Passive and Active Thermographic Assessment as a Tool for Condition-Based Performance Monitoring of Photovoltaic Modules
Passive and Active Thermographic Assessment as a Tool for Condition-Based Performance Monitoring of Photovoltaic Modules
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DOI：
10.1115/1.4003731
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发表时间：
2011-05
影响因子：
2.3
通讯作者：
J. A. Tsanakas;P. Botsaris
中科院分区：
文献类型：
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作者：
J. A. Tsanakas;P. Botsaris
今天，确保光伏(PV)系统的高效运行无疑是一个重大问题。在这个方向上，这项工作的范围是评估红外热像仪作为光伏组件的状态监测，以及随后的性能评估方法。这个想法是基于这样一个事实，即被检查设备的温度模式的任何异常都意味着功能障碍。特别是，特定的热图测量被应用于已知异常低性能的光伏组件。在对采集的热像进行基本处理后，将提取的温度数据与光伏组件的预期工作温度进行对比。测试结果证实了有问题的太阳能电池的存在，该电池指的是被测试的光伏组件中的“热点”。本文最后通过对光伏组件的性能评估，讨论了这些方法的优点、局限性，以及最终作为可靠的状态监测方法的潜力。
Today, to ensure efficient operation of a photovoltaic (PV) system renders as an undoubtedly major concern. Toward this direction, scope of this work is the assessment of infrared thermography as a PV module's condition monitoring and, subsequently, performance evaluation method. The idea is based on the fact that any abnormality to the temperature pattern of an under inspection equipment implies a dysfunction case. In particular, specific thermographic measurements were applied to a PV module with known, abnormally low performance. Following the basic processing of the acquired thermal images, the extracted temperature data were contrasted with the PV module's expected operating temperature. The results validated the presence of a problematic solar cell that refers to a "hot spot" within the tested PV module. This paper concludes with a discussion regarding the advantages, the limitations, and, ultimately, the potentiality of the intended approaches as reliable condition monitoring method through performance evaluation of PV modules.