利用多