CN101404469A - Secondary reflection concentrating photovoltaic power generation system - Google Patents
Secondary reflection concentrating photovoltaic power generation system Download PDFInfo
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- CN101404469A CN101404469A CNA2008100223201A CN200810022320A CN101404469A CN 101404469 A CN101404469 A CN 101404469A CN A2008100223201 A CNA2008100223201 A CN A2008100223201A CN 200810022320 A CN200810022320 A CN 200810022320A CN 101404469 A CN101404469 A CN 101404469A
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- solar module
- secondary reflection
- mirror
- power generation
- photovoltaic power
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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
Abstract
The invention discloses a secondary reflection concentrating photovoltaic generating system, relates to a concentrating photovoltaic generating system, and belongs to the technical field of solar energy utilization. The system comprises a solar module which is provided with a radiator at the back, an optical collector and an automatic follow sun device which is provided with the solar module and the optical collector; the optical collector comprises a reflecting mirror which is arranged at the two sides of the solar module according to preset angles respectively and forms a V-shaped groove with the solar module; wherein, the solar module is arranged at the bottom of the V-shaped groove; the optical mirror also comprises a secondary reflecting mirror which can reflect the sunlight onto the solar module, and a primary reflecting mirror which can reflect the sunlight onto the secondary reflecting mirror; wherein, the secondary reflecting mirror is arranged laterally above the solar module, and the primary reflecting mirror is arranged beside the solar module. The technical scheme provided by the invention can lead the solar module with the same area to acquire more electric energy, which can not only reduce the cost, but also save the raw material.
Description
Technical field
The present invention relates to a kind of photovoltaic power generation apparatus, particularly a kind of secondary reflection concentrating photovoltaic power generation system belongs to technical field of solar utilization technique.
Background technology
The exploitation of solar photovoltaic technology starts from the 1950's, under the support energetically of national governments, photovoltaic industry development rapidly, the annual average rate of increase of nearest 10 years solar cells and assembly production reaches 33%, nearest 5 years annual average rate of increase reaches 43%.Solar energy power generating can occupy the important seat of world energy sources consumption in the near future, not only will substitute the part conventional energy resource, and will become the main body of world energy supplies.According to the prediction of European JRC, to the year two thousand thirty regenerative resource in the total energy structure, account for more than 30%, solar energy power generating reaches more than 10% in the supply of world's total electricity; The year two thousand forty, regenerative resource accounted for total energy consumption more than 50%, and solar energy power generating will account for more than 20% of human total electricity demand; To 21 century Mo regenerative resource in energy resource structure, account for more than 80%, solar power generation accounts for more than 60%, demonstrates important strategic status.
Restriction solar energy power generating large-scale application bottleneck is a photovoltaic generating system cost of investment height, the concentrating photovoltaic power generation technology is the effective way that reduces cost, its main purpose is by following the tracks of and optically focused, increase the intensity of illumination that solar cell is accepted, increase energy output, be equivalent to partly substitute expensive semi-conducting material with cheap materials such as metal glass.
Application number is 200520076826.2, name be called " slot type reflective concentration photo Blast Furnace Top Gas Recovery Turbine Unit (TRT) " patent disclosure a kind of photovoltaic generating system that adopts V-shaped groove optically focused, this technical scheme has higher utility.But the applicant is through further investigation, and finding can also further increase the intensity of illumination that solar cell is accepted through technological improvement, increases the unit are energy output.
Summary of the invention
Technical problem: the objective of the invention is to propose a kind of design ingenious, be easy to make, secondary reflection concentrating photovoltaic power generation system with low cost, increase the intensity of illumination that solar module receives, thereby the increase energy output, the cost performance of raising photovoltaic generating system.
Technical scheme: secondary reflection concentrating photovoltaic power generation system of the present invention comprises the auto-tracking sun device of solar module, concentrator, installation solar module and concentrator, described concentrator comprises by predetermined angular and is respectively in the solar module both sides, forms the speculum of V-shaped groove with solar module that wherein solar module is positioned at the bottom of V-shaped groove speculum; Described concentrator also comprise with sunlight reflex on the solar module the secondary reflection mirror and corresponding with it, sunlight is reflexed to primary event mirror on the secondary reflection mirror, wherein the secondary reflection mirror is installed on the top of solar module, and the primary event mirror is installed on the solar module next door.
The corresponding two row primary event mirrors of one row of described secondary reflection mirror, each row primary event mirror all reflexes to sunlight on the corresponding different solar modules by described secondary reflection mirror.
