CN110648937A - Solar cell voltage distribution measuring method and measuring device thereof - Google Patents
Solar cell voltage distribution measuring method and measuring device thereof Download PDFInfo
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- CN110648937A CN110648937A CN201911011946.7A CN201911011946A CN110648937A CN 110648937 A CN110648937 A CN 110648937A CN 201911011946 A CN201911011946 A CN 201911011946A CN 110648937 A CN110648937 A CN 110648937A
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- 238000009826 distribution Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000000523 sample Substances 0.000 claims abstract description 115
- 238000005259 measurement Methods 0.000 claims abstract description 15
- 238000012360 testing method Methods 0.000 claims description 22
- 238000012545 processing Methods 0.000 claims description 12
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- 229910052724 xenon Inorganic materials 0.000 claims description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 2
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- 238000010586 diagram Methods 0.000 description 2
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/14—Measuring as part of the manufacturing process for electrical parameters, e.g. resistance, deep-levels, CV, diffusions by electrical means
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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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
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Abstract
The invention discloses a solar cell voltage distribution measuring method, which is characterized by comprising the following steps: comprises the following steps: s1, according to the number N of slices of a solar cell, M groups of voltage probes are adopted, each group of voltage probes comprises an upper probe and a lower probe, at least one group of voltage probes is arranged on each slice of the solar cell during measurement, and the upper probe and the lower probe of each voltage probe are respectively contacted with a front electrode and a back electrode of the slice of the solar cell; independently collecting the open-circuit voltage of each sliced battery collected by each group of voltage probes to obtain M open-circuit voltage values; wherein N is more than or equal to M is less than or equal to 100; and S2, comparing any two of the M open-circuit voltage values, and judging that the voltage distribution of the sliced batteries is not uniform if the set conditions are met. The invention also provides a device for measuring the voltage distribution of the solar cell. The invention provides a battery pack, which comprises the following components: the internal voltage of the sliced battery is measured, and the battery piece with uniform voltage distribution is screened out at the battery end, so that the yield of the assembly end product is improved.
Description
Technical Field
The invention provides a solar cell voltage distribution measuring method and a measuring device thereof, belonging to the technical field of solar cells and components.
Background
With the increasing demand for energy and the increasing enhancement of environmental protection in countries around the world, the popularization and application of clean energy have become a necessary trend. Solar energy is gaining favor from various countries as an environment-friendly, safe and pollution-free clean energy. The single solar cell cannot be directly used as a power supply. When the solar cell module is used as a power supply, a plurality of single solar cells are connected in series and in parallel and are tightly packaged into a photovoltaic module. The same module must be composed of solar cells with similar electrical properties, otherwise the solar cells are mismatched in series or parallel. In the prior art, generally, the solar cell is graded at the manufacturing end of the solar cell through an IV tester, and the cells with similar electrical properties are classified into one grade, so that the technical problem of mismatch of series connection or parallel connection of the cells possibly faced by manufacturing a photovoltaic module is solved.
However, in recent years, with the spread of new types of modules such as half-cut modules and stack modules, it is necessary to cut a single cell into two or more cells when manufacturing the module, and in this case, higher requirements are placed on the uniformity of the internal performance of the same cell. The traditional IV testing machine only has one voltage acquisition channel, obtains the integral voltage of one battery, and ignores the problem of non-uniformity of the distribution of the internal voltage of the same battery.
Therefore, a testing method for a single-chip solar cell needs to be designed, and internal voltages of different positions of a cell are measured, so that the cell with uniform voltage distribution is smoothly screened out, and the yield of a subsequent slicing procedure is improved.
Disclosure of Invention
The invention provides a solar cell voltage distribution measuring method aiming at the technical problem that the uniformity of the internal voltage of a single cell cannot be detected in the prior art, and the measuring method is used for measuring the sliced cell forming a component, so that the sliced cell with uniform voltage distribution is smoothly screened out, and the yield of the component is improved. The invention also provides a measuring device based on the measuring method.
