Automatic test method, device and system for solar cell module

Abstract

The embodiment of the invention provides an automatic test method, device and system for a solar cell module. The method comprises the steps that the solar cell module is automatically placed on a test board; performing a flash IV current and voltage test on the solar cell module to generate an IV curve; if the IV curve is abnormal, circulating detection is carried out, the position of the solar cell with the abnormal curve is marked, and EL electroluminescence testing is carried out on the solar cell module; if the IV curve is normal, an EL electroluminescent test is directly carried out on the solar cell module; evaluating equipment parameters of the solar cell module according to the IV curve, obtaining defect characteristics of the solar cell module based on an EL test result, obtaining a test result, and filing the test result; the solar cell module is automatically tested, the test result is automatically generated, and meanwhile the test efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery module testing, and in particular to an automated testing method, device and system for solar cell modules. Background Art

[0002] Solar cell modules, also called solar panels, are the core and most valuable part of solar power generation systems. They convert solar energy into electrical energy, or store it in batteries, or drive loads. Solar energy is a renewable energy source, which refers to the thermal radiation energy of the sun, and is mainly manifested in the so-called sunlight. At present, solar cell modules absorb, transform and utilize light energy. However, solar cell modules need to be tested for IV and EL after production to ensure the quality of solar cell modules.

[0003] At present, the solar cell module test system manually places the welded battery string on the test platform, turns on multiple lights to provide light to the solar panel, and uses a multimeter to perform voltage and current tests. However, manual testing leads to low test efficiency and cannot automatically generate battery test results. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a method, device and system for automated testing of solar cell modules, so as to solve the problem that the existing solar cell modules are tested manually, resulting in low test efficiency and inability to automatically generate battery test results.

[0005] In a first aspect, an embodiment of the present application provides a method for automated testing of a solar cell assembly, comprising:

[0006] Automatically place solar cell modules on the test bench;

[0007] Conduct flash IV current and voltage test on solar cell modules to generate IV curves;

[0008] If there is an abnormality in the IV curve, the test is repeated, the location of the solar cell with the abnormal curve is marked, and then the solar cell module is tested for EL electroluminescence;

[0009] If the IV curve is normal, then directly conduct EL electroluminescence test on the solar cell module;

[0010] Evaluate the equipment parameters of solar cell modules based on IV curves, obtain defect characteristics of solar cell modules based on EL test results, obtain test results and archive them.

[0011] In the above implementation process, the solar cell module is automatically placed on the test bench; a flash IV current and voltage test is performed on the solar cell module to generate an IV curve; if there is an abnormality in the IV curve, a cyclic detection is performed, the position of the solar cell with the abnormal curve is marked, and then the solar cell module is subjected to an EL electroluminescence test; if the IV curve is normal, the solar cell module is directly subjected to an EL electroluminescence test; the device parameters of the solar cell module are evaluated according to the IV curve, the defect characteristics of the solar cell module are obtained based on the results of the EL test, and the test results are obtained and archived; the solar cell module is automatically tested, the test results are automatically generated, and the test efficiency is improved at the same time.

[0012] Further, the automated process of placing the solar cell assembly on a test bench comprises:

[0013] Control the automatic transport device to place the solar panels on the loading and unloading assembly;

[0014] Detecting that the solar cell module is placed at the loading and unloading assembly, controlling the loading and unloading assembly to open the tray at the set position;

[0015] Automatically scan the solar cell modules on the tray and read the module numbers;

[0016] After performing visual positioning compensation on the solar cell module, the intelligent robotic arm is controlled to grab the module and place it on the test bench.

[0017] In the above implementation process, the automatic control system fully controls the automatic transport device, visual positioning device and intelligent robotic arm to operate the solar cell module, and the whole process is automated to improve the test efficiency.

[0018] Furthermore, it also includes:

[0019] Control the intelligent robotic arm to put the solar cell modules back to their original positions on the pallet and test the solar cell modules on the next pallet.