Described secondary reflection mirror is corresponding one by one with the primary event mirror, and each row primary event mirror reflexes to sunlight on the same solar module by the secondary reflection mirror of correspondence.
The width of the sunray of described secondary reflection mirroring is greater than the width of solar module.
Beneficial effect: the present invention adopts common plane mirror, by structural design cleverly, make the light of every row mirror reflects all shine on the solar module of a corresponding side equably, the width of irradiation light equates with the width of this solar module, thereby the realization light-focusing function has and makes simple, cheap remarkable advantage.The present invention by employing be easy to make, concentrator with low cost follows the tracks of the sun, increased the solar light irradiation intensity that solar cell is accepted, under the situation that obtains same electric energy, the consumption of solar cell only is the part of fixed type photovoltaic power generation system, and the cost of the tracing collection mechanism that increases is far below the cost of the solar cell of being saved, therefore significantly reduce overall cost, improved cost performance.
Description of drawings
The present invention will be further described below in conjunction with accompanying drawing and exemplary embodiments.
Fig. 1 is the structural representation of the embodiment of the invention one.
Fig. 2 is the structural representation of the embodiment of the invention two.
Fig. 3 is the structural representation of the embodiment of the invention three.
Wherein have: the back has solar module 1, concentrator, V-shaped groove speculum 2, secondary reflection mirror 3, the primary event mirror 4 of radiator.
Embodiment
Secondary reflection concentrating photovoltaic power generation system comprises that the back has the solar module of radiator, concentrator, the auto-tracking sun device of solar module and concentrator is installed, described concentrator comprises by predetermined angular and is respectively in the solar module both sides, speculum with solar module formation V-shaped groove, wherein solar module is positioned at the bottom of V-shaped groove, its improvements are: described concentrator also comprises sunlight is reflexed to secondary reflection mirror on the solar module and corresponding with it, sunlight is reflexed to primary event mirror on the secondary reflection mirror, wherein the secondary reflection mirror is installed on solar module side top, and the primary event mirror is installed on the solar module next door.
Embodiment one:
The secondary reflection concentrating photovoltaic power generation system of present embodiment comprises that the back has the auto-tracking sun device of the solar module 1 of radiator, concentrator, installation solar module 1 and concentrator as shown in Figure 1.
As shown in Figure 1, concentrator is made up of two groups of V-shaped groove speculums 2 and one group of secondary reflection mirror 3, and wherein, V-shaped groove speculum 2 is V-shape by predetermined angular and is respectively in solar module 1 both sides, and solar module 1 is positioned at the bottom of V-shaped groove; Two primary event mirrors 4 reflex to sunlight on the secondary reflection mirror 3, secondary reflection mirror 3 reflexes to sunlight on the solar module 1, secondary reflection mirror 3 is installed on solar module 1 side top, and primary event mirror 4 is installed on the next door of solar module 1.
During secondary reflection concentrating photovoltaic power generation system work, auto-tracking sun device drives solar module 1 and concentrator motion, make solar module and concentrator all the time over against the sun, impinge perpendicularly on the V-shaped groove speculum sunlight directly by the V-shaped groove mirror reflects to solar module, the sunlight on the primary event mirror converges on the solar module after the secondary reflection mirroring in the secondary reflection mirror and impinge perpendicularly on.In order to make the light of every row mirror reflects all shine equably on the solar module of a corresponding side, the width of irradiation light is greater than the width of this solar module.
Like this, solar cell is directly changed into electric energy with solar energy by opto-electronic conversion, generates electricity by way of merging two or more grid systems by combining inverter then or offers charge in batteries.
The concentrator of present embodiment is easy to manufacturing, with low cost, and therefore the cost of the feasible tracing collection mechanism that increases has significantly reduced overall cost far below the cost of the solar cell of being saved, and has improved the cost performance of light gathering photovoltaic power generating system.
Embodiment two:
The secondary reflection concentrating photovoltaic power generation system of present embodiment and embodiment one is identical substantially, and its main distinction is: this secondary reflection concentrating photovoltaic power generation system is made up of one group of V-shaped groove speculum 2, two groups of primary event mirrors 4 and two groups of secondary reflection mirrors 3.
As shown in Figure 2, concentrator is made up of one group of V-shaped groove speculum 2, two groups of primary event mirrors 4 and two groups of secondary reflection mirrors 3, wherein, two secondary reflection mirrors 3 are installed on the top, both sides of solar module 1, and two primary event mirrors 4 are installed on the both sides of solar module 1.
