CN112350665A - Cell piece for photovoltaic cell test and power test method of photovoltaic cell assembly - Google Patents

Cell piece for photovoltaic cell test and power test method of photovoltaic cell assembly Download PDF

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Publication number
CN112350665A
CN112350665A CN202011078455.7A CN202011078455A CN112350665A CN 112350665 A CN112350665 A CN 112350665A CN 202011078455 A CN202011078455 A CN 202011078455A CN 112350665 A CN112350665 A CN 112350665A
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CN
China
Prior art keywords
cell
photovoltaic cell
testing
test
photovoltaic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011078455.7A
Other languages
Chinese (zh)
Inventor
陈志军
刘莹
吴萌萌
李英叶
吴翠姑
李姗姗
尚琪
田思
祁兆溪
杨雯
刘亚静
张丽娜
周艳双
王钰蕾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Phoenix Valley Zero Carbon Development Research Institute
Yingli Energy China Co Ltd
Original Assignee
Hebei Phoenix Valley Zero Carbon Development Research Institute
Yingli Energy China Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hebei Phoenix Valley Zero Carbon Development Research Institute, Yingli Energy China Co Ltd filed Critical Hebei Phoenix Valley Zero Carbon Development Research Institute
Priority to CN202011078455.7A priority Critical patent/CN112350665A/en
Publication of CN112350665A publication Critical patent/CN112350665A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H02S50/10Testing of PV devices, e.g. of PV modules or single PV cells
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H02S50/10Testing of PV devices, e.g. of PV modules or single PV cells
    • H02S50/15Testing of PV devices, e.g. of PV modules or single PV cells using optical means, e.g. using electroluminescence
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The invention provides a cell for testing a photovoltaic cell and a power testing method of a photovoltaic cell module, belonging to the technical field of photovoltaic cells and comprising a cell body and leads, wherein the four leads are electrically connected with the cell body; the plurality of leads are grouped pairwise, and one group of leads is used for being connected with the current anode and the current cathode; and the group of leads are used for being connected with the voltage anode and the voltage cathode. The cell for testing the photovoltaic cell, provided by the invention, is used for manufacturing the monolithic cell body, and the four leads for connecting current and voltage are arranged on the cell body, so that the cell for testing the photovoltaic cell is used for testing in advance, only the monolithic cell body with a smaller volume is wasted after the test fails, and the material of the monolithic cell body is far smaller than that required by a photovoltaic cell component, so that the waste of the whole photovoltaic cell component is avoided; and meanwhile, four leads are arranged to respectively test the voltage and the current, so that the current and the voltage are independent and do not influence each other, and the accuracy of a test result is improved.

