CN115811277A - Photovoltaic module testing method - Google Patents
Photovoltaic module testing method Download PDFInfo
- Publication number
- CN115811277A CN115811277A CN202211599370.2A CN202211599370A CN115811277A CN 115811277 A CN115811277 A CN 115811277A CN 202211599370 A CN202211599370 A CN 202211599370A CN 115811277 A CN115811277 A CN 115811277A
- Authority
- CN
- China
- Prior art keywords
- test
- photovoltaic module
- testing
- result
- load
- 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
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The application relates to a photovoltaic module testing method which is used for testing the trampling resistance of a photovoltaic module. The photovoltaic module testing method comprises the following steps: carrying out defect inspection test on the photovoltaic module, and recording as an initial result; mounting the photovoltaic module on the color steel tile; applying a preset load to the photovoltaic assembly by using a testing device, and maintaining for a preset time; carrying out defect inspection test on the loaded photovoltaic module, and recording the defect inspection test as a load result; and comparing and analyzing the initial result and the load result. In this application, stand on the photovoltaic module surface to the simulation operator through testing arrangement, through contrastive analysis initial result and load result, can judge whether the structure behind the photovoltaic module load satisfies photovoltaic module's normal work demand, and then realize the judgement to photovoltaic module's anti performance of trampling to be convenient for follow-up adjustment to photovoltaic module's structure, material, processing technology isoparametric.
Description
Technical Field
The application relates to the technical field of photovoltaic modules, in particular to a photovoltaic module testing method.
Background
Photovoltaic mechanism includes various steel tile subassembly and installs in the photovoltaic module of various steel tile subassembly, and at the in-process of installation photovoltaic mechanism, the operator need step on photovoltaic module to in-process in order to operate. In the trampling process, hidden cracking and breaking risks are easy to occur at corners of the photovoltaic modules and suspended positions of the photovoltaic modules after the photovoltaic modules are connected with the color steel tile assemblies.
Therefore, after the photovoltaic module is processed and produced, whether the trample resistance of the photovoltaic module meets the requirement needs to be judged so as to adjust the parameters of the photovoltaic module, such as material, structure, processing technology and the like.
Disclosure of Invention
The application provides a photovoltaic module testing method which can test the stepping resistance of a photovoltaic module installed on a color steel tile.
The application provides a photovoltaic module testing method, which is used for testing the treading resistance of a photovoltaic module installed on a color steel tile, and comprises the following steps:
carrying out defect inspection test on the photovoltaic module, and recording as an initial result;
mounting the photovoltaic module on the color steel tile module;
applying a preset load to the photovoltaic assembly by using the testing device, and maintaining for a preset time;
carrying out defect inspection test on the loaded photovoltaic module, and recording the defect inspection test as a load result;
and comparing and analyzing the initial result and the load structure.
In this application, testing arrangement applys the predetermined load and maintains the time of predetermineeing to photovoltaic module, can simulate the operator and stand on the photovoltaic module surface, photovoltaic module after the load carries out the defect inspection test, contrastive analysis initial result and load result, can judge whether the structure after the photovoltaic module load satisfies photovoltaic module's normal work demand, thereby judge whether the operator stands and can influence photovoltaic module's normal work on the photovoltaic module surface, and then realize the judgement to photovoltaic module's anti-performance of stepping on, so that follow-up structure to photovoltaic module, the material, the adjustment of processing technology isoparametric.
In some embodiments, the photovoltaic module comprises a connecting part and a suspended part, wherein the connecting part is used for contacting with the color steel tile assembly, and the suspended part is used for enclosing a cavity with the color steel tile assembly;
the photovoltaic module is provided with a first test surface, a second test surface and a third test surface, the first test surface is positioned at the edge of the connecting part, the second test surface is positioned at the suspended part, and the third test surface is positioned at the corner of the photovoltaic module;
the method for testing the photovoltaic module comprises the following steps of applying a preset load on the photovoltaic module by using a testing device, and maintaining the preset load for a preset time, wherein the steps comprise:
and applying a preset load to at least one of the first test surface, the second test surface and the third test surface by using the test device, and maintaining for a preset time.
In some embodiments, applying a predetermined load to at least one of the first test surface, the second test surface, and the third test surface with the test device for a predetermined time comprises:
selecting a first test point on the first test surface, the second test surface or the third test surface;
and applying a preset load to the first test point by using the test device, and maintaining the preset time.
In some embodiments, after the step of applying a predetermined load to the first test point by the testing device and maintaining the predetermined time, the step of applying a predetermined load to at least one of the first test surface, the second test surface, and the third test surface by the testing device and maintaining the predetermined time includes:
selecting a second test point on the first test surface or the second test surface or the third test surface, wherein the first test point and the second test point are distributed along the length direction and/or the width direction of the photovoltaic module;
and applying a preset load to the second test point by using the test device, and maintaining the preset time.
In some embodiments, the first test point and the second test point are located on the same one of the first test surface, the second test surface, and the third test surface.
In some embodiments, the first test point and the second test point are located on two of the first test surface, the second test surface, and the third test surface, respectively.
In some embodiments, the photovoltaic module is further provided with a fourth test surface, the fourth test surface being a surface outside the first test surface, the second test surface, the third test surface;
the method comprises the following steps of applying a preset load to the photovoltaic assembly by using a testing device and maintaining the preset time, wherein the steps comprise:
and applying a preset load to the fourth test surface by using the test device, and maintaining for a preset time.
In some embodiments, the testing device comprises a testing piece and a driving component, wherein the testing piece is used for applying a preset load to the photovoltaic component, the driving component is connected with the testing piece, and the driving component can drive the testing piece to move along the length direction, the width direction and the thickness direction of the photovoltaic component;
the method comprises the following steps of applying a preset load to the photovoltaic assembly by using a testing device and maintaining the preset time, wherein the steps comprise:
the driving assembly drives the test piece to move along the length direction and/or the width direction of the photovoltaic assembly, so that the test piece is positioned above the first test point in the thickness direction of the photovoltaic assembly;
the driving assembly drives the test piece to move along the thickness direction of the photovoltaic assembly, the test piece presets a load on the first test point and maintains the preset time;
the driving assembly drives the test piece to move along the length direction and/or the width direction of the photovoltaic assembly, so that the test piece is positioned above the second test point in the thickness direction of the photovoltaic assembly;
the driving assembly drives the testing piece to move along the thickness direction of the photovoltaic assembly, and the testing piece presets a load on the second testing point and maintains the preset time.
