CN101127373B - Solar thermal photovoltaic device for frequency division absorption - Google Patents
Solar thermal photovoltaic device for frequency division absorption Download PDFInfo
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- CN101127373B CN101127373B CN 200710132772 CN200710132772A CN101127373B CN 101127373 B CN101127373 B CN 101127373B CN 200710132772 CN200710132772 CN 200710132772 CN 200710132772 A CN200710132772 A CN 200710132772A CN 101127373 B CN101127373 B CN 101127373B
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- photocell
- mirror
- photovoltaic device
- solar thermal
- radiator
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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
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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
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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
- Y02E10/60—Thermal-PV hybrids
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Abstract
The utility model discloses a solar energy thermal photovoltaic device with frequency-dividing absorption, comprising a main reflector, a second-level reflector arranged between the main reflector and the focus of the main reflector; wherein a first-level photocell is positioned on the surface of the main reflector and a filter is pasted on the surface of the photocell; the thermal photovoltaic device comprising an absorber, a radiator and a photocell is arranged under the main reflector; a filter is pasted on the surface of the photocell and a condenser is positioned on the external surface of the photocell. The utility model adopts the two-level photoelectric conversion device so as to enhance absorption and conversion efficiency for the solar energy obviously as well as to increase thesystem efficiency and the total output electric power; the first-level photocell absorbs part of sunlight, which reduces the sunlight to the absorber and the heat load of the photocell; moreover the silicon battery absorbs part of sunlight firstly, which reduces the expense during the two reflection of the sunlight. The utility model can be applied in the aviation, astronautics, life fields and other fields, and can provide sufficient electric energy for the flight vehicle and the daily life.
Description
One technical field
The present invention relates to the direct reforming unit of a kind of photoelectricity, promptly is the hot photovoltaic devices of solar energy entire spectrum that a kind of frequency division absorbs.
Two background technologies
Solar thermal photovoltaic system (STPV) comes from ordinary hot photovoltaic system (TPV) and solar energy is converted into the photovoltaic system (PV) of electric energy, its principle is: assemble a large amount of sunlights by accumulator and add heat radiator, make radiator reach higher temperature, thereby externally send radiant energy.Between radiator and photocell, be provided with one deck filter, the radiant energy that as far as possible makes battery can transform in the wavelength band arrives battery by filter, and be converted into electric energy by photocell and externally export, the then filtered device reflected back of the energy that battery can't transform radiator is to utilize again, keep the higher temperature of radiator, to reduce the loss of energy.
The STPV system that U.S. EDTEK company makes, adopt the accumulator of cassegrain type, its solar energy gathers than being 1000: 1, this system is the hot photovoltaic system of mixed type, adopt the mode of the common heating of solar energy and fuel combustion, record when the radiator surface temperature is 1400 ℃, system effectiveness is 22.3%, and theoretical conversion efficient also can only reach 25%.In addition, a Russian physical technique research institute's employing Fresnel Lenses and a secondary diaphotoscope are accumulator, and the efficient of the STPV system of its making theoretical peak efficiency when the radiator temperature is 2000K can reach 33%.
This shows, the solar thermal photovoltaic system is with respect to common hot photovoltaic system and PV system, efficient improves, but still have following problem: 1, common solar thermal photovoltaic system can only absorb the photon that transforms certain spectrum segment, and the photon of other spectral coverage is not fully used; Though increasing of 2 radiator temperature can improve system effectiveness, but because radiator porch radiant energy leaks the energy loss that causes, after temperature is elevated to certain value, therefore system effectiveness can reduce, promptly have a maximal efficiency corresponding temperature value, after arriving this temperature, it is nonsensical that the solar energy that improves its absorption again increases the radiator temperature, and the too high performance for the radiator material of temperature has very big influence, even causes the damage of material; 3, the radiator temperature raises and must cause the rapid increase of battery heat load, performance and power to radiator are had higher requirement, can not make battery temperature raise if radiator reaches ideal effect, and the efficient that the rising of battery temperature brings influence such as to reduce also be conspicuous; 4, concentrator inevitably exists the loss of energy in aggregation procedure, if make solar energy just can obtain certain utilization before loss, then must make the efficient of system be improved; 5, as can be seen, for the STPV system, its system effectiveness still is subjected to the restriction of several factors, calculates after having ignored a lot of practical factors, and its theoretical system effectiveness still is difficult to surpass 30% by above data.
Three summary of the invention
The object of the present invention is to provide a kind of system effectiveness and electromotive power output height, the radiator surface temperature is low, thereby can reduce the solar thermal photovoltaic device that the frequency division of the heat load of battery absorbs.
The technical scheme that realizes the object of the invention is: the solar thermal photovoltaic device that a kind of frequency division absorbs, it comprises principal reflection mirror, and be arranged on secondary reflex mirror between principal reflection mirror and the focus thereof, in primary mirror surface one-level first photocell is set, post first filter on the photocell surface, the principal reflection mirror below is provided with hot photovoltaic devices, hot photovoltaic devices mainly comprises absorber, radiator and second photocell, post second filter on the second photocell surface, cooler is set at the outer surface of battery.
