Humid heat simulation test accelerating method for photovoltaic module

A photovoltaic module, damp heat test technology, applied in the direction of weather resistance/light resistance/corrosion resistance, measuring devices, instruments, etc., can solve the problems that cannot meet the needs of new material evaluation, and achieve a reasonable test method that is conducive to application and promotion Effect

Inactive Publication Date: 2011-09-07
TRINA SOLAR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unable to meet the needs of enterpr

Method used

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  • Humid heat simulation test accelerating method for photovoltaic module
  • Humid heat simulation test accelerating method for photovoltaic module
  • Humid heat simulation test accelerating method for photovoltaic module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: The accelerated test method of simulated damp heat test of photovoltaic modules, selecting material samples for photovoltaic modules, test environment 1: 121°C / 100%RH; test environment 2: 121°C / 85%RH; test environment 3: 85°C / 85% RH; 2 pieces of samples were tested in each test environment, and the appearance, breakdown voltage, water permeability, yellowing index, tensile force, and elongation were tested before and after the experiment.

[0013] Table 2 shows the changes in the appearance of the samples after the experiment in the three test environments.

[0014] Table 2:

[0015] Environmental test name

Test Cycle

Visual inspection results

No environmental test

0h

OK

121℃ / 85%RH

24h

curly

121℃ / 85%RH

48h

curly

121℃ / 85%RH

72h

curly

121℃ / 85%RH

96h

become brittle

No environmental test

0h

OK

121℃ / 100%RH

24h

curly

121℃ / 100%R...

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Abstract

The invention relates to a humid heat simulation test accelerating method for a photovoltaic module, which comprises the following steps of: selecting a material sample for the photovoltaic module, wherein the testing environment is 121+/-2 DEG C/100+/-5percent RH or 121+/-2 DEG C/85+/-5percent RH; and performing a humid heat simulation test of the material sample for the photovoltaic module by utilizing the testing environment. The humid heat simulation test accelerating method can be equivalent to 1,000 hours of a standard humid heat test in international electrotechnical commission (IEC) within 60 hours, is efficient and fast, can fulfill the aim of a long-term exposed humid heat test outdoors through a short-term test indoors, solves actual problems of a development party and an application party, and facilitates application and promotion of the material of the photovoltaic module.

Description

technical field [0001] The invention relates to an accelerated test method for a simulated damp heat test of a photovoltaic module. Background technique [0002] For photovoltaic modules used outdoors for a long time, temperature and humidity are the main factors affecting their long-term reliability. In this regard, most laboratories currently use the damp heat test in the IEC standard to evaluate photovoltaic module materials. The test environment adopted in the IEC standard is 85±2°C / 85±5%RH. Although this test can more accurately simulate the aging effect of outdoor temperature and humidity, it requires a cycle of up to 1000 hours. It cannot meet the needs of enterprises for the evaluation of new materials. Therefore, it is necessary to develop an accelerated test method for simulating the damp heat test, to achieve the same test effect in a short test period, and to find out the basic equivalent relationship with the standard laboratory test and outdoor damp heat cond...

Claims

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Application Information

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IPC IPC(8): G01N17/00
Inventor 谢锦文魏雪飞
Owner TRINA SOLAR CO LTD
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