CN105634408A - Light attenuation test device for solar photovoltaic cell - Google Patents
Light attenuation test device for solar photovoltaic cell Download PDFInfo
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- CN105634408A CN105634408A CN201410696550.1A CN201410696550A CN105634408A CN 105634408 A CN105634408 A CN 105634408A CN 201410696550 A CN201410696550 A CN 201410696550A CN 105634408 A CN105634408 A CN 105634408A
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- solar
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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
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Abstract
The invention relates to a light attenuation test device for a solar photovoltaic cell. The test device comprises a stereoscopic frame, wherein an aluminum plastic plate is mounted on the stereoscopic frame to form a sealed test box body; a heat dissipation fan is arranged at the top end of the test box body; a tungsten lamp guide-track groove is formed in the lower part of the heat dissipation fan; a tungsten lamp simulating a sun light source is mounted on the tungsten lamp guide-track groove; and a temperature controller is arranged in the test box body and connected with the heat dissipation fan, detects the internal temperature of the test box body and controls the turn-on or turn-off of the heat dissipation fan according to a set temperature. Compared with the prior art, the test device has the advantages that the stereoscopic frame made of aluminum sections and the aluminum plastic plate are assembled to form the sealed test box body, and the test box body is convenient to assemble and disassemble and is convenient to move; the light source is simulated by the tungsten lamp, and a temperature control apparatus is arranged, so that the temperature in the test box body can be ensured to be within a required temperature range; and the attenuation rate of the cell in a photovoltaic module can be accurately tested and the operation is convenient.
Description
Technical field
The invention belongs to solar photovoltaic assembly technical field, especially relate to the die-away test equipment of the light of a kind of solar-energy photo-voltaic cell sheet.
Background technology
Polysilicon photovoltaic module (as shown in Figure 1) is by main materials such as glass 1, EVA2, cell piece 4, backboard 3, aluminum frame, rosette, silica gel, it is packaged according to certain production technology, is issued to the photovoltaic device of certain output and output voltage at certain illumination condition. The decay of component power refers to the growth along with light application time, the phenomenon that assembly output is gradually reduced. Its relaxation phenomenon can be roughly divided into three classes: the first kind, the component power caused due to monkey wrench decays suddenly, monkey wrench refers mainly to assembly failure welding, packaging technology in welding process and there is starved phenomenon, or owing to assembly is in carrying, misoperation in installation process, even assembly be in use subject to clashing of hail and cause component internal hidden to be split, the cell piece seriously phenomenon such as broken; Equations of The Second Kind, the photo attenuation that assembly is initial, namely there is decline by a relatively large margin in the output of photovoltaic module in initial several days just begun to use, but tends towards stability subsequently; 3rd class, the aging decay of assembly, the pole power down phenomenon slowly namely occurred in life-time service.
Photo attenuation is also referred to as S-W effect. A-Si:H thin film strong illumination or electric current through the long period passes through, and makes the hydraulic performance decline of thin film therein by producing defect, is called Staebler-Wronski effect (D.L.Staebler and C.R.Wronski finds the earliest). Cause to S-W effect, still has many disputes so far, causes the micromechanism of decline also to there is no final conclusion, becomes the heat subject of amorphous silicon material research both at home and abroad so far. Overview is thought, S-W effect causes creating new hanging key defect state (deep energy level) in band gap due to illumination, this defect state can affect the position of the fermi level Ef of a-Si:H thin-film material, so that the distribution situation of electronics changes, and then one side causes the change of optical property, on the other hand the recombination process of electronics is produced impact. These defect states become the extra complex centre in electronics and hole so that the capture cross-section of electronics increases, the life-span declines.
For Equations of The Second Kind solar photovoltaic assembly relaxation phenomenon, the loss of producer is encapsulated, it is necessary to carry out preliminary test solar battery sheet initial decay efficiency, after ensureing component package in order to reduce solar energy, have higher efficiency, promote assembly efficiency in user's hands and power. Promote encapsulation producer merit early stage and select the ability of cell piece.
At present in photovoltaic encapsulation producer in the industry, but without a light decay testing equipment approved completely, more there is no approved light decay test method.
Summary of the invention
The purpose of the present invention is contemplated to the defect overcoming above-mentioned prior art to exist and the die-away test equipment providing the light of a kind of simple in construction, solar-energy photo-voltaic cell sheet easily fabricated, easy to use.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of die-away test equipment of the light of solar-energy photo-voltaic cell sheet, including space framework, space framework is installed aluminium-plastic panel and forms airtight test casing, it is provided with radiator fan on the top of this test casing, it is connected with crow lamp guide-track groove at radiator fan, crow lamp guide-track groove is provided with the black lamp of simulated solar light source.
