CN203933529U - Holographic optically focused light splitting solar power generation module - Google Patents
Holographic optically focused light splitting solar power generation module Download PDFInfo
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- CN203933529U CN203933529U CN201420136083.2U CN201420136083U CN203933529U CN 203933529 U CN203933529 U CN 203933529U CN 201420136083 U CN201420136083 U CN 201420136083U CN 203933529 U CN203933529 U CN 203933529U
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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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Abstract
A holographic optically focused light splitting solar power generation module, is characterized in that, comprising: holographic collector lens (1), one or more spectroscope (2), photovoltaic cell combination; Wherein: described holographic collector lens (1) is positioned at the incident end of light; Described one or more spectroscope (2) is in the light path between light incident end and photovoltaic cell combination; Described photovoltaic cell combination comprises a plurality of photovoltaic cells, and lays respectively on the transmitted light and catoptrical focusing surface of described spectroscope (2).
Description
Technical field
The utility model discloses a kind of holographic optically focused light splitting solar power generation module, belong to photovoltaic technology field.
Background technology
Current, the third generation photovoltaic power generation technology that the concentrating photovoltaic power generation (CPV) of take is representative is experiencing fast development, its correlation technique has become the research and development focus of all kinds of research institutes and enterprise, and various condensation photovoltaic demonstration projects and scale power station also occur all over the world one after another.With regard to its cardinal principle, concentrating photovoltaic power generation technology (CPV) refers to uses lens or minute surface that the sunray receiving is focused on, make high-energy-density hot spot after focusing in alignment with on small size, high efficiency silicon or multijunction compound solar battery chip, obtain energy output.Condensation photovoltaic technology has that conversion efficiency is high, battery consumption is few, environmental friendliness, system attenuation are little, long service life, occupation of land is little, easy to maintenance, reliability is high, be easy to combine on a large scale series of advantages such as forming large-scale photovoltaic power station is installed.
The main functional modules of existing concentration photovoltaic system, generally comprises collector lens, photovoltaic cell and auxiliary high accuracy and installs day by day.The efficient operation height of light concentrating photovoltaic module depends on the tracking accuracy of expensive device day by day and this device, otherwise cannot light accurately be converged on photovoltaic cell; Under existing case of lenses, the tolerance of condenser system receiving angle also with the size direct ratio of photovoltaic cell, in the constant situation of lens, want to increase acceptance angle to reduce the required precision of device day by day, just need to increase cell area, this will increase cost greatly.
In addition, the selected battery of concentration photovoltaic system, is generally silion cell or multijunction compound battery at present.Silion cell energy gap is 1.12eV left and right, and its absorption for short wavelength's high-energy light exists compared with macro-energy waste, and the highest battery conversion efficiency is only in 20% left and right.For multijunction solar cell (international mainstream is the folded battle array of GaInP/GaAs/Ge tri-knot battery at present), because the type battery adopts the cascade of many knots cell stack battle array, between each sub-battery, be equivalent to series relationship, need to carry out currents match, the extracurrent that long wave band produces is wasted because mating, therefore its battery efficiency is at present in 40% left and right and be difficult to obtain further and promote, and is applied to after optically focused condition, and system conversion efficiency is generally only in 30% left and right.
Above present situation has all limited the application scenario of concentration photovoltaic system and further conversion efficiency lifting, has formed the development bottleneck of condensation photovoltaic.
Utility model content
The purpose of this utility model is: for obtaining, have higher unit are photoelectric conversion rate, the not high wide-angle of even exempting from day by day system of required precision day by day to be received to the photovoltaic power generation apparatus of light, to have proposed holographic optically focused light splitting solar power generation module.
The purpose of this utility model is to be realized by following technical scheme:
A holographic optically focused light splitting solar power generation module, is characterized in that, comprising:
Holographic collector lens (1), one or more spectroscope (2), photovoltaic cell combination; Wherein:
Described holographic collector lens (1) is positioned at the incident end of light;
Described one or more spectroscope (2) is in the light path between light incident end and photovoltaic cell combination;
Described photovoltaic cell combination comprises a plurality of photovoltaic cells, and lays respectively on the transmitted light and catoptrical focusing surface of described spectroscope (2).
