightening efficiency is improved; multiple reflection of light material looks topography, the condition of the earth fit alternate combination use according to the local, and the maximize optimizes the implementation mode, saves the fund, reaches to increase photovoltaic module backplate and goes up the light rate through multiple mode, and the project does not influence current photovoltaic module mounting system who has accomplished the construction, and the material cost is low.
The present invention has been described in detail with reference to the specific embodiments and examples, but these are not intended to limit the present invention. Many variations and modifications may be made by one of ordinary skill in the art without departing from the principles of the present invention, which should also be considered as within the scope of the present invention.

Claims (8)

1. The method for increasing the light-up rate of the double-glass double-sided photovoltaic module is characterized in that the solar ray incident angle is calculated according to an angle setting device below a support fixed by a tubular pile (1), a reflecting material (2) is laid below the photovoltaic module installed in the support, the reflecting material is positioned through a fixing part (3), the sunlight is refracted to the back of the photovoltaic module through the reflecting material, and the reflecting material is laid according to the extending direction of the photovoltaic module and keeps the width of the reflecting material to be more than 1.5 meters.
2. The method for increasing the light extraction rate of a dual-glass dual-sided photovoltaic module as claimed in claim 1, wherein the fixing elements are blocks with a mass of 1-1.5kg, and the light reflecting material is fixed on the ground by means of compression.
3. The method for increasing the light transmittance on a dual-glass, dual-sided photovoltaic module of claim 1,
paving by adopting a basic tiling method: the reflecting materials are symmetrically paved on the left side and the right side of the reflecting materials by taking the position of each tubular pile on the support as a boundary.
4. The method for increasing the light transmittance on a dual-glass, dual-sided photovoltaic module of claim 1,
adopting a grid type tiling method: and (3) paving a reflective material on one side of the tubular pile by taking the tubular pile as a boundary.
5. The method for increasing the light extraction on a dual-glass, bifacial photovoltaic module of claim 1, wherein a full-coverage type of paving is used: the full-coverage lay-up method requires that the reflective material be laid on the photovoltaic module footprint and that the total area be greater than the full-coverage footprint.
6. The method for increasing the light extraction on a dual-glass dual-sided photovoltaic module of claim 3, wherein the basic tiling method uses a reflective film as a reflective material.
7. The method for increasing the light transmittance on a double-glass double-sided photovoltaic module according to any one of claims 4 to 5, wherein the light reflecting material comprising a light reflecting film and a tin foil cloth is used for combined laying in the zone with large relief.
8. The method for increasing the light-up rate of the double-glass double-sided photovoltaic module is characterized by being applied to a photovoltaic power station.
CN202010319653.1A 2020-04-22 2020-04-22 Method for increasing light-up rate of double-glass double-sided photovoltaic module Pending CN111371400A (en)

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CN202010319653.1A CN111371400A (en) 2020-04-22 2020-04-22 Method for increasing light-up rate of double-glass double-sided photovoltaic module

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CN202010319653.1A CN111371400A (en) 2020-04-22 2020-04-22 Method for increasing light-up rate of double-glass double-sided photovoltaic module

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203617953U (en) * 2013-11-05 2014-05-28 任丕清 Double-sided photovoltaic power generation device capable of collecting light with large reflecting surface
CN105553415A (en) * 2015-12-16 2016-05-04 上海正硅实业发展有限公司 System and method for realizing photovoltaic power generation through ground reflection
CN107196595A (en) * 2017-07-19 2017-09-22 苏州携创新能源科技有限公司 One kind is added lustre to the two-sided photovoltaic module installation system of type
CN207354131U (en) * 2017-05-17 2018-05-11 广东爱康太阳能科技有限公司 A kind of double side photovoltaic battery device installed in one-storey house roof
CN108073766A (en) * 2017-12-13 2018-05-25 天合光能股份有限公司 A kind of preferred method of two-sided photovoltaic module setting height(from bottom)

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203617953U (en) * 2013-11-05 2014-05-28 任丕清 Double-sided photovoltaic power generation device capable of collecting light with large reflecting surface
CN105553415A (en) * 2015-12-16 2016-05-04 上海正硅实业发展有限公司 System and method for realizing photovoltaic power generation through ground reflection
CN207354131U (en) * 2017-05-17 2018-05-11 广东爱康太阳能科技有限公司 A kind of double side photovoltaic battery device installed in one-storey house roof
CN107196595A (en) * 2017-07-19 2017-09-22 苏州携创新能源科技有限公司 One kind is added lustre to the two-sided photovoltaic module installation system of type
CN108073766A (en) * 2017-12-13 2018-05-25 天合光能股份有限公司 A kind of preferred method of two-sided photovoltaic module setting height(from bottom)

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