CN205123673U - Compound plane in two planes spotlight ware based on CPC design - Google Patents
Compound plane in two planes spotlight ware based on CPC design Download PDFInfo
- Publication number
- CN205123673U CN205123673U CN201520919982.4U CN201520919982U CN205123673U CN 205123673 U CN205123673 U CN 205123673U CN 201520919982 U CN201520919982 U CN 201520919982U CN 205123673 U CN205123673 U CN 205123673U
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- China
- Prior art keywords
- concentrator
- board
- composite plane
- angle
- spotlight
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- 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.)
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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
- Y02E10/52—PV systems with concentrators
Abstract
The utility model discloses a compound plane in two planes spotlight ware based on CPC design comprises compound plane spotlight reflecting plate, solar cell panel, support and glass apron, every group compound plane spotlight ware contains two compound reflecting boards, and every compound plane spotlight reflecting plate comprises two sets of planes, this complex plane spotlight ware only needs annual 4 inclinations of adjustment can obtain excellent optical property, and for CPC spotlight ware, the solar radiation that compound plane spotlight ware assembled on the solar cell panel is more even, this generating efficiency that has effectively improved solar battery, and compound plane spotlight ware processing simple manufacture, and the cost is also lower. This technique belongs to non -tracking low power solar energy spotlight technical field.
Description
Technical field
The utility model relates to a kind of annual two Planar Compound planar concentrating devices that only need adjust four inclination angles designed based on compound parabolic concentrator (CPC), belongs to non-tracking low range Salar light-gathering technical field.
Background technology
All the time, solar cell cost is higher is the resistance of photovoltaic system large-scale promotion in actual applications, and solar cell is as the main element of photovoltaic system, and its high cost, also makes the cost of photovoltaic generation remain high.The people such as Whitfield find after deliberation, and concentrator solar cell its electricity conversion under the light intensity higher than normal sunlight irradiation is more much higher than the electricity conversion under the light intensity of natural sunlight irradiation.Because the density of solar radiation is lower, be strengthen intensity of solar radiation, Salar light-gathering technology is arisen at the historic moment thus, the utilization that simultaneously can also realize solar energy high temperature field by light condensing technology.On the other hand, if power output is identical, adopts the quantity of the solar cell needed for photovoltaic system of condenser system will be less than the quantity of the conventional solar cell needed for photovoltaic system, this reduces the system cost of photovoltaic generation.Current comparatively people be familiar with and study more several solar concentrators having: slot-type optical collector, dish-style concentrator, tower concentrator, Fresnel optical collector and the non-imaging concentrator being representative with compound parabolic concentrator (CPC).And front four kinds of condenser systems are tracking mode condenser system, although have higher focusing ratio, complex structure, cost is higher, is difficult to safeguard and tracking system can consume certain electric energy causes systems generate electricity efficiency to reduce.And CPC need not follow the tracks of, only need do seasonal Inclination maneuver can reach good spotlight effect, is more satisfactory low power condensing device.But compound parabolic concentrator reflecting surface radian is difficult to manufacture, and adds cost, and due to the optical property of concentrator itself, it converges in luminous flux on absorber and solar cell and uneven, this reduces the generating efficiency of solar cell.For these defects, two Planar Compound planar concentrating devices in this patent, two groups of plane reflection faces are used to replace composite parabolic reflecting surface, obtain optimized dimensional structure by calculating and optimum experimental, make its year lighting quantity reach 99.5% of corresponding desirable concentrator, and improve the light reduction of fractions to a common denominator cloth on solar cell, make light distribution more even, thus improve the generating efficiency of battery, and plane comparatively parabola be easier to manufacture, cost is lower.
Summary of the invention
The utility model is intended to the some shortcomings overcoming the existence of existing CPC concentrator, a kind of two Planar Compound planar concentrating devices based on CPC design are proposed, this composite plane concentrator can reach excellent optical property, and manufacture difficulty can be reduced largely, save material, significantly can also improve the uniformity coefficient of the light gathered on solar panel, efficiency of solar cell is improved.
The technical solution of the utility model is: a kind of two Planar Compound planar concentrating devices based on CPC design, are made up of composite plane light gathering baffle-board (1), solar panel (3), support (4) and glass cover-plate (2).It is characterized in that: described composite plane light gathering baffle-board (1) is fixed on support (4), described solar panel (3) is arranged on bottom concentrator absorber position and concentrator, and the sensitive surface of solar panel is towards the entrance of concentrator, described glass cover-plate covers above the lighting surface of all concentrators, between two adjacent reflecting plates, non-light path part is hollow, so that ventilation and heat; And relate to the light path part that light passes through and should close, enter to reduce dust; The angle of the normal (6) that described incidence angle (θ) is sunray (5) and concentrator lighting surface.
