CN104579169A - Light intensity calibration method used for solar battery piece testing device - Google Patents
Light intensity calibration method used for solar battery piece testing device Download PDFInfo
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- CN104579169A CN104579169A CN201410822207.7A CN201410822207A CN104579169A CN 104579169 A CN104579169 A CN 104579169A CN 201410822207 A CN201410822207 A CN 201410822207A CN 104579169 A CN104579169 A CN 104579169A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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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
Abstract
The invention discloses a light intensity calibration method used for a solar battery piece testing device. The light intensity calibration method comprises steps as follows: (1), a three-main-grid battery piece is used as a standard battery piece to calibrate the testing device, so that first calibration data are obtained; (2), the three-main-grid battery piece is connected to the testing device through test probes, and the testing device is debugged to obtain second calibration data which approximate to the first calibration data within an error range; (3), the three-main-grid battery piece is connected to the testing device through solder strips, and the testing device is debugged to obtain third calibration data which approximate to the second calibration data within an error range; (4), a four-main-grid battery piece is connected to the testing device through solder strips to obtain fourth calibration data; (5), the four-main-grid batter piece is connected to the testing device through the test probes, and the testing device is debugged, so that fifth calibration data approximate to the fourth calibration data within an error range. Calibration parameters, obtained according to the steps, of the testing device are applied to testing of the four-main-grid battery piece to achieve calibration of the testing device.
Description
Technical field
The invention belongs to the technical field of measurement and test in manufacture of solar cells, especially a kind of light intensity calibration method for solar battery sheet testing apparatus.
Background technology
Solar battery sheet needs to use calibrated cell piece to calibrate testing apparatus before testing, to ensure the accuracy of test result, the process that solar cell is demarcated requires to carry out according to GB GB6497-86 " general provision that ground solar cell is demarcated ".The technical requirement defining ground monocrystalline or polycrystalline silicon solar cell demarcation in GB GB6497-86 is: AM1.5 standard solar spectrum, total solar irradiance is 1000W/m
2, the demarcation temperature of solar cell is 25 ± 1 DEG C.Demarcation equipment, before demarcation, must be calibrated through national measurement department or its specialized agency entrusted, and have relevant regulation and requirement to short circuit current measurement method and measuring accuracy, temperature error, spectral response, irradiance measurement.
Solar cell will be tested after having prepared, and to assess its characteristic and conversion efficiency, this test is normally carried out at the standard conditions, and namely light intensity is 1000W/m
2, temperature is 25 DEG C; And the assessment of light intensity is normally by using standard cell to carry out calibrating.First, the specialized agency selecting cell piece warp let-off national measurement department or its trust needing to test model demarcates, there be ISE solar energy research large-scale scientific research or the testing service mechanism such as German TUV Rwe Group in one's power under German Fraunhofer mechanism in industry Chang Song target mechanism, for the battery of different structure and design, send marking machine structure to need first to carry out research for its structure and design to demarcate, the standard cell of respective model just can be provided for test calibration.After taking the primary standard cell piece that mechanism for testing provides, use this tap to calibrate testing apparatus, concrete steps are as follows:
1) the standard cell sheet of respective model is chosen according to the model of cell piece to be tested.
2) under standard cell sheet being positioned over testing apparatus probe row, press down probe row, ensure that probe fully contacts with cell piece main grid.
3) manual calibration testing apparatus, the mode of short-circuit current coupling is used to calibrate, every unit for electrical property parameters of testing standard cell piece, observe short-circuit current Isc, open-circuit voltage Voc difference whether in claimed range, if not in scope, repeat the operation of this step until reach claimed range namely complete calibration, the light intensity that cell piece is received is 1000W/m
2.
When the structure of solar battery sheet of developer's design changes, must etc. after the professional institution to be calibrated cell piece to new construction and design studies, then carry out the demarcation of the type battery, and make primary standard cell piece.Developer needs to wait for that the longer time cycle just can take corresponding primary standard cell piece, calibrates, then could carry out Measurement accuracy to the electrical performance of cell of new construction and design to equipment, there is demarcation calibration cycle long, the shortcomings such as very flexible.
Summary of the invention
In order to solve prior art Problems existing, the invention provides a kind of calibration steps for solar battery sheet testing apparatus, when the structure of the solar battery sheet of developer's design changes, by using the primary standard cell piece of existing cell piece structure to calibrate testing apparatus, the testing apparatus after calibration is made to be applicable to carry out Measurement accuracy to the electrical property of the cell piece of new construction and design.
