CN102761293A - System for enhancing generating efficiency of two-sided solar battery - Google Patents
System for enhancing generating efficiency of two-sided solar battery Download PDFInfo
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- CN102761293A CN102761293A CN2011101137864A CN201110113786A CN102761293A CN 102761293 A CN102761293 A CN 102761293A CN 2011101137864 A CN2011101137864 A CN 2011101137864A CN 201110113786 A CN201110113786 A CN 201110113786A CN 102761293 A CN102761293 A CN 102761293A
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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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Abstract
The invention discloses a system for enhancing the generating efficiency of a two-sided solar battery, which mainly comprises a reflecting system and a supporting system, wherein the reflecting system consists of an optical element used for reflecting sunlight according to a certain angle and is used for reflecting the sunlight to a backlight side of the two-sided solar battery to increase the light receiving rate; and the supporting system is a mechanical system or an automation system used for supporting the reflecting component and fixing the reflecting system to a designed height and angle so as to achieve the purpose of improving the light receiving efficiency of the backlight side of a photovoltaic component.
Description
Technical field
The invention belongs to solar energy photovoltaic system, the two-sided photovoltaic solar system that is particularly useful for having automatic tracking system belongs to a kind of auxiliary system that strengthens the double-sided solar battery generating efficiency to strengthen its generating efficiency.
Background technology
Photovoltaic technology is expected to instead main force's energy of traditional energy as a kind of emerging energy technology.At present, its key technical problem that need solve is to reduce cost and improve generating efficiency.To these two the not only independent but also technical problems that are mutually related, scientific and technological circle have provided numerous improvement schemes, wherein for improving the generating efficiency aspect, the transformation efficiency that its scheme of paying close attention to emphatically is to improve solar cell with improve it and receive optical efficiency.Receive optical efficiency for raising; Concentrate on again and pay close attention to two aspects of light-receiving area that receive light rate and increase solar cell that improve unit are; Various double-sided solar batteries; Like HIT solar cell, two-side film membrane solar cell etc., on raising solar cell light-receiving area, have fabulous effect, almost the light-receiving area with solar cell on the unit are is doubled.Yet owing to can not let two faces of photovoltaic module accept the sunlight of vertical irradiation simultaneously, shady face is limited to the contribution of light income.
Receive the light rate to increase its generating efficiency for what improve the solar cell photovoltaic assembly; A lot of solar cell photovoltaic systems have adopted solar automatic tracking system when design; Thereby make solar module receive the light rate to increase its generating efficiency perpendicular to sunlight with increase all the time, this system almost can improve 40% energy output.When the used photovoltaic module of this system is two-sided when receiving photocell, can considers to increase some simple settings improving the light income of its shady face, thereby further improve its generating efficiency.
Summary of the invention
Goal of the invention: The present invention be directed to existing double-sided solar battery, receive the not enough problem of light rate, on the basis of existing technology, provide a kind of simple and effective way, can increase substantially the generating efficiency of double-sided solar battery to its shady face.
Technical scheme: this technical scheme comprises reflecting system and support system, and wherein said reflecting system is made up of a series of optical elements, is used for sunlight is reflexed to two-sided battery shady face; The automatic tracking system of said reflecting system and photovoltaic array is synchronous, gets into backlight of solar cell all the time at a certain angle to guarantee reflection ray; Said support system can arrange reflecting system with definite shape, angle and distance, to realize the function of reflecting system in order to the supporting reflex system.
To be reflecting system be made up of four perpendicular planes of reflection successively one of them preferred version; This system installs at a certain angle and can guarantee also can vertically inject the shady face of solar cell with identical intensity perpendicular to the light of solar battery front side after reflection.
The plane of reflection wherein can adopt flexible material, realize like plating reflective coatings such as plastic film, nylon cloths.This composition is rack-mount, and is with low cost and weight is lighter, not high to the requirement of strength of support.
The plane of reflection wherein also can adopt glass, plastics and other organic material plating reflectance coating to realize that this assembly cost is higher, and the tracing system and the load intensity of support are had relatively high expectations, and can resist than rugged environment.
One of them preferred version for support system with reflecting system according to setting mutual angle, being mounted and fixed on the tracing system of photovoltaic array with the angle of double-sided solar photovoltaic array and with the distance of double-sided solar photovoltaic array, with the shared same tracing system of photovoltaic array.
Wherein another preferred version is for to separate reflecting system and double-sided solar photovoltaic array, and the independent cover tracing system similar with photovoltaic array of using makes the track of reflecting system and photovoltaic array synchronous.
