Evaluation method for accelerated aging test of photovoltaic module

An accelerated aging, photovoltaic module technology, applied in photovoltaic modules, photovoltaic power generation, photovoltaic system monitoring and other directions, can solve the problems of unreliable operation life assurance, accelerated aging, etc. Simple and convenient operation
CN107766633AInactive Publication Date: 2018-03-06无锡市产品质量监督检验院 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
无锡市产品质量监督检验院
Publication Date
2018-03-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an evaluation method for the accelerated aging test of a photovoltaic module. The method comprises the following steps that: firstly, according to practical requirements, determining a test factor and level; designing an accelerated aging test scheme, adopting even design to optimize the accelerated aging test scheme to obtain the attenuation test data of photovoltaic module power under different stress combinations; carrying out regression analysis or multivariate regression analysis on the obtained test data; optimizing and verifying an obtained regression equation, and reckoning the power attenuation data of the module under other stress combinations through the obtained regression equation; and extrapolating to obtain the power attenuation data of the module under an outdoor normal operation condition. By use of the method, test cost and test time can be greatly reduced, and a purpose that module ageing is accelerated in short time to achieve the long-term reliability of the evaluation module is fully performed.
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Description

technical field

[0001] The invention relates to a photovoltaic module accelerated aging test evaluation method, which belongs to the technical field of photovoltaic module reliability testing. Background technique

[0002] In recent years, the photovoltaic industry has developed rapidly, and the installed capacity of photovoltaic power generation in the country has continued to increase. At the same time, the reliability of long-term outdoor operation of photovoltaic modules has attracted increasing attention. The photovoltaic system is mainly composed of photovoltaic modules, inverters, photovoltaic brackets, cables, cabinets, monitoring systems, boosting systems, etc. As one of the most important components of the photovoltaic system, photovoltaic modules directly affect the power generation of the photovoltaic system. During the outdoor operation of photovoltaic modules, they are affected by a variety of complex climate and environmental conditions, which lead to power at...

Claims

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