For achieving the above object, present invention employs following technical scheme:
For a light intensity calibration method for solar battery sheet testing apparatus, wherein, comprise step:
S101, use the primary standard cell piece of the first size battery cell sheet to calibrate testing apparatus, the light intensity that this primary standard cell piece is received when there being test probe to connect is standard testing light intensity, correspondingly obtains the first calibration data;
S102, use one first size battery cell sheet are connected to testing apparatus by test probe, corresponding acquisition the second calibration data; Debugging described testing apparatus makes the second calibration data in error range, be similar to described first calibration data, and the light intensity received when there being test probe to connect to make this first size battery cell sheet is for standard testing light intensity;
S103, on the main grid of described first size battery cell sheet, weld welding, by welding, described first size battery cell sheet is connected to testing apparatus, correspondingly obtain the 3rd calibration data; Debugging described testing apparatus makes the 3rd calibration data in error range, be similar to described second calibration data, and the light intensity that this first size battery cell sheet is received when connecting without test probe is standard testing light intensity;
S104, on the main grid of one second size battery cell sheet, weld welding, by welding, described second size battery cell sheet is connected to described testing apparatus, the light intensity that this second size battery cell sheet is received when connecting without test probe is standard testing light intensity, corresponding acquisition the 4th calibration data;
S105, described second size battery cell sheet is connected to described testing apparatus by test probe, correspondingly obtains the 5th calibration data; Debugging described testing apparatus makes the 5th calibration data in error range, be similar to described 4th calibration data, the light intensity received when there being test probe to connect to make the second size battery cell sheet is for standard testing light intensity, and the final calibration parameter obtaining described testing apparatus is applicable to test the second size battery cell sheet.
Wherein, described first size battery cell sheet and the second size battery cell sheet are the cell piece with different main grid quantity.
Wherein, described first size battery cell sheet is three main grid cell pieces, and described second size battery cell sheet is four main grid cell pieces.
Wherein, be welded to the main grid of the complete clad battery sheet of welding of cell piece and extend from the side of cell piece.
Wherein, described welding is connected to described testing apparatus by crocodile clip tool.
Wherein, described standard testing light intensity is 1000W/m
2.
Wherein, described calibration data is cell piece short-circuit current.
Wherein, described calibration data is cell piece short-circuit current and open-circuit voltage.
The light intensity calibration method for solar battery sheet testing apparatus provided in the embodiment of the present invention, be mainly used in when the structure of newly-designed solar battery sheet changes and do not have the standard cell sheet of this specification, by using the standard cell sheet of existing size battery cell sheet to calibrate testing apparatus, the calibration parameter obtaining testing apparatus is applicable to test new size battery cell sheet.The method highly shortened demarcates calibration cycle to cell piece, improves the dirigibility of demarcating calibration, is conducive to manufacture of solar cells and R & D Enterprises raising R&D and production efficiency.
Accompanying drawing explanation
Fig. 1 is the flow chart of steps of the light intensity calibration method that the embodiment of the present invention provides.
The graphical representation of exemplary of each step of the light intensity calibration method that Fig. 2 a-2e provides for the embodiment of the present invention.
Embodiment
As previously mentioned, the present invention mainly provides a kind of light intensity calibration method for solar battery sheet testing apparatus, be applied to when the structure of newly-designed solar battery sheet changes and do not have the standard cell sheet of this specification, by using the standard cell sheet of existing size battery cell sheet to calibrate testing apparatus, the calibration parameter obtaining testing apparatus is applicable to test new size battery cell sheet.Testing apparatus in the present invention mainly refers to photovoltaic IV curve tester.
Such as, existing solar battery sheet is the cell piece of three main grid structures, and has corresponding primary standard cell piece.Newly-designed solar battery sheet is the cell piece of four main grid structures, when using testing apparatus to measure cell piece, the main grid needing probe to be emitted on cell piece contacts, probe row and main grid quantity one_to_one corresponding.Due to the occlusion effect of probe row to light, the testing apparatus of being calibrated by the primary standard cell piece of three main grid cell pieces directly cannot be used in the test of four main grid cell pieces.Object of the present invention is just in order to solve problems, provide a kind of light intensity calibration method, the method can use the standard cell sheet of existing size battery cell sheet (such as three main grid cell pieces) to calibrate testing apparatus, and the calibration parameter obtaining testing apparatus is applicable to test new size battery cell sheet (such as four main grid cell pieces).