Useful achievement:,, make its shady face will be well below the front to the contribution of energy output because its shady face light income is not enough for double-sided solar battery.With the HIT battery, horizontal positioned, its generating efficiency receives light to improve 10% than single face, and heavily fortified point is directly placed, and its generating efficiency improves 34%.Adopt after the system of present technique scheme; Can guarantee its back side light income with positive identical, the raising of its light income is 100% with respect to common single face solar cell; With respect to not adopting any device to increase the system of shady face light income, it improves also between 50% to 80%.Sun tracking system solar battery front side energy output is compared with the ordinary fixed system, and its efficient increases about 40%.And after adopting synchronous present design, mean that also can there be identical increase efficient at the back side of two-sided battery.Simultaneously, because the surface of solar module can reflect away part light, especially with respect to the solar module surface that does not have anti-reflection film, for the front, such light can be wasted.And for the assembly of shady face since this system can the light that reflects away once more the reflected back shady face be used, in fact play a kind of sunken light.This will make the shady face of solar cell higher than positive generating efficiency.Consider with regard to this situation; For the friendly area of environment, when the photovoltaic module reflection loss is higher, even consider the sensitive surface of battery component is installed in the side back to the sun for the single face solar module; And the technical scheme of employing this programme, also have certain advantage.
Wherein, With respect to the friendly area of environment, can adopt flexible Coating Materials to serve as reflecting surface, not only cost is very cheap; Install also very simple; Because its very light weight,, be entirely simple and mechanical structure as long as it is just passable with the enough backing material of intensity system and photovoltaic array to be fixed together.
With respect to having the friendly area of non-ambient such as severe storm, hail, select for use the intensity higher material to do reflecting surface, like toughened glass, high strength organic material etc.,, adopt autonomous system comparatively suitable because its quality is heavier.Owing to be that which kind of material is done mirror surface no matter, its cost and weight all will be far below complex process, need the double-sided solar battery assembly of the tight protection of multilayer material.So its support system intensity will be far smaller than double-sided solar main body photovoltaic system.Simultaneously because synchronous with photovoltaic system; Its structure also should be identical with control system, do not need the design work of unnecessary complicacy, can select identical system; Also can optimize aspect the specification selection of material and element, with its installation cost of further reduction.
Description of drawings
Enhanced system and photovoltaic array orientation sketch map that accompanying drawing is formed for the plane reflection element
Embodiment:
This patent scheme comprises reflecting system and support system, and wherein said reflecting system is made up of a series of optical elements, is used for sunlight is reflexed to two-sided battery shady face; The automatic tracking system of said reflecting system and photovoltaic array is synchronous, gets into backlight of solar cell all the time at a certain angle to guarantee reflection ray; Said support system can arrange reflecting system with definite shape, angle and distance, to realize the function of reflecting system in order to the supporting reflex system.
Wherein shown in accompanying drawing preferred version to be reflecting system be made up of four perpendicular planes of reflection 1,2,3,4 successively; 1,4 not line and plane parallel of double-sided solar battery photovoltaic array 5 of end wherein; Visible by diagram; When sunlight vertical irradiation during to the front surface of photovoltaic array 5, the reflection ray intensity that its shady face is accepted equates with it.
Such design has made full use of in the automatic tracking system; Sunlight is with respect to the isogonal situation of photovoltaic array; Adopting under simple structure and the lower-cost situation; Made full use of the two-sided characteristics that receive light of double-sided solar battery assembly, made the shady face that mainly can only utilize the low light level originally, be strengthened to the high efficiency consistent with the front energy output.The cell panel that really double-sided solar battery is equal to two common single face same structures.Simultaneously, because automatic tracking system makes shady face when being equivalent to the normal optical photovoltaic array, 40% generating efficiency increase is arranged simultaneously also.Especially can adopt the solar battery array of sharing support system for environmental friendliness, its advantage is more outstanding.To come with concrete example this patent scheme is explained below, make it to become more clear.
Embodiment one:
Being of a size of 2 * 2 HIT solar module with a block assembly is example; Can calculate every reflecting surface by the angle in the accompanying drawing and be of a size of 1.14 * 2, consider in the practice angular error that the error of tracing system causes; Its size is pressed 1.5 times of amplifications of safety factor; It is of a size of 1.7 * 3, adopts the plastics aluminizer as reflecting surface, adopts fixedly aluminium film formation reflecting surface of aluminium frame; Wherein the aluminium frame can be four reflecting surface integral types, also can fix and be assembled to above the support respectively.Around aluminium chassis, draw the support of some roads then, it frame supporting construction with two-sided battery component is fixed together.