Description

Cell piece for photovoltaic cell test and power test method of photovoltaic cell assembly
Technical Field
The invention belongs to the technical field of photovoltaic cells, and particularly relates to a cell for testing a photovoltaic cell.
Background
At present, each photovoltaic cell module product is developed by performing performance verification through various tests, and the product can be certified and sold by some foreign or domestic standard parties. In the process of product development, test and verification, a large number of photovoltaic cell module samples are needed to be tested, and if the test fails, the photovoltaic cell module samples need to be manufactured again to be tested again, so that a large amount of waste of resources is caused, and the current and voltage data are respectively tested, so that the condition of inaccurate test results is easily caused.
Disclosure of Invention
The invention aims to provide a cell for testing a photovoltaic cell and a power testing method of a photovoltaic cell module, and aims to solve the technical problems that resource waste is easily caused and testing is inaccurate when the photovoltaic cell module is tested in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the cell for the photovoltaic cell test comprises:
a cell body;
at least four leads which are electrically connected with the battery piece body; the leads are grouped pairwise, and one group of leads is used for being connected with the current anode and the current cathode; and the group of leads are used for being connected with the voltage anode and the voltage cathode.
As another embodiment of the present application, the number of the leads is four, and two leads in the same group are respectively located at two corresponding sides of the battery piece body.
The cell for testing the photovoltaic cell provided by the invention has the beneficial effects that: compared with the prior art, the cell for testing the photovoltaic cell is characterized in that a single cell body is manufactured, and four leads for connecting current and voltage are arranged on the cell body, so that the cell for testing the photovoltaic cell is used for testing in advance, only a single cell body with a small volume is wasted after testing failure, and the material of the single cell body is far smaller than that required by a photovoltaic cell assembly, so that the waste of the whole photovoltaic cell assembly is avoided, and the waste of resources is reduced; and meanwhile, four leads are arranged to respectively test the voltage and the current, so that the current and the voltage are independent and do not influence each other, and the accuracy of a test result is improved.
Another object of the present invention is to provide a power testing method for a photovoltaic cell module, including any one of the above cell sheets for photovoltaic cell testing, further including:
adjusting the temperature of the working environment where the cell for testing the photovoltaic cell is located to be 20-30 ℃;
marking a testing position on a solar simulation tester, and fixedly mounting the cell for testing the photovoltaic cell at the testing position;
connecting the cell slice for testing the photovoltaic cell with the solar simulation tester through a connector;
starting the solar simulation tester and recording test data;
and taking down the cell piece for the photovoltaic cell test, mounting a photovoltaic cell assembly at the marked test position, testing the photovoltaic cell assembly by using the solar simulation tester, and recording test data.
As another embodiment of the application, before the cell piece for the photovoltaic cell test is fixedly installed at a test position, the cell piece for the photovoltaic cell test is cleaned up.
As another embodiment of the present application, the cell sheet for photovoltaic cell test and the photovoltaic cell module are placed in a working environment until the temperature is consistent with the temperature of the working environment.
As another embodiment of the present application, the working environment temperature is 25 degrees.
As another embodiment of the application, the solar simulation tester is started and then the flash test is carried out, the flash times are multiple, and the time interval between two adjacent flash times is 20-30 seconds.
As another embodiment of the present application, the number of flashes is ten.
As another embodiment of the present application, before the solar simulation tester is started, the solar simulation tester is calibrated by using a standard cell.
The power test method of the photovoltaic cell module comprises the steps that when in test, a cell piece for testing the photovoltaic cell and the photovoltaic cell module are placed in a working environment till the temperature of the cell piece is the same as the temperature of the working environment, then the cell piece for testing the photovoltaic cell is placed at a test position marked by a solar simulation tester, a connector is improved to be connected with the cell piece for testing the photovoltaic cell and the solar simulation tester, the solar simulation tester is started to test the cell piece for testing the photovoltaic cell, data is recorded, whether the cell piece for testing the photovoltaic cell is successful or not is judged according to the data, and if the cell piece for testing the photovoltaic cell is failed, the photovoltaic cell module does not need to be tested; if the test is successful, the photovoltaic cell module is installed at the test position marked by the solar simulation tester for testing, the test environment of the photovoltaic cell module and the test environment of the cell for testing the photovoltaic cell are ensured to be the same, and the test data of the photovoltaic cell module are recorded. By the mode, the cell piece for the multiple photovoltaic cell tests can be tested in advance, then the photovoltaic cell assembly is tested, the cell piece for the photovoltaic cell tests has less material consumption, waste caused by direct testing of the photovoltaic cell assembly can be avoided, and meanwhile, the temperature of the cell piece for the photovoltaic cell tests and the temperature of the photovoltaic cell assembly are the same as the temperature of a working environment, the test positions of the cell piece for the photovoltaic cell tests and the photovoltaic cell assembly are the same, the environmental influence is reduced, and the accuracy of test results is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a cell for photovoltaic cell testing according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
100. a cell piece for testing the photovoltaic cell; 1. a cell body; 11. and (7) leading wires.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, a cell sheet 100 for testing a photovoltaic cell according to the present invention will now be described. A cell 100 for testing a photovoltaic cell comprises a cell body 1 and at least four leads 11, wherein the leads 11 are electrically connected with the cell body 1; the leads 11 form a group in pairs, and one group of leads 11 is used for being connected with the positive electrode and the negative electrode of current; and a group of leads 11 are used for being connected with the positive electrode and the negative electrode of the voltage.
Compared with the prior art, the battery piece 100 for the photovoltaic cell test is provided by the invention, the battery piece body 1 is manufactured, and the four leads 11 for connecting current and voltage are arranged on the battery piece body 1, so that the battery piece 100 for the photovoltaic cell test is used for testing in advance, the single battery piece body 1 with a smaller volume is wasted only when the test fails, and the material of the single battery piece body 1 is far smaller than that required by a photovoltaic cell assembly, so that the waste of the whole photovoltaic cell assembly is avoided, and the waste of resources is reduced; meanwhile, four leads 11 are arranged to respectively test the voltage and the current, so that the current and the voltage are independent and do not influence each other, and the accuracy of a test result is improved.
The single-piece cell piece 100 for testing the photovoltaic cell can be made of raw materials of a photovoltaic cell assembly and can be used for verifying the performance of the raw materials, and the flexibility and the practicability are good.
Referring to fig. 1, as a specific embodiment of the battery piece 100 for testing a photovoltaic cell provided by the present invention, the number of the leads 11 is four, two leads 11 in the same group are respectively located at two corresponding sides of the battery piece body 1, and when in use, four leads 11 in two groups at two opposite sides of the battery piece body 1 are respectively connected to a solar simulation tester for testing current data and voltage data of the battery piece 100 for testing a photovoltaic cell, so as to calculate power. The connection mode is easy to connect and is not easy to make mistakes.
