CN105351790A - Non-compensation all-solid light source type LED solar simulator - Google Patents
Non-compensation all-solid light source type LED solar simulator Download PDFInfo
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- CN105351790A CN105351790A CN201410407438.1A CN201410407438A CN105351790A CN 105351790 A CN105351790 A CN 105351790A CN 201410407438 A CN201410407438 A CN 201410407438A CN 105351790 A CN105351790 A CN 105351790A
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Abstract
The invention relates to a solar simulator using high-power LEDs as a light source. The solar simulator is suitable for the fields such as the photovoltaic field, the agricultural science field, the biological field and the building material field. Detailed discussion is given in the aspects of light source selection, spectrum matching, the optical system and the LED light source driving mode of the LED solar simulator. The LEDs with all the peak wavelengths within the wave band from 300 nm to 1100 nm are adopted to serve as a light source part. Spectrum matching is conducted by combining the distribution of the spectral irradiancies within the wave band with the distribution of the sunlight spectrum under the AM1.5 condition according to the international standard. The optical system is designed through a repeated condensation method, full mixing of various kinds of light with different wavelengths is achieved, and irradiation nonuniformity and irradiation instability of an effective irradiation surface are achieved through an LED light source array local independent control way. By the adoption of the design method, the AAA standard specified by IEC60904-9-2007 can be effectively achieved on the effective irradiation surface through the LED solar simulator.
Description
Technical field
The invention belongs to new forms of energy equipment field, have developed a non-compensation total solids light source led solar simulator.
Background technology
Solar simulation is a special kind of skill utilizing artificial light source simulated solar irradiation Radiation Characteristics.Widely, large-scale solar simulator is the chief component of space technology Satellite space environment simulation to the application of solar simulator, has been mainly used in the heat balance test of satellite, the thermal design of inspection satellite.Middle-size and small-size sun mould device is used for the sun sensor ground simulation test of satellite gravity anomaly and the ground calibration of demarcation and earth resources satellite multispectral scanner solar spectrum irradiation response, while middle-size and small-size solar simulator to be also absolutely necessary in photovoltaic scientific and engineering process one of equipment.Such solar simulator can be used for studying development of plants in lab simulation solar spectrum irradiation in the detection of solar cell and demarcation, remote sensing technology and agricultural sciences and cultivate fine seed strains, the resistance to radiation aging test etc. of material in building material industry.Particularly in recent years along with being suitable for succeeding in developing of health sunshine device for health care, the research artificial sun analogue technique promoted further.
The middle-size and small-size solar simulator applied in photovoltaic industry is the requisite equipment with calibration that detects in photovoltaic industry.The light source mainly carbon arc lamp of early stage solar simulator, its advantage be its spatial distribution and solar spectrum the most close, shortcoming is the easy loss of electrode material, easily causes sputtering to pollute and affects the optical property of test specimen.Currently detect the large multiplex xenon lamp of solar simulator of calibration as light source for photovoltaic, its advantage is stable working state, photoelectric parameter uniformity is good, brightness is high, luminous efficiency is high and can form the relatively true solar spectrum distribution etc. of symmetrical distribution curve flux, spectral region.But its deficiency constrains its versatility equally, xenon lamp solar simulator volume is large, cost is high, energy consumption is large, maintenance cost is high.This makes it not to be applied to, and photovoltaic is small-sized, the test of minicell assembly with produce in.In the application of large assemblies, the power consumption of xenon lamp simulator is more, and maintenance cost is huge.In the measurement of small-sized, micromodule, generally replace standard solar simulator with halogen tungsten lamp, and the spatial distribution of halogen tungsten lamp and solar spectrum differing distribution very far away.
The light source of the solar simulator used at present both at home and abroad all adopts xenon lamp as light source, has life-span short, the defect such as cost is high, volume is large.
Photovoltaic module xenon lamp solar simulator has the shortcoming that volume is large, power consumption is large, utilize LED as the light source of solar simulator, the volume of solar simulator can be reduced to a great extent and reduce to use power, reaching slightly portable, energy-conservation, that maintenance cost is low feature.Therefore, design a be applicable to any size photovoltaic cell and photovoltaic module test extremely urgent as the solar simulator of light source in order to LED.The present invention devises a LED solar simulator, is applicable to the photovoltaic cell of any size and the test of photovoltaic module.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of irradiation intensity that simultaneously can realize exporting and reaches 1000W/m
2, Spectral matching degree≤25%, the photovoltaic cell being applicable to any size of irradiation nonuniformity≤2% and irradiation instability≤2% and photovoltaic module test LED solar simulator.
The technical problem to be solved in the present invention is to provide a kind of light source, and its spatial distribution will meet the requirement of solar simulator spatial distribution under AM1.5 condition in international standard IEC60904-9-2007.
1000W/m is reached for solving on effective irradiation face
2irradiation intensity requirement, what the present invention adopted is the light source of great power LED as LED solar simulator, and the optical system combining repeatedly optically focused carries out repeatedly optically focused process, finally reaches the index request of irradiation intensity.
For solving Spectral matching problem, the present invention adopts the LED of all different wave lengths in 300nm-1100nm wavelength band to carry out the coupling of spectrum.300nm-400nm adopts AM1.5 spectral irradiance degrees of data to mate, and 400nm-1100nm adopts IEC standard to mate.According to the spectral irradiance in hundred nanometer range, utilize the plurality of LED light sources in prescribed limit to carry out the coupling of irradiation level, finally realize full wave Spectral matching.
For solving the requirement of irradiation nonuniformity on effective irradiation face, the present invention adopts LED light source array Partial controll pattern, in conjunction with square high reflectance reflection cavity structure.By adopting LED light source array stripe, the method for Partial controll, reaches the technical requirement of the irradiation nonuniformity in effective irradiation face.
For solving the requirement of irradiation instability on effective irradiation face, the present invention adopts current stabilization driving method to realize in LED control.The stabilized current supply of high stable effect is adopted to realize the requirement of the irradiation instability of high request on effective irradiation face.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is the optical system structure of photovoltaic cell of the present invention and photovoltaic module test LED solar simulator.
Fig. 2 is LED solar simulator array of source drive circuit schematic diagram.
Fig. 3 is the operation principle schematic diagram of single current stabilization circuit.
technical indicator
The present invention can reach the most high-technology index requirement specified in IEC60904-9-2007 standard.
The present invention can reach following index:
A) irradiation level 1000W/m
2;
B) Spectral matching: meet the distribution of AM1.5 spectral irradiance;
C) irradiation nonuniformity≤2.0%;
D) irradiation instability≤2.0%.
The above preferred embodiment being patent of the present invention; not thereby the scope of patent of the present invention is limited; every equivalent structure transformation utilizing patent of the present invention and accompanying drawing content to do, or be directly or indirectly used in other correlative technology fields, include within the protection domain of patent of the present invention.
Detailed description of the invention
According to irradiation intensity requirement, the LED light source that the present invention adopts all adopts the LED of 5W rated power.Be combined to form the light source of array surface light-source structure as simulator.And make reflection cavity in conjunction with collector lens and the mirror face aluminum material of the high reflectance adopting import, form spotlight effect repeatedly, improve the efficiency of light energy utilization of LED, reduction quantity of heat production, improves simulator performance.
The LED solar simulator optical system that the present invention realizes comprises the great power LED of different peak wavelength, collector lens, matte armorplate glass, the square reflection cavity of high reflectance minute surface metal, irradiation face; That described collector lens adopts is Total Internal Reflection-lenses (TIR), carries out optically focused effect to LED light source.The matte armorplate glass told is that the light of LED outgoing is formed veiling glare, the light of all wavelengths is carried out mixing first.Described high reflectance minute surface metal square reflection cavity effect is converged by peripheral luminous energy, and repeatedly mixed by mirror-reflection by the light of different wave length, and form mixed light, the light-emitting window finally by reflection cavity is radiated to irradiation face.
Spectral matching aspect: in 300nm-400nm wave-length coverage, adopts the LED of 7 kinds of different peak wavelengths to carry out the coupling of spectrum; In 400nm-500nm wave-length coverage, the LED of 8 kinds of different peak wavelengths is adopted to carry out the coupling of spectrum; In 500nm-600nm wave-length coverage, the LED of 3 kinds of different peak wavelengths is adopted to carry out the coupling of spectrum; In 600nm-700nm wave-length coverage, the LED of 2 kinds of different peak wavelengths is adopted to carry out the coupling of spectrum; In 800nm-900nm wave-length coverage, the LED of a kind of peak wavelength is adopted to carry out the coupling of spectrum; In 900nm-1100nm wave-length coverage, the LED of a kind of peak wavelength is adopted to carry out the coupling of spectrum.Adjust the light intensity value of the corresponding LED in each wave band according to the spectral irradiance of wave band internal standard, reach the coupling of all band spectrum.
Irradiation nonuniformity aspect: adopt LED light source array Partial controll method, realize the adjustment of irradiation nonuniformity on effective irradiation face.According to the irradiation level situation on irradiation face, the local light intensity in adjustment LED light source array.Realize Uniform Irradiation.
Irradiation instability aspect: LED drives and adopts current stabilization driving method, overcomes the inconsistency of cut-in voltage, reaches the light output efficiency of LED stable and consistent.The stabilized current driving circuit that the present invention adopts comprises AC-DC Switching Power Supply, LM317 three-terminal voltage-stabilizing pipe, accurate adjustable resistance and radiator.Magnitude of voltage required in circuit is obtained by AC-DC Switching Power Supply, switched power output connects LM317 voltage input end, an accurate adjustable resistance in parallel between LM317 voltage-regulation end and voltage output end, be connected in circuit finally by voltage output end, by adjusting accurate adjustable resistance, reach the driving current value of demand.Between the voltage-regulation end of LM317 and voltage output end exist a reference voltage 1.25V, in drive circuit electric current be defined as I=1.25V/R, R is the accurate adjustable resistance be connected in parallel between voltage-regulation end and voltage output end.
Claims (9)
1. non-compensation total solids light source led solar simulator, is characterized in that: simulator light source adopts solid light source LED, and LED light source comprises the LED of all different wave lengths in 300nm-1100nm wave-length coverage; LED light source adopts array structure; Optical system adopts mixed light, all light, condenser system; LED light source adopts local drive pattern separately.
2. telling according to claim 1, the LED light source that LED solar simulator adopts comprises all kinds of monochromatic light LED.
3.LED solar simulator is by the LED of all kinds of different wave length of combination, and under realizing AM1.5 condition, spectral irradiance distributes, and realizes the coupling of 300nm-1100nm all band spectrum; Any different LED wavelength combination light source is used to develop LED solar simulator all within claims.
4. telling according to claim 1, LED solar simulator the Lights section adopts array structure, and any type of LED array arrangement is all within claims.
5. telling according to claim 1, LED solar simulator optical system adopts mixed light, all light, condenser system, and adopt the collector lens of any structure, reflection cavity structure etc. carries out the form of optically focused and mixed light process all within claims.
6. telling according to claim 1, LED solar simulator array of source adopts local control model separately, and this control model comprises voltage stabilizing driving and current stabilization drives; Local separately control model can realize the adjustment of irradiation nonuniformity on effective irradiation face, reaches high-level irradiation nonuniformity requirement; Current stabilization or constant current mode is adopted to control to ensure that LED solar simulator reaches the irradiation instability index of high request; Current stabilization drives and voltage stabilizing drives all within claim protection.
7. telling according to claim 5, LED light source part adopts Partial controll pattern, and any type of series, parallel control method, the size controlling separately source region and control position are all within claims.
8. telling according to claim 1, the LED solar simulator that patent of the present invention realizes can realize the effective area of irradiation of arbitrary dimension, and the LED solar simulator of any size of structural design production is according to this all within claims.
9. told according to claim 1, solar simulator light source adopt LED light source, as long as any solar simulator use LED as light source all within claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407438.1A CN105351790A (en) | 2014-08-19 | 2014-08-19 | Non-compensation all-solid light source type LED solar simulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407438.1A CN105351790A (en) | 2014-08-19 | 2014-08-19 | Non-compensation all-solid light source type LED solar simulator |
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| CN105351790A true CN105351790A (en) | 2016-02-24 |
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| CN201410407438.1A Pending CN105351790A (en) | 2014-08-19 | 2014-08-19 | Non-compensation all-solid light source type LED solar simulator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764691A (en) * | 2016-12-31 | 2017-05-31 | 复旦大学 | A kind of solar spectrum and blackbody radiation spectrum simulation system based on quantum dot LED |
| CN107166177A (en) * | 2017-05-23 | 2017-09-15 | 广东省半导体产业技术研究院 | A kind of adjustable LED artificial sun lights illumination system layout method of spectrum |
| CN107972895A (en) * | 2017-11-20 | 2018-05-01 | 上海卫星装备研究所 | High heat flux density Orbital heat flux simulator under vacuum low-temperature environment |
| CN114165748A (en) * | 2021-11-29 | 2022-03-11 | 上海空间电源研究所 | Multi-section spectrum adjustable steady-state solar simulator |
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| US20070097681A1 (en) * | 2005-11-01 | 2007-05-03 | Chich Robert H | Lighting device |
| JP2007294143A (en) * | 2006-04-21 | 2007-11-08 | Daikin Ind Ltd | LIGHTING DEVICE AND BED HAVING THE LIGHTING DEVICE |
| CN101290340A (en) * | 2008-04-29 | 2008-10-22 | 李果华 | LED solar simulator |
| CN102095189A (en) * | 2011-01-24 | 2011-06-15 | 王常荣 | Small-particle multifunctional light emitting diode (LED) lamp radiating device |
| CN202203710U (en) * | 2011-08-08 | 2012-04-25 | 比亚迪股份有限公司 | Light-emitting diode (LED) lamp structure |
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2014
- 2014-08-19 CN CN201410407438.1A patent/CN105351790A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070097681A1 (en) * | 2005-11-01 | 2007-05-03 | Chich Robert H | Lighting device |
| JP2007294143A (en) * | 2006-04-21 | 2007-11-08 | Daikin Ind Ltd | LIGHTING DEVICE AND BED HAVING THE LIGHTING DEVICE |
| CN101290340A (en) * | 2008-04-29 | 2008-10-22 | 李果华 | LED solar simulator |
| CN102095189A (en) * | 2011-01-24 | 2011-06-15 | 王常荣 | Small-particle multifunctional light emitting diode (LED) lamp radiating device |
| CN202203710U (en) * | 2011-08-08 | 2012-04-25 | 比亚迪股份有限公司 | Light-emitting diode (LED) lamp structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764691A (en) * | 2016-12-31 | 2017-05-31 | 复旦大学 | A kind of solar spectrum and blackbody radiation spectrum simulation system based on quantum dot LED |
| CN107166177A (en) * | 2017-05-23 | 2017-09-15 | 广东省半导体产业技术研究院 | A kind of adjustable LED artificial sun lights illumination system layout method of spectrum |
| CN107972895A (en) * | 2017-11-20 | 2018-05-01 | 上海卫星装备研究所 | High heat flux density Orbital heat flux simulator under vacuum low-temperature environment |
| CN114165748A (en) * | 2021-11-29 | 2022-03-11 | 上海空间电源研究所 | Multi-section spectrum adjustable steady-state solar simulator |
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