The technical scheme adopted by the invention is as follows:
a solar cell voltage distribution measuring method comprises the following steps:
s1, according to the number N of slices of a solar cell, M groups of voltage probes are adopted, each group of voltage probes comprises an upper probe and a lower probe, at least one group of voltage probes is arranged on each slice of the solar cell during measurement, and the upper probe and the lower probe of each voltage probe are respectively contacted with a front electrode and a back electrode of the slice of the solar cell; independently collecting the open-circuit voltage of each sliced battery collected by each group of voltage probes to obtain M open-circuit voltage values; wherein N is more than or equal to M is less than or equal to 100;
s2, comparing any two of the M open-circuit voltage values, if the following formula is satisfied, judging that the voltage distribution of the sliced batteries is not uniform, and putting the sliced batteries into a gear with non-uniform voltage so as to eliminate the defects:
|Vi-Vj|＞c
wherein Vi,VjThe measured open circuit voltage value of the sliced cell, i is 1,2,3 … N, j is 1,2,3 … N, c is a constant greater than 1 mV; namely: when the difference of the open circuit voltage value between any two of the sliced cells formed by slicing the same solar cell is more than 1mV, the internal voltage of the sliced cells is judged to be unevenAnd (4) homogenizing.
Furthermore, during measurement, more than two groups of voltage probes are arranged on each sliced battery for measurement, and the voltage probe groups are uniformly distributed on the sliced batteries.
Furthermore, when measuring, more than two groups of voltage probes are arranged on each sliced battery for measurement, and the voltage probe groups are unevenly distributed on the sliced battery.
In another aspect of the present invention, there is provided a solar cell voltage distribution measuring apparatus including:
the conveying device is used for conveying the battery pieces to be tested;
the test bench is positioned on a conveying path of the conveying device, and is provided with a plurality of groups of voltage probes, each group of voltage probes comprises an upper probe and a lower probe, and the voltage probes are respectively contacted with a front electrode and a back electrode of the sliced battery during testing;
the light source is positioned above the test board and provides illumination during testing;
the data acquisition card is used for collecting open-circuit voltage data acquired by the voltage probe;
the automatic sorting machine is used for grading the battery pieces according to the test result;
and the main control unit is connected with the light source, the multi-channel data acquisition card and the automatic sorting machine, sends an instruction to the light source to control the opening and the brightness of the light source, simultaneously performs data processing on the open-circuit voltage information collected by the multi-channel data acquisition card, and outputs a processing result for the automatic sorting machine to execute.
Furthermore, the upper probe and the lower probe are respectively arranged in rows to form an upper probe row and a lower probe row, and the positions of the upper probe row and the lower probe row are respectively optimized, so that any group of voltage probes can independently acquire the open-circuit voltage of a slice battery.
Further, the light source is a xenon lamp, a light emitting diode or a halogen lamp.
Furthermore, the data acquisition card is a multi-channel data acquisition card and is provided with more than two data acquisition channels.
Further, the measurement process of the solar cell voltage distribution measuring device is as follows:
a plurality of sliced batteries are conveyed to a test board through a conveyor belt, when the sliced batteries reach the position of a probe row, an upper probe row is pressed down, a lower probe row is pressed up so as to be in contact with a main grid line of the sliced batteries, after the probe row is pressed up and pressed down to reach a preset stroke, a light source is started to irradiate the batteries, each group of voltage probes collects open-circuit voltages of each sliced battery, meanwhile, a multi-channel data acquisition card collects the open-circuit voltages of each group of probes, the collected open-circuit voltage values are sent to a main control unit for data processing, processing results are sent to an automatic sorting machine, and the automatic sorting machine sorts the sliced batteries.
Further, the main control unit may be an independent control unit, or may be integrated in an existing tester system.
In the invention, the sliced cell refers to N small cell pieces formed by cutting a solar cell with a conventional size (such as 158.75mm X158.75 mm) into N equal parts by laser; the voltage refers to an open circuit voltage.
Compared with the prior art, the invention has the following beneficial effects:
(1) the independent voltage measurement is carried out on each sliced battery, the internal voltage of the unit batteries (namely, sliced batteries) forming the assembly is measured, the battery pieces with uniform voltage distribution are screened out at the battery end, and the yield of the assembly end product is improved.
(2) The invention has lower requirement on the precision of the equipment, greatly reduces the cost and realizes the complete localization;
(3) the measuring method and the measuring device are relatively simple in process and structure, are easy to integrate into the existing process flow and equipment for large-scale production, and are suitable for large-scale production.