The concentrator structure of present embodiment is more simple, effectively reduces the light gathering photovoltaic power generating system cost, has improved cost performance.
Embodiment three:
The secondary reflection concentrating photovoltaic power generation system of present embodiment is identical substantially with embodiment two, and its main distinction is: this secondary reflection concentrating photovoltaic power generation system is made up of one group of V-shaped groove speculum, one group of secondary reflection mirror, one group of primary event mirror.
As shown in Figure 3, concentrator is made up of one group of V-shaped groove speculum 2, one group of secondary reflection mirror 3, one group of primary event mirror 4, wherein, secondary reflection mirror 3 is positioned at a side of solar module 1, this secondary reflection mirror 3 is made up of a primary event mirror 4 and a secondary reflection mirror 3, secondary reflection mirror 3 is installed on the side top of solar module 1, and primary event mirror 4 is installed on the next door of solar module 1.
In addition to the implementation, the present invention can also have other execution mode.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of requirement of the present invention.
Claims (4)
1. secondary reflection concentrating photovoltaic power generation system, comprise solar module (1), concentrator, the auto-tracking sun device of solar module and concentrator is installed, described concentrator comprises by predetermined angular and is respectively in the solar module both sides, speculum (2) with solar module formation V-shaped groove, wherein solar module (1) is positioned at the bottom of V-shaped groove speculum (2), it is characterized in that: described concentrator also comprises sunlight is reflexed to secondary reflection mirror (3) on the solar module (1) and corresponding with it, sunlight is reflexed to primary event mirror (4) on the secondary reflection mirror (3), wherein secondary reflection mirror (3) is installed on the top of solar module (1), and primary event mirror (4) is installed on solar module (1) next door.
2. secondary reflection concentrating photovoltaic power generation system according to claim 1, it is characterized in that: the corresponding two row primary event mirrors (4) of row of described secondary reflection mirror (3), each row primary event mirror (4) all reflexes to sunlight on the corresponding different solar modules (1) by described secondary reflection mirror (3).
3. secondary reflection concentrating photovoltaic power generation system according to claim 1, it is characterized in that: described secondary reflection mirror (3) is corresponding one by one with primary event mirror (4), and each row primary event mirror (4) reflexes to sunlight on the same solar module (1) by corresponding secondary reflection mirror (3).
4. according to claim 2 or 3 described secondary reflection concentrating photovoltaic power generation systems, it is characterized in that: the width of the sunray of described secondary reflection mirror (3) reflection is greater than the width of solar module (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100223201A CN101404469A (en) | 2008-07-09 | 2008-07-09 | Secondary reflection concentrating photovoltaic power generation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100223201A CN101404469A (en) | 2008-07-09 | 2008-07-09 | Secondary reflection concentrating photovoltaic power generation system |
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| CN101404469A true CN101404469A (en) | 2009-04-08 |
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| CNA2008100223201A Pending CN101404469A (en) | 2008-07-09 | 2008-07-09 | Secondary reflection concentrating photovoltaic power generation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102034886A (en) * | 2010-10-15 | 2011-04-27 | 北京工业大学 | Secondary spotlighting solar photovoltaic device |
| CN102684558A (en) * | 2011-12-12 | 2012-09-19 | 苏州科雷芯电子科技有限公司 | Device for improving solar power generation efficiency |
| CN102761293A (en) * | 2011-04-25 | 2012-10-31 | 刘莹 | System for enhancing generating efficiency of two-sided solar battery |
| CN110855234A (en) * | 2019-12-13 | 2020-02-28 | 吕晨康 | Solar power generation device |
-
2008
- 2008-07-09 CN CNA2008100223201A patent/CN101404469A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102034886A (en) * | 2010-10-15 | 2011-04-27 | 北京工业大学 | Secondary spotlighting solar photovoltaic device |
| CN102034886B (en) * | 2010-10-15 | 2012-05-23 | 北京工业大学 | Secondary spotlighting solar photovoltaic device |
| CN102761293A (en) * | 2011-04-25 | 2012-10-31 | 刘莹 | System for enhancing generating efficiency of two-sided solar battery |
| CN102684558A (en) * | 2011-12-12 | 2012-09-19 | 苏州科雷芯电子科技有限公司 | Device for improving solar power generation efficiency |
| CN110855234A (en) * | 2019-12-13 | 2020-02-28 | 吕晨康 | Solar power generation device |
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Open date: 20090408 |