Because reflecting surface is a plastic material, weight is extremely light, in such design system, can consider.As long as according to the climatic condition of concrete location, the intensity that makes support strength can resist air blast gets final product.Because the distance of this structure and photovoltaic module is as long as can satisfy convenient the installation and maintenance, with the close of photovoltaic module, in fact most current rate can be blocked for photovoltaic module, and is not powerful to the system shock in the present design.
In the present embodiment; Only with the simplest plated film plastics and mechanical support; Can realize that the institute described in the present design has superiority; The generating efficiency of the double-sided solar battery of tracking type automatically photovoltaic system is improved 100% compared with the single face solar cell of identical systems and structure, improve 30% to 40% generating efficiency compared with double-sided solar battery photovoltaic system without this structure.
Embodiment two:
Being of a size of 1.5 * 0.6 two-sided amorphous silicon solar cell module with a block assembly is example; Can calculate every reflecting surface by the angle in the accompanying drawing and be of a size of 0.3 * 1.5, consider in the practice angular error that the error of tracing system causes; Its size is pressed 1.2 times of amplifications of safety factor; It is of a size of 0.4 * 1.8, adopts the toughened glass aluminizer as reflecting surface, adopts aluminium frame fixedly tempering such as accompanying drawing structure formation reflecting surface; Wherein the aluminium frame can be four reflecting surface integral types, also can fix and be assembled to above the support respectively.According to the design of solar battery array support system, one group of mechanical support frame of same installation and rotation axis, stepping motor etc. at the solar battery array back side, its solar tracker can be shared through control circuit and photovoltaic array.
Present embodiment relatively is applicable to the extremely abominable and abundant area of sunlight of weather; Toughened glass has the extremely strong boisterous ability of storm hail and so on of resisting, and can adopt identical machinery and drive mechanism with photovoltaic array, because in present design; The weight of reflecting element is similar with the weight of photovoltaic module; And nearly 2/3rds area can receive the protection of photovoltaic module, so can adopt structure much at one, saving is designed program.Solar tracker and utmost point control circuit part then can be shared, and have saved material on the one hand, have reduced cost, help also guaranteeing that both are synchronous fully simultaneously.
This patent scheme provides a kind of design that strengthens the system of double-sided solar battery generating efficiency; The concrete method of this scheme and the approach of realizing also has a lot, and the above only is the preferred implementation of this patent scheme, should be understood that; For those skilled in the art; Under the prerequisite that does not break away from this patent scheme principle, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection range of patent scheme.The all available prior art of each part not clear and definite in the present embodiment realizes.
Claims (6)
1. a system that strengthens the double-sided solar battery generating efficiency comprises reflecting system, support system, it is characterized in that:
Reflecting system is made up of a series of optical elements, is used for sunlight is reflexed to two-sided battery shady face;
The automatic tracking system of reflecting system and photovoltaic array is synchronous, gets into backlight of solar cell all the time at a certain angle to guarantee reflection ray;
2. a kind of system that strengthens the double-sided solar battery generating efficiency according to claim 1; It is characterized in that said reflecting system is made up of four perpendicular planes of reflection successively; This system installs at a certain angle and can guarantee can vertically inject the shady face of solar cell too with identical intensity perpendicular to the light of solar battery front side after reflection.
3. according to claim 1 and the described a kind of system that strengthens the double-sided solar battery generating efficiency of claim 2; It is characterized in that the plane of reflection is made up of the flexible material that is coated with the film with reflex, so that when realizing reflection function, also realize the optimization of cost.
4. a kind of system that strengthens the double-sided solar battery generating efficiency according to claim 1 is characterized in that adopting simple mechanical support, and it is fixed on above the automatic tracking system of double-sided solar battery array by required angle and distance.
5. a kind of system that strengthens the double-sided solar battery generating efficiency according to claim 1; It is characterized in that to adopt fully independently system's realization tracking automatically of a cover; But synchronous with the automatic tracking system of solar array, synchronous all the time with the shady face that guarantees reflecting system and sunlight and solar cell.