In some embodiments, the test piece is provided with an abutting surface, and the area S of the abutting surface satisfies: 50cm 2 ≤S≤400cm 2 ；
The method comprises the following steps of applying a preset load to the photovoltaic assembly by using a testing device and maintaining the preset time, wherein the steps comprise:
the test piece exerts the preset load through the butt face to photovoltaic module.
In some embodiments, the defect inspection test comprises visual inspection;
the method for testing the photovoltaic module for defect inspection and recording the defect inspection test result as a load result comprises the following steps:
checking the appearance of the photovoltaic module, and recording the result as an initial appearance result;
the method comprises the following steps of carrying out defect inspection test on the loaded photovoltaic module, and recording the defect inspection test as a load result:
checking the appearance of the loaded photovoltaic module, and recording the result as an appearance load result;
the step of comparing the analysis initial result with the load result comprises:
and comparing and analyzing the appearance initial result and the appearance load result, and judging the change degree of the appearance of the loaded photovoltaic module.
In some embodiments, the visual inspection includes external defect inspection and/or internal defect testing.
In some embodiments, the defect inspection test comprises a performance test;
the method for testing the photovoltaic module for defect inspection and recording the initial result comprises the following steps:
testing the performance of the photovoltaic module, and recording the performance as an initial performance test result;
the method comprises the following steps of carrying out defect inspection test on the loaded photovoltaic module, and recording the defect inspection test as a load result:
testing the performance of the loaded photovoltaic module, and recording the performance as a load performance test result;
and comparing and analyzing the initial performance test result and the load performance test result, and judging the change degree of the performance of the loaded photovoltaic module.
In some embodiments, the defect inspection test comprises an environmental burn-in test;
the method for testing the photovoltaic module for defect inspection and recording the initial result comprises the following steps:
carrying out environmental aging test on the photovoltaic module, and recording the result as a result before aging;
the method comprises the following steps of carrying out defect inspection test on the loaded photovoltaic module, and recording the defect inspection test as a load result:
carrying out environmental aging test on the loaded photovoltaic module, and recording the result as an aged result;
the step of comparing the analysis initial result with the load result comprises:
and comparing and analyzing the result before aging and the result after aging, and judging the environmental aging degree of the loaded photovoltaic module.
In some embodiments, after the step of applying a predetermined load to the photovoltaic module by using the testing device and maintaining the predetermined load for a predetermined time, the method for testing the photovoltaic module includes:
and carrying out IEC 61215-2MQT20 test on the photovoltaic module.
In some embodiments, the preset load F satisfies: f is more than or equal to 50KG and less than or equal to 160KG.
In some embodiments, the preset time T satisfies: t is more than or equal to 20 min.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
Fig. 1 is a schematic view of a connection structure of a photovoltaic member provided herein in one embodiment;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a schematic view of a connection structure of a photovoltaic member provided herein in another embodiment;
FIG. 4 is a top view of the partial structure of FIG. 3;
FIG. 5 is a flow chart of a photovoltaic module testing method provided herein;
FIG. 6 is a flow diagram of the photovoltaic module testing method of FIG. 5 in one embodiment;
FIG. 7 is a schematic structural diagram in one embodiment provided herein.
Reference numerals:
1-a photovoltaic module;
11-a first test point;
12-a second test point;
13-a connecting part;
14-a suspended portion;
15-a third test point;
2-color steel tiles;
21-male rib;
22-female ribs;
23-a base plate;
24-a bending part;
25-angular run-out;
3-a cavity;
4-clamping;
5-support;
6-a testing device;
61-test piece;
62-a base;
63-a frame;
64-first driver.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element through intervening elements.
The embodiment of the application provides a photovoltaic component, and in one embodiment, the photovoltaic component comprises a photovoltaic module 1 and a mounting rack (not marked in the figure), wherein the photovoltaic module 1 is directly mounted on the ground or a building main body through the mounting rack so as to utilize solar energy to generate electricity to meet daily use requirements. The building main body includes, but is not limited to, a roof and walls of a production enterprise factory building, a warehouse and other buildings.
In another embodiment, as shown in fig. 1, the photovoltaic component includes a plurality of color steel tile assemblies and a photovoltaic assembly 1 connected with the color steel tile assemblies, wherein the color steel tile assemblies include color steel tiles 2 and a support 5, and the color steel tiles 2 are mounted on the ground or a building body through the support 5, so as to utilize solar energy to generate electricity to meet daily use requirements.
As shown in fig. 1 and 2, the photovoltaic member has a first direction X, a second direction Z and a third direction Y that are perpendicular to each other, the first direction X is a width direction of the color steel tile 2, the second direction Z is a thickness direction of the color steel tile 2, and the third direction Y is a length direction of the color steel tile 2.
The color steel tile 2 has a specific structure as shown in fig. 1, the color steel tile 2 includes a bottom plate 23, and a male rib 21 and a female rib 22 which are oppositely arranged on two sides of the bottom plate 23 along a first direction X, the male rib 21 is fixedly connected with the female rib 22 of the adjacent color steel tile 2 to form a lock seam, and both the male rib 21 and the female rib 22 are provided with a bending part 24 for connecting with the bottom plate 23; the bottom plate 23 is provided with an angular relief part 25 which protrudes upwards along the second direction Z, and the angular relief part 25 is positioned between the male rib 21 and the female rib 22 along the first direction X; be provided with on the bottom plate 23 along the bellied strengthening rib that second direction Z upwards (not marking in the figure), when the photovoltaic component used under the strong wind environment, the air current flows through various steel tile 2 upper surface, make the pressure of various steel tile 2 upper surface reduce, make the upper surface of bottom plate 23 and lower surface have pressure difference, at this moment, the angle portion of hanging down 25, the local deformation can take place under the effect of pressure difference for strengthening rib and the bottom plate 23 near strengthening rib, in order to reduce various steel tile 2 and damage, adjacent various steel tile 2 connects the risk of inefficacy, thereby the life of various steel tile 2 has been prolonged, and between adjacent various steel tile 2, the connection steadiness between various steel tile 2 and the roof has been promoted.