Above-mentioned composite plane light gathering baffle-board (1), design based on composite parabolic spotlight camber, it is characterized in that: composite plane light gathering baffle-board (1) is solid line in figure, each composite plane light gathering baffle-board (1) has two plane reflection faces, and CPC reflecting surface (7) is dotted line in figure; CPC reflecting surface (7) is a parabolic surface, is the architectural source of described composite plane light gathering baffle-board (1), but is not the structure of described composite plane light gathering reflector panel (1); The end points up and down (8,9) of described composite plane light gathering baffle-board (1) overlaps with the end points up and down of corresponding CPC reflecting surface (7); The flex point (10) of described composite plane light gathering baffle-board (1) on the CPC reflecting surface (7) of correspondence, the critical angle of its flex point (10) (
) should within the scope of 70.7 ° ~ 73 °.The equation of the CPC reflecting surface (7) that composite plane light gathering baffle-board (1) is corresponding is:
Wherein
for the reception half-angle of CPC reflecting surface,
, and press C
tthe focusing ratio brachymemma of=(1.89 ~ 1.99); Described
for the focusing ratio after the brachymemma of CPC concentrator, i.e. the ratio of the width of concentrator upper shed and the width of underlying absorbent body.
Above-mentioned composite plane concentrator must adjust inclination angle (β) at least four times every year, within 22 ~ 24 days before and after annual spring and fall equinoxes, adjust its inclination angle (β) for local geography dimensionality (λ), adjust its inclination angle (β) for λ-22 ° (± 1 °) in the summer half year on all the other dates, adjust its inclination angle (β) winter half year for λ+22 ° (± 1 °); Wherein λ is local geographic latitude; The concrete adjustment date can shift to an earlier date as the case may be or delay.
Above-mentioned composite plane light gathering baffle-board can use glass-mirror or mirror face stainless steel to make; Glass cover-plate can adopt the ultra-clear glasses or toughened glass that transmissivity is high; Cell panel adopts concentrator solar cell; Support can adopt other forms, but all should adjustable inclination.
Operation principle of the present utility model is: after the corresponding date adjusts inclination angle, solar radiation enters the lighting surface of composite plane concentrator through glass cover-plate, a part shines directly on solar panel, a part is via after the reflection of composite plane light gathering baffle-board, arrive on solar panel, the most solar radiations incided on whole concentrator lighting surface directly or are after reflection absorbed by solar panel, the solar radiant energy that solar panel receives is multiplied, and the composite plane concentrator focusing ratio in the utility model is between 1.89 ~ 1.99; The electric energy that solar cell sends can be stored in storage battery after rectification, also can generate electricity by way of merging two or more grid systems after inverter.
The beneficial effects of the utility model are: through experiment and calculating, composite plane concentrator in the utility model has the optical property not being weaker than existing CPC concentrator, and the light flux distribution that solar radiation converges on solar panel through composite plane concentrator is more even, this effectively can improve the generating efficiency of concentrating solar battery while improving concentrator solar cell power, lighting quantity can reach 99.5% of corresponding CPC concentrator composite plane concentrator year as calculated, and composite plane concentrator greatly reduces relative to CPC concentrator manufacture difficulty, and more save material, reduce cost.
Accompanying drawing explanation
Fig. 1 is the utility model system construction drawing;
Fig. 2 is in the utility model practical application, the making form figure of left end reflecting plate;
Fig. 3 is in the utility model practical application, the making form figure of mid portion reflecting plate;
Fig. 4 is in the utility model practical application, the making form figure of right-hand member reflecting plate;
Fig. 5 is the reflecting plate detail view of the utility model two Planar Compound planar concentrating device.
Each label in figure: 1-composite plane light gathering baffle-board, 2-glass cover-plate, 3-solar cell, 4-adjustable inclination angle support, 5-sunray, the normal of 6-concentrator lighting surface, reference compound parabolic concentrator (CPC) reflecting surface that 7-is corresponding, the upper extreme point of 8-composite plane light gathering baffle-board, the lower extreme point of 9-composite plane light gathering baffle-board, 10-forms the intersection point of two planes of reflection of composite plane light gathering baffle-board, the incidence angle of θ-solar radiation, the inclination angle of β-concentrator
-composite plane spotlight camber two plane point of intersection critical angle of incidence.
Embodiment
Based on two Planar Compound planar concentrating devices of CPC design, be made up of composite plane light gathering baffle-board (1), solar panel (3), support (4) and glass cover-plate (2); Composite plane spotlight camber (1) is fixed on support (4), support (4) can adjustable inclination (β), described solar panel (3) is arranged on bottom concentrator absorber position and concentrator, and the sensitive surface of solar panel is towards the entrance of concentrator, described glass cover-plate (2) covers on the lighting surface of all concentrators, between two adjacent reflectings surface, non-light path part is hollow, so that ventilation and heat; And relate to the light path part that light passes through and should close, enter to reduce dust.
