CN101950768B - A kind of method improving solar photovoltaic conversion efficiency - Google Patents
A kind of method improving solar photovoltaic conversion efficiency Download PDFInfo
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- CN101950768B CN101950768B CN201010274549.1A CN201010274549A CN101950768B CN 101950768 B CN101950768 B CN 101950768B CN 201010274549 A CN201010274549 A CN 201010274549A CN 101950768 B CN101950768 B CN 101950768B
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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
The present invention relates to solar energy generation technology, a kind of particularly method improving solar photovoltaic conversion efficiency, it is characterized in that: solar components is enclosed in a cavity, temperature detecting unit is had in cavity, the temperature signal of control unit detected temperatures detecting unit, when temperature is greater than 25 degree, enter in cavity by temperature control medium, the temperature in cavity is regulated to decline, when temperature is less than 25 degree, enter in cavity by temperature control medium, regulate the temperature in cavity to rise, make solar components be operated in 25 degree ± 5.It is so that under the condition not changing solar facilities, improves the generating efficiency of solar energy.
Description
Technical field
The present invention relates to solar energy generation technology, particularly a kind of method improving solar photovoltaic conversion efficiency.
Background technology
In solar power generation, temperature is too high has impact to solar components, and power output can be reduced, and 25 degree time, solar components is optimum working temperature, and less than 45 degree can normally use.Solar components is generally suitable for can at-40 degree to 80 degree, and power output has negative temperature coefficient, the chances are 0.5%/C, is that is the assembly of 100W at 25 degree, only has outputing of 90W when 45 degree.Therefore, in existing solar power generation, the time solar components of more than 80% is in extremely low or high temperature, greatly have impact on the generating efficiency of solar energy.
Summary of the invention
The object of the invention is to carry for a kind of method and the method that improve solar photovoltaic conversion efficiency, so that under the condition not changing solar facilities, improve the generating efficiency of solar energy.
The object of the present invention is achieved like this, improve a method for solar photovoltaic conversion efficiency, it is characterized in that: solar components is enclosed in a cavity, has temperature detecting unit in cavity, the temperature signal of control unit detected temperatures detecting unit, when temperature is greater than 25 degree, enter in cavity by temperature control medium, regulate the temperature in cavity to decline, when temperature is less than 25 degree, enter in cavity by temperature control medium, regulate the temperature in cavity to rise, make solar components be operated in 25 degree ± 5.
Described temperature control medium is water.
Described temperature control medium is compressed air.
Described temperature control WATER AS FLOW MEDIUM by the control realization of a cold water vessels and a solar energy heating container value to the control of cavity temperature.
The transparent medium of the plane of illumination of described cavity has by the purple light of below 400nm in sunlight and the ultraviolet light composition conversion composite material to the visible ray in 400 ~ 700nm.
Described composite material comprises organic polymer, nanoparticle, and nanoparticle is doped to proportion in organic polymer at 0.01-10wt%.
The processing step of described making composite material comprises: the material (2) that (1) prepares nanoparticle adopts physics or chemical mixing (3) that above-mentioned composite coated is formed transparent light wave switching film layer in solar cell surface.
CdS or CdTe quantum material are incorporated into silicon dioxide gel body and obtain quantum dot light-wave conversion layer composite material by described composite material, then be coated with by composite material and be contained in silica-based solar cell surface and form quantum dot light-wave conversion layer, its preparation comprises: the application of the preparation of silicon dioxide gel body, CdS quantum dots, the synthesis of composite material and solar cell surface.
Advantage of the present invention is: because solar components is enclosed in a cavity by the present invention, by controlling the working temperature of solar components, makes it work near 25 degree of the best, reaches the object improving solar energy generating efficiency; In addition, increase composite material at housing surface, make the purple light of below 400nm in sunlight and ultraviolet light composition conversion to the visible ray in 400 ~ 700nm, like this can not owing to increasing light penetrating object, what affect solar components enters solar energy.
Accompanying drawing explanation
Below in conjunction with embodiment accompanying drawing, the invention will be further described:
Fig. 1 is the example structure schematic diagram that temperature control medium of the present invention adopts water;
Fig. 2 is the example structure schematic diagram that temperature control medium of the present invention adopts air
Fig. 3 is embodiments of the invention 3 structural representations.
In figure: 1, solar components; 2, cavity; 3, inlet port; 4, outlet; 5, temperature sensor; 6, controller; 7, solar energy heating container; 8, cold water vessels; 9, air conditioner; 10, valve; 11, water source; 12, pipe fitting.
Embodiment
embodiment 1
As shown in Figure 1, give a kind of method improving solar photovoltaic conversion efficiency that temperature control medium adopts water, solar components 1 is enclosed in a cavity 2, the inlet port 3 of cavity 2 is connected with solar energy heating container 7 and cold water vessels 8 by pipe fitting 12, cold water vessels 8 communicates with the solar energy heating vessel water at water source 11, temperature detecting unit (temperature sensor 5 thermistor or electric heating galvanic couple) is had in cavity 2, control unit is by the temperature signal of detected temperatures detecting unit, when temperature is greater than 25 degree, valve 10 opened by controller 6, the water of cold water vessels 8 is made to be entered temperature adjustment pipeline in cavity by pipe fitting 12, formed with the output pipe of outlet 4 and circulate.When temperature is less than 25 degree, valve 10 opened by controller 6, makes the water of solar energy heating container 7 be entered temperature adjustment pipeline in cavity by pipe fitting 12, makes solar components 1 be operated in 25 degree ± 5.
In winter, temperature is lower, and do not having in temperature controlled situation, solar components 1 is operated in zubzero temperature, can be made full use of the heat energy in solar energy by solar energy heating container 7 temperature adjustment.And when summer, temperature is higher, do not having in temperature controlled situation, solar components 1 is operated in tens degree, by the water control temperature at cold water vessels 8 and water source 11.Such structure makes full use of natural conditions temperature control, under making solar components be operated in desirable temperature environment, also protects solar components not by extraneous damage simultaneously, extends the service time of solar components.
embodiment 2
As shown in Figure 2, give temperature control medium and adopt a kind of compressed-air actuated method improving solar photovoltaic conversion efficiency, equally, solar components 1 is enclosed in a cavity 2, the inlet port 3 of cavity 2 is connected with air conditioner 9 by pipe fitting 12, temperature sensor 5(thermistor or electric heating galvanic couple is had) in cavity 2, control unit is by the temperature signal of detected temperatures detecting unit, when temperature is greater than 25 degree or when being less than 25 degree, valve 10 opened by controller 6, make the gas of air conditioner 9 enter in cavity, make solar components be operated in 25 degree ± 5.
Fig. 2 and Fig. 1 difference is that air conditioner 9 needs electricity consumption, controls 25 square metres by the air conditioner of 2000W, and by the high calculation in 3 meters, room, real space is 75 square metres, is about 2-5MM thick for the space that cavity 2 is very little, can the solar components 1 of temperature control 30000 square metres.Certain actual conditions can be different.
embodiment 3
As shown in Figure 3, different from embodiment 1 and 2, embodiment 3 gives another kind of structure, by the structure of temperature in air conditioner 9 and solar energy heating container 7 co-controlling cavity 2.
Equally, solar components 1 is enclosed in a cavity 2, the inlet port 3 of cavity 2 is connected with solar energy heating container 7 and air conditioner 9 by pipe fitting 12, water source 11 leads to solar energy heating container 7 aqueous phase, the temperature detecting unit (temperature sensor 5 thermistor or electric heating galvanic couple) had in cavity, control unit is by the temperature signal of detected temperatures detector, when temperature is greater than 25 degree, controller 6 starts air conditioner 9, make the greenhouse cooling in cavity 2, when temperature is less than 25 degree, valve 10 opened by controller 6, the water of solar energy heating container 7 is made to be entered temperature adjustment pipeline in cavity by pipe fitting 12, solar components is made to be operated in 25 degree ± 5.
embodiment 4
Cavity 2 photoreceiving surface line face is transparent material, transparent material can absorb a part of solar energy, on the one hand in order to reduce the loss of solar energy, on the other hand receiving solar energy to improve solar components 1, the transparent medium of the plane of illumination of cavity having by the purple light of below 400nm in sunlight and the ultraviolet light composition conversion composite material to the visible ray in 400 ~ 700nm.
Composite material adopts polymer, nanoparticle, and nanoparticle is doped to proportion in organic polymer at 0.01-10wt%.Processing step comprises: the material (2) that (1) prepares nanoparticle adopts physics or chemical mixing (3) that above-mentioned composite coated is formed transparent light wave switching film layer in transparent material surface.
Composite material also can adopt CdS or CdTe quantum material to be incorporated into silicon dioxide gel body and obtain quantum dot light-wave conversion layer composite material, then composite material painting is contained in transparent material surface and forms transparent light wave switching film layer.Its preparation method comprises: the preparation of silicon dioxide gel body, CdS quantum dots, the synthesis of composite material.
Claims (5)
1. one kind is improved the method for solar photovoltaic conversion efficiency, it is characterized in that: solar components (1) is enclosed in a cavity (2), cavity has temperature detecting unit in (2), the temperature signal of control unit detected temperatures detecting unit, when temperature is greater than 25 degree, enter in cavity (2) by temperature control medium, the temperature in cavity is regulated to decline, when temperature is less than 25 degree, enter in cavity (2) by temperature control medium, regulate the temperature in cavity to rise, make solar components (1) be operated in 25 degree ± 5; The transparent medium of the plane of illumination of described cavity have by the purple light of below 400nm in sunlight and the ultraviolet light composition conversion composite material to the visible ray in 400 ~ 700nm; Described composite material includes organic polymer, nanoparticle, and nanoparticle is doped to proportion in organic polymer at 0.01-10wt%; CdS or CdTe quantum material are incorporated into silicon dioxide gel body and obtain quantum dot light-wave conversion layer composite material by described composite material, then be coated with by composite material and be contained in silica-based solar cell surface and form quantum dot light-wave conversion layer, its preparation comprises: the application of the preparation of silicon dioxide gel body, CdS quantum dots, the synthesis of composite material and solar cell surface.
2. a kind of method improving solar photovoltaic conversion efficiency according to claim 1, is characterized in that: described temperature control medium is water.
3. a kind of method improving solar photovoltaic conversion efficiency according to claim 1, is characterized in that: described temperature control medium is compressed air.
4. a kind of method improving solar photovoltaic conversion efficiency according to claim 1, is characterized in that: described temperature control WATER AS FLOW MEDIUM by the control realization of a cold water vessels and a solar energy heating container value to the control of cavity temperature.
5. a kind of method improving solar photovoltaic conversion efficiency according to claim 1, is characterized in that: the manufacturing process steps of described composite material comprises: the material 1) preparing nanoparticle; 2) physics or chemical mixing is adopted; 3) above-mentioned composite coated is formed transparent light wave switching film layer in solar cell surface.
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| CN201010274549.1A CN101950768B (en) | 2010-09-07 | 2010-09-07 | A kind of method improving solar photovoltaic conversion efficiency |
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| CN201010274549.1A CN101950768B (en) | 2010-09-07 | 2010-09-07 | A kind of method improving solar photovoltaic conversion efficiency |
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| CN101950768B true CN101950768B (en) | 2015-11-25 |
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| CN103587422A (en) * | 2012-08-13 | 2014-02-19 | 王广武 | Car or boat with solar power generation ceiling |
| CN102931266B (en) * | 2012-10-30 | 2015-06-03 | 厦门镁尔捷能源技术有限公司 | Solar module |
| CN103545444B (en) * | 2013-11-04 | 2016-04-13 | 天津理工大学 | A kind of flexible organic solar batteries device and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101567406A (en) * | 2009-06-09 | 2009-10-28 | 华东师范大学 | Method for preparing quantum dot light-wave conversion layer on the surface of silica-based solar cell |
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| JPS6396447A (en) * | 1986-10-07 | 1988-04-27 | Fuji Electric Co Ltd | Solar energy collector |
| JPH1137570A (en) * | 1997-07-22 | 1999-02-12 | Mitsubishi Electric Corp | Hybrid solar energy utilization device |
| US20090320921A1 (en) * | 2008-02-01 | 2009-12-31 | Grommesh Robert C | Photovoltaic Glazing Assembly and Method |
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| CN101567406A (en) * | 2009-06-09 | 2009-10-28 | 华东师范大学 | Method for preparing quantum dot light-wave conversion layer on the surface of silica-based solar cell |
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Effective date of registration: 20181019 Address after: 727000 8 Wanglei group, Wanglei River Street office, Wangyi District, Tongchuan, Shaanxi Patentee after: Xi'an Yue Lang Nano Technology Co., Ltd. Tongchuan branch Address before: 710075 new apartment 69, Jinye Road, hi-tech West District, Xi'an, Shaanxi Patentee before: Xi'an Xinwei Information Science and Technology Co., Ltd. |
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