[0020] In the above implementation process, the solar cell modules are tested automatically in sequence.

[0021] Further, the testing of the solar cell components of the next tray includes:

[0022] Control the loading and unloading components to raise the next pallet to the set position and open the pallet.

[0023] In the above implementation process, each time the pallet to be tested is raised to a set position, it is convenient for the intelligent robot arm to grab it for subsequent testing.

[0024] Further, the flash IV current and voltage test is performed on the solar cell assembly to generate an IV curve, including:

[0025] The solar cell module is subjected to a flash IV current and voltage test, the current value is measured under different load voltage values, and the data set of the measured voltage value and current value is plotted to form an IV curve.

[0026] In the above implementation process, the IV curve of the solar cell module is tested to evaluate the device parameters such as the performance and working status of the module.

[0027] Furthermore, the device parameters of the solar cell module are evaluated according to the IV curve, and the defect characteristics of the solar cell module are obtained based on the results of the EL test, including:

[0028] Analyze IV curves to obtain the open circuit voltage, short circuit current and maximum power point of solar cell modules to evaluate the performance and working status of solar cell modules;

[0029] The EL image of the battery EL test is used to determine whether the solar cell module has defect features, wherein the defect features include hidden cracks and fingerprint defects.

[0030] In the above implementation process, the defects of the solar cell module are automatically evaluated to obtain the evaluation results.

[0031] Furthermore, it also includes:

[0032] Record the module number of the abnormal solar cell module;

[0033] Shorten the detection length of abnormal solar cell modules, screen out abnormal solar cells and mark them;

[0034] The locations of abnormal solar cells are screened out and sent to the automation control system in combination with the component numbers.

[0035] In the above implementation process, the positions of abnormal solar cells are screened and recorded, so as to facilitate processing of the abnormal solar cells.

[0036] Furthermore, after the solar cell assembly is automatically placed on the test bench, the method further comprises:

[0037] Visual positioning of solar cell modules.

[0038] In the above implementation process, the solar cell assembly is visually positioned to improve the subsequent test accuracy.

[0039] In a second aspect, an embodiment of the present application provides an automated testing device for a solar cell assembly, comprising:

[0040] Automatic placement module, used to automatically place solar cell modules on the test bench;

[0041] IV test module, used to perform flash IV current and voltage test on solar cell modules and generate IV curve;

[0042] EL test module, used to perform cyclic detection if there is an abnormality in the IV curve, mark the position of the solar cell with abnormal curve, and then perform EL electroluminescence test on the solar cell module; if the IV curve is normal, directly perform EL electroluminescence test on the solar cell module;

[0043] The result evaluation module is used to evaluate the equipment parameters of the solar cell module according to the IV curve, obtain the defect characteristics of the solar cell module based on the results of the EL test, obtain the test results and archive them.

[0044] In a third aspect, an embodiment of the present application provides an automated testing system for solar cell modules, comprising: an automated testing device for solar cell modules as described above, an automated control system, an intelligent robotic arm, an automatic transport device, a visual positioning device, a loading and unloading assembly, and a test bench, wherein the automated control system connects the automated testing device, the intelligent robotic arm, the automatic transport device, the loading and unloading assembly, and the visual positioning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 A schematic diagram of a process flow of an automated testing method for a solar cell assembly provided in an embodiment of the present application;

[0047] Figure 2 It is a structural schematic diagram of an automatic testing device for a solar cell assembly provided in an embodiment of the present application;

[0048] Figure 3 It is a structural schematic diagram of a solar cell module automatic testing system provided in an embodiment of the present application;

[0049] Figure 4 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0051] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0052] Please see Figure 1 , Figure 1 A schematic diagram of a flow chart of an automated testing method for a solar cell module provided in an embodiment of the present application. The automated testing method for a solar cell module comprises:

[0053] 100. Automatically place the solar cell modules on the test bench.

