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首页> 美国卫生研究院文献>Materials >Performance Degradation Analysis of c-Si PV Modules Mounted on a Concrete Slab under Hot-Humid Conditions Using Electroluminescence Scanning Technique for Potential Utilization in Future Solar Roadways
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Performance Degradation Analysis of c-Si PV Modules Mounted on a Concrete Slab under Hot-Humid Conditions Using Electroluminescence Scanning Technique for Potential Utilization in Future Solar Roadways

机译：使用电致发光扫描技术对未来湿热道路潜在利用的热湿条件下安装在混凝土板上的c-Si光伏组件的性能下降分析

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The stability of the photovoltaic (PV) modules is critical when deployed in a non-ideal environment. Among the different factors, temperature and humidity are the two major factors affecting PV stability, making them significant causes of its degradation in terms of optoelectric and materials properties. Nowadays, with the increase in PV installation (here, we are only taking account of c-Si-based PV modules) to generate green electricity, effective space utilization is an important issue. Recently, people have been considering deploying PV modules on the road to utilize the space available on highways (roadways). This raises several new issues in the deployment of PV modules. However, issues related to temperature and humidity retain the same importance. Normally, these stability tests are performed in a damp-heat (DH) stress-testing chamber in an accelerated condition at 85 °C and 85% relative humidity (RH). In this work, c-Si PV modules were fixed over a concrete slab to prepare a PV interacted block, which can be used to build concrete-based roads. The performance of this PV on the concrete slab was tested in a DH stress-testing chamber in an accelerated condition at 85 °C and 85% RH for 4000 h. For the comparison, a PV module without concrete was also evaluated. The degradation of the PV modules was characterized using the electroluminescence scanning technique. After 2500 h of exposure to the DH conditions, the performance retention of the PV modules mounted on the concrete was 93.2%, which was nearly 5% higher than the module without the concrete slab.
机译：在非理想环境中部署时，光伏（PV）模块的稳定性至关重要。在不同的因素中，温度和湿度是影响PV稳定性的两个主要因素，这使其成为光电和材料性能下降的重要原因。如今，随着光伏装置的增加（此处我们仅考虑基于c-Si的光伏模块）来产生绿色电力，有效利用空间已成为一个重要问题。最近，人们一直在考虑在道路上部署光伏模块，以利用高速公路上的可用空间。这在光伏模块的部署中提出了几个新问题。但是，与温度和湿度有关的问题仍然具有相同的重要性。通常，这些稳定性测试是在湿热（DH）应力测试室内以加速条件在85°C和85％相对湿度（RH）下进行的。在这项工作中，将c-Si光伏组件固定在混凝土板上，以准备与PV相互作用的模块，该模块可用于建造混凝土路面。在DH应力测试室中，在85°C和85％RH的加速条件下，在4000 h下测试了该PV在混凝土板上的性能。为了进行比较，还评估了没有混凝土的光伏组件。使用电致发光扫描技术表征了PV模块的降解。在DH条件下暴露2500小时后，安装在混凝土上的PV组件的性能保持率为93.2％，比没有混凝土板的组件高出近5％。

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