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with Fig. 1 and Fig. 2, be that four main grid structures illustrate technical scheme of the present invention for solar battery sheet from three main grid structure modifies.
As shown in Figure 1, light intensity calibration method provided by the invention comprises step:
The first step: the primary standard cell piece providing one or three main grid cell pieces, uses this standard cell sheet to calibrate testing apparatus, corresponding acquisition the first calibration data A1.Particularly, as shown in Figure 2 a, this standard cell sheet 10 is connected to testing apparatus by test probe 101, and test probe 101 comprises 3 row's probes, is emitted on the main grid 102 of cell piece, with main grid one_to_one corresponding.Manual calibration testing apparatus, the mode of short-circuit current coupling is used to calibrate, every unit for electrical property parameters of testing standard cell piece, observe short-circuit current Isc, open-circuit voltage Voc difference whether in claimed range, if not in scope, repeat the operation of this step until reach claimed range namely complete calibration, the light intensity that this standard cell sheet is received when there being test probe to connect (having probe to arrange shading) is 1000W/m
2, corresponding acquisition the first calibration data A1.
Second step: provide one or three main grid cell pieces and be connected to testing apparatus by test probe, corresponding acquisition the second calibration data A2, debugs described testing apparatus and makes the second calibration data A2 (in error range, be similar to described first calibration data A1.Particularly, as shown in Figure 2 b, three main grid cell pieces 20 are connected to testing apparatus by test probe 101, make the second calibration data A2 in error range, be similar to described first calibration data A1 by debugging testing apparatus, the light intensity received when there being test probe to connect (having probe to arrange shading) to make three main grid cell pieces 20 is for 1000W/m
2.
Three main grid cell pieces are connected to testing apparatus by welding by the 3rd step: weld welding on the main grid of three main grid cell pieces, corresponding acquisition the 3rd calibration data A3.Particularly, as shown in Figure 2 c, all main grids 102 of three main grid cell pieces 20 weld welding 103 respectively, the width of welding 103 is identical with the width of main grid 102, the length of welding 103 is greater than the length of main grid 102 to make the main grid 102 of the complete clad battery sheet of welding 103 and to extend from the side of cell piece, re-uses crocodile clip tool 104 and all weldings 103 are connected to testing apparatus.Make the 3rd calibration data A3 in error range, be similar to described second calibration data A2 by debugging testing apparatus, the light intensity received when being connected (without probe row shading) by welding to make three main grid cell pieces 20 is for 1000W/m
2.This step completes the calibration three main grid cell pieces being connected to welding connection from probe.
4th step: provide one or four main grid cell pieces, the main grid of this four main grids cell piece welds welding, by welding, four main grid cell pieces is connected to testing apparatus, corresponding acquisition the 4th calibration data A4.Particularly, as shown in Figure 2 d, all main grids 302 of four main grid cell pieces 30 weld welding 303 respectively, the width of welding 303 is identical with the width of main grid 302, the length of welding 303 is greater than the length of main grid 302 to make the main grid 302 of the complete clad battery sheet of welding 303 and to extend from the side of cell piece, re-use crocodile clip tool 104 and all weldings 303 are connected to the testing apparatus that the 3rd step alignment completes, the light intensity that now four main grid cell pieces 30 are received when being connected (arranging shading without probe) by welding is 1000W/m
2, corresponding acquisition the 4th calibration data A4.
5th step: four main grid cell pieces are connected to testing apparatus by test probe, corresponding acquisition the 5th calibration data A5, debugs described testing apparatus and makes the 5th calibration data A5 in error range, be similar to described 4th calibration data A4.Particularly, as shown in Figure 2 e, four main grid cell pieces 30 are connected to testing apparatus by test probe 301, make the 5th calibration data A5 in error range, be similar to described 4th calibration data A4 by debugging testing apparatus, the light intensity received when there being test probe to connect (having probe to arrange shading) to make four main grid cell pieces 30 is for 1000W/m
2.This step completes the calibration four main grid cell pieces being connected to probe connection from welding.
In the embodiment above, calibration data A1, A2, A3, A4, A5 wherein refers to the short-circuit current of corresponding cell piece; That is, when calibrating, main this parameter of short-circuit current considering cell piece.In some other embodiments, calibration data A1, A2, A3, A4, A5 comprise short-circuit current and open-circuit voltage; That is, when calibrating, main short-circuit current and these two parameters of open-circuit voltage considering cell piece.