The quantity of the photovoltaic cell of described photovoltaic cell combination and wavelength corresponding with described spectroscope (2), many 1 than described spectroscope quantity of the photovoltaic cell quantity of described photovoltaic cell combination; Each spectrum segment after described spectroscope light splitting is corresponding with the response wave length scope of the photovoltaic cell of described photovoltaic cell group.
Described holographic collector lens (1) is the compound lens structure of hologram diffraction optically focused and how much light-focusing functions.
Described holographic collector lens is: a kind of among planoconvex spotlight and holographic film combination, Fresnel Lenses and holographic film combination.
Described planoconvex spotlight and described luxuriant and rich with fragrance alunite lens adopt the mode of acrylic engineering plastics mold pressing and glass and silica gel mold pressing to prepare, and described holographic film adopts mode or the attaching mode of evaporation bichromate or the suitable hologram light sensitive material of silver bromide to prepare in compound lens structure.
Described one or more spectroscopes (2), its quantity can be selected between 1 to 5.
Described spectroscope adopts Amici prism or two looks to mirror, and described two looks are glass or high permeability engineering plastics to the base material of mirror, and described two looks adopt the mode of evaporation spectro film on above substrate surface to prepare to mirror.
Described in described photovoltaic cell combination, the quantity of a plurality of photovoltaic cells is between 2 to 6.
Its of described photovoltaic cell response separately has the tens nanometer interval that extremely hundreds of nanometers do not wait by wavelength, the compound mode adopting can have: silion cell and Ga (In) As/GaInP battery combination, the mode of silion cell, Ga (In) As/GaInP battery and InGaP battery combination.
The beneficial effects of the utility model are: use holographic collector lens, can realize the absorption to wide angle rays, make module there is larger acceptance angle scope, thereby avoid the use that high accuracy installs day by day or directly do not use device day by day, also can collect the scattered beam except direct projection light at the same time, make module there is high light energy input; Use spectroscope and and many battery combination of matching, total incident ray is divided into different continuous wave bands and is used respectively, avoided single type battery for the electric current existing in the energy dissipation of high energy shortwave light or the folded battle array of many knots battery match condition not, made the module realize maximum light-use.By increasing total projectile energy of module and the energy loss of minimizing transfer process, this module is expected to obtain the system conversion efficiency far above common crystal silicon optically focused and multijunction cell optically focused.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of holographic optically focused light splitting solar power generation module embodiment mono-.
Fig. 2 is the schematic diagram of holographic optically focused light splitting solar power generation module embodiment bis-.
In Fig. 1,1, holographic collector lens, 2,880nm bis-looks are to mirror, 3,520nm bis-looks are to mirror, 4, silion cell, 5, Ga (In) As/GaInP battery, 6, InGaN battery, 7, incident ray, 8, focus on rear light, transmitted light after 9, light splitting, 10, light splitting back reflection light, 11, transmitted light after secondary light splitting, 12, secondary light splitting back reflection light.
In Fig. 2,1, holographic collector lens, 2,880nm bis-looks are to mirror, 4, silion cell, 5, Ga (In) As/GaInP battery, 7, incident ray, 8, focus on after light, transmitted light after 9, light splitting, 10, light splitting back reflection light,
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment mono-
Embodiment sees Fig. 1.In the present embodiment, what holographic collector lens 1 adopted is the sandwich structure of glass-holographic film-silica gel compacting Fresnel mirror; In module, adopt two spectroscopes, be two looks to mirror, be respectively 880nm bis-looks to mirror 2 and 520nm bis-looks to mirror 3; Photovoltaic cell one has three, is respectively the InGaN battery 6 of the following light wave of the corresponding 520nm of absorption in this module, corresponding Ga (In) the As/GaInP battery 5 that absorbs 520-880nm light wave, and the corresponding silion cell 4 that absorbs the above light wave of 880nm.
