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Method for controlling assembly temperature in photovoltaic assembly temperature coefficient test

A photovoltaic module and temperature coefficient technology, applied in the field of photovoltaics, can solve problems such as inaccurate test results and temperature differences, achieve accurate stability and reduce temperature differences

Inactive Publication Date: 2016-05-04
ALTUSVIA ENERGY TAICANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Referring to clause 10.4 of the ICE61215 standard, in the temperature coefficient test of photovoltaic modules, the temperature of the module needs to be changed at least 6 times before and after. During this temperature change process, it is easy to cause a temperature difference between the outer surface of the module and the internal battery, resulting in inaccurate test results

Method used

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  • Method for controlling assembly temperature in photovoltaic assembly temperature coefficient test

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Embodiment 1

[0019] As shown in the accompanying drawings, a method for controlling the temperature of a photovoltaic module during a temperature coefficient test of a photovoltaic module according to the present invention, the specific steps of the manufacturing method are as follows:

[0020] (a) Place the photovoltaic module in the environmental test chamber, and the size of the test chamber is 1.8m*1.5m*2.0m;

[0021] (b) Heat the temperature inside the environmental test chamber to 25°C with an electric heater;

[0022] (c) The photovoltaic module is stabilized at the set ambient temperature for 50 minutes to reach thermal equilibrium;

[0023] (d) By using the photovoltaic module electrical performance test system to test the power of the photovoltaic module under the condition of 25°C, the power value is obtained;

[0024] (e) Repeat steps b-d for the first time, complete the power test of the photovoltaic module under the condition of heating the temperature in the environmental t...

Embodiment 2

[0029] As shown in the accompanying drawings, a method for controlling the temperature of a photovoltaic module during a temperature coefficient test of a photovoltaic module according to the present invention, the specific steps of the manufacturing method are as follows:

[0030] (a) Place the photovoltaic module in the environmental test chamber, and the size of the test chamber is 1.8m*1.5m*2.0m;

[0031] (b) Heat the temperature inside the environmental test chamber to 25°C through the light heater;

[0032] (c) The photovoltaic module is stable at the set ambient temperature for 60 minutes to reach thermal equilibrium;

[0033] (d) By using the photovoltaic module electrical performance test system to complete the power test of the photovoltaic module under the condition of 25°C, the power value is obtained;

[0034] (e) Repeat steps b-d for the first time, and complete the power test of the photovoltaic module under the condition of heating the temperature in the envir...

Embodiment 3

[0039] As shown in the accompanying drawings, a method for controlling the temperature of a photovoltaic module during a temperature coefficient test of a photovoltaic module according to the present invention, the specific steps of the manufacturing method are as follows:

[0040] (a) Place the photovoltaic module in the environmental test chamber, and the size of the test chamber is 1.8m*1.5m*2.0m;

[0041] (b) Heat the temperature inside the environmental test chamber to 25°C through an electric heater or a light heater;

[0042] (c) The photovoltaic module is stable at the set ambient temperature for 60 minutes to reach thermal equilibrium;

[0043] (d) By using the photovoltaic module electrical performance test system to test the power of the photovoltaic module under the condition of 25°C, the power value is obtained;

[0044] (e) Repeat steps b-d for the first time, and complete the power test of the photovoltaic module under the condition of heating the temperature i...

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Abstract

The invention discloses a method for controlling assembly temperature in a photovoltaic assembly temperature coefficient test. The method includes the following steps that: step one, a photovoltaic assembly is arranged in an environmental test box; step two, temperature in the environmental test box is heated to test temperature through a heating device; step three, the photovoltaic assembly is stabilized for 50 min to 60 min under a set ambient temperature, so as to achieve thermal equilibrium; and step four, a photovoltaic assembly electrical performance testing system is utilized to perform power testing on the photovoltaic assembly under a test temperature condition. With the method adopted, the difference of detection temperature and the temperature of a power generation device in the assembly can be decreased as much as possible, and the working characteristics of the assembly at various temperature points can be tested more accurately, and rendered temperature coefficients more accord with the performance of the assembly in an actual work process, and the stability of a product can be judged more accurately.

Description

technical field [0001] The invention relates to the field of photovoltaics, in particular to a method for controlling the temperature of a photovoltaic module when testing the temperature coefficient of the photovoltaic module. Background technique [0002] A solar cell, also known as a photovoltaic cell, is a semiconductor device that converts solar light energy directly into electrical energy. Because it is a green environmental protection product, it will not cause environmental pollution, and it is a renewable resource. Therefore, in today's energy shortage situation, solar cells are a new type of energy with broad development prospects. [0003] Solar cells are made into solar photovoltaic modules through a series of encapsulation processes. However, manufacturers are not only able to manufacture, they must consider that the solar photovoltaic modules they develop and produce can pass relevant international standard certification and testing, or obtain relevant certifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S50/10G01R31/26
CPCG01R31/2642H02S50/00Y02E10/50
Inventor 钱亮嵇友谊钱晟浩崔会英张斌
Owner ALTUSVIA ENERGY TAICANG
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