Drawings
FIG. 1 is a schematic view of a measurement process of the measurement apparatus of the present invention;
FIG. 2 is a schematic structural diagram of a measuring device according to the present invention;
FIG. 3 is a schematic diagram of the distribution of voltage probes in the measuring device of the present invention;
in the figure, 1 is a conveying device, 2 is a test bench, 3 is a voltage probe, 4 is a light source, 5 is a data acquisition card, 6 is an automatic sorting machine, 7 is a main control unit, 8 is a sliced battery, 9 is a solar battery main grid, 10 is a voltage uniformity detector, and 11 is a gear box of the automatic sorting machine.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below.
Example 1:
this embodiment is a specific description of the method for measuring voltage distribution of a solar cell provided by the present invention, which is used to measure a solar cell for a half-cut photovoltaic module, in which in this embodiment, N is equal to 2, and M is 4.
The method for measuring the voltage distribution of the solar cell comprises the following steps:
s1, cutting the cell into halves to form two half-cut cells, adopting 4 groups of voltage probes, uniformly arranging two groups of voltage probes on each half-cut cell, and respectively contacting the front and the back of a main grid of the half-cut cell by the upper probe and the lower probe of each group of voltage probes; independently collecting the open-circuit voltage collected by each group of voltage probes to obtain 4 open-circuit voltage values;
s2, comparing any two open circuit voltage values in the 4 open circuit voltage values, if any two open circuit voltage values are more than 1mV, determining that the voltages are respectively uneven, and putting the 2-piece sliced battery into a gear with uneven open voltage distribution; otherwise, if any two open circuit voltage values are less than 1mV, the voltage distribution of the sliced cells is considered to be uniform.
Example 2:
this embodiment is a specific description of the method for measuring voltage distribution of a solar cell according to the present invention, which is used to measure a solar cell sliced by 1/4 through 4 equal divisions, where N is equal to 4 and M is 10.
The method for measuring the voltage distribution of the solar cell comprises the following steps:
s1, cutting the cell slice into four 1/4 sliced cells by 4 equal parts, wherein 10 groups of voltage probes are adopted, two groups of voltage probes are uniformly distributed on part of the sliced cells, three groups of voltage probes are uniformly distributed on part of the sliced cells, and the upper probe and the lower probe of each group of voltage probes are respectively contacted with the front side and the back side of the main grid of the sliced cell; independently collecting the open-circuit voltage collected by each group of voltage probes to obtain 10 open-circuit voltage values;
s2, comparing any two open circuit voltage values in the 10 open circuit voltage values, if any two open circuit voltage values are more than 1mV, determining that the voltages are respectively uneven, and putting the 4-piece sliced battery into a gear with uneven open voltage distribution; otherwise, if any two open circuit voltage values are less than 1mV, the voltage distribution of the sliced cells is considered to be uniform.
Example 3:
the present embodiment is different from embodiment 1 in that: n equals 2 and M is 2.
Example 4:
the present embodiment is different from embodiment 2 in that: n is equal to 4, M is 6, one group of voltage probes are arranged on part of the sliced cells, and two groups of voltage probes are unevenly arranged on part of the sliced cells.
Example 5:
as shown in fig. 1 to 3, the present embodiment provides a solar cell voltage distribution measuring apparatus, including:
the conveying device 1 is used for conveying the battery pieces to be tested; in this embodiment, the conveying means is a conveyor belt;
the test bench 2 is positioned on a conveying path of the conveying device, and is provided with a plurality of groups of voltage probes 3, each group of voltage probes comprises an upper probe and a lower probe, and the voltage probes respectively contact with a front electrode and a back electrode of the sliced battery during testing;
the light source 4 is positioned above the test board and provides illumination during testing;
the data acquisition card 5 is used for collecting open-circuit voltage data acquired by the voltage probe; in this embodiment, the data acquisition card is a multi-channel data acquisition card having more than 2 data acquisition channels.
The automatic sorting machine 6 is used for grading the battery pieces according to the test results;
and the main control unit 7 is connected with the light source 4, the data acquisition card 5 and the automatic sorting machine 6, sends an instruction to the light source 4 to control the starting of the light source, simultaneously performs data processing on the open-circuit voltage information collected by the data acquisition card 5, outputs a processing result, is used for the automatic sorting machine 6 to execute sorting operation, and respectively loads qualified and unqualified battery pieces into the gear box 11 of the automatic sorting machine. The test platform 2, the light source 4, the data acquisition card 5 and the main control unit 7 together form a voltage uniformity detector 10 of the present application, as shown in fig. 2.