[0054] Specifically, the automatic transport device is controlled to place the solar panels on the loading and unloading assembly; when it is detected that the solar cell panels are placed at the loading and unloading assembly, the loading and unloading assembly is controlled to open the pallet at the set position; the solar cell panels on the pallet are automatically scanned to read the component numbers; after visual positioning compensation for the solar cell panels, the intelligent robotic arm is controlled to grab the components and place them on the test bench.

[0055] Therefore, the automatic control system controls the automatic transport device, visual positioning device and intelligent robotic arm to operate the solar cell modules, automating the entire process and improving the test efficiency.

[0056] 200. Perform a flash IV current and voltage test on the solar cell module to generate an IV curve.

[0057] Optionally, a flash IV current and voltage test is performed on the solar cell assembly, the current value is measured under different load voltage values, and the data set of the measured voltage value and current value is plotted to form an IV curve.

[0058] It should be noted that the flash IV test simulates sunlight exposure and uses a flash lamp to emit high-intensity light in a short period of time to excite electron-hole pairs in photovoltaic materials, thereby forming a photocurrent. By measuring the change in this current, the photoelectric conversion efficiency and other related performance parameters of the photovoltaic module can be evaluated.

[0059] Specifically, a light source simulator or flashlight is used to illuminate the solar cell module quickly and with high intensity to simulate the effect of sunlight. The intensity and spectral distribution of the light source should be as close as possible to actual sunlight to ensure the reliability of the test results. While the light source is irradiating, the IV tester will measure the current and voltage output of the solar cell module in real time. These data points will be recorded for subsequent drawing of the IV curve.

[0060] It should be noted that in order to ensure the integrity and accuracy of the data, the voltage value, current value and corresponding test conditions (such as light intensity, temperature, etc.) of each test point should be recorded in detail.

[0061] In addition, the collected current and voltage data are sorted from large to small according to the voltage value, and the corresponding current value is calculated to obtain a series of voltage-current corresponding data points. Use drawing software (such as Excel, Python's Matplotlib library, etc.) to plot the voltage-current data points on the coordinate system and connect them into a smooth curve, namely the IV curve. By observing the IV curve, key parameters of solar cell modules can be extracted, such as open circuit voltage (Voc), short circuit current (Isc), maximum power point (MPP) and fill factor (FF), which are crucial for evaluating the performance and efficiency of the module.

[0062] Performance analysis: Based on the shape of the IV curve and the values ​​of key parameters, the performance of the solar cell module can be analyzed. For example, higher open circuit voltage and short circuit current values ​​usually mean better output performance; while a higher fill factor indicates that the module has a higher efficiency near the maximum power point.

[0063] Thus, the IV curve of the solar cell module is obtained through testing, so as to evaluate the device parameters such as the performance and working status of the module.

[0064] 300. If there is an abnormality in the IV curve, a cyclic detection is performed, the position of the solar cell with the abnormal curve is marked, and then the solar cell module is subjected to an EL electroluminescence test.

[0065] Optionally, the abnormal solar cell panels can be screened out and marked by shortening the detection length of the abnormal solar cell modules.

[0066] It should be noted that EL electroluminescence testing is a non-destructive testing method that uses the weak light emitted by a solar cell when it is powered on to detect defects and damage inside the cell. When a solar cell is stimulated by a forward voltage, the defective and damaged areas inside it will emit brighter or darker light than normal areas, so problems can be identified by observing the distribution of light.

[0067] Specifically, connect the solar cell module to the EL tester and set appropriate test parameters (such as voltage, current, etc.). Then, observe the light emitted by the module in a dark room or light-shielding device. By comparing the light intensity distribution in normal and abnormal areas, the defects and damage inside the battery can be identified. Among them, based on the results of the EL test, the cause of the abnormal IV curve can be further confirmed. For example, if the EL image shows obvious dark spots or bright spots on a certain cell, there may be problems such as cracks, open circuits or short circuits inside the cell.