6. according to claim 1 and the described a kind of system that strengthens the double-sided solar battery generating efficiency of claim 2; It is characterized in that said optical element can be produced by plated films such as glass or plastics, also more can adapt to rugged environment when realizing reflection function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011101137864A CN102761293A (en) | 2011-04-25 | 2011-04-25 | System for enhancing generating efficiency of two-sided solar battery |
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| CN2011101137864A CN102761293A (en) | 2011-04-25 | 2011-04-25 | System for enhancing generating efficiency of two-sided solar battery |
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| CN102761293A true CN102761293A (en) | 2012-10-31 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300893A (en) * | 2014-08-18 | 2015-01-21 | 杭州慈源科技有限公司 | Double-sided power generation solar battery assembly with polygonal structure |
| CN104300897A (en) * | 2014-08-18 | 2015-01-21 | 杭州慈源科技有限公司 | Multi-block double-sided power generation solar battery assembly |
| CN105186978A (en) * | 2015-09-25 | 2015-12-23 | 李雨洁 | Photovoltaic panel arrangement structure |
| CN106602993A (en) * | 2017-01-04 | 2017-04-26 | 河北荣森新能源科技有限公司 | Power generation system for improving generating capacity of solar panel by changing sunlight spreading direction |
| CN106911302A (en) * | 2017-03-03 | 2017-06-30 | 广东爱康太阳能科技有限公司 | A kind of double-sided solar electricity generation system |
| CN106921341A (en) * | 2017-03-03 | 2017-07-04 | 广东爱康太阳能科技有限公司 | A kind of double-sided solar battery electricity generation system waterborne |
| CN107340785A (en) * | 2016-12-15 | 2017-11-10 | 江苏林洋新能源科技有限公司 | A kind of double side photovoltaic battery component tracks method and controller based on intelligentized control method |
| CN108233862A (en) * | 2017-12-18 | 2018-06-29 | 郭舒洋 | A kind of small-sized concentrating solar power generating device |
| CN108336966A (en) * | 2018-04-13 | 2018-07-27 | 苏州中来新能源有限公司 | A kind of two-sided photovoltaic generating system |
| JP2020141505A (en) * | 2019-02-28 | 2020-09-03 | 京セラ株式会社 | Photovoltaic power generation system and photovoltaic power generation equipment |
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2011
- 2011-04-25 CN CN2011101137864A patent/CN102761293A/en active Pending
Patent Citations (4)
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| JPH02119587A (en) * | 1988-10-25 | 1990-05-07 | Nec Corp | Solar battery power source system |
| CN101388625A (en) * | 2007-09-10 | 2009-03-18 | 上海华达运新能源科技有限公司 | Solar concentration electricity generating apparatus |
| CN101404469A (en) * | 2008-07-09 | 2009-04-08 | 东南大学 | Secondary reflection concentrating photovoltaic power generation system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300893A (en) * | 2014-08-18 | 2015-01-21 | 杭州慈源科技有限公司 | Double-sided power generation solar battery assembly with polygonal structure |
| CN104300897A (en) * | 2014-08-18 | 2015-01-21 | 杭州慈源科技有限公司 | Multi-block double-sided power generation solar battery assembly |
| CN105186978A (en) * | 2015-09-25 | 2015-12-23 | 李雨洁 | Photovoltaic panel arrangement structure |
| CN107340785A (en) * | 2016-12-15 | 2017-11-10 | 江苏林洋新能源科技有限公司 | A kind of double side photovoltaic battery component tracks method and controller based on intelligentized control method |
| CN106602993A (en) * | 2017-01-04 | 2017-04-26 | 河北荣森新能源科技有限公司 | Power generation system for improving generating capacity of solar panel by changing sunlight spreading direction |
| CN106911302A (en) * | 2017-03-03 | 2017-06-30 | 广东爱康太阳能科技有限公司 | A kind of double-sided solar electricity generation system |
| CN106921341A (en) * | 2017-03-03 | 2017-07-04 | 广东爱康太阳能科技有限公司 | A kind of double-sided solar battery electricity generation system waterborne |
| CN108233862A (en) * | 2017-12-18 | 2018-06-29 | 郭舒洋 | A kind of small-sized concentrating solar power generating device |
| CN108336966A (en) * | 2018-04-13 | 2018-07-27 | 苏州中来新能源有限公司 | A kind of two-sided photovoltaic generating system |
| CN108336966B (en) * | 2018-04-13 | 2023-09-26 | 上海中来智慧新能源有限公司 | Double-sided photovoltaic power generation system |
| JP2020141505A (en) * | 2019-02-28 | 2020-09-03 | 京セラ株式会社 | Photovoltaic power generation system and photovoltaic power generation equipment |
| JP7206133B2 (en) | 2019-02-28 | 2023-01-17 | 京セラ株式会社 | Photovoltaic power generation system and photovoltaic power generation device |
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Application publication date: 20121031 |