Referring to fig. 1, an embodiment of the present invention further provides a power testing method for a photovoltaic cell module, including the above cell 100 for testing a photovoltaic cell, and further including adjusting a temperature of a working environment where the cell 100 for testing a photovoltaic cell is located to be 20 to 30 ℃; marking a testing position on the solar simulation tester, and fixedly installing the cell 100 for the photovoltaic cell test at the testing position; connecting the cell sheet 100 for photovoltaic cell test with the solar simulation tester through a connector; starting the solar simulation tester and recording test data; and taking down the cell piece 100 for the photovoltaic cell test, installing the photovoltaic cell assembly at the marked test position, testing the photovoltaic cell assembly by using the solar simulation tester, and recording test data.
The medicine bottle discharging method provided by the invention comprises the steps that when in testing, the cell piece 100 for the photovoltaic cell test and the photovoltaic cell assembly are placed in a working environment till the temperature of the cell piece is the same as the temperature of the working environment, then the cell piece 100 for the photovoltaic cell test is placed at a testing position marked by a solar simulation tester, a connector is improved to connect the cell piece 100 for the photovoltaic cell test and the solar simulation tester, the solar simulation tester is started to test the cell piece 100 for the photovoltaic cell test, data is recorded, whether the cell piece 100 for the photovoltaic cell test succeeds or not is judged according to the data, and if the cell piece 100 for the photovoltaic cell test fails, the photovoltaic cell assembly does not need to be tested; if the test is successful, the photovoltaic cell module is installed at the test position marked by the solar simulation tester for testing, so that the test environment of the photovoltaic cell module is ensured to be the same as that of the cell piece 100 for testing the photovoltaic cell, and the test data of the photovoltaic cell module is recorded. By the mode, the cell piece 100 for various photovoltaic cell tests can be tested in advance, then the photovoltaic cell assembly is tested, the consumed materials of the cell piece 100 for the photovoltaic cell tests are less, waste caused by direct testing of the photovoltaic cell assembly can be avoided, meanwhile, the temperature of the cell piece 100 for the photovoltaic cell test and the temperature of the photovoltaic cell assembly are the same as the temperature of a working environment, the testing position of the cell piece 100 for the photovoltaic cell test and the testing position of the photovoltaic cell assembly are the same, the environmental influence is reduced, and the accuracy of the testing result is improved.
Referring to fig. 1, as a specific embodiment of the method for testing the power of the photovoltaic cell module according to the present invention, before the cell sheet 100 for testing the photovoltaic cell is fixedly mounted at the testing position, the cell sheet 100 for testing the photovoltaic cell is cleaned, that is, the cell sheet 100 for testing the photovoltaic cell is wiped to remove dust, impurities, and the like on the cell sheet 100 for testing the photovoltaic cell, so as to ensure that the performance of the cell sheet 100 for testing the photovoltaic cell is not affected by the dust and the impurities, and further improve the accuracy of the testing result. The cell piece 100 for the photovoltaic cell test can be wiped by using alcohol, so that impurities such as dust can be removed, and the cooling speed of the cell piece 100 for the photovoltaic cell test can be increased by means of volatilization of the alcohol.
Referring to fig. 1, as a specific embodiment of the power testing method of the photovoltaic cell module according to the present invention, the cell sheet 100 for photovoltaic cell testing and the photovoltaic cell module are placed in a working environment until the temperature of the cell sheet is consistent with the temperature of the working environment, the temperature of the working environment is set to 20 to 30 degrees before testing, and in order to reduce environmental factors for the cell sheet 100 for photovoltaic cell testing and the photovoltaic cell module, the cell sheet 100 for photovoltaic cell testing and the photovoltaic cell module are placed in a working environment of 20 to 30 degrees for a period of time until the temperature of the cell sheet 100 for photovoltaic cell testing and the photovoltaic cell module becomes 20 to 30 degrees.
Referring to fig. 1, as a specific embodiment of the power testing method for a photovoltaic cell module provided by the present invention, the operating environment temperature is 25 degrees, the change of the photovoltaic module temperature may cause some changes of parameter measurement, the temperature change mainly affects the Voc of the photovoltaic module, and the Voc of the photovoltaic module is reduced under a high temperature condition. And the working environment temperature is set to be 25 ℃, so that the influence of the temperature on the performance of the photovoltaic component is reduced or even eliminated. Before testing, the photovoltaic module is arranged in a working environment of 25 ℃ for several hours until the temperature of the cell piece 100 for testing the photovoltaic cell and the temperature of the photovoltaic cell module are consistent with the temperature of the working environment.
Referring to fig. 1, as a specific embodiment of the power testing method for a photovoltaic cell module according to the present invention, a flash test is performed after the solar simulation tester is started, the number of flashes is multiple, the time interval between two adjacent flashes is 20 to 30 seconds, and the flash is performed once every 20 to 30 seconds, so that the two adjacent flash tests do not affect each other, and the test result and data are ensured to be more accurate. And the test data can be more clearly and accurately obtained by carrying out a plurality of times of flash tests.
Referring to fig. 1, as a specific embodiment of the power testing method for a photovoltaic cell module provided by the present invention, the number of times of flashing is ten, which can fully record test data and avoid the influence of large errors on the test result. When using test data, data with large deviations can be filtered out.
Referring to fig. 1, as a specific embodiment of the power testing method for a photovoltaic cell module according to the present invention, before the solar analog tester is started, a standard cell is used to calibrate the solar analog tester, so as to determine the accuracy of the solar analog tester, eliminate the error of the solar analog tester itself, and improve the power testing accuracy of the photovoltaic cell module.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. Cell piece is used in test of photovoltaic cell, its characterized in that includes:
a cell body;
at least four leads which are electrically connected with the battery piece body; the leads are grouped pairwise, and one group of leads is used for being connected with the current anode and the current cathode; and the group of leads are used for being connected with the voltage anode and the voltage cathode.
2. The cell for testing photovoltaic cells according to claim 1, wherein the number of the leads is four, and two leads of the same group are respectively located on two corresponding sides of the cell body.
3. The method for testing the power of the photovoltaic cell module, which comprises the cell for testing the photovoltaic cell as set forth in claim 1 or 2, further comprising:
adjusting the temperature of the working environment where the cell for testing the photovoltaic cell is located to be 20-30 ℃;
marking a testing position on a solar simulation tester, and fixedly mounting the cell for testing the photovoltaic cell at the testing position;
connecting the cell slice for testing the photovoltaic cell with the solar simulation tester through a connector;
starting the solar simulation tester and recording test data;
and taking down the cell piece for the photovoltaic cell test, mounting a photovoltaic cell assembly at the marked test position, testing the photovoltaic cell assembly by using the solar simulation tester, and recording test data.
4. The method according to claim 3, wherein the test cell is cleaned before the test cell is fixedly mounted at the test position.
5. The method for power testing of a photovoltaic cell assembly according to claim 3, wherein the cell sheet for photovoltaic cell testing and the photovoltaic cell assembly are placed in an operating environment until the temperature is consistent with the temperature of the operating environment.
6. The method for power testing of a photovoltaic cell assembly according to claim 3, wherein the operating environment temperature is 25 degrees.
7. The method for testing the power of the photovoltaic cell module according to claim 3, wherein the solar simulation tester is started and then flash testing is performed, the number of flash is multiple, and the time interval between two adjacent flash is 20-30 seconds.
8. The method for power testing of a photovoltaic cell assembly of claim 7, wherein said number of flashes is ten.
9. The method according to claim 3, wherein the solar simulation tester is calibrated using a standard cell before starting the solar simulation tester.
CN202011078455.7A 2020-10-10 2020-10-10 Cell piece for photovoltaic cell test and power test method of photovoltaic cell assembly Pending CN112350665A (en)