In addition, various steel tile subassembly still includes the protection film, and the protection film covers the surface at various steel tile 2 to the life of extension various steel tile 2.
As shown in fig. 1 to 4, the photovoltaic module 1 includes a connecting portion 13 and a suspended portion 14, the connecting portion 13 is used for contacting with the color steel tile assembly, and the suspended portion 14 is used for enclosing a cavity 3 with the color steel tile 2. The connecting portion 13 includes a first connecting portion (not shown) and a second connecting portion (not shown), the first connecting portion is used for being fixedly connected with the color steel tile assembly, and the second connecting portion is used for being abutted to the color steel tile 2.
Specifically, in an embodiment, as shown in fig. 1 and fig. 2, along the first direction X, two sides of the photovoltaic module 1 are respectively bonded to the bent portions 24 on the male rib 21 and the female rib 22, so as to simplify a connection manner between the photovoltaic module 1 and the color steel tile 2. In this case, a portion of the photovoltaic module 1 to be bonded to the bent portion 24 is a first connection portion. In another embodiment, as shown in fig. 3 and 4, the color steel tile assembly further includes a clamp 4, and two ends of the photovoltaic assembly 1 are respectively connected to the clamp 4 along the first direction X, that is, the photovoltaic assembly 1 is fixed on the color steel tile 2 through the clamp 4, and at this time, a portion of the photovoltaic assembly 1, which is used for being connected to the clamp 4, is a first connecting portion.
In addition, be provided with the supporting part on the various steel tile 2, along second direction Z, the distance between supporting part and the photovoltaic module 1 is between 5mm-20mm, and when photovoltaic module 1 received the pressure on the second direction Z, photovoltaic module 1's local structure took place to deform and with the supporting part butt, and the supporting part can support photovoltaic module 1 to reduce the risk that photovoltaic module 1 damaged because of the deformation volume is too big, and at this moment, the part that is used for with the supporting part butt on the photovoltaic module 1 is the second connecting portion.
Specifically, in one embodiment, the supporting portion is an additional component arranged on the color steel tile 2, that is, the supporting portion is fixedly connected with the color steel tile 2; in another embodiment, the lockstitching or corner relief 25 of the color steel tile 2 is a support.
In the process of installing the photovoltaic component, the operator needs to walk on the surface of the photovoltaic module 1, at this moment, the first connecting portion of the photovoltaic module 1, the second connecting portion, the suspended portion 14 and the corners of the photovoltaic module 1 can be subjected to larger stress, therefore, before the photovoltaic module 1 is put into mass production and used, the connecting portion 13 of the photovoltaic module 1, the suspended portion 14 and the corners of the photovoltaic module 1 need to be trampled and tested, so that the photovoltaic module 1 can be adjusted, the material of the photovoltaic module 1 can be replaced, the production process and the like, the photovoltaic module 1 has stronger trampling resistance, and the service life of the photovoltaic module 1 is prolonged.
To this end, the embodiment of the present application provides a photovoltaic module testing method for testing the anti-stepping performance of the photovoltaic module 1, as shown in fig. 5, the testing method includes:
taking a photovoltaic module 1;
performing a defect inspection test on the photovoltaic module 1, and recording a test result as an initial result;
mounting the photovoltaic module 1 on a color steel tile module;
applying a preset load to the photovoltaic component 1 by using the testing device 6 and maintaining the preset load for a preset time;
carrying out a defect inspection test on the loaded photovoltaic module 1, and recording a test result as a load result;
and comparing and analyzing the initial result and the load result, and judging the change degree of the structure, the function and the like of the photovoltaic module 1 after the load.
In this application embodiment, testing arrangement 6 applys the default load and maintains the time of predetermineeing to photovoltaic module 1, can simulate the operator and stand on photovoltaic module 1 surface, carry out the defect inspection test to photovoltaic module 1 after the load, initial result of contrastive analysis and load result, can judge whether the structure after the load of photovoltaic module 1 satisfies photovoltaic module 1's normal work demand, thereby judge whether the operator stands and can influence the normal work of photovoltaic module 1 on photovoltaic module 1 surface, and then realize the judgement to photovoltaic module 1's anti-performance of stepping on, so that follow-up structure to photovoltaic module 1, the material, the adjustment of processing technology isoparametric.
Specifically, the photovoltaic module 1 has a first test surface located at an edge position of the connecting portion 13, a second test surface located at the suspended portion 14, and a third test surface located at a corner of the photovoltaic module 1.
As shown in fig. 6, the step of applying a predetermined load to the photovoltaic module 1 by using the testing device 6 for a predetermined time includes:
a predetermined load is applied to at least one of the first test surface, the second test surface, and the third test surface for a predetermined time using the test device 6.
In the present embodiment, the testing device 6 can perform the stepping test on only one of the first testing surface, the second testing surface, and the third testing surface to shorten the testing period; alternatively, the testing device 6 can perform the stepping test on at least two of the first testing surface, the second testing surface and the third testing surface respectively or simultaneously, so as to test the stepping resistance of the whole surface of the photovoltaic module 1.
More specifically, as shown in fig. 2, 4 and 6, the step of applying a preset load to the photovoltaic module 1 for a preset time by using the testing device 6 comprises:
selecting a first test point 11 on the first test surface, the second test surface or the third test surface;
the testing device 6 applies a preset load to the first test point 11 for a preset time.
In an embodiment, the testing device 6 only performs the tread test on the photovoltaic component 1 at the first test point 11, i.e. the testing device 6 performs the tread test on the photovoltaic component 1 only once.
In another embodiment, the testing device 6 performs at least two pedaling tests on the photovoltaic module 1. Specifically, as shown in fig. 6, after the step of applying the preset load to the first test point 11 by the testing device 6 for the preset time, the step of applying the preset load to the photovoltaic module 1 by the testing device 6 for the preset time further includes:
selecting a second test point 12 on the first test surface, the second test surface or the third test surface, wherein the second test point 12 and the first test point 11 are distributed along a first direction X and/or a third direction Y;
the testing device 6 applies a predetermined load to the second test point 12 for a predetermined time.
