PV coating abrasion by cleaning machines in desert environments-measurement techniques and test conditions
PV coating abrasion by cleaning machines in desert environments-measurement techniques and test conditions
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DOI：
10.1016/j.solener.2021.07.039
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发表时间：
2021-07-23
期刊：
影响因子：
6.7
通讯作者：
Bermudez, Veronica
中科院分区：
文献类型：
--
作者：
Figgis, Benjamin;Bermudez, Veronica
随着光伏清洁机在沙漠地区的广泛应用，人们担心频繁的干刷可能会磨损模块的抗反射涂层（ARC）。通常通过加速实验室测试来研究ARC磨损，这些测试在样品格式、测试条件和表征工具方面通常与真实世界的PV清洁不同。本文综述了PV ARC清洗磨损的研究，重点是实验室和现场之间的实验技术的差异。主要结论如下：（1）由于涂层特性依赖于样品尺寸，因此试样测试应该用全尺寸模块进行验证，（2）实验室测试应该在户外用非加速清洁计划进行验证，因为磨损主要是由刷涂时的污染层本身引起的，（3）反射率非常适合测量ARC磨损，因为它可以在现场进行，并且与模块光学性能相当一致，（4）不同的ARC表现出宽范围的磨损敏感性，而裸玻璃基本上不受干刷的影响。
As PV cleaning machines become widely adopted in desert regions, there is concern that frequent dry-brushing might abrade modules' anti-reflective coating (ARC). It is common to study ARC abrasion via accelerated lab tests, which typically differ from real-world PV cleaning regarding sample format, test conditions and characterization tools. This paper reviews research on PV ARC cleaning abrasion, focusing on differences in experimental techniques between the lab and field. The main conclusions are: (1) coupon tests should be verified with full-size modules due to dependence of coating properties on sample size, (2) lab tests should be verified outdoors with non-accelerated cleaning schedules because abrasion is largely caused by the soiling layer itself when brushing, (3) reflectivity is well suited to measuring ARC abrasion because it can be performed in the field and is reasonably consistent with module optical performance, (4) different ARCs exhibit a wide range of abrasion susceptibility whereas bare glass is essentially immune to dry brushing.