CN1120375C - Solar cell testing instrument with linear pulse light source - Google Patents
Solar cell testing instrument with linear pulse light source Download PDFInfo
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- CN1120375C CN1120375C CN 01113030 CN01113030A CN1120375C CN 1120375 C CN1120375 C CN 1120375C CN 01113030 CN01113030 CN 01113030 CN 01113030 A CN01113030 A CN 01113030A CN 1120375 C CN1120375 C CN 1120375C
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- light source
- light
- solar cell
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Abstract
The present invention relates to a single solar cell tester in the form of a linear pulse light source. A pulse xenon lamp is adopted as a linear light source, an electronic load circuit with a constant voltage is adopted for testing, and a computer measurement and control system is adopted for carrying out the control and the data processing of a test process. In a light path system, the linear light source is combined with the reflection of a paraboloidal reflecting mirror and two plane mirrors so that the requirements for the uniformity of simulated light can be met, and the tester can have a smaller volume. The present invention solves the problem of temperature rise of a steady-state simulator in the test process and has the advantages of simple processing of an adopted paraboloid, perfect measurement and control circuit and correct measurement of single solar cells.
Description
Technical field:
The present invention relates to a kind of solar cell testing instrument, relate in particular to a kind of solar cell testing instrument of linear pulse light source, can measure the volt-ampere characteristic of single solar cell, and and then obtain various unit for electrical property parameters.Belong to the solar cell technical field of measurement and test.
Background technology:
Solar cell testing instrument is generally formed complete or support equipment by several sections such as solar simulator, electronic load and computer data processing systems, wherein solar simulator stable state arranged with two kinds of pulseds, external early stage monomer testing apparatus all is a stable state, simulated solar irradiation impinges upon on the tested battery, is measured the performance of battery by test circuit.The shortcoming of this tester maximum is that the temperature inconvenience of tested battery is measured and control, though increased the thermostatted water system, but the factor that influences battery performance comes down to the PN junction temperature of battery, though therefore the back electrode of solar cell contacts with the thermostatted water system and remains on constant temperature, but the PN junction temperature of battery upper surface is to raise gradually along with the irradiation of permanent light source, and this will inevitably have influence on precision of test result.External monomer testing apparatus generally adopts pointolite, and the parabolic ball reflects as analog light source, and this is very high to parabolic ball requirement on machining accuracy, the least bit of difference, and a thousand li of mistake, and be not easy to pointolite is adjusted to suitable position.Correlation technique has the SPI-CELL TEST 150 Solar Cell Tester of SPIRE company, and what this technology adopted is exactly stable light source, certainly will influence in the measuring process battery PN junction temperature (
Http:// www.spirecorp.com).
Summary of the invention:
The objective of the invention is to the above-mentioned deficiency at prior art, design provides a kind of solar cell testing instrument of linear pulse light source, makes it simple and reasonable, and convenient test is accurate.
In order to realize such purpose, in the design proposal of the present invention, adopt pulse xenon lamp as the p-wire light source, and designed unique light path system, adopt the electronic load circuit of deciding voltage to test, by computing machine test process is controlled the line data of going forward side by side and handle.The pulse xenon lamp flashing control circuit is subjected to the control of computer measurement and control system; line source shines on the tested battery by light path system; decide the voltage electronic load and receive the two ends of tested battery; decide the control that the voltage electronic load is subjected to computer measurement and control system; and and temperature-compensation circuit, circuit overcurrent protection with decide the two feedback circuits of voltage and be connected.In the light path system, adjusting screw(rod) and fixed hinge are fixed on two plane mirrors on the shell, the parabolic reflector minute surface is fixed on the base, the taps light source is fixed on the base by the tunable optical source(-)holder, the simulated light that line source sends is through the directional light that reflects to form of parabolic reflector minute surface, directional light again by optical filter, arrives tested cell plane after the reflection of the plane mirror of two miter angles.
The present invention adopted tens kilowatts of instantaneous powers and average power only for its stroboscopic pulse xenon lamp of 1/10th as testing light source, the duration of each light pulse is the millisecond order of magnitude, a data point on the volt-ampere characteristic is measured in each flash of light, the voltage of deciding the voltage electronic load in the test process is by certain sequence variation, obtain a series of data point on the volt-ampere characteristic, and a data storage that obtains is to internal memory, wait for data processing, the computer data processing procedure mainly comprises: curve fitting, the solar cell unit for electrical property parameters calculates, data filtering arrangement etc.
The present invention adopts the electronic load of deciding voltage, finishes the test of low-voltage and high-current, and this circuit realizes determining battery external circuit voltage; accept also have temperature-compensation circuit outside the function of battery current, decide the two feedback circuits of voltage; circuit overcurrent protection, pulse xenon lamp flashing control circuit etc.
The present invention has designed unique light path system, adopts line source and parabolic reflector minute surface, light source base can about, the front and back two-freedom regulates, to realize the position adjustments of taps light source.Keep the tester smaller volume in order to increase uniformity of light simultaneously, must increase the range of illumination, adopt two plane mirrors to realize that two secondary flats are reflective, to reach the uniformity of light requirement on the testing stand.In order to improve the spectrum of simulated light, on light path, add optical filter.
The present invention has adopted unique light path system, the position of taps light source and parabolic reflector minute surface can be by the slide block adjustment on the light source base, adopt two plane mirrors to realize that two secondary flats are reflective, and add optical filter, guaranteed the uniformity requirement of simulated light to improve the spectrum of simulated light.The invention solves problem of temperature rise in the steady-state simulation device test process, the parabola processing of employing is simple, and telemetry circuit is perfect, realizes the accurate measurement of single solar cell.
Description of drawings:
Fig. 1 is that control system of the present invention is formed synoptic diagram.
Fig. 2 is a light path system of the present invention.
Among Fig. 2,2 is the taps light source, and 9 is the parabolic reflector minute surface, and 10 is shell, and 11 is adjusting screw(rod), and 12 is plane mirror, and 13 is directional light, and 14 is fixed hinge, and 15 is optical filter, and 16 is tested cell plane, and 17 is base.
Fig. 3 is the structural representation that the tunable optical source(-)holder is connected with taps light source, parabolic reflector minute surface.
Among Fig. 3,2 is the taps light source, and 9 is the parabolic reflector minute surface, and 17 is base, and 18 is light source base, and 19 is the adjustable slide block of fore-and-aft direction, and 20 is the adjustable slide block of above-below direction.
Embodiment:
Below in conjunction with accompanying drawing technical scheme of the present invention is further described.
Fig. 1 is that control system of the present invention is formed synoptic diagram.
As shown in the figure; pulse xenon lamp flashing control circuit 1 is under the control of computer measurement and control system 8; trigger pulse xenon lamp line source 2; 2 flashes of light of xenon lamp line source; shine on the tested battery 3 by light path system; decide voltage electronic load 4 and receive the two ends of tested battery 3; decide the control that voltage electronic load 4 is subjected to computer measurement and control system 8; the external circuit voltage of battery is remained under the certain voltage; temperature-compensation circuit 7, circuit overcurrent protection 5 and decide the various performance parameters that the two feedback circuits 6 assurance electronic loads 4 of voltage can accurately be measured solar cell 3.
The present invention adopts decides the test that low-voltage and high-current is finished in voltage electronic load 4, and wherein temperature-compensation circuit 7 can guarantee that instrument works and do not cause too big measuring error in wider temperature range.
Fig. 2 is a light path system of the present invention.
As shown in the figure, base 17 and shell 10 constitute the supporting mechanism of tester, adjusting screw(rod) 11 and fixed hinge 14 are fixed on two plane mirrors 12 on the shell 10, and guaranteed the adjusting of plane mirror 12 certain angles, parabolic reflector minute surface 9 is fixed on the base 17, taps light source 2 is fixed on the base 17 by the tunable optical source(-)holder, make line source 2 can be adjusted in the focal position of parabolic reflector minute surface 9 within the specific limits, like this, the simulated light that line source 2 sends reflects to form directional light 13 through parabolic reflector minute surface 9, directional light 13 passes through optical filter 15 again after the reflection of the plane mirror 12 of two miter angles, arrive tested cell plane 16, obtain the simulated light hot spot of unevenness less than ± 2% Ф 180mm.
Fig. 3 is the structural representation that the tunable optical source(-)holder is connected with taps light source, parabolic reflector minute surface.
As shown in the figure, taps light source 2 is placed on the light source base 18, light source base 18 is fixed on the base 17, is fixed with the adjustable slide block 20 of fore-and-aft direction adjustable slide block 19 and above-below direction on the light source base 18, and realization taps light source 2 is regulated with respect to the two-freedom of parabolic reflector minute surface 9 and be fixing.
Claims (2)
1; a kind of solar cell testing instrument of linear pulse light source; it is characterized in that adopting pulse xenon lamp is line source (2); adopt the electronic load circuit (4) of deciding voltage to test; by computer measurement and control system (8) test process being controlled the line data of going forward side by side handles; pulse xenon lamp flashing control circuit (1) is subjected to the control of computer measurement and control system (8); line source (2) shines on the tested battery (3) by light path system; decide voltage electronic load (4) and receive the two ends of tested battery (3); decide voltage electronic load (4) and be subjected to the control of computer measurement and control system (8); and with temperature-compensation circuit (7); circuit overcurrent protection (5) with decide the two feedback circuits (6) of voltage and be connected; in the light path system; adjusting screw(rod) (11) and fixed hinge (14) are fixed on two plane mirrors (12) on the shell (10); parabolic reflector minute surface (9) is fixed on the base (17); taps light source (2) is fixed on the base (17) by tunable optical source(-)holder (18); the simulated light that line source (2) sends reflects to form directional light (13) through parabolic reflector minute surface (9); directional light (13) again by optical filter (15), arrives tested cell plane (16) after the reflection of the plane mirror (12) of two miter angles.
2, as the solar cell testing instrument of the said linear pulse light source of claim 1, it is characterized in that being fixed with on the light source base (18) adjustable slide block of fore-and-aft direction (19) and the adjustable slide block (20) of above-below direction, realization taps light source (2) is regulated with respect to the two-freedom of parabolic reflector minute surface (9) and is fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01113030 CN1120375C (en) | 2001-05-31 | 2001-05-31 | Solar cell testing instrument with linear pulse light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01113030 CN1120375C (en) | 2001-05-31 | 2001-05-31 | Solar cell testing instrument with linear pulse light source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1335513A CN1335513A (en) | 2002-02-13 |
| CN1120375C true CN1120375C (en) | 2003-09-03 |
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ID=4659775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01113030 Expired - Fee Related CN1120375C (en) | 2001-05-31 | 2001-05-31 | Solar cell testing instrument with linear pulse light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1120375C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314973C (en) * | 2003-10-23 | 2007-05-09 | 上海交通大学 | Single flash testing instrument of film solar battery assembly |
| CN100412542C (en) * | 2005-10-01 | 2008-08-20 | 中国科学院等离子体物理研究所 | Method for real-timely testing performance of multi-channel photovoltaic cell |
| GB0821146D0 (en) | 2008-11-19 | 2008-12-24 | Univ Denmark Tech Dtu | Method of testing solar cells |
| CN101806862A (en) * | 2010-02-26 | 2010-08-18 | 常州亿晶光电科技有限公司 | Simulation light source device for solar battery attenuation test |
| CN103064030B (en) * | 2012-12-21 | 2015-05-27 | 杨军 | System and method for battery light converging testing and sample platform for battery light converging testing |
| CN103399246B (en) * | 2013-08-29 | 2015-12-23 | 烟台市牟平海联联合有限责任公司 | A kind of electrical performance of cell detects and control system of classifying automatically |
-
2001
- 2001-05-31 CN CN 01113030 patent/CN1120375C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1335513A (en) | 2002-02-13 |
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