Principle of the present invention is: the entire spectrum that is conceived to solar energy is efficiently utilized, adopt two-stage reflection-type accumulator that solar energy is assembled, on the principal reflection minute surface, photocell is set, absorb the solar energy of direct irradiation, has the filter coatings of filter action in the setting of photocell surface, the sunlight that as far as possible makes photocell can transform wave band sees through filter and arrives the photocell surface, is converted into electric energy; Filter coatings had both had filter action, had the reflection characteristic of principal reflection mirror again, can be able to transform the reflected light path reflected back secondary reflex mirror of wavelength band sunlight in addition according to original principal reflection mirror, to continue utilization.Enter absorbed radiation device cavity through the sunlight of the secondary reflex mirroring entrance port by hot photovoltaic devices, be converted into heat energy, and add heat radiator after uniform temperature, externally send radiant energy, photon radiation that radiator sends can a part sees through filter and arrives photocell part in the hot photovoltaic system (GaSb photocell or other forbidden band can the relatively low photovoltaic cell of value), be converted into electric energy, the then filtered device reflected back of another part radiator is to keep the high temperature of radiator.The total electrical power electrical power that the two-stage photocell produces and that be system's output.Like this, realized the entire spectrum utilization of solar energy.
The present invention compared with prior art, its remarkable advantage is: 1, adopt the two-stage photoelectric converting device, can significantly improve the absorption transformation efficiency to solar energy, increase system effectiveness and total electromotive power output, the numerical computations demonstration exceeds 12～13% than the common STPV device under the same operating mode; 2, utilize the one-level photocell to absorb the part sunlight, reduced the solar energy that arrives absorber, make the temperature on radiator surface decrease, thereby reduced the heat load of battery; 3, utilize silion cell to absorb the solar energy of part in advance, also reduced the energy loss in sunlight two secondary reflections to a certain extent.The present invention can be applied to fields such as Aeronautics and Astronautics, life, and for aircraft and daily life etc. provides sufficient electric energy, application prospect is extensive.
Four description of drawings
Fig. 1 is the structural representation that frequency-division section of the present invention absorbs solar thermal photovoltaic device.
Fig. 2 is the structure vertical view that silion cell is set on the principal reflection mirror of the present invention.
Fig. 3 is the vertical view that the gallium antimonide battery is set on the cylinder wall.
Five embodiments
Below in conjunction with accompanying drawing the present invention is further described.
In conjunction with Fig. 1, the solar thermal photovoltaic device that frequency division of the present invention absorbs.Comprise principal reflection mirror 1, secondary reflex mirror 2 adopts the cassegrain type accumulator and by stent support, promptly its principal reflection mirror is a parabolic reflector, and the secondary reflex mirror is a hyperbolic mirror, and the big I of principal reflection mirror and secondary hyperbolic mirror is chosen arbitrarily as required.Arrange silion cell 3 in primary mirror surface, post first filter 4 on the silion cell surface, make the sunlight of 0.45～1.127 mu m waveband can see through first filter, 4 arrival silion cells, be converted into electric energy, solar energy beyond this wavelength band then drops on solar energy reflected back secondary reflex mirror together on the principal reflection minute surface with all the other, the cavitys 11 that enter in the absorber 7 by absorber inlet 13 through secondary reflection.Be positioned at the form of the hot photovoltaic system 5 employing bicylindrical sleeves under the principal reflection mirror, the internal layer cylinder is absorber 6 and radiator 7, insert in the outer cylindrical body that vacuumizes 12, arrange gallium antimonide battery 9 at the cylindrical internal face of skin along one week of radiator, post second filter 8 at the battery inner surface, with absorbed radiation energy optionally, and reflect nonabsorbable energy to keep the temperature of radiator.Outer surface at battery is equipped with cooler 10, to eliminate the used heat that inside battery produces.
In conjunction with Fig. 2, beyond the shared projected area of secondary reflex mirror, begin successively to arrange silion cell on the primary mirror surface, arrange according to the every layer of quantity that may arrange at most, so that mirror surface is covered with by silion cell as far as possible.The quantity of silion cell is by the size decision of principal reflection mirror.
In conjunction with Fig. 3, in the hot photovoltaic system gallium antimonide battery along 8 of outside cylinder circumferential arrangement, with outside cylinder along circumferential 8 five equilibriums, part beyond battery is provided with speculum, with falling the emittance reflected back radiator of this part, radially arrange 6, totally 48 GaSb batteries.Battery surface is furnished with Si/SiO
2Photon crystal filter.
Claims (4)
1. the solar thermal photovoltaic device that absorbs of a frequency division, it is characterized in that: it comprises principal reflection mirror [1], and be arranged on secondary reflex mirror [2] between principal reflection mirror and the focus thereof, in primary mirror surface one-level first photocell [3] is set, post first filter [4] on the photocell surface, the principal reflection mirror below is provided with hot photovoltaic devices [5], hot photovoltaic devices mainly comprises absorber [6], radiator [7] and second photocell [9], post second filter [8] on second photocell [9] surface, cooler [10] is set at the outer surface of battery.