Described test casing top offers circular port, and described radiator fan is arranged in circular port.
Described radiator fan is provided with two.
Described black lamp guide-track groove is provided with three, be arranged in parallel before and after respectively.
Every black lamp guide-track groove is provided with three black lamps, owing to crow lamp source is extremely similar to solar source, therefore carrys out simulated solar irradiation by arranging totally 9 light sources, allow cell piece power, efficiency decay, finally in order to make cell piece attenuator.
The front side of described test casing offers unlatching door.
Described aluminium-plastic panel is minute surface aluminium-plastic panel, and mirrored sides is positioned at the inner side of aluminium-plastic panel, by direct reflection, the irradiation energy of crow lamp being ensured, the cell piece being finally all placed in case absorbs, to reach the maximum utilization of light irradiation amount.
Described test box house is provided with temperature controller, this temperature controller is connected with radiator fan, temperature controller detection test box interior temperature, and control the keying of radiator fan according to design temperature and be turned on and off, arrange temperature controller in order that the problem of considering cell piece light decay ambient temperature, when experimental box body temperature is higher than 25 degree, temperature controller will control radiator fan and automatically run, intelligent cooling.
The switch controlling crow lamp unlatching is located at the outside of test casing.
The using method of the testing equipment of the present invention: this equipment is put in the environment of ambient humidity < 50%, test cell piece efficiency before test, then put into light decay case, cell piece faces up, and above cell piece, cover safety glass (matte is down), power-on makes lamp box crow light irradiation eight hours, so that cell piece reaches light decay effect, can then measure cell piece power. Calculating the attenuation percentage of cell piece power, wherein method of testing is with reference to international IEC61215 standard, and the demarcation of solaode one-level table sheet.
Compared with prior art, the present invention has the following advantages and beneficial effect:
(1) testing equipment of the present invention is assembled formed airtight test casing by space framework and the aluminium-plastic panel of aluminium section bar, assembles and convenient disassembly, and is moved easily;
(2) present invention is by crow lamp analog light source, and is provided with temperature regulating device, it is possible to the temperature of guarantee test casing is in the temperature range of needs;
(3) attenuation rate of cell piece in photovoltaic module can be tested accurately by the testing equipment of the present invention, easy to operate.
Accompanying drawing explanation
Fig. 1 is polysilicon photovoltaic module structure schematic diagram;
Fig. 2 is the main TV structure schematic diagram of testing equipment of the present invention;
Fig. 3 is the side-looking structural representation of testing equipment of the present invention;
Fig. 4 is the plan structure schematic diagram of testing equipment of the present invention.
Number in the figure: 1 is glass, 2 is EVA, and 3 is backboard, and 4 is cell piece, and 5 is space framework, and 6 is aluminium-plastic panel, and 7 is switch, and 8 is guide-track groove, and 9 is radiator fan, and 10 is crow lamp, and 11 for opening door.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
A kind of die-away test equipment of the light of solar-energy photo-voltaic cell sheet, as shown in Figure 2 to 4, including space framework 5, space framework 5 is installed aluminium-plastic panel 6 and forms airtight test casing, offer circular port on the top of this test casing, radiator fan 9 is arranged in circular port. Radiator fan 9 is provided with two altogether. Being connected with crow lamp guide-track groove 8 at radiator fan 9, crow lamp guide-track groove 8 is provided with three, be arranged in parallel before and after respectively. Every black lamp guide-track groove 8 is provided with three black lamps 10, owing to crow lamp 10 light source is extremely similar to solar source, therefore carrys out simulated solar irradiation by arranging totally 9 light sources, allow cell piece power, efficiency decay, finally in order to make cell piece attenuator. The front side of test casing offers unlatching door 11.
Aluminium-plastic panel 6 is minute surface aluminium-plastic panel 6, and minute surface side is positioned at the inner side of aluminium-plastic panel 6, by direct reflection, the irradiation energy of crow lamp 10 being ensured, the cell piece being finally all placed in case absorbs, to reach the maximum utilization of light irradiation amount. The switch 7 controlling crow lamp 10 unlatching is located at the outsides of test casing.
Test box house is provided with temperature controller, this temperature controller is connected with radiator fan 9, temperature controller detection test box interior temperature, and control the keying of radiator fan 9 according to design temperature and be turned on and off, arrange temperature controller in order that the problem of considering cell piece light decay ambient temperature, when experimental box body temperature is higher than 25 degree, temperature controller will control radiator fan 9 and automatically run, intelligent cooling.