[0068] Optionally, the solar cell that needs to be repaired or replaced can be determined based on the results of the EL test and the abnormal performance of the IV curve, and then the repair or replacement work can be carried out accurately according to the marked position. After the repair or replacement is completed, the IV test and EL test need to be carried out again to ensure that the performance of the component has returned to normal. At the same time, the quality of the repair or replacement process needs to be monitored to ensure the accuracy and reliability of the work.

[0069] 400. If the IV curve is normal, directly perform EL electroluminescence test on the solar cell module.

[0070] 500. Evaluate the equipment parameters of the solar cell module according to the IV curve, obtain the defect characteristics of the solar cell module based on the results of the EL test, obtain the test results and archive them.

[0071] Optionally, analyze the IV curve to obtain the open circuit voltage, short circuit current and maximum power point of the solar cell module to evaluate the performance and working status of the solar cell module; determine whether the solar cell module has defect characteristics based on the EL image of the battery EL test, where the defect characteristics include hidden cracks and fingerprint defects.

[0072] As described above, the embodiment of the present application automatically places the solar cell module on the test bench; performs a flash IV current and voltage test on the solar cell module to generate an IV curve; if there is an abnormality in the IV curve, a cyclic detection is performed, the position of the solar cell with the abnormal curve is marked, and then an EL electroluminescence test is performed on the solar cell module; if the IV curve is normal, an EL electroluminescence test is directly performed on the solar cell module; the device parameters of the solar cell module are evaluated according to the IV curve, the defect characteristics of the solar cell module are obtained based on the results of the EL test, and the test results are obtained and archived; the solar cell module is automatically tested, the test results are automatically generated, and the test efficiency is improved at the same time.

[0073] On the basis of the above-mentioned embodiment, the solar cell module automatic testing method of the embodiment of the present application can also be embodied as follows:

[0074] Control the intelligent robotic arm to put the solar cell modules back to their original positions on the pallet and test the solar cell modules on the next pallet.

[0075] Control the loading and unloading components to raise the next pallet to the set position and open the pallet.

[0076] It can be understood that after opening the next tray, the solar cell modules on the tray continue to be automatically scanned, the module numbers are read, and after visual positioning compensation of the solar cell modules, the intelligent robotic arm is controlled to grab the modules and place them on the test bench for testing the next solar cell module.

[0077] Thus, each time the tray that needs to be tested is raised to the set position, it is convenient for the intelligent robot arm to grab it for subsequent testing; the solar cell modules are tested automatically in sequence.

[0078] On the basis of the above-mentioned embodiment, the solar cell module automatic testing method of the embodiment of the present application can also be embodied as follows:

[0079] Record the module number of the abnormal solar cell module.

[0080] Shorten the detection length of abnormal solar cell modules, screen out abnormal solar cells and mark them.

[0081] The locations of abnormal solar cells are screened out and sent to the automation control system in combination with the component numbers.

[0082] Thus, the positions of abnormal solar cells are screened and recorded, which facilitates processing of the abnormal solar cells.

[0083] On the basis of the above-mentioned embodiment, the solar cell assembly automatic testing method of the embodiment of the present application can also be embodied as follows: after the solar cell assembly is automatically placed on the test bench, the method further includes:

[0084] Visual positioning of solar cell modules.

[0085] Thus, the solar cell module is visually positioned to ensure that the solar cell module is in the best position for testing, thereby improving the accuracy of subsequent testing.

[0086] The above steps are not to be performed in a strict order as described in the numbers, but should be understood as an overall solution.

[0087] In the second aspect, based on the above embodiments, Figure 2 This is a schematic diagram of the structure of a solar cell module automatic testing device provided in an embodiment of the present application. Figure 2The solar cell assembly automatic testing device provided in this embodiment specifically includes: an automatic placement module 201, an IV testing module 202, an EL testing module 203 and a result evaluation module 204.

[0088] Among them, the automatic placement module 201 is used to automatically place the solar cell module on the test bench; the IV test module 202 is used to perform a flash IV current and voltage test on the solar cell module to generate an IV curve; the EL test module 203 is used to perform a cyclic detection if there is an abnormality in the IV curve, mark the position of the solar cell with the abnormal curve, and then perform an EL electroluminescence test on the solar cell module; if the IV curve is normal, the EL electroluminescence test is directly performed on the solar cell module; the result evaluation module 204 is used to evaluate the equipment parameters of the solar cell module according to the IV curve, obtain the defect characteristics of the solar cell module based on the results of the EL test, obtain the test results and archive them.

[0089] As described above, the embodiment of the present application automatically places the solar cell module on the test bench; performs a flash IV current and voltage test on the solar cell module to generate an IV curve; if there is an abnormality in the IV curve, a cyclic detection is performed, the position of the solar cell with the abnormal curve is marked, and then an EL electroluminescence test is performed on the solar cell module; if the IV curve is normal, an EL electroluminescence test is directly performed on the solar cell module; the device parameters of the solar cell module are evaluated according to the IV curve, the defect characteristics of the solar cell module are obtained based on the results of the EL test, and the test results are obtained and archived; the solar cell module is automatically tested, the test results are automatically generated, and the test efficiency is improved at the same time.

[0090] The solar cell module automated testing device provided in the embodiment of the present application can be used to execute the solar cell module automated testing method provided in the above embodiment, and has corresponding functions and beneficial effects.

[0091] In the third aspect, based on the above embodiments, Figure 3 A schematic diagram of the structure of a solar cell module automated testing system provided in an embodiment of the present application. The solar cell module automated testing system provided in this embodiment specifically includes: the above-mentioned solar cell module automated testing device, automated control system, intelligent mechanical arm 302, automatic transportation device, visual positioning device, loading and unloading assembly 301 and test bench 303, wherein the automated control system connects the automated testing device, the intelligent mechanical arm 302, the automatic transportation device, the loading and unloading assembly 301 and the visual positioning device.

[0092] Among them, the automated control system controls the automatic transport device to place the solar cell components on the loading and unloading component 301; upon detecting that the solar cell components are placed on the loading and unloading component 301, the automated control system controls the loading and unloading component 301 to open the pallet at the set position; the automated control system controls the visual positioning device to automatically scan the solar cell components on the pallet and read the component numbers; after performing visual positioning compensation on the solar cell components, the intelligent robotic arm 302 is controlled to grab the components and place them on the test bench 303.

[0093] In some embodiments, a software system 304 is further included, and the software system 304 is used to generate an IV curve from the current and voltage test data of the solar cell assembly.

[0094] In a fourth aspect, an embodiment of the present application further provides an electronic device, which can integrate the solar cell module automatic testing device provided in the embodiment of the present application. Figure 4 Schematic diagram of the structure of an electronic device provided by an embodiment of the present application. Figure 4 The electronic device includes: an input device 73, an output device 74, a memory 72 and one or more processors 71; the memory 72 is used to store one or more programs; when the one or more programs are executed by the one or more processors 71, the one or more processors 71 implement the solar cell module automatic testing method provided in the above embodiment. The input device 73, the output device 74, the memory 72 and the processor 71 can be connected by a bus or other means. Figure 4 The example of connecting through bus is taken in the following.

[0095] The processor 71 executes various functional applications and data processing of the device by running the software programs, instructions and modules stored in the memory 72, that is, realizes the above-mentioned automatic testing method of solar cell modules.

[0096] The electronic device provided above can be used to execute the solar cell module automated testing method provided in the above embodiment, and has corresponding functions and beneficial effects.

[0097] In a fifth aspect, an embodiment of the present application further provides a computer-readable storage medium, the computer-readable storage medium including a stored computer program; wherein, when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute the solar cell module automated testing method as described above, and can achieve the same beneficial effects.

[0098] Of course, the computer executable instructions of a storage medium containing computer executable instructions provided in an embodiment of the present application are not limited to the above-mentioned automated testing method for solar cell modules, but can also execute related operations in the automated testing method for solar cell modules provided in any embodiment of the present application.

[0099] The computer program or instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instructions may be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it may also be an optical medium, such as a digital video disk; it may also be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both volatile and non-volatile types of storage media.

[0100] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the module, a program segment or a part of a code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0101] In addition, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0102] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for enabling an electronic device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0103] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0104] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0105] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A solar cell module automated testing method, characterized in that: include: Automatically place solar cell modules on the test bench; Conduct flash IV current and voltage test on solar cell modules to generate IV curves; If there is an abnormality in the IV curve, the test is repeated, the location of the solar cell with the abnormal curve is marked, and then the solar cell module is tested for EL electroluminescence; If the IV curve is normal, then directly conduct EL electroluminescence test on the solar cell module; Evaluate the equipment parameters of solar cell modules based on IV curves, obtain defect characteristics of solar cell modules based on EL test results, obtain test results and archive them.

2. The automated testing method for solar cell components according to claim 1, characterized in that: The automation places the solar cell module on the test bench, including: Control the automatic transport device to place the solar panels on the loading and unloading assembly; Detecting that the solar cell module is placed at the loading and unloading assembly, controlling the loading and unloading assembly to open the tray at the set position; Automatically scan the solar cell modules on the tray and read the module numbers; After performing visual positioning compensation on the solar cell module, the intelligent robotic arm is controlled to grab the module and place it on the test bench.

3. The automated testing method for solar cell components according to claim 2, characterized in that: Also includes: Control the intelligent robotic arm to put the solar cell modules back to their original positions on the pallet and test the solar cell modules on the next pallet.

4. The automated testing method for solar cell components according to claim 3, characterized in that: The test of the solar cell modules of the next tray comprises: Control the loading and unloading components to raise the next pallet to the set position and open the pallet.

5. The automated testing method for solar cell components according to claim 1, characterized in that: The flash IV current and voltage test of the solar cell assembly is performed to generate an IV curve, including: The solar cell module is subjected to a flash IV current and voltage test, the current value is measured under different load voltage values, and the data set of the measured voltage value and current value is plotted to form an IV curve.

6. The automated testing method for solar cell components according to claim 1, characterized in that: The method of evaluating the device parameters of the solar cell module according to the IV curve and obtaining the defect characteristics of the solar cell module based on the results of the EL test includes: Analyze IV curves to obtain the open circuit voltage, short circuit current and maximum power point of solar cell modules to evaluate the performance and working status of solar cell modules; The EL image of the battery EL test is used to determine whether the solar cell module has defect features, wherein the defect features include hidden cracks and fingerprint defects.

7. The automated testing method for solar cell components according to claim 1, characterized in that: Also includes: Record the module number of the abnormal solar cell module; Shorten the detection length of abnormal solar cell modules, screen out abnormal solar cells and mark them; The locations of abnormal solar cells are screened out and sent to the automation control system in combination with the component numbers.

8. The solar cell module automated testing method according to claim 1, characterized in that: After the solar cell module is placed on the test bench, the automation further comprises: Visual positioning of solar cell modules.

9. An automated testing device for solar cell modules, characterized in that: include: Automatic placement module, used to automatically place solar cell modules on the test bench; IV test module, used to perform flash IV current and voltage test on solar cell modules and generate IV curve; EL test module, used to perform cyclic detection if there is an abnormality in the IV curve, mark the position of the solar cell with abnormal curve, and then perform EL electroluminescence test on the solar cell module; if the IV curve is normal, directly perform EL electroluminescence test on the solar cell module; The result evaluation module is used to evaluate the equipment parameters of the solar cell module according to the IV curve, obtain the defect characteristics of the solar cell module based on the results of the EL test, obtain the test results and archive them.

10. A solar cell module automated testing system, characterized in that: include: The solar cell module automated testing device, automated control system, intelligent robotic arm, automatic transport device, visual positioning device, loading and unloading assembly and test bench as described in claim 9, wherein the automated control system connects the automated testing device, the intelligent robotic arm, the automatic transport device, the loading and unloading assembly and the visual positioning device.

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