2. the solar thermal photovoltaic device that frequency division according to claim 1 absorbs, it is characterized in that: adopt the cassegrain type accumulator and pass through stent support, be that its principal reflection mirror is a parabolic reflector, the secondary reflex mirror is a hyperbolic mirror, and the inlet [13] of hot photovoltaic devices [5] is positioned at the focus place of its principal reflection mirror below, secondary reflex mirror.
3. the solar thermal photovoltaic device that frequency division according to claim 1 and 2 absorbs, it is characterized in that: one-level first photocell [3] adopts silion cell, begin successively to arrange silion cell on the primary mirror surface beyond the shared projected area of secondary reflex mirror, arrange that according to the every layer of quantity that may arrange at most mirror surface is covered with silion cell.
4. the solar thermal photovoltaic device that frequency division according to claim 1 absorbs, it is characterized in that: hot photovoltaic devices [5] adopts the bicylindrical tube-in-tube structure, the internal layer cylinder is absorber and radiator, all can adopt carbofrax material, insert in the outer cylindrical body that vacuumizes, the forbidden band can be worth relatively low hot photovoltaic cell [9] and arrange 8 along the circumferential five equilibrium of outside cylinder, radially arranges 6, totally 48, battery surface is provided with photon crystal filter [8].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200710132772 CN101127373B (en) | 2007-09-30 | 2007-09-30 | Solar thermal photovoltaic device for frequency division absorption |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710132772 CN101127373B (en) | 2007-09-30 | 2007-09-30 | Solar thermal photovoltaic device for frequency division absorption |
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| Publication Number | Publication Date |
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| CN101127373A CN101127373A (en) | 2008-02-20 |
| CN101127373B true CN101127373B (en) | 2010-09-29 |
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| CN 200710132772 Expired - Fee Related CN101127373B (en) | 2007-09-30 | 2007-09-30 | Solar thermal photovoltaic device for frequency division absorption |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630926B (en) * | 2008-07-14 | 2012-05-23 | 南京理工大学 | Thermo-photovoltaic direct conversion power generating device |
| JP4878382B2 (en) * | 2009-05-14 | 2012-02-15 | 独立行政法人 宇宙航空研究開発機構 | Solar thermal collector in solar combined power generation system and solar thermal power generation module using the solar thermal collector |
| CN101694541B (en) * | 2009-08-13 | 2011-07-27 | 中国科学院苏州纳米技术与纳米仿生研究所 | Curved-top total reflection type twice concentration and illumination balancing integration device |
| CN102263146A (en) * | 2010-05-27 | 2011-11-30 | 富士迈半导体精密工业（上海）有限公司 | Solar battery device |
| CN101974764B (en) * | 2010-10-26 | 2012-03-21 | 江苏大学 | Solar thermophotovoltaic hydrogen generating device |
| CN102594207A (en) * | 2011-01-14 | 2012-07-18 | 张一熙 | Transparent thin film solar cell and polycrystalline silicon integrated power generation system |
| CN102103258B (en) * | 2011-02-25 | 2012-10-17 | 浙江大学 | Dish condensation-based solar energy secondary condensation frequency division method and device |
| CN103618012B (en) * | 2013-12-02 | 2016-01-20 | 中国航天科技集团公司第五研究院第五一三研究所 | A kind of laser passes can use solar panel and photoelectric conversion device |
| CN103982280A (en) * | 2014-06-06 | 2014-08-13 | 上海电机学院 | Automobile exhaust waste heat recovery device |
| CN104993776A (en) * | 2015-07-29 | 2015-10-21 | 中国地质大学（武汉） | Solar energy tower type optical-condensation heat-storage thermophotovoltaic power generation system |
| CN105633188A (en) * | 2016-03-11 | 2016-06-01 | 苏州大学 | Solar power supply device |
| CN106772740A (en) * | 2016-12-02 | 2017-05-31 | 兰州大学 | A kind of photonic crystal filters and its application for thermo-optical cell |
| CN107769723A (en) * | 2017-11-06 | 2018-03-06 | 浙江工业大学 | Integrating sphere type photovoltaic receiver device for laser radio charging |
| CN114366832B (en) * | 2022-01-19 | 2023-11-10 | 中国人民解放军国防科技大学 | Leading-in type sunlight illumination and antibacterial mildew removal system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2382133Y (en) * | 1999-07-29 | 2000-06-07 | 杨群发 | Solar photoelectric energy converter |
| CN2552943Y (en) * | 2002-04-30 | 2003-05-28 | 西安工业学院 | Optical film thickness on line real time monitor |
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- 2007-09-30 CN CN 200710132772 patent/CN101127373B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2382133Y (en) * | 1999-07-29 | 2000-06-07 | 杨群发 | Solar photoelectric energy converter |
| CN2552943Y (en) * | 2002-04-30 | 2003-05-28 | 西安工业学院 | Optical film thickness on line real time monitor |
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| CN101127373A (en) | 2008-02-20 |
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Granted publication date: 20100929 Termination date: 20120930 |