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首页> 外文会议>European Photovoltaic Solar Energy Conference and Exhibition >EDDY-CURRENT ANALYSIS METHOD FOR NON-DESTRUCTIVE CHARACTERIZATION OF ELECTRICAL CONTACTS AND SOLDER JOINTS IN PV MODULES
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EDDY-CURRENT ANALYSIS METHOD FOR NON-DESTRUCTIVE CHARACTERIZATION OF ELECTRICAL CONTACTS AND SOLDER JOINTS IN PV MODULES

机译：用于PV模块中的电触点和焊点的非破坏性表征的涡流分析方法

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摘要

According to latest studies, cell and interconnection failures are to most common ones besides backsheet and encapsulation issues in PV modules. Solder joints within the module, which are not meeting the target quality, often lead to major issues after aging, comprising burn marks, hotspots, arcing discharges and of course substantial power losses. Besides security and safety issues, such age-related effects can lead to major financial losses for manufacturers, investors and plant owners. Within the Austrian flagship project "Sustainable Photovoltaics", a nondestructive method was developed for analyzing the quality of solder joints in PV modules (on site & in production line) using a multi frequency eddy current approach. With the presented solution the conductivity of each solder joint can be analyzed, enabling the possibility of early failure detection, and hence initiating possible repair approaches. Measurement results show that the calculated state or conductivity decrease of aged solder joints can be successfully correlated to electroluminescence (EL) images. This enables a solder joint quality analysis without, unlike EL, directly powering the PV module.
机译：根据最新的研究，细胞和互连故障是除了在光伏组件背板和封装问题，最常见的原因。焊接模块内的关节，这是不符合目标质量，往往会导致重大问题老化，包括烧痕，热点，电弧放电之后，当然还有大量的功率损耗。除了安全性和安全性的问题，例如年龄相关作用会导致制造商，投资者和工厂业主重大的经济损失。内奥主打项目“可持续光伏”，非破坏性方法，用于分析在PV模块焊点的质量（在现场＆在生产线），使用多频涡流方法开发。与所呈现的解决方案每个焊点的导电性可以被分析，使得能够早期故障检测的可能性，并且因此发起可能修复方法。测量结果表明，老化焊点的计算的状态或电导率降低可被成功地关联到电致发光（EL）的图像。这使得没有一个焊点质量分析，不像EL，直接供电的PV模块。

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