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Application Number Priority Date Filing Date Title
CN202011078455.7A CN112350665A (en) 2020-10-10 2020-10-10 Cell piece for photovoltaic cell test and power test method of photovoltaic cell assembly

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CN202011078455.7A CN112350665A (en) 2020-10-10 2020-10-10 Cell piece for photovoltaic cell test and power test method of photovoltaic cell assembly

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CN112350665A true CN112350665A (en) 2021-02-09

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102288886A (en) * 2011-04-26 2011-12-21 江苏正信新能源科技集团有限公司 Device for rapid detection of electrical performance of cell
CN102621475A (en) * 2012-04-17 2012-08-01 保定维特瑞光电能源科技有限公司 Solar photovoltaic cell detection device
CN106374834A (en) * 2016-08-22 2017-02-01 北京东方计量测试研究所 Voltage-ampere characteristic measurement circuit and method of solar cell
CN107748303A (en) * 2017-09-15 2018-03-02 西藏自治区能源研究示范中心 A kind of portable photovoltaic device electric performance test system
CN207782755U (en) * 2018-02-10 2018-08-28 泰州隆基乐叶光伏科技有限公司 A kind of MBB solar cell tests platform

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102288886A (en) * 2011-04-26 2011-12-21 江苏正信新能源科技集团有限公司 Device for rapid detection of electrical performance of cell
CN102621475A (en) * 2012-04-17 2012-08-01 保定维特瑞光电能源科技有限公司 Solar photovoltaic cell detection device
CN106374834A (en) * 2016-08-22 2017-02-01 北京东方计量测试研究所 Voltage-ampere characteristic measurement circuit and method of solar cell
CN107748303A (en) * 2017-09-15 2018-03-02 西藏自治区能源研究示范中心 A kind of portable photovoltaic device electric performance test system
CN207782755U (en) * 2018-02-10 2018-08-28 泰州隆基乐叶光伏科技有限公司 A kind of MBB solar cell tests platform

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