On the impact of solar spectral irradiance on the yield of different PV technologies
On the impact of solar spectral irradiance on the yield of different PV technologies
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DOI：
10.1016/j.solmat.2014.09.034
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发表时间：
2015-01-01
影响因子：
6.9
通讯作者：
Reise, Christian
中科院分区：
文献类型：
--
作者：
Dirnberger, Daniela;Blackburn, Gina;Reise, Christian
本文介绍了研究不同光谱辐照度对不同光伏技术性能的影响的结果。使用2010年6月1日至2013年12月31日在德国弗赖堡im Breisgau测量的光谱辐照度，对具有不同带隙的五种典型光伏技术的相对增益或损失进行了量化。利用光谱分辨数据，使用光谱失配因子计算每种技术有效的年度辐射，并与总日照强度计测量的总宽带辐射进行比较。用于计算光谱影响的过程产生的结果可以直接用于估计有效可用的辐照，以进行产量预测或能量评级。非晶硅的年光谱影响为+3.4%，碲化镉为+2.4%，晶体硅为+1.4%，高效晶体硅为+1.1%，小带隙CIGS为+0.6%。具有大带隙的技术在夏季表现出光谱增益，在冬季表现出光谱损失，反之亦然，对于小带隙技术。结果进行了讨论和解释，考虑到不确定性和迄今公布的结果。此外，还研究了平均光子能量（APE）在多大程度上可以用作光谱影响的定量指标。总之，发现使用APE与使用光谱失配因子相比并没有实际优势，应用于定性评价而不是定量评价。(C)2014爱思唯尔有限公司版权所有。
This article presents results from investigating the impact of varying spectral irradiance on the performance of different PV technologies. Relative gains or losses were quantified for five typical PV technologies with different band gaps and, consequently, different spectral responses using spectral irradiance measured from 01.06.2010 to 31.12.2013 in Freiburg im Breisgau, Germany. With the spectrally resolved data, the effectively available annual irradiation per technology was calculated using the spectral mismatch factor, and compared to the total broadband irradiation measured by a pyranometer. The process used to calculate the spectral impact produces a result that can directly be used to estimate the effectively available irradiation for yield prediction or energy rating. The annual spectral impact was +3.4% for amorphous silicon, +2.4% for cadmium telluride, +1.4% for crystalline silicon, +1.1% for high-efficiency crystalline silicon and +0.6% for small-band-gap CIGS. Technologies with a large band gap exhibited spectral gains in summer and spectral losses in winter, and vice versa for small-band-gap technologies. The results are discussed and interpreted with consideration to uncertainties and results published so far. Furthermore, it was investigated in how far average photon energy (APE) can be used as a quantitative indicator for the spectral impact. In summary, it was found that using APE does not present actual advantages over using the spectral mismatch factor, and should rather be used for qualitative than for quantitative evaluations. (C) 2014 Elsevier B.V. All rights reserved.