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Method for detecting hot spot of solar cell

A technology of solar cells and detection methods, applied in the field of solar cells, can solve the problems of limited number of components, inability to realize solar cells, one-sided results, etc., and achieve the effects of small external influence, strong operability, and simple implementation.

Inactive Publication Date: 2018-02-09
HANWHA SOLARONE QIDONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two obvious defects in this method. One is that the number of components sampled is very limited, and the results obtained are relatively one-sided, which cannot reflect the overall production quality of solar cells; Realize timely feedback on the quality of solar cell production

Method used

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  • Method for detecting hot spot of solar cell
  • Method for detecting hot spot of solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] refer to Figures 1 to 2 , a kind of detection method of solar cell hot spot, specifically comprises the following steps:

[0023] Step S1: Preparation of Laminated Assembly

[0024] A battery sheet is first prepared into a laminated assembly. The preparation of laminated modules is basically the same as that of photovoltaic modules. The operation of preparing the laminated assembly in this embodiment is as follows: electrically connect a piece of battery sheet to the flow guide to form the battery layer 3, and cover the packaging material and the cover plate on the top and bottom of the battery layer 3 respectively to form a top cover from top to bottom. A laminated assembly with a structure of plate 1, front packaging material 2, battery layer 3, rear packaging material 4, and lower cover plate 5. In this embodiment, the flow guide is a welding strip, the upper cover 1 is made of glass, and the lower cover 2 is made of a polymer material, such as PET, PC or PMMA. ...

Embodiment 2

[0035] The detection method of a solar cell hot spot in this embodiment is basically the same as that in Embodiment 1, except that the temperature detection device in this embodiment is a temperature measuring gun. When using a temperature measuring gun for temperature detection, it is necessary to divide the laminated components into regions, monitor the temperature changes in each region and observe the phenomena generated by the laminated components to determine the specific location of the hot spots.

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Abstract

The invention discloses a method for detecting a hot spot of a solar cell, and the method comprises the following steps: preparing a lamination assembly through a battery piece; applying a reverse bias voltage to the lamination assembly; measuring the temperature of each part of the lamination assembly through a temperature detection device, and observing the phenomenon happening to the laminationassembly. The method provided by the invention can achieve the quick and reliable detection and discrimination of whether the solar cell has a hot spot risk or not through the preparation of a singlecell into the lamination assembly. The method is simple in implementation, is high in operability. The cell does not need to be shaded, and the impact from the outside is small, so the result is moreaccurate.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a method for detecting hot spots of solar cells. Background technique [0002] With the continuous acceleration of economic globalization and the rapid development of industrial economy, worldwide energy shortage and environmental pollution have become important issues restricting the sustainable development of human society. It is urgent to vigorously develop renewable and non-polluting energy. The inexhaustible, inexhaustible, and non-polluting properties of solar energy have attracted more and more attention from governments and people. With the continuous development of photovoltaic technology, solar cell products, which are semiconductor devices that convert solar energy into electrical energy, have also been recognized. Fast development. In the application of solar cells, some unfavorable factors that affect the power generation performance and life of photovoltaic mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S50/10
CPCH02S50/10Y02E10/50
Inventor 戴燕华符欣金起弘崔美丽赵赛丹
Owner HANWHA SOLARONE QIDONG
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