In Fig. 1, holographic optically focused light splitting solar power generation module is when work, the incident ray 7(of sunlight is containing direct projection and scattered light) by holographic collector lens 1, enter inside modules, owing to containing the Fresnel Lenses of holographic film and the design of wide acceptance angle in holographic collector lens 1, can realize the absorption of large incident angle light and focusing, thereby realize high-effective concentration effect.After optically focused, light 8 incides 880nm bis-looks to after on mirror 2, and the light that wavelength is greater than 880nm is seen through by selectivity, forms after a light splitting transmitted light 9 and incides on silion cell 4, is converted into electric energy exports by silion cell 4; And the light portion that wavelength is less than 880nm by 880nm bis-looks to mirror 2 reflections, form light splitting back reflection light 10 one time, and incide 520nm bis-looks on the minute surface of mirror 3.Wavelength is greater than the part of 520nm can be by 520nm bis-looks to mirror 3, forms after secondary light splitting transmitted light 11 and is irradiated on Ga (In) As/GaInP battery 5, and being absorbed and be converted into electric energy by Ga (In) As/GaInP battery 5; The high energy wavelength that wavelength is less than 520nm is reflected to mirror 3 by 520nm bis-looks, forms secondary light splitting back reflection light 12, is irradiated on InGaN battery 6, obtains the energy output with high voltage.
The present embodiment, by introducing holographic collector lens 1, can make electricity generation module have wide-angle light gathering, has not only reduced the requirement of system day by day, can also collect extra scattered beam so that incident light energy is maximum.And two spectroscopical uses, the spectrum of incident light can be cut apart from 520nm and 880nm, obtain the light wave of three wave bands and be irradiated to respectively on corresponding with it photovoltaic cell and be used, in this process, the light of each wave band has obtained segmentation utilization, Minimal energy loss in opto-electronic conversion, and the energy of three wave band generations will be exported respectively, needn't consider curtage coupling, avoid again a part of match penalties.By increasing the overall projectile energy of module and the energy loss of minimizing transfer process, this module is expected to obtain the system conversion efficiency far above common crystal silicon optically focused and multijunction cell optically focused.
Embodiment bis-
Embodiment bis-is shown in Fig. 2.In the present embodiment, what holographic collector lens 1 adopted is the sandwich structure of glass-holographic film-silica gel compacting Fresnel mirror; In module, adopt 880nm bis-looks to mirror 2 as spectroscope; Photovoltaic cell one has two, is respectively Ga (In) the As/GaInP battery 5 of the following light wave of the corresponding 880nm of absorption in this module, and the corresponding silion cell 4 that absorbs the above light wave of 880nm.
In Fig. 2, holographic optically focused light splitting solar power generation module is when work, the incident ray 7(of sunlight is containing direct projection and scattered light) by holographic collector lens 1, enter inside modules, owing to containing the Fresnel Lenses of holographic film and the design of wide acceptance angle in holographic collector lens 1, can realize the absorption of large incident angle light and focusing, thereby realize high-effective concentration effect.After optically focused, light 8 incides 880nm bis-looks to after on mirror 2, and the light that wavelength is greater than 880nm is seen through by selectivity, forms after a light splitting transmitted light 9 and incides on silion cell 4, is converted into electric energy exports by silion cell 4; And the light portion that wavelength is less than 880nm by 880nm bis-looks to mirror 2 reflections, forms light splitting back reflection light 10 one time, and is irradiated on Ga (In) As/GaInP battery 5, be absorbed, be converted into and there is the electric energy that high voltage is exported.
A spectroscope and two kinds of photovoltaic cells in the present embodiment, have been used, the spectrum of incident light is cut apart from 880nm, obtain the light wave of two wave bands and be irradiated to respectively on corresponding with it photovoltaic cell and be used, in this process, the light of each wave band has obtained segmentation utilization, and the energy of two wave band generations is exported respectively, needn't consider the coupling of curtage, has avoided a part of match penalties.By increasing the overall projectile energy of module and the energy loss of minimizing transfer process, this module is expected to obtain the system conversion efficiency far above common crystal silicon optically focused and multijunction cell optically focused.But compare with embodiment 1, owing to only light-wave band having been carried out once cutting apart, part high-energy light wave still exists compared with macro-energy loss in opto-electronic conversion, and therefore whole conversion efficiency is lower than embodiment 1.