The calibration parameter of the testing apparatus obtained according to above step, is applicable to test four main grid cell pieces, completes the calibration of testing apparatus.Based on more than, in the embodiment of the present invention, connect cell piece by using welding and test, as the intermediary of calibration, then realize from the conversion between welding and probe test, finally realize the mutual calibration between different main grid number of batteries.
In sum, the light intensity calibration method for solar battery sheet testing apparatus provided in the embodiment of the present invention, be mainly used in when the structure of newly-designed solar battery sheet changes and do not have the standard cell sheet of this specification, by using the standard cell sheet of existing size battery cell sheet to calibrate testing apparatus, the calibration parameter obtaining testing apparatus is applicable to test new size battery cell sheet.The method highly shortened demarcates calibration cycle to cell piece, improves the dirigibility of demarcating calibration, is conducive to manufacture of solar cells and R & D Enterprises raising R&D and production efficiency.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Obviously, protection scope of the present invention is not limited to the embodiment of appeal, and those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (8)
1., for a light intensity calibration method for solar battery sheet testing apparatus, it is characterized in that, comprise step:
S101, use the primary standard cell piece of the first size battery cell sheet to calibrate testing apparatus, the light intensity that this primary standard cell piece is received when there being test probe to connect is standard testing light intensity, correspondingly obtains the first calibration data;
S102, use one first size battery cell sheet are connected to testing apparatus by test probe, corresponding acquisition the second calibration data; Debugging described testing apparatus makes the second calibration data in error range, be similar to described first calibration data, and the light intensity received when there being test probe to connect to make this first size battery cell sheet is for standard testing light intensity;
S103, on the main grid of described first size battery cell sheet, weld welding, by welding, described first size battery cell sheet is connected to testing apparatus, correspondingly obtain the 3rd calibration data; Debugging described testing apparatus makes the 3rd calibration data in error range, be similar to described second calibration data, and the light intensity that this first size battery cell sheet is received when connecting without test probe is standard testing light intensity;
S104, on the main grid of one second size battery cell sheet, weld welding, by welding, described second size battery cell sheet is connected to described testing apparatus, the light intensity that this second size battery cell sheet is received when connecting without test probe is standard testing light intensity, corresponding acquisition the 4th calibration data;
S105, described second size battery cell sheet is connected to described testing apparatus by test probe, correspondingly obtains the 5th calibration data; Debugging described testing apparatus makes the 5th calibration data in error range, be similar to described 4th calibration data, the light intensity received when there being test probe to connect to make the second size battery cell sheet is for standard testing light intensity, and the final calibration parameter obtaining described testing apparatus is applicable to test the second size battery cell sheet.
2. the light intensity calibration method for solar battery sheet testing apparatus according to claim 1, is characterized in that, described first size battery cell sheet and the second size battery cell sheet are the cell piece with different main grid quantity.
3. the light intensity calibration method for solar battery sheet testing apparatus according to claim 2, is characterized in that, described first size battery cell sheet is three main grid cell pieces, and described second size battery cell sheet is four main grid cell pieces.
4. the light intensity calibration method for solar battery sheet testing apparatus according to claim 1, is characterized in that, is welded to the main grid of the complete clad battery sheet of welding of cell piece and extends from the side of cell piece.
5. the light intensity calibration method for solar battery sheet testing apparatus according to claim 4, it is characterized in that, described welding is connected to described testing apparatus by crocodile clip tool.
6. the light intensity calibration method for solar battery sheet testing apparatus according to claim 1, is characterized in that, described standard testing light intensity is 1000W/m
2.
7., according to the arbitrary described light intensity calibration method for solar battery sheet testing apparatus of claim 1-6, it is characterized in that, described calibration data is cell piece short-circuit current.
8., according to the arbitrary described light intensity calibration method for solar battery sheet testing apparatus of claim 1-6, it is characterized in that, described calibration data is cell piece short-circuit current and open-circuit voltage.
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| CN106533362A (en) * | 2016-12-30 | 2017-03-22 | 中建材浚鑫科技股份有限公司 | Photovoltaic module power testing method |
| CN106788246A (en) * | 2016-11-30 | 2017-05-31 | 浙江创盛光能源有限公司 | A kind of tester light intensity uniformity detection calibration method |
| CN109037091A (en) * | 2018-06-12 | 2018-12-18 | 泰州隆基乐叶光伏科技有限公司 | A kind of slice battery reference plate and its scaling method |
| CN109347438A (en) * | 2018-09-27 | 2019-02-15 | 苏州润阳光伏科技有限公司 | A kind of test method of imbrication battery |
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| CN104579169B (en) | 2017-02-22 |
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