Embodiment 1
A kind of two Planar Compound planar concentrating devices based on CPC design, after the corresponding date adjusts inclination angle by adjustable inclination angle support (4), solar radiation projects on the lighting surface of composite plane concentrator through glass cover-plate (2), and incidence angle is in reception half angle, part solar radiation shines directly on solar panel (3), part solar radiation is irradiated on composite plane light gathering baffle-board (1), arrive on solar panel (3) through reflection, the most solar radiations incided on whole concentrator lighting surface directly or are after reflection absorbed by solar panel, the solar radiant energy that solar panel receives is multiplied, solar radiation is converted into electric energy by solar panel, can be stored in storage battery after rectification, also can generate electricity by way of merging two or more grid systems after inverter.
Embodiment 2
Described composite plane concentrator adjusts inclination angle (β) four times every year by support (4), 22-24 days before and after annual spring and fall equinoxes adjust its inclination angle (β) is λ, adjust its inclination angle (β) for λ-22 ° (± 1 °) in the summer half year on all the other dates, adjust its inclination angle (β) winter half year for λ+22 ° (± 1 °); Wherein λ is local geographic latitude, and the concrete adjustment date can shift to an earlier date as the case may be or delay, thus ensures that the incidence angle (θ) of solar radiation is all the time in the reception half-angle of composite plane concentrator.
Claims (3)
1., based on two Planar Compound planar concentrating devices of CPC design, be made up of composite plane light gathering baffle-board (1), solar panel (3), support (4) and glass cover-plate (2); It is characterized in that: described composite plane light gathering baffle-board (1) is fixed on support (4), described solar panel (3) is arranged on bottom concentrator absorber position and concentrator, and the sensitive surface of solar panel is towards the entrance of concentrator, described glass cover-plate (2) covers the entrance top of all concentrators, between two adjacent reflecting plates, non-light path part is hollow, so that ventilation and heat; And relate to the light path part that light passes through and should close, enter to reduce dust; The angle of the normal (6) that incidence angle (θ) is sunray (5) and concentrator lighting surface.
2. two Planar Compound planar concentrating devices according to claim 1, its composite plane light gathering baffle-board (1) designs based on the reflecting surface (7) of compound parabolic concentrator, it is characterized in that: each composite plane light gathering baffle-board (1) has two plane reflection faces; Reflecting surface (7) is a parabolic surface, is the architectural source of described composite plane light gathering baffle-board (1); The end points up and down (8,9) of described composite plane light gathering baffle-board (1) overlaps with the end points up and down of corresponding reflecting surface (7); The flex point (10) of described composite plane light gathering baffle-board (1) on the reflecting surface (7) of correspondence, the critical angle of its flex point (10) (
) within the scope of 70.7 ° ~ 73 °; In rectangular coordinate system, the equation of the reflecting surface (7) that monomer composite plane light gathering baffle-board (1) is corresponding is:
Wherein
for the reception half-angle of CPC reflecting surface,
, and press C
tthe focusing ratio brachymemma of=(1.89 ~ 1.99), described in
for the focusing ratio after the brachymemma of CPC concentrator, i.e. the ratio of the width of concentrator upper shed and the width of underlying absorbent body.
3. two Planar Compound planar concentrating devices according to claim 1, also include angle of inclination beta, must adjust inclination angle (β) at least four times every year, it is characterized in that: inclination angle (β) is as the solar panel (3) of absorber and the angle of horizontal plane; Within 22 ~ 24 days before and after annual spring and fall equinoxes, adjust its inclination angle (β) for local geography dimensionality, adjust its inclination angle (β) for local geographic latitude-22 ° (± 1 °) in the summer half year on all the other dates, adjust its inclination angle (β) winter half year for local geographic latitude+22 ° (± 1 °).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520919982.4U CN205123673U (en) | 2015-11-18 | 2015-11-18 | Compound plane in two planes spotlight ware based on CPC design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520919982.4U CN205123673U (en) | 2015-11-18 | 2015-11-18 | Compound plane in two planes spotlight ware based on CPC design |
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| Publication Number | Publication Date |
|---|---|
| CN205123673U true CN205123673U (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520919982.4U Expired - Fee Related CN205123673U (en) | 2015-11-18 | 2015-11-18 | Compound plane in two planes spotlight ware based on CPC design |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659261A (en) * | 2017-10-12 | 2018-02-02 | 大连理工大学 | A kind of non-tracking asymmetric compound plane maximum reflection concentrator, design method and application |
| CN110120782A (en) * | 2019-05-13 | 2019-08-13 | 大连理工大学 | A kind of composite plane type bilateral concentrating photovoltaic photo-thermal component of non-tracking for building |
-
2015
- 2015-11-18 CN CN201520919982.4U patent/CN205123673U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659261A (en) * | 2017-10-12 | 2018-02-02 | 大连理工大学 | A kind of non-tracking asymmetric compound plane maximum reflection concentrator, design method and application |
| CN110120782A (en) * | 2019-05-13 | 2019-08-13 | 大连理工大学 | A kind of composite plane type bilateral concentrating photovoltaic photo-thermal component of non-tracking for building |
| CN110120782B (en) * | 2019-05-13 | 2023-12-15 | 大连理工大学 | Non-tracking composite planar double-side concentrating photovoltaic photo-thermal assembly for building |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20161118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |