CN101311742B - Method for testing solar battery assembly efficiency - Google Patents
Method for testing solar battery assembly efficiency Download PDFInfo
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- CN101311742B CN101311742B CN2007100410383A CN200710041038A CN101311742B CN 101311742 B CN101311742 B CN 101311742B CN 2007100410383 A CN2007100410383 A CN 2007100410383A CN 200710041038 A CN200710041038 A CN 200710041038A CN 101311742 B CN101311742 B CN 101311742B
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Abstract
The invention provides a method for testing the efficiency of a solar battery component. The problem of manpower and equipment cost waste exists in the test of the solar battery component performed by the prior art. The method of the invention provides a reference solar battery component and the corrected parameters of optical intensity and efficiency of the component are acquired; a component that is to be tested and the reference component are arranged in the same environment; the testing temperature of the environment is measured; the short circuit current of two components are measured; afterwards, the optical intensity is calculated based on the short circuit current of the reference component and the corrected parameter of the optical intensity; the short circuit current under standard testing optical intensity of the component that is to be tested is calculated based on the calculated optical intensity and the short circuit current of the component that is to be tested; and finally, the conversion efficiency of the solar battery component that is to be tested under standard environment is calculated based on the calculated short circuit current, testing temperature and the corrected parameter of efficiency. By adopting the method of the invention, the cost can be greatly saved.
Description
Technical field
The present invention relates to the solar cell field, particularly a kind of method of testing solar battery assembly efficiency.
Background technology
In the solar cell field, making large tracts of land and high-power solar module becomes the inexorable trend of development, but big assembly is in when test inconvenience very, needing special personnel that it is lifted on the tester table tests, tester table also needs to adjust according to the increase of this assembly area in addition, even needing the new tester table of making to test this large-area solar module, so high tester table cost and human cost will hinder solar module and develop towards large tracts of land high power direction.
Summary of the invention
The object of the present invention is to provide a kind of method of testing solar battery assembly efficiency, can save testing cost greatly by described method.
The object of the present invention is achieved like this: a kind of method of testing solar battery assembly efficiency, the conversion efficiency that is used for testing solar battery assembly when testing light intensity S greater than a predetermined value, this method may further comprise the steps: (1) provides a reference solar cell assembly, and records the light intensity corrected parameter As and the efficient corrected parameter Aeff of this reference component; (2) will this solar module to be measured and the reference solar cell assembly be arranged in the same environment, and record probe temperature T under this environment, and record the short-circuit current Ip and the Isc of testing component and reference component respectively; (3) short-circuit current Isc and the light intensity corrected parameter As according to reference component calculates test light intensity S; (4) calculate the short-circuit current Is of this testing component under standard testing light intensity Sc according to the test light intensity S that is calculated and the short-circuit current Ip of testing component; (5) calculate the conversion efficiency Eff of solar module to be measured under standard environment according to short-circuit current Is, the probe temperature T and the efficient corrected parameter Aeff that are calculated.
In the method for above-mentioned testing solar battery assembly efficiency, in step (1), count light intensity corrected parameter As and efficient corrected parameter Aeff according to reference solar cell assembly pairing short-circuit current and conversion efficiency under different light intensity conditions.
In the method for above-mentioned testing solar battery assembly efficiency, in step (3), S=Isc * As.
In the method for above-mentioned testing solar battery assembly efficiency, in step (4), Is=Ip * (Sc ÷ S).
In the method for above-mentioned testing solar battery assembly efficiency, in step (4), this standard testing light intensity Sc is 1000 watts every square metre.
In the method for above-mentioned testing solar battery assembly efficiency, in step (5), Eff=(Is ÷ Aeff)-[(T-25) * 0.05].
In the method for above-mentioned testing solar battery assembly efficiency, this standard environment is 25 degrees centigrade of temperature, and has the environment of standard solar spectrum irradiancy and standard testing light intensity Sc.
In the method for above-mentioned testing solar battery assembly efficiency, this predetermined value is 500 watts every square metre.
With move large-area solar module waste of manpower cost to be measured in the prior art, use this large-area assembly waste equipment cost of large-scale tester table test to compare, the method of testing solar battery assembly efficiency of the present invention is by being arranged on test short-circuit current separately under the same environment with testing component and reference component, according to the conversion efficiency that the short-circuit current and the corrected parameter of this reference component calculates this testing component, so can guarantee to have saved human cost and equipment cost under the prerequisite of measuring accuracy greatly.
Description of drawings
The method of testing solar battery assembly efficiency of the present invention is provided by following embodiment and accompanying drawing.
Fig. 1 is the process flow diagram of the method for testing solar battery assembly efficiency of the present invention.
Embodiment
Below will the method for testing solar battery assembly efficiency of the present invention be described in further detail.
The method of testing solar battery assembly efficiency of the present invention is used for the conversion efficiency of testing solar battery assembly when testing light intensity S greater than a predetermined value.In the present embodiment, described predetermined value is 500 watts every square metre.
Referring to Fig. 1, the method for testing solar battery assembly efficiency of the present invention is at first carried out step S10, and a reference solar cell assembly is provided, and records the light intensity corrected parameter As and the efficient corrected parameter Aeff of described reference component.In the present embodiment, reference component is arranged under the different light intensity, and record the short-circuit current of described reference component under described different light intensity, the data that obtain a statistical according to light intensity and short-circuit current data are light intensity corrected parameter As then, the short-circuit current that described light intensity corrected parameter As can record under different test environments according to reference component and obtain light intensity under the described test environment; And efficient corrected parameter Aeff also is the data that a foundation is tested the statistical that obtains, and it can obtain the conversion efficiency of described testing component under standard testing light intensity Sc at the short-circuit current under the standard testing light intensity Sc according to testing component.Described light intensity corrected parameter As is 1250, and described efficient corrected parameter Aeff is 5.8.
Then continue step S11, described solar module to be measured and reference solar cell assembly are arranged in the same environment, and record the probe temperature T of described environment, and record both short-circuit current Ip and Isc respectively.In the present embodiment, described probe temperature T is 28 degrees centigrade, and short-circuit current Ip and Isc are respectively 1.24 amperes and 0.56 ampere.
Then continue step S12, calculate test light intensity S according to the short-circuit current Isc of reference solar cell assembly and light intensity corrected parameter As.In the present embodiment, calculate test light intensity S, draw S at this and equal 700 watts every square metre according to formula S=Isc * As.
Then continue step S13,, calculate the short-circuit current Is of described testing component under standard testing light intensity Sc according to the test light intensity S that is calculated and the short-circuit current Ip of solar module to be measured.In the present embodiment, described standard testing light intensity Sc is 1000 watts every square metre, and described short-circuit current Is can calculate according to formula Is=Ip * (Sc ÷ S), and calculating Is at this is 1.77 amperes.
Then continue step S14, calculate the conversion efficiency Eff of solar module to be measured under standard environment according to short-circuit current Is, the probe temperature T and the efficient corrected parameter Aeff that are calculated.In the present embodiment, calculating Eff according to formula Eff=(Is ÷ Aeff)-[(T-25) * 0.05], is 14.5% so can calculate the conversion efficiency Eff of solar module to be measured under standard environment.
In sum, the method of testing solar battery assembly efficiency of the present invention provides a reference solar cell assembly, and described testing component and reference component be arranged under the same environment, record both short-circuit currents then respectively, calculate the conversion efficiency of solar module to be measured with reference to the corrected parameter of module according to the electric current, environment temperature and the solar cell that record, so can save carrying solar module to be measured to manpower that test board spent, also can save the tester table of testing solar battery assembly in addition, can save cost greatly.
Claims (4)
1. the method for a testing solar battery assembly efficiency, the conversion efficiency that is used for testing solar battery assembly when testing light intensity S greater than a predetermined value, it is characterized in that, this method may further comprise the steps: (1) provides a reference solar cell assembly, and counts light intensity corrected parameter As and efficient corrected parameter Aeff according to reference solar cell assembly pairing short-circuit current and conversion efficiency under different light intensity conditions; (2) solar module to be measured and this reference solar cell assembly are arranged in the same environment, and record probe temperature T under this environment, and record the short-circuit current Ip and the Isc of testing component and reference component respectively; (3) short-circuit current Isc and the light intensity corrected parameter As according to reference component calculates test light intensity S, wherein S=Isc * As; (4) calculate the short-circuit current Is of this testing component under standard testing light intensity Sc according to the test light intensity S that is calculated and the short-circuit current Ip of testing component, wherein Is=Ip * (Sc ÷ S); (5) calculate the conversion efficiency Eff of solar module to be measured under standard environment according to short-circuit current Is, the probe temperature T and the efficient corrected parameter Aeff that are calculated, wherein Eff=(Is ÷ Aeff)-[(T-25) * 0.05].