As shown in fig. 2, the upper probe and the lower probe are respectively arranged in a row to form an upper probe row and a lower probe row, and the positions of the upper probe row and the lower probe row are respectively optimized, so that any group of voltage probes can independently collect the open-circuit voltage of a slice battery. In this embodiment, the probes on the probe row are movably arranged, so that the position relationship between the probes on the probe row is variable, and thus, any one group of voltage probes can independently acquire the open-circuit voltage of one slice of battery, and of course, the plurality of groups of probes can also respectively acquire the voltage data of one slice of battery.
Specifically, the light source 4 may be a xenon lamp, a light emitting diode, or a halogen lamp.
The invention provides a solar cell voltage distribution measuring device, which comprises the following measuring processes:
a plurality of sliced batteries 8 are conveyed to a test board 2 through a conveyor belt 1, when the sliced batteries reach a probe row position, an upper probe row is pressed downwards, a lower probe row is pressed upwards so as to be in contact with a main grid 9 of the sliced batteries, after the probe row is pressed upwards and downwards to reach a preset stroke, a light source is started to irradiate the batteries, each group of voltage probes collects open-circuit voltage of each sliced battery, meanwhile, a multi-channel data acquisition card collects the open-circuit voltage of each group of probes, the collected open-circuit voltage value is sent to a main control unit for data processing, a processing result is sent to an automatic sorting machine, and the automatic sorting machine sorts the sliced batteries.
The main control unit may be an independent control unit, or may be integrated in an existing tester system. The application range of the measuring method and the measuring device is increased.
The present invention is not limited to the embodiments described above, but rather, the present invention is applicable to various other embodiments. All equivalent changes and modifications made within the scope of the present invention should be considered as the technical scope of the present invention.
Claims (9)
1. A solar cell voltage distribution measuring method is characterized in that: comprises the following steps:
s1, according to the number N of slices of a solar cell, M groups of voltage probes are adopted, each group of voltage probes comprises an upper probe and a lower probe, at least one group of voltage probes is arranged on each slice of the solar cell during measurement, and the upper probe and the lower probe of each voltage probe are respectively contacted with a front electrode and a back electrode of the slice of the solar cell; independently collecting the open-circuit voltage of each sliced battery collected by each group of voltage probes to obtain M open-circuit voltage values; wherein N is more than or equal to M is less than or equal to 100;
s2, comparing any two of the M open-circuit voltage values, if the following formula is satisfied, judging that the voltage distribution of the sliced batteries is not uniform, and putting the sliced batteries into a gear with non-uniform voltage so as to eliminate the defects:
|Vi-Vj|＞c；
wherein Vi,VjThe measured open circuit voltage value of the sliced cell, i is 1,2,3 … N, j is 1,2,3 … N, c is a constant greater than 1 mV; namely: when the difference in open circuit voltage values between any two of the sliced cells formed by slicing the same solar cell is greater than 1mV, it is determined that the internal voltages of the sliced cells are not uniform.
2. The solar cell voltage distribution measuring method according to claim 1, characterized in that: during measurement, more than two groups of voltage probes are arranged on each sliced battery for measurement, and the voltage probe groups are uniformly distributed on the sliced batteries.
3. The solar cell voltage distribution measuring method according to claim 1, characterized in that: during measurement, more than two groups of voltage probes are arranged on each sliced battery for measurement, and the voltage probe groups are unevenly distributed on the sliced battery.
4. A solar cell voltage distribution measuring device is characterized in that: the method comprises the following steps:
the conveying device is used for conveying the battery pieces to be tested;
the test bench is positioned on a conveying path of the conveying device, and is provided with a plurality of groups of voltage probes, each group of voltage probes comprises an upper probe and a lower probe, and the voltage probes are respectively contacted with a front electrode and a back electrode of the sliced battery during testing;
the light source is positioned above the test board and provides illumination during testing;
the data acquisition card is used for collecting open-circuit voltage data acquired by the voltage probe;
the automatic sorting machine is used for grading the battery pieces according to the test result;
and the main control unit is connected with the light source, the multi-channel data acquisition card and the automatic sorting machine, sends an instruction to the light source to control the opening and the brightness of the light source, simultaneously performs data processing on the open-circuit voltage information collected by the multi-channel data acquisition card, and outputs a processing result for the automatic sorting machine to execute.
5. The solar cell voltage distribution measuring apparatus according to claim 4, characterized in that: the upper probe and the lower probe are respectively arranged in rows to form an upper probe row and a lower probe row, and the upper probe row and the lower probe row are respectively optimized in position, so that any group of voltage probes can independently acquire the open-circuit voltage of a slice battery.
6. The solar cell voltage distribution measuring apparatus according to claim 4, characterized in that: the light source is a xenon lamp, a light emitting diode or a halogen lamp.
7. The solar cell voltage distribution measuring apparatus according to claim 4, characterized in that: the data acquisition card is a multi-channel data acquisition card and is provided with more than two data acquisition channels.
8. The solar cell voltage distribution measuring apparatus according to claim 4, characterized in that: the main control unit may be an independent control unit, or may be integrated in an existing tester system.
9. The solar cell voltage distribution measuring apparatus according to claim 4, characterized in that: the measurement process is as follows:
a plurality of sliced batteries are conveyed to a test board through a conveyor belt, when the sliced batteries reach the position of a probe row, an upper probe row is pressed downwards, a lower probe row is pressed upwards so as to be in contact with a main grid of the sliced batteries, after the probe row is pressed upwards and downwards to reach a preset stroke, a light source is started to irradiate the batteries, each group of voltage probes collects open-circuit voltages of each sliced battery, meanwhile, a multi-channel data acquisition card collects the open-circuit voltages of each group of probes, the collected open-circuit voltage values are sent to a main control unit for data processing, processing results are sent to an automatic sorting machine, and the automatic sorting machine sorts the sliced batteries.
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| CN201911011946.7A CN110648937A (en) | 2019-10-23 | 2019-10-23 | Solar cell voltage distribution measuring method and measuring device thereof |
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| CN201911011946.7A CN110648937A (en) | 2019-10-23 | 2019-10-23 | Solar cell voltage distribution measuring method and measuring device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118151030A (en) * | 2024-05-10 | 2024-06-07 | 黑龙江瑞兴科技股份有限公司 | Battery monitoring method and system for railway backup power supply |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011099746A (en) * | 2009-11-05 | 2011-05-19 | Kyoshin Denki Kk | Sample stand for measuring solar battery cell |
| CN202486280U (en) * | 2012-03-07 | 2012-10-10 | 苏州市职业大学 | Photovoltaic cell four-probe five point synchronous test bench |
| JP2016086573A (en) * | 2014-10-28 | 2016-05-19 | 日置電機株式会社 | Property measurement method for solar panel, and device therefor |
| CN106452361A (en) * | 2016-11-06 | 2017-02-22 | 常州天合光能有限公司 | Testing device for double-surface solar battery and testing method of testing device |
| CN210692487U (en) * | 2019-10-23 | 2020-06-05 | 天合光能股份有限公司 | Solar cell voltage distribution measuring device |
-
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- 2019-10-23 CN CN201911011946.7A patent/CN110648937A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011099746A (en) * | 2009-11-05 | 2011-05-19 | Kyoshin Denki Kk | Sample stand for measuring solar battery cell |
| CN202486280U (en) * | 2012-03-07 | 2012-10-10 | 苏州市职业大学 | Photovoltaic cell four-probe five point synchronous test bench |
| JP2016086573A (en) * | 2014-10-28 | 2016-05-19 | 日置電機株式会社 | Property measurement method for solar panel, and device therefor |
| CN106452361A (en) * | 2016-11-06 | 2017-02-22 | 常州天合光能有限公司 | Testing device for double-surface solar battery and testing method of testing device |
| CN210692487U (en) * | 2019-10-23 | 2020-06-05 | 天合光能股份有限公司 | Solar cell voltage distribution measuring device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118151030A (en) * | 2024-05-10 | 2024-06-07 | 黑龙江瑞兴科技股份有限公司 | Battery monitoring method and system for railway backup power supply |
| CN118151030B (en) * | 2024-05-10 | 2024-07-26 | 黑龙江瑞兴科技股份有限公司 | Battery monitoring method and system for railway backup power supply |
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