Improving the spectral correction function
Improving the spectral correction function
复制标题
改进光谱校正功能
DOI：
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复制
发表时间：
2016
期刊：
影响因子：
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通讯作者：
C. Fell
中科院分区：
文献类型：
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作者：
B. Duck;C. Fell
从常见测量源得出的阵列辐照度平面通常不能直接应用于光伏系统发电量建模。由于辐照度测量仪器（通常是高温计或参考电池）与已安装系统的光谱和角度响应存在差异，因此需要对有效辐照度值进行修正。基于易于测量的参数提供这种校正的经验方法很有吸引力，因为它们实现简单，并且能够定制解决方案以适应所研究的系统。不幸的是，校正光谱和入射角的最常见方法不能充分捕获非理想条件下的性能。在这里，我们证明，对于硅模块，结合空气质量和清晰度指数的改进表面函数能够用作光谱失配的独立于地点的测量。对可沉淀水进行校正后，从应用于碲化镉模块的程序中获得相同的结果。
Plane of array irradiance derived from common measurement sources is not usually directly applicable in modelling the energy yield of photovoltaic systems. Corrections to an effective irradiance value are required due to the differences in the spectral and angular response of irradiance measurement instruments (typically pyronometers or reference cells) when compared to the installed system. Empirical methods to provide this correction based on easily measured parameters are attractive both because of the simplicity of their implementation and the ability to tailor the solution to fit the system under study. Unfortunately the most common methods to correct for spectrum and angle of incidence do not adequately capture performance under non-ideal conditions. Here we demonstrate that for silicon modules an improved surface function combining air mass and clearness index is capable of being used as a site independent measure of spectral mismatch. Following a correction for precipitable water the same result is obtained from the procedure applied to cadmium telluride modules.