Specifically, in an embodiment, in the first test surface, the second test surface, and the third test surface, the first test point 11 and the second test point 12 are located on the same test surface, that is, the test device 6 performs two sequential tread tests on the first test surface, the second test surface, or the third test surface, so as to improve the reliability of the test result of the anti-tread performance at the first test surface, the second test surface, and the third test surface of the photovoltaic module 1.
In another embodiment, the first test point 11 and the second test point 12 are located on different test surfaces among the first test surface, the second test surface and the third test surface, i.e. the test device 6 performs the tread test on two of the first test surface, the second test surface and the third test surface in sequence. Taking the first test surface and the second test surface as an example, the first test point 11 is located on the first test surface, the second test point 12 is located on the second test surface, and the test device 6 sequentially performs the stepping test on the first test point 11 and the second test point 12, so as to test the stepping resistance performance of different positions on the photovoltaic module 1.
In addition, the testing device 6 can perform three, four, five or more times of trampling tests on the photovoltaic module 1, and correspondingly, a third test point 15, a fourth test point (not shown in the figure), a fifth test point (not shown in the figure), and the like need to be selected on the first test surface, the second test surface, or the third test surface, and the specific times of trampling tests, the specific number of test points, and the distribution positions of test points are not particularly limited in the embodiment of the present application, for convenience of description, the following steps of the three-time trampling tests, the first test point 11 on the first test surface, the second test point 12 on the second test surface, and the third test point 15 on the third test surface are all taken as examples, that is, the step of applying the preset load to the photovoltaic module 1 and maintaining the preset time by the testing device 6 includes:
selecting a first test point 11 on the first test surface;
applying a preset load to the first test point 11 by using the test device 6 and maintaining the preset time;
selecting a second test point 12 on the second test surface;
applying a preset load to the second test point 12 by using the test device 6 and maintaining the preset time;
selecting a third test point 15 on the third test surface;
and applying a preset load to the third test point 15 by using the test device 6 and maintaining the preset load for a preset time.
In this embodiment, the test device 6 is used to perform the stepping test on the first test surface, the second test surface, and the third test surface, respectively, so as to test the stepping resistance of the entire surface of the photovoltaic module 1.
In addition, the photovoltaic module 1 further includes a fourth testing surface, the fourth testing surface is a surface other than the first testing surface, the second testing surface, and the third testing surface, and the step of applying a preset load to the photovoltaic module 1 by using the testing device 6 and maintaining the preset load for a preset time includes:
and applying a preset load to the fourth test surface by using the test device 6 and maintaining the preset load for a preset time so as to test the treading resistance of the whole surface of the photovoltaic module 1.
Specifically, the defect detection of the photovoltaic module 1 includes appearance inspection so as to judge the degree of damage of the appearance of the photovoltaic module 1 after the load, thereby increasing the reliability of the judgment structure of the stepping resistance performance of the photovoltaic module 1.
As shown in fig. 6, the step of performing the defect inspection test on the photovoltaic module 1 and recording the test result as the initial result includes: carrying out appearance inspection on the photovoltaic module 1, and recording a test result as an initial appearance result;
the steps of performing a defect inspection test on the loaded photovoltaic module 1 and recording a test result as a load result include: carrying out appearance inspection on the photovoltaic module 1, and recording a test result as an appearance load result;
the steps of comparing and analyzing the initial result and the load result and judging the change degree of the structure, the function and the like of the photovoltaic module 1 after the load comprises the following steps: and comparing and analyzing the appearance initial result and the appearance load result, and judging the change degree of the appearance of the photovoltaic module 1 after the load according to the appearance change.
Wherein, the appearance inspection comprises external defect inspection and/or internal defect test to improve the accuracy of the test result.
As shown in fig. 6, the step of performing the defect inspection test on the photovoltaic module 1 and recording the test result as the initial result includes:
carrying out external defect inspection on the photovoltaic module 1, and recording a test result as an external initial result;
the photovoltaic module 1 is subjected to an internal defect test and the test result is recorded as an internal initial result.
Wherein the external defect inspection is MQT 01 visual inspection and the internal defect test is EL test.
The step of performing an external defect inspection on the photovoltaic module 1 and recording the test result as an external initial result comprises:
inspecting the number, position and size of defects such as pits, cracks, damages and the like on the outer surface of the photovoltaic module 1, and recording the defects as an external initial result;
the step of performing an internal defect test on the photovoltaic module 1 and recording the test result as an internal initial result comprises:
the photovoltaic module 1 was tested for internal defects using an electroluminescence tester (EL tester), and the number, position, and size of defects such as internal cracks, chips, and the like were recorded as internal initial results.
As shown in fig. 6, the step of performing a defect inspection test on the loaded photovoltaic module 1 and recording a test result as a load result includes:
carrying out external defect inspection on the photovoltaic module 1, and recording a test result as an external load result;
the photovoltaic module 1 is subjected to an internal defect test and the test result is recorded as an internal load result.
Wherein the step of performing an external defect inspection of the photovoltaic module 1 and recording the test result as an external load result comprises:
inspecting the number, position and size of defects such as pits, cracks, broken grids and the like on the outer surface of the photovoltaic module 1, and recording the defects as an external load result;
the step of performing an internal defect test on the photovoltaic module 1 and recording the test result as an internal load result comprises:
the photovoltaic module 1 was tested for internal defects using an electroluminescence tester (EL tester), and the number, position, and size of defects such as internal cracks and chips were recorded as an internal load result.
As shown in fig. 6, the step of comparing and analyzing the initial result and the load result, and determining the degree of change in the structure, function, and the like of the photovoltaic module 1 after being loaded includes:
comparing and analyzing an external initial result and an external load result, and judging the change degree of the external defects after the photovoltaic module 1 is loaded according to the change of the number and the size of the external surface defects;
comparing and analyzing the internal initial result and the internal load result, and judging the change degree of the internal defects after the photovoltaic module 1 is loaded according to the change of the number and the size of the internal defects;
and judging whether the trampling resistance of the photovoltaic module 1 meets the production requirement according to the change degree of the external defects and the internal defects after the photovoltaic module 1 is loaded.
In the embodiment, in the process of performing the trampling test on the photovoltaic assembly 1 by the test device 6, if the outer surface of the photovoltaic assembly 1 has obvious problems such as cracks, broken gates and the like, or the variation degree of external defects after the photovoltaic assembly 1 is loaded is large, the trampling resistance of the photovoltaic assembly 1 is unqualified, the test is directly stopped, and the trampling test is performed again after parameters such as the structure, the process and the material of the photovoltaic assembly 1 are adjusted; if the variation degree of the external defect after the photovoltaic module 1 is loaded is small, the trample resistance of the photovoltaic module 1 meets the requirement, and the photovoltaic module 1 can be put into production and use.
In addition, the defect inspection test of the photovoltaic module 1 further includes a performance test, and the step of performing the defect inspection test on the photovoltaic module 1 and recording the test result as an initial result includes:
testing the performance of the photovoltaic module 1, and recording the test result as an initial performance test result;
the steps of performing a defect inspection test on the loaded photovoltaic module 1 and recording a test result as a load result include:
testing the performance of the loaded photovoltaic module 1, and recording the test result as a load performance test result;
the steps of comparing and analyzing the initial result and the load result and judging the change degree of the structure, the function and the like of the photovoltaic module 1 after the load comprises the following steps:
and comparing and analyzing the initial performance test result and the load performance test result, and judging whether the trampling resistance of the photovoltaic module 1 meets the production requirement according to the change degree of the performance.
Wherein, the performance test includes but not limited to MQT 19.1 initial steady state test, power test, MQT 03 insulation test under the MQT 06.1STC condition, MQT 15 wet leakage test etc. this application does not do the special restriction to the concrete kind, the quantity of performance test.
In addition, the defect inspection test of the photovoltaic module 1 further includes an environmental aging test, wherein the environmental aging test includes, but is not limited to, an MQT 11 thermal cycle test, an MQT 12 humidity and freezing test, and an MQT 13 humidity and thermal cycle test, and the specific content and the number of the environmental aging test are not particularly limited in the embodiments of the present application.
The step of performing a defect inspection test on the photovoltaic module 1 and recording the test result as an initial result includes:
carrying out environmental aging on the photovoltaic module 1, and recording a test result as a result before aging;
the steps of performing a defect inspection test on the loaded photovoltaic module 1 and recording a test result as a load result include:
carrying out environmental aging on the loaded photovoltaic module 1, and recording a test result as an aged result;
the steps of comparing and analyzing the initial result and the load result and judging the change degree of the structure, the function and the like of the photovoltaic module 1 after the load comprises the following steps:
and comparing and analyzing the result before aging and the result after aging, and judging whether the environmental aging degree of the photovoltaic module 1 meets the production requirement.
When the testing device 6 tramples the photovoltaic module 1 for multiple times, taking the third time as an example, after the third trample test is completed, appearance inspection, performance test and environmental aging test need to be carried out on the photovoltaic module 1, after the first trample test is completed and the second trample test is completed, the appearance inspection, the performance test and the environmental aging test can be carried out on the photovoltaic module 1, and the appearance inspection, the performance test and the environmental aging test can also not be carried out, so that the testing period is shortened.
In addition, after the step of applying a preset load to the photovoltaic module by using the testing device and maintaining the preset load for a preset time, the method for testing the photovoltaic module may further include:
the IEC 61215-2MQT20 test is carried out on the photovoltaic module 1, namely after the photovoltaic module 1 is installed on the color steel tile assembly, the photovoltaic module 1 is pulled up and pressed down by using the device in the second direction Z, the pulling up and pressing down operation is a test cycle once, and the device is used for carrying out the test cycle of about one thousand times on the photovoltaic module 1 so as to test the structural stability of the photovoltaic module 1 after loading.
In any of the above embodiments, the predetermined load F satisfies: f is more than or equal to 50KG and less than or equal to 160KG, and specifically, the preset load can be 50KG, 60KG, 86KG, 112KG, 160KG and the like.
When an operator stands on the surface of the photovoltaic module 1 for installation, the situation that the operator carries an installation tool, carries the photovoltaic module 1 and the like exists, if the preset load is small, namely F is less than 50KG, the reliability of the test result is poor; if the preset load is larger, i.e. F is greater than 160KG, the test cost of the photovoltaic module 1 is increased, and the production cost of the photovoltaic module 1 is increased. Therefore, in the embodiment, F is more than or equal to 50KG and less than or equal to 160KG, the reliability of the test result of the photovoltaic module 1 can be improved, and the test cost of the photovoltaic module 1 is reduced.
The preset time T satisfies the following conditions: t is more than or equal to 20min, and concretely, the preset time can be 20min, 35min, 42min, 58min, 63min, 70min and the like.
When an operator stands on the surface of the photovoltaic module 1 for installation, the operator needs to be in contact with the photovoltaic module 1 for a long time, if the preset time is short, namely T is less than 20min, the reliability of the test result is poor. Therefore, in the embodiment, T is less than or equal to 20min, and the reliability of the test result of the photovoltaic module 1 can be improved.
Specifically, in the test process, the preset time is set to 60min to shorten the test period of the photovoltaic module 1.
As shown in fig. 7, the testing device 6 includes a testing piece 61, the testing piece 61 is provided with an abutting surface, and the testing piece 61 applies a preset load to the photovoltaic module 1 through the abutting surface. In one embodiment, the outline shape of the abutting surface is matched with the outline shape of the sole so as to increase the accuracy and reliability of the test result, and particularly, the outline shape of the abutting surface is matched with the outline shape of the sole of the forefoot part and the heel part; in another embodiment, the contour of the abutting surface is a circle, a rectangle or other regular shape to reduce the processing cost of the test piece 61.
The area S of the contact surface satisfies: 50cm 2 ≤S≤400cm 2 。
In the present embodiment, if the area of the contact surface is small, S < 50cm 2 When a preset load is applied to the photovoltaic module 1 through the abutting surface, the pressure applied to the photovoltaic module 1 is larger, and the difference between the pressure applied to the photovoltaic module 1 by an operator in the actual installation process is larger, so that the reliability of a test result is reduced; if the area of the contact surface is large, S is larger than 400cm 2 When a preset load is applied to the photovoltaic module 1 through the abutting surface, light is emittedThe pressure intensity of the photovoltaic component 1 is small, the difference between the pressure intensity of the photovoltaic component 1 and the pressure intensity exerted by an operator on the photovoltaic component 1 in the actual installation process is large, and the reliability of the test result is reduced. Therefore, 50cm 2 ≤S≤400cm 2 The accuracy and the reliability of the test result of the photovoltaic module 1 are improved.
As shown in fig. 7, the testing device 6 includes a base 62 and a frame 63, the photovoltaic module 1 can be directly placed on the base 62, or after the photovoltaic module 1 is installed on the color steel tile 2, the color steel tile 2 is placed on the base 62, the frame 63 extends along the second direction Z, and the testing piece 61 is installed on the frame 63.
Specifically, in one embodiment, the test piece 61 is manually placed by an operator onto the surface of the photovoltaic module 1.
In another embodiment, as shown in fig. 7, the testing device 6 further includes a driving assembly, the driving assembly can drive the testing element 61 to move, and specifically, the driving assembly includes a first driving element 64, a second driving element (not shown), and a third driving element (not shown), the first driving element 64 can drive the testing element 61 to move along the second direction Z, the second driving element can drive the testing element 61 to move along the first direction X, and the third driving element can drive the testing element 61 to move along the third direction Y, so that the testing element 61 can perform the tread test on the photovoltaic element 1 at the first testing point 11, the second testing point 12, and the third testing point 15, respectively.
The embodiment of the present application is described by taking the driving assembly as an example to drive the test piece 61 to move.
In summary, as shown in fig. 6 and fig. 7, the method for testing a photovoltaic module provided by the embodiment of the present application includes:
taking a photovoltaic module 1;
carrying out external defect inspection on the photovoltaic module 1, and recording a test result as an external initial result;
carrying out internal defect test on the photovoltaic assembly 1, and recording a test result as an internal initial result;
carrying out performance test on the photovoltaic module 1, and recording a test result as an initial performance test result;
carrying out environmental aging test on the photovoltaic module 1, and recording a test result as a result before aging;
placing the photovoltaic module 1 on the base 62 of the testing device 6;
the second driving element and/or the third driving element drives the testing element 61 to move, so that the testing element 61 is positioned above the first testing point 11 in the second direction Z, the first driving element 64 drives the testing element 61 to move, and the testing surface applies a preset load to the first testing point 11 and maintains a preset time;
the second driving element and/or the third driving element drives the testing element 61 to move, so that the testing element 61 is positioned above the second testing point 12 in the second direction Z, the second driving element drives the testing element 61 to move, the testing surface applies a preset load to the second testing point 12, and the preset time is maintained;
the second driving piece and/or the third driving piece drives the testing piece 61 to move, so that the testing piece 61 is positioned above the third testing point 15 in the second direction Z, the first driving piece 64 drives the testing piece 61 to move, the testing surface applies a preset load to the third testing point 15, and the preset time is maintained;
carrying out internal defect test on the loaded photovoltaic module 1, and recording a test result as an internal load result;
carrying out external defect inspection on the loaded photovoltaic module 1, and recording a test result as an external load result;
carrying out performance test on the loaded photovoltaic module 1, and recording a test result as a load performance test result;
carrying out IEC 61215-2MQT20 test on the loaded photovoltaic module 1;
carrying out environmental aging test on the loaded photovoltaic module 1, and recording a test result as an aged result;
comparing and analyzing the external initial result and the external load result, and judging the external defect change degree of the photovoltaic module 1 after being loaded;
comparing and analyzing the internal initial result and the internal load result, and judging the internal defect change degree of the photovoltaic module 1 after being loaded;
comparing and analyzing the initial performance test result and the load performance test result, and judging the performance change degree of the photovoltaic module 1 after loading;
comparing and analyzing the result before aging and the result after aging, and judging the environmental aging degree of the photovoltaic module 1;
and judging the trampling resistance of the photovoltaic module 1 according to the change degree of the external defect, the change degree of the internal defect, the change degree of the performance and the environmental aging degree of the photovoltaic module 1 after being loaded.
The sequence and the times of the internal defect test, the external defect inspection, the performance test, the IEC 61215-2MQT20 test and the environmental aging test are not specially limited.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (16)
1. A photovoltaic module testing method for testing the anti-treading performance of the photovoltaic module (1), characterized in that the photovoltaic module testing method comprises:
carrying out a defect inspection test on the photovoltaic module (1), and recording as an initial result;
installing the photovoltaic module (1) on a color steel tile module;
applying a preset load to the photovoltaic module (1) by using a testing device (6) and maintaining for a preset time;
carrying out a defect inspection test on the loaded photovoltaic module (1), and recording the defect inspection test as a load result;
and comparing and analyzing the initial result and the load result.
2. The photovoltaic module testing method according to claim 1, wherein the photovoltaic module (1) comprises a connecting part (13) and a hanging part (14), the connecting part (13) is used for contacting with the color steel tile assembly, and the hanging part (14) is used for enclosing a cavity (3) with the color steel tile assembly;
a first test surface, a second test surface and a third test surface are arranged on the photovoltaic component (1), the first test surface is positioned at the edge of the connecting part (13), the second test surface is positioned at the suspended part (14), and the third test surface is positioned at the corner of the photovoltaic component (1);
the method comprises the following steps of applying a preset load to the photovoltaic module (1) by using a testing device (6) and maintaining the preset load for a preset time, wherein the steps comprise:
applying the preset load to at least one of the first test surface, the second test surface, the third test surface with the test device (6) for the preset time.
3. The photovoltaic module testing method according to claim 2, wherein the step of applying the preset load to at least one of the first, second, and third testing surfaces with the testing device (6) for the preset time comprises:
-selecting a first test point (11) on said first test surface or said second test surface or said third test surface;
and applying the preset load to the first test point (11) by using the test device (6) and maintaining the preset time.
4. The method according to claim 3, wherein after the step of applying the preset load to the first test point (11) with the test device (6) for the preset time, the step of applying the preset load to at least one of the first test surface, the second test surface, and the third test surface with the test device (6) for the preset time comprises:
selecting second test points (12) on the first test surface or the second test surface or the third test surface, wherein the first test points (11) and the second test points (12) are distributed along the length direction and/or the width direction of the photovoltaic module;
and applying the preset load to the second test point (12) by using the test device (6) and maintaining the preset time.
5. The method according to claim 4, characterized in that the first test point (11) and the second test point (12) are located on the same one of the first test surface, the second test surface, the third test surface.
6. The method according to claim 4, characterized in that the first test point (11) and the second test point (12) are located on two of the first test surface, the second test surface, and the third test surface, respectively.
7. The photovoltaic module testing method according to any one of claims 2 to 6, characterized in that the photovoltaic module (1) is further provided with a fourth testing surface, the fourth testing surface being a surface outside the first, second, third testing surface;
the method comprises the following steps of applying a preset load to the photovoltaic module (1) by using a testing device (6) and maintaining the preset load for a preset time, wherein the steps comprise:
applying the preset load to the fourth test surface with the test device (6) and maintaining for the preset time.
8. The photovoltaic module testing method according to claim 4, wherein the testing device (6) comprises a testing piece (61) and a driving component, the testing piece (61) is used for applying a preset load to the photovoltaic module (1), the driving component is connected with the testing piece (61), and the driving component can drive the testing piece (61) to move along the length direction, the width direction and the thickness direction of the photovoltaic module (1);
the method comprises the following steps of applying a preset load to the photovoltaic module (1) by using a testing device (6) and maintaining the preset load for a preset time, wherein the steps comprise:
the driving component drives the test piece (61) to move along the length direction and/or the width direction of the photovoltaic component (1) so that the test piece (61) is positioned above the first test point (11) in the thickness direction of the photovoltaic component (1);
the driving assembly drives the testing piece (61) to move along the thickness direction of the photovoltaic assembly (1), and the testing piece (61) is used for carrying out the preset load on the first testing point (11) and maintaining the preset load for the preset time;
the driving component drives the test piece (61) to move along the length direction and/or the width direction of the photovoltaic component (1) so that the test piece (61) is positioned above the second test point (12) in the thickness direction of the photovoltaic component (1);
the driving assembly drives the testing piece (61) to move along the thickness direction of the photovoltaic assembly (1), and the testing piece (61) is used for presetting load on the second testing point (12) and maintaining the preset time.
9. The photovoltaic module testing method according to claim 8, wherein the testing piece (61) is provided with an abutting surface, and the area S of the abutting surface satisfies: 50cm 2 ≤S≤400cm 2 ；
The method comprises the following steps of applying a preset load to the photovoltaic module (1) by using a testing device (6) and maintaining the preset load for a preset time, wherein the steps comprise:
the test piece (61) applies the preset load to the photovoltaic module (1) through the abutting surface.
10. The photovoltaic module testing method of claim 1, wherein the defect inspection test comprises an appearance inspection;
the step of performing a defect inspection test on the photovoltaic module (1) and recording as an initial result comprises:
inspecting the appearance of the photovoltaic module (1), and recording the number and the size of appearance defects of the photovoltaic module (1) as an appearance initial result;
the method comprises the following steps of carrying out a defect inspection test on the loaded photovoltaic module (1) and recording the defect inspection test as a load result:
inspecting the appearance of the photovoltaic module (1) after loading, and recording the number and the size of appearance defects of the photovoltaic module (1) as an appearance loading result;
the step of comparing and analyzing the initial result and the load result comprises:
and comparing and analyzing the appearance initial result and the appearance load result, and judging the change degree of the appearance of the photovoltaic module (1) after loading.
11. The photovoltaic module testing method according to claim 10, wherein the appearance test comprises an external defect inspection and/or an internal defect test.
12. The photovoltaic module testing method of claim 1, wherein the defect inspection test comprises a performance test;
the step of performing a defect inspection test on the photovoltaic module (1) and recording as an initial result comprises:
testing the performance of the photovoltaic module (1) and recording as an initial performance test result;
the method comprises the following steps of carrying out a defect inspection test on the loaded photovoltaic module (1) and recording the defect inspection test as a load result:
testing the performance of the loaded photovoltaic module (1), and recording the performance as a load performance test result;
and comparing and analyzing the initial performance test result and the load performance test result, and judging the change degree of the performance of the photovoltaic module (1) after loading.
13. The photovoltaic module testing method of claim 1, wherein the defect inspection test comprises an environmental burn-in test;
the step of performing a defect inspection test on the photovoltaic module (1) and recording as an initial result comprises:
carrying out environmental aging test on the photovoltaic module (1), and recording the result as a result before aging;
the method comprises the following steps of carrying out defect inspection test on the loaded photovoltaic module (1) and recording the defect inspection test as a load result:
carrying out environmental aging test on the loaded photovoltaic module (1), and recording the result as an aged result;
the step of comparing and analyzing the initial result and the load result comprises:
and comparing and analyzing the result before aging and the result after aging, and judging the environmental aging degree of the photovoltaic module (1) after loading.
14. The photovoltaic module testing method according to claim 1, wherein after the step of applying a preset load to the photovoltaic module (1) by using the testing device (6) for a preset time, the photovoltaic module testing method comprises:
and carrying out IEC 61215-2MQT20 test on the photovoltaic module (1).
15. The photovoltaic module testing method according to claim 1, wherein the preset load F satisfies: f is more than or equal to 50KG and less than or equal to 160KG.
16. The photovoltaic module testing method according to claim 1, wherein the preset time T satisfies: t is less than or equal to 20 min.
Priority Applications (17)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211599370.2A CN115811277A (en) | 2022-12-12 | 2022-12-12 | Photovoltaic module testing method |
| US18/090,715 US20240195355A1 (en) | 2022-12-12 | 2022-12-29 | Testing device and method for testing photovoltaic module |
| EP23156254.7A EP4387088A1 (en) | 2022-12-12 | 2023-02-13 | Test device and method for testing photovoltaic module |
| CN202380010111.8A CN117203890A (en) | 2022-12-12 | 2023-06-30 | Photovoltaic module testing method and photovoltaic profiled steel sheet member testing method |
| CN202380010117.5A CN117480373A (en) | 2022-12-12 | 2023-06-30 | Photovoltaic module testing method and photovoltaic profiled steel sheet member testing method |
| PCT/CN2023/105126 WO2024124882A1 (en) | 2022-12-12 | 2023-06-30 | Photovoltaic module test method and photovoltaic profiled steel sheet component test method |
| CN202380010113.7A CN117296245A (en) | 2022-12-12 | 2023-06-30 | Photovoltaic module testing method and photovoltaic profiled steel sheet member testing method |
| CN202380010114.1A CN117280600A (en) | 2022-12-12 | 2023-06-30 | Photovoltaic module testing method and photovoltaic profiled steel sheet member testing method |
| CN202380010118.XA CN117396746A (en) | 2022-12-12 | 2023-06-30 | Photovoltaic module testing method and photovoltaic profiled steel sheet member testing method |
| PCT/CN2023/105160 WO2024124885A1 (en) | 2022-12-12 | 2023-06-30 | Photovoltaic module testing method and photovoltaic profiled steel sheet member testing method |
| PCT/CN2023/105145 WO2024124884A1 (en) | 2022-12-12 | 2023-06-30 | Photovoltaic module test method and photovoltaic profiled steel sheet component test method |
| PCT/CN2023/105134 WO2024124883A1 (en) | 2022-12-12 | 2023-06-30 | Test method for photovoltaic assembly, and test method for photovoltaic profiled steel sheet component |
| CN202380010116.0A CN117203891A (en) | 2022-12-12 | 2023-06-30 | Photovoltaic module testing method and photovoltaic profiled steel sheet member testing method |
| CN202380010115.6A CN117178476A (en) | 2022-12-12 | 2023-06-30 | Photovoltaic module testing method and photovoltaic profiled steel sheet member testing method |
| PCT/CN2023/105113 WO2024124881A1 (en) | 2022-12-12 | 2023-06-30 | Test method for photovoltaic assembly, and test method for photovoltaic profiled steel sheet component |
| PCT/CN2023/105098 WO2024124880A1 (en) | 2022-12-12 | 2023-06-30 | Photovoltaic module testing method and photovoltaic profiled steel plate component testing method |
| PCT/CN2023/105065 WO2024124879A1 (en) | 2022-12-12 | 2023-06-30 | Photovoltaic module testing method and photovoltaic profiled steel sheet component testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211599370.2A CN115811277A (en) | 2022-12-12 | 2022-12-12 | Photovoltaic module testing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115811277A true CN115811277A (en) | 2023-03-17 |
Family
ID=85485683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211599370.2A Pending CN115811277A (en) | 2022-12-12 | 2022-12-12 | Photovoltaic module testing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115811277A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024124879A1 (en) * | 2022-12-12 | 2024-06-20 | 晶科能源(海宁)有限公司 | Photovoltaic module testing method and photovoltaic profiled steel sheet component testing method |
-
2022
- 2022-12-12 CN CN202211599370.2A patent/CN115811277A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024124879A1 (en) * | 2022-12-12 | 2024-06-20 | 晶科能源(海宁)有限公司 | Photovoltaic module testing method and photovoltaic profiled steel sheet component testing method |
| WO2024124885A1 (en) * | 2022-12-12 | 2024-06-20 | 晶科能源(海宁)有限公司 | Photovoltaic module testing method and photovoltaic profiled steel sheet member testing method |
| WO2024124880A1 (en) * | 2022-12-12 | 2024-06-20 | 晶科能源(海宁)有限公司 | Photovoltaic module testing method and photovoltaic profiled steel plate component testing method |
| WO2024124881A1 (en) * | 2022-12-12 | 2024-06-20 | 晶科能源(海宁)有限公司 | Test method for photovoltaic assembly, and test method for photovoltaic profiled steel sheet component |
| WO2024124884A1 (en) * | 2022-12-12 | 2024-06-20 | 晶科能源(海宁)有限公司 | Photovoltaic module test method and photovoltaic profiled steel sheet component test method |
| WO2024124883A1 (en) * | 2022-12-12 | 2024-06-20 | 晶科能源(海宁)有限公司 | Test method for photovoltaic assembly, and test method for photovoltaic profiled steel sheet component |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115811277A (en) | Photovoltaic module testing method | |
| EP2234170A1 (en) | Solar battery inspecting apparatus and method for judging solar battery defect | |
| US20110148432A1 (en) | Method and device for checking the electrical insulation as well as a method and system for producing photovoltaic modules | |
| JP2008026113A (en) | Defect inspection device of solar cell and method for inspecting defect of solar cell | |
| CN108548657A (en) | Testing load of photovoltaic module method | |
| CN115987215A (en) | Photovoltaic module testing method | |
| CN103217580A (en) | Non-destructive evaluation methods for electric joints | |
| CN213456087U (en) | Test platform | |
| CN111678690B (en) | Tool and method for measuring minimum plugging force of sealing rubber ring | |
| KR20130008187A (en) | Measurment device for flux and method for measurment thereof | |
| KR20210067111A (en) | Movable type solar module inspection vehicle and inspection thereof | |
| CN109059709B (en) | Detection method for automobile panoramic sunshade curtain skylight | |
| US20240195355A1 (en) | Testing device and method for testing photovoltaic module | |
| US20240192103A1 (en) | Testing device and method for testing photovoltaic module | |
| CN101726404A (en) | Detection platform for luminous component with a plurality of luminous elements and detection method thereof | |
| KR102339383B1 (en) | A method for evaluating performance of used-solar panels and its application to online sale business | |
| CN108286550B (en) | Mounting structure and mounting method of concrete stress-strain detection device | |
| CN110261059A (en) | A method of influence of the detection photovoltaic module dependent variable to its output characteristics | |
| CN205483530U (en) | Key machine is examined to high -efficient keyboard | |
| KR101853349B1 (en) | Equipment for detecting failure of lighting in vehicle | |
| CN218211116U (en) | Quick inspection tool of dysmorphism support | |
| CN205324191U (en) | Key machine is examined to keyboard | |
| CN216081207U (en) | Stainless steel turbine shell shared comprehensive inspection gauge | |
| CN107942546A (en) | Liquid crystal cell tests system and test method | |
| Schuss et al. | Rapid fault diagnosis of photovoltaic panels under outdoor environmental conditions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |