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Detection method for solar battery piece with qualified hot spot temperature range

A technology of solar cell and hot spot temperature, which is applied in the field of solar cells to achieve the effect of rich data volume, low cost and short test cycle

Active Publication Date: 2016-10-26
盐城阿特斯阳光能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no effective way to obtain a large number of accurate component hot spot temperatures.

Method used

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  • Detection method for solar battery piece with qualified hot spot temperature range
  • Detection method for solar battery piece with qualified hot spot temperature range

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Embodiment 1

[0049] A method for detecting solar cells with a qualified hot spot temperature range, comprising the steps of:

[0050] (1) Establish qualified hot spot temperature range:

[0051] ①Provide 29 solar cells as test samples;

[0052] ② measure the hot spot temperature T of each solar cell in the test sample 片 ;

[0053] ③ Assemble the solar cells in the test sample into 29 laminates respectively;

[0054] ④ measure the hot spot temperature T of each solar cell sheet in the laminate 组件 ;

[0055] ⑤ Take 180°C (T 0 ) is the hot spot qualified temperature of the solar laminate;

[0056] ⑥ with T 片 as the abscissa, with T 组件 As the ordinate, draw an X-Y point diagram, such as figure 2 ;

[0057] ⑦ Put T 组件 =T 0 The abscissa of the first point of is marked as T 片 ’, the abscissa is at T 片 ’ The following range is the qualified hot spot temperature range;

[0058] (2) Test the hot spot temperature T of the solar cell 片测 ;

[0059] (3) Judgment T 片测 ≤ T 片 ', then th...

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Abstract

The invention relates to a detection method for a solar battery piece with a qualified hot spot temperature range. The method comprises the following steps: (1), building the qualified hot spot temperature range; (2), testing the hot spot temperature T<piece measurement> of the solar battery piece; (3), judging that the hot spot temperature of the solar battery piece is qualified if the hot spot temperature T<piece measurement> is determined to be not greater than T'<piece>, or else, judging that the hot spot temperature of the solar battery piece is not qualified. The method provided by the invention is low in cost, and is short in testing period (the sorting time consumption of a conventional method at a module side is 5h, and the sorting time consumption of an improved method is 0.5h). Meanwhile, the number of test samples is not limited, and the method can achieve the testing of a large number test samples, so as to obtain abundant data. Moreover, the hot spot temperature, measured through the method, of the module is accurate and reliable.

Description

technical field [0001] The technical field of solar cells of the present invention relates to a method for detecting solar cells with a qualified hot spot temperature range. Background technique [0002] With the widespread application of solar cells, some unfavorable factors that affect the power generation performance and life of photovoltaic modules also appear, and the hot spot effect is one of them. The so-called hot spot effect refers to that when a battery or a group of batteries in a module is shaded or damaged, the operating current exceeds the reduced short-circuit current of the battery or battery group, and hot spot heating occurs in the module. At this point the affected cell or battery pack is placed in reverse bias, dissipating power and causing overheating. Excessively high temperature may cause permanent damage such as burning or dark spots in local areas of components, melting of solder joints, aging of packaging materials, glass bursting, corrosion of sol...

Claims

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Application Information

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IPC IPC(8): H01L21/66
CPCH01L22/10H01L22/14H01L22/20
Inventor 齐素芳郑旭然邢国强
Owner 盐城阿特斯阳光能源科技有限公司
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