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Photovoltaic module test method and photovoltaic module control method

A technology of photovoltaic modules and testing methods, applied in the monitoring of photovoltaic systems, photovoltaic modules, program control, etc., can solve the problems of power generation power attenuation, delamination, failure, etc., and achieve the effect of easy observation and accelerated aging speed.

Active Publication Date: 2017-05-31
江西瑞安新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the photovoltaic modules used for solar power generation are used outdoors for a long time, delamination often occurs and lead to attenuation and failure of power generation, which affects the use and promotion of solar cell modules
At present, there is no prediction method specifically for delamination of photovoltaic modules, and unqualified products that are easy to delaminate are often produced in large quantities

Method used

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  • Photovoltaic module test method and photovoltaic module control method

Examples

Experimental program
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no. 1 example

[0026] see figure 1 , the present embodiment provides a method for testing a photovoltaic module, involving a photovoltaic module, the method comprising:

[0027] S210: Power on the photovoltaic module, increase the temperature of the environment where the photovoltaic module is located, and increase the humidity of the environment where the photovoltaic module is located.

[0028] The photovoltaic module should be coupled with the DC power supply, and the power supply should be controlled on and off through the switch. The current passing through the photovoltaic module is 1-15A.

[0029] S212: After the ambient temperature of the photovoltaic module rises to a preset temperature and the humidity of the environment rises to a preset humidity, keep it for a first preset time.

[0030] The preset temperature is 70°C-180°C, the preset humidity is 60%RH-95%RH, and the first preset time is 10min-24h.

[0031] S214: Stop energizing the photovoltaic module, and quickly reduce the...

no. 2 example

[0038] see figure 2 , the present embodiment provides a method for testing a photovoltaic module, involving a photovoltaic module, the method comprising:

[0039] S210: Power on the photovoltaic module, increase the temperature of the environment where the photovoltaic module is located, and increase the humidity of the environment where the photovoltaic module is located.

[0040] The photovoltaic module should be coupled with the DC power supply, and the power supply should be controlled on and off through the switch. The current passing through the photovoltaic module is 1-15A.

[0041] S212: After the ambient temperature of the photovoltaic module rises to a preset temperature and the humidity of the environment rises to a preset humidity, keep it for a first preset time.

[0042] The preset temperature is 70°C-180°C, the preset humidity is 60%RH-95%RH, and the first preset time is 10min-24h.

[0043] S214: Stop energizing the photovoltaic module, and quickly reduce th...

no. 3 example

[0056] This embodiment provides a control method, which is used in the method for testing the photovoltaic module 110 in the first embodiment.

[0057] see image 3 and Figure 4 , the control method involves the photovoltaic module 110 , the controller 120 , the environment box 130 and the DC power supply 140 . The photovoltaic module 110 is coupled to the DC power supply 140 , the controller 120 is coupled to the DC power supply 140 , and the controller 120 is coupled to the environmental box 130 . The controller 120 may be an ARM, a single-chip microcomputer, or the like. The photovoltaic module 110 is located in the environment box 130, and the door of the environment box 130 is closed.

[0058] see Figure 5 , the control methods include:

[0059] S310: The controller 120 controls the DC power supply 140 to supply power to the photovoltaic module 110, and controls the environment box 130 to increase the temperature and humidity.

[0060] The current range of the DC ...

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Abstract

The invention provides a photovoltaic module test method and a photovoltaic module control method. In order to power a photovoltaic module, temperature of environment of the photovoltaic module is increased to preset temperature, humidity of environment of the photovoltaic module is increased to preset humidity, and the preset temperature and the preset humidity are kept for a certain time; the temperature of the environment of the photovoltaic module is reduced quickly to indoor temperature which is kept for a certain time. Therefore, aging speed of the photovoltaic module is increased, long-term impact of the natural environment on the photovoltaic module can be simulated in a short time, and whether the photovoltaic module is prone to delaminating or not is observed conveniently.

Description

technical field [0001] The invention relates to the technical field of photovoltaic module testing, in particular to a photovoltaic module testing method and a control method. Background technique [0002] When photovoltaic modules used for solar power generation are used outdoors for a long time, delamination often occurs, leading to attenuation and failure of power generation, which affects the use and promotion of solar cell modules. At present, there is no specific prediction method for delamination of photovoltaic modules, and unqualified products that are easy to delaminate are often mass-produced. Therefore, there is an urgent need for a method for testing whether photovoltaic modules will delaminate during long-term outdoor use. Contents of the invention [0003] In view of this, the purpose of the embodiments of the present invention is to provide a photovoltaic module testing method and control method, which can simulate the long-term impact of the outdoor envir...

Claims

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Application Information

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IPC IPC(8): G05D27/02G05B19/042H02S50/10
CPCG05B19/042G05D27/02H02S50/10Y02E10/50
Inventor 高慧慧孙杰李璐高杨
Owner 江西瑞安新能源有限公司
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