The using method of the testing equipment of the present invention: this equipment is put in the environment of ambient humidity < 50%, test cell piece efficiency before test, then put into light decay case, cell piece faces up, and above cell piece, cover safety glass (matte is down), power-on makes lamp box crow lamp 10 irradiate eight hours, so that cell piece reaches light decay effect, can then measure cell piece power. Calculating the attenuation percentage of cell piece power, wherein method of testing is with reference to international IEC61215 standard, and the demarcation of solaode one-level table sheet.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and use invention. These embodiments obviously easily can be made various amendment by person skilled in the art, and General Principle described herein is applied in other embodiments without through performing creative labour. Therefore, the invention is not restricted to above-described embodiment, those skilled in the art's announcement according to the present invention, the improvement made without departing from scope and amendment all should within protection scope of the present invention.
Claims (9)
1. the die-away test equipment of the light of a solar-energy photo-voltaic cell sheet, it is characterized in that, including space framework, space framework is installed aluminium-plastic panel and forms airtight test casing, it is provided with radiator fan on the top of this test casing, it is connected with crow lamp guide-track groove at radiator fan, crow lamp guide-track groove is provided with the black lamp of simulated solar light source.
2. the die-away test equipment of the light of a kind of solar-energy photo-voltaic cell sheet according to claim 1, it is characterised in that described test casing top offers circular port, and described radiator fan is arranged in circular port.
3. the die-away test equipment of the light of a kind of solar-energy photo-voltaic cell sheet according to claim 1, it is characterised in that described radiator fan is provided with two.
4. the die-away test equipment of the light of a kind of solar-energy photo-voltaic cell sheet according to claim 1, it is characterised in that described black lamp guide-track groove is provided with three, be arranged in parallel before and after respectively.
5. the die-away test equipment of the light of a kind of solar-energy photo-voltaic cell sheet according to claim 1, it is characterised in that be provided with three black lamps on every black lamp guide-track groove.
6. the die-away test equipment of the light of a kind of solar-energy photo-voltaic cell sheet according to claim 1, it is characterised in that the front side of described test casing offers unlatching door.
7. the die-away test equipment of the light of a kind of solar-energy photo-voltaic cell sheet according to claim 1, it is characterised in that described aluminium-plastic panel is minute surface aluminium-plastic panel, and minute surface side is positioned at the inner side of aluminium-plastic panel.
8. the die-away test equipment of the light of a kind of solar-energy photo-voltaic cell sheet according to claim 1, it is characterized in that, described test box house is provided with temperature controller, this temperature controller is connected with radiator fan, temperature controller detection test box interior temperature, and control the keying of radiator fan according to design temperature and be turned on and off.
9. the die-away test equipment of the light of a kind of solar-energy photo-voltaic cell sheet according to claim 1, it is characterised in that the switch controlling crow lamp unlatching is located at the outside of test casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410696550.1A CN105634408A (en) | 2014-11-26 | 2014-11-26 | Light attenuation test device for solar photovoltaic cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410696550.1A CN105634408A (en) | 2014-11-26 | 2014-11-26 | Light attenuation test device for solar photovoltaic cell |
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| CN105634408A true CN105634408A (en) | 2016-06-01 |
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| CN201410696550.1A Pending CN105634408A (en) | 2014-11-26 | 2014-11-26 | Light attenuation test device for solar photovoltaic cell |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196603A (en) * | 2017-05-17 | 2017-09-22 | 莱茵技术（上海）有限公司 | A kind of test system measured for photovoltaic module temperature coefficient |
| WO2018218906A1 (en) * | 2017-06-01 | 2018-12-06 | 常州时创能源科技有限公司 | Quick sample preparation equipment for solar battery luminous decay test |
| CN109473371A (en) * | 2018-11-21 | 2019-03-15 | 横店集团东磁股份有限公司 | A kind of solar battery sheet light decay machine |
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| CN107196603A (en) * | 2017-05-17 | 2017-09-22 | 莱茵技术（上海）有限公司 | A kind of test system measured for photovoltaic module temperature coefficient |
| WO2018218906A1 (en) * | 2017-06-01 | 2018-12-06 | 常州时创能源科技有限公司 | Quick sample preparation equipment for solar battery luminous decay test |
| CN109473371A (en) * | 2018-11-21 | 2019-03-15 | 横店集团东磁股份有限公司 | A kind of solar battery sheet light decay machine |
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Application publication date: 20160601 |