CN105577103A - Solar band division photovoltaic power generation device - Google Patents
Solar band division photovoltaic power generation device Download PDFInfo
- Publication number
- CN105577103A CN105577103A CN201610146120.1A CN201610146120A CN105577103A CN 105577103 A CN105577103 A CN 105577103A CN 201610146120 A CN201610146120 A CN 201610146120A CN 105577103 A CN105577103 A CN 105577103A
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- CN
- China
- Prior art keywords
- energy
- power generation
- solar
- photovoltaic power
- light
- Prior art date
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- 238000010248 power generation Methods 0.000 title claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 6
- 230000005855 radiation Effects 0.000 abstract description 6
- 239000003086 colorant Substances 0.000 abstract 3
- 238000001228 spectrum Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical class [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
- H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
-
- 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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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention belongs to the technical field of solar photovoltaic power generation devices, particularly relates to a solar band division photovoltaic power generation device, and mainly solves the technical problems of low conversion efficiency of the existing solar photovoltaic power generation devices. The solar band division photovoltaic power generation device comprises a parabolic cylinder reflecting mirror, a bar-shaped linear Fresnel lens, a bracket, a triangular prism and multiband photovoltaic cell packs. Low-energy-density solar radiation is converged into bar-shaped high-energy-density parallel light of which energy density is expanded for dozens or hundreds of times through the parabolic cylinder reflecting mirror and the bar-shaped linear Fresnel lens. Bar-shaped high-energy-density parallel light is decomposed into all band colors of light through the triangular prism. Solar cells formed by band gap material having the best matching degree with the wavelength of different band colors of light are arranged at the irradiation positions of different band colors of light. Sunlight of all bands can be efficiently converted into electric energy so that the technical problems of low conversion efficiency of the existing solar photovoltaic power generation devices can be solved.
Description
Technical field
The invention belongs to solar energy photovoltaic generator technical field, be specifically related to a kind of solar energy subrane photovoltaic power generation apparatus.
Background technology
In the face of fossil energy is day by day exhausted and the increasing stem reality of environmental pollution, the efficiency utilization of solar energy receives publicity.The raw material of modal solar cell adopt polysilicon and monocrystalline silicon mostly in the market.The conversion efficiency of polysilicon class solar cell is about 15%, and single crystal silicon series products is about 20%, and the monocrystalline silicon battery efficiency that plant layoutization is produced is only 12%.The low energy densities characteristic of the low solar energy in addition of conversion efficiency of solar cell, limits the large-scale commercial applications application of solar energy power generating.
The reason that solar energy is converted to electric energy ratio low is: the ultraviolet shorter from wavelength is until longer infrared ray, and sunlight is mixed by the light of multi-wavelength, and photon energy and wavelength are inversely proportional to.When photon energy is less than cell semiconductor material band gap, electronics can not be pushed to conduction band, also just cannot produce electric energy.The remainder branch being greater than band gap in photon energy converts thermal losses to, and can not be converted into electric energy.If band gap is excessive, can not be converted to electric energy lower than photon in the light wave of band gap respective frequencies, the luminous energy of loss can increase, if band gap is too small, then heat-energy losses can increase.Therefore, band gap determines solar cell spectrum sensitive maximum, and the conversion efficiency limit of silicon metal class solar cell is approximately 30%.
The semi-conducting material determined has the band gap determined, the solar cell that therefore homogenous material is formed efficiently can only be changed the light radiation of wave band near the corresponding maximum spectrum sensitive value wavelength of its band gap, cannot realize the efficient conversion in whole solar radiation wave band.
Summary of the invention
The object of the invention is to solve existing solar energy photovoltaic generator and there is the low technical problem of conversion efficiency, a kind of solar energy subrane photovoltaic power generation apparatus is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of solar energy subrane photovoltaic power generation apparatus, it comprises parabolic reflector, bar shaped linear Fresnel lens, support, prism and multiband light battery pack, described parabolic reflector, bar shaped linear Fresnel lens, prism and multiband light battery pack are from left to right located on support successively, and the focal line of parabolic reflector is overlapped with the focal line of bar shaped linear Fresnel lens, the bar shaped high-energy-density directional light that bar shaped linear Fresnel lens exports is penetrated on prism, and each wave band coloured light making prism decompose out covers above multiband light battery pack.
The present invention adopts above technical scheme, the solar radiation of low energy densities is converged as energy density expands bar shaped high-energy-density directional light that is tens of or hundreds of times by parabolic reflector and bar shaped linear Fresnel lens, this bar shaped high-energy-density directional light is decomposed into each wave band coloured light through prism, the solar cell of the band gap material formation that degree Wavelength matched with it is best is arranged at the irradiation position of different-waveband coloured light, the sunlight of all wave bands all efficiently can be converted to electric energy, solve existing solar energy photovoltaic generator and there is the low technical problem of conversion efficiency.Therefore, compared with background technology, the present invention has the advantage that solar energy most efficiently can be converted into electric energy.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Embodiment
As shown in drawings, a kind of solar energy subrane photovoltaic power generation apparatus in the present embodiment, comprise parabolic reflector 1, bar shaped linear Fresnel lens 2, support 3, prism 4 and multiband light battery pack 5, described parabolic reflector 1, bar shaped linear Fresnel lens 2, prism 4 and multiband light battery pack 5 are from left to right located on support 3 successively, and the focal line of parabolic reflector 1 is overlapped with the focal line of bar shaped linear Fresnel lens 2, the bar shaped high-energy-density directional light that bar shaped linear Fresnel lens 2 exports is penetrated on prism 4, and each wave band coloured light making prism 4 decompose out covers above multiband light battery pack 5, multiband light battery pack 5 is tiled by the solar cell of multiple wave band and forms, and wave band covers the primary spectrum scope of solar radiation, and each wave band coloured light irradiation position that the position of different-waveband solar cell in photocell group 5 and prism 4 decompose out is consistent.
Operation principle of the present invention is: comprise multiwave parallel solar radiation can through parabolic reflector 1 be reflected in its focal line place converge be a highlighted straight line, move on after focal line, run into bar shaped linear Fresnel lens 2, because the focal line of bar shaped linear Fresnel lens 2 overlaps with the focal line position of parabolic reflector 1, by the bar shaped high-energy-density directional light that expands tens of or hundreds of times for energy density, (its width is determined by bar shaped linear Fresnel lens height the light reflected through bar shaped linear Fresnel lens 2, should be limited in several millimeters), this high-energy-density directional light incides on the left side faceted pebble of prism 4, by the refraction action of prism 4, this high-energy-density directional light is decomposed into the position skew coloured light distribution relevant to wavelength, the photovoltaic cell that different forbidden bands material is made is placed at different color light place, the optimum Match of solar cell material band gap (width between conduction band and forbidden band) and solar spectrum can be accomplished like this, Efficient Conversion solar energy in small band, the efficient photoelectricity treater realized in whole solar energy spectral range transforms.
Claims (1)
1. a solar energy subrane photovoltaic power generation apparatus, it is characterized in that: comprise parabolic reflector (1), bar shaped linear Fresnel lens (2), support (3), prism (4) and multiband light battery pack (5), described parabolic reflector (1), bar shaped linear Fresnel lens (2), prism (4) and multiband light battery pack (5) are from left to right located on support (3) successively, and the focal line of parabolic reflector (1) is overlapped with the focal line of bar shaped linear Fresnel lens (2), the bar shaped high-energy-density directional light that bar shaped linear Fresnel lens (2) exports is penetrated on prism (4), and each wave band coloured light making prism (4) decompose out covers above multiband light battery pack (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610146120.1A CN105577103A (en) | 2016-03-15 | 2016-03-15 | Solar band division photovoltaic power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610146120.1A CN105577103A (en) | 2016-03-15 | 2016-03-15 | Solar band division photovoltaic power generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105577103A true CN105577103A (en) | 2016-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610146120.1A Pending CN105577103A (en) | 2016-03-15 | 2016-03-15 | Solar band division photovoltaic power generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105577103A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105959771A (en) * | 2016-07-21 | 2016-09-21 | 李秀全 | Solar energy waveband partition photovoltaic power generation device |
| CN107830643A (en) * | 2017-10-20 | 2018-03-23 | 张福隆 | Reflector sun-chasing without ratchet step-by-step system |
| CN108365795A (en) * | 2018-04-10 | 2018-08-03 | 浙江大学 | A kind of cascade thermal photovoltaic system of difference forbidden band photovoltaic cell and its heat energy recovering method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201813326U (en) * | 2010-09-16 | 2011-04-27 | 王宏晓 | Prismatic focusing type photovoltaic power generation device |
| CN203406309U (en) * | 2013-07-22 | 2014-01-22 | 姬有 | Solar cell module absorbing in respective wave band |
| CN204421389U (en) * | 2014-12-09 | 2015-06-24 | 中国科学院工程热物理研究所 | A kind of secondary condensation reflective-transmissive type parabolic trough type solar thermal collector |
| CN205430159U (en) * | 2016-03-15 | 2016-08-03 | 山西大学 | Solar energy subrane photovoltaic power generation device |
-
2016
- 2016-03-15 CN CN201610146120.1A patent/CN105577103A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201813326U (en) * | 2010-09-16 | 2011-04-27 | 王宏晓 | Prismatic focusing type photovoltaic power generation device |
| CN203406309U (en) * | 2013-07-22 | 2014-01-22 | 姬有 | Solar cell module absorbing in respective wave band |
| CN204421389U (en) * | 2014-12-09 | 2015-06-24 | 中国科学院工程热物理研究所 | A kind of secondary condensation reflective-transmissive type parabolic trough type solar thermal collector |
| CN205430159U (en) * | 2016-03-15 | 2016-08-03 | 山西大学 | Solar energy subrane photovoltaic power generation device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105959771A (en) * | 2016-07-21 | 2016-09-21 | 李秀全 | Solar energy waveband partition photovoltaic power generation device |
| CN107830643A (en) * | 2017-10-20 | 2018-03-23 | 张福隆 | Reflector sun-chasing without ratchet step-by-step system |
| CN108365795A (en) * | 2018-04-10 | 2018-08-03 | 浙江大学 | A kind of cascade thermal photovoltaic system of difference forbidden band photovoltaic cell and its heat energy recovering method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160511 |