非晶硅太阳能电池室外运行光谱效应的实验研究

R. Gottschalg, T. Betts, D. Infield, M. J. Kearney
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引用次数: 33

摘要

在非晶硅光伏器件中,光谱变化对光伏输出的影响往往被低估。本文给出了在海洋性气候中有用辐照度的季节变化的数量级,并表明这将涉及效率的直接变化。这可以预期在年平均水平的15%左右,从而解释了季节性表现。光谱效应是通过区分主效应和次效应来研究的。主要效应取决于可用的光谱辐照度,而次要效应也取决于有用范围内光的光谱组成。结果表明,二次效应对双结器件尤为显著。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental investigation of spectral effects on amorphous silicon solar cells in outdoor operation
The effect of varying spectrum on PV output is often underestimated in the case of amorphous silicon photovoltaic devices. This paper gives an indication of the order of magnitude of the seasonal variation of the useful irradiance in a maritime climate and also shows that this will involve a direct change in efficiency. This can be expected to be in the range of 15 percent around the annual average, thus explaining the seasonal performance. The spectral effects are investigated by distinguishing between a primary and a secondary effect. The primary effect is dependent on the availability of useful spectral irradiance while the secondary effect depends also on the spectral composition of the light in the useful range. It is shown that the secondary effect is especially significant for double junction devices.
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