Only as described above, be only preferred embodiment of the present utility model, such as professional who are familiar with this art.After understanding technological means of the present utility model, natural energy, according to actual needs, is changed under instruction of the present utility model.Therefore all equal variation and modifications of doing according to the utility model claim, once should still belong in the scope that the utility model patent contains.
Claims (6)
1. a holographic optically focused light splitting solar power generation module, is characterized in that, comprising:
Holographic collector lens (1), one or more spectroscope (2), photovoltaic cell combination; Wherein:
Described holographic collector lens (1) is positioned at the incident end of light;
Described one or more spectroscope (2) is in the light path between light incident end and photovoltaic cell combination;
Described photovoltaic cell combination comprises a plurality of photovoltaic cells, and lays respectively on the transmitted light and catoptrical focusing surface of described spectroscope (2);
The quantity of the photovoltaic cell of described photovoltaic cell combination and wavelength corresponding with described spectroscope (2), many 1 than described spectroscope quantity of the photovoltaic cell quantity of described photovoltaic cell combination; Each spectrum segment after described spectroscope light splitting is corresponding with the response wave length scope of the photovoltaic cell of described photovoltaic cell group.
2. holographic optically focused light splitting solar power generation module as claimed in claim 1, is characterized in that, described holographic collector lens (1) is the compound lens structure of hologram diffraction optically focused and how much light-focusing functions.
3. holographic optically focused light splitting solar power generation module as claimed in claim 1, is characterized in that, described holographic collector lens is: a kind of among planoconvex spotlight and holographic film combination, Fresnel Lenses and holographic film combination.
4. holographic optically focused light splitting solar power generation module as claimed in claim 1, is characterized in that, described one or more spectroscopes (2), and its quantity can be selected between 1 to 5.
5. holographic optically focused light splitting solar power generation module as claimed in claim 1, is characterized in that, described in described photovoltaic cell combination, the quantity of a plurality of photovoltaic cells is between 2 to 6.
6. holographic optically focused light splitting solar power generation module as claimed in claim 5, it is characterized in that, its of described photovoltaic cell response separately has the tens nanometer interval that extremely hundreds of nanometers do not wait by wavelength, the compound mode adopting has: silion cell and GaInAs and GaInP battery combination, the mode of silion cell, GaInAs and GaInP battery and InGaN battery combination.
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| CN201420136083.2U CN203933529U (en) | 2014-03-24 | 2014-03-24 | Holographic optically focused light splitting solar power generation module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103888051A (en) * | 2014-03-24 | 2014-06-25 | 北京工业大学 | Holographic light condensing and splitting solar power generation module |
| CN104663266A (en) * | 2015-02-26 | 2015-06-03 | 中国科学技术大学先进技术研究院 | Sunlight comprehensive utilization system of plant factory |
| CN106287403A (en) * | 2015-06-05 | 2017-01-04 | 上海汽车集团股份有限公司 | There is the lamp of reflecting mirror |
-
2014
- 2014-03-24 CN CN201420136083.2U patent/CN203933529U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103888051A (en) * | 2014-03-24 | 2014-06-25 | 北京工业大学 | Holographic light condensing and splitting solar power generation module |
| CN104663266A (en) * | 2015-02-26 | 2015-06-03 | 中国科学技术大学先进技术研究院 | Sunlight comprehensive utilization system of plant factory |
| CN104663266B (en) * | 2015-02-26 | 2017-02-01 | 中国科学技术大学先进技术研究院 | Sunlight comprehensive utilization system of plant factory |
| CN106287403A (en) * | 2015-06-05 | 2017-01-04 | 上海汽车集团股份有限公司 | There is the lamp of reflecting mirror |
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Granted publication date: 20141105 Termination date: 20180324 |
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| CF01 | Termination of patent right due to non-payment of annual fee |