2. the method for testing solar battery assembly efficiency as claimed in claim 1 is characterized in that, this standard testing light intensity Sc is 1000 watts every square metre.
3. the method for testing solar battery assembly efficiency as claimed in claim 1 is characterized in that, this standard environment is 25 degrees centigrade of temperature, and has the environment of standard solar spectrum irradiancy and standard testing light intensity Sc.
4. the method for testing solar battery assembly efficiency as claimed in claim 1 is characterized in that, S is greater than 500 watts every square metre for this test light intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100410383A CN101311742B (en) | 2007-05-22 | 2007-05-22 | Method for testing solar battery assembly efficiency |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100410383A CN101311742B (en) | 2007-05-22 | 2007-05-22 | Method for testing solar battery assembly efficiency |
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| CN101311742A CN101311742A (en) | 2008-11-26 |
| CN101311742B true CN101311742B (en) | 2010-10-06 |
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| CN2007100410383A Expired - Fee Related CN101311742B (en) | 2007-05-22 | 2007-05-22 | Method for testing solar battery assembly efficiency |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101576602B (en) * | 2009-06-19 | 2010-12-29 | 南开大学 | Device used for detecting effect of up-conversion material in improving short circuit current density of solar cell |
| CN102360063B (en) * | 2011-09-20 | 2013-06-26 | 江阴鑫辉太阳能有限公司 | Method for testing spectral response and reflectivity of crystalline silicon assembly |
| US9246434B2 (en) | 2011-09-26 | 2016-01-26 | First Solar, Inc | System and method for estimating the short circuit current of a solar device |
| CN102338851B (en) * | 2011-09-28 | 2013-06-26 | 东北大学 | Plug and play detecting device for photovoltaic power generation grid-connected system |
| CN106353584A (en) * | 2016-08-31 | 2017-01-25 | 常州旷达阳光能源有限公司 | Method for testing attenuation value of photovoltaic module |
| CN108063597A (en) * | 2016-11-08 | 2018-05-22 | 阿特斯阳光电力集团有限公司 | Photovoltaic module outdoor test system and its test method |
| CN108933564A (en) * | 2018-06-08 | 2018-12-04 | 华电电力科学研究院有限公司 | A kind of photovoltaic plant reflectance coating increment life insurance structure and its increment life insurance test method |
| CN109756188B (en) * | 2019-01-18 | 2020-09-08 | 陕西众森电能科技有限公司 | Method and device for testing electrical performance of double-sided solar cell module |
| CN113964234A (en) * | 2021-09-22 | 2022-01-21 | 陕西科技大学 | Method for modulating conversion efficiency of InGaN/GaN multi-quantum well solar cell |
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| CN1124847A (en) * | 1994-04-13 | 1996-06-19 | 佳能株式会社 | Abnormality detection method, abnormality detection apparatus, and power generating system using the same |
| CN1204059A (en) * | 1997-06-30 | 1999-01-06 | 佳能株式会社 | Measuring apparatus and method for measuring characteristic of solar cell |
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Patent Citations (3)
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|---|---|---|---|---|
| CN1124847A (en) * | 1994-04-13 | 1996-06-19 | 佳能株式会社 | Abnormality detection method, abnormality detection apparatus, and power generating system using the same |
| CN1204059A (en) * | 1997-06-30 | 1999-01-06 | 佳能株式会社 | Measuring apparatus and method for measuring characteristic of solar cell |
| US6639421B1 (en) * | 1997-06-30 | 2003-10-28 | Canon Kabushiki Kaisha | Measuring apparatus and method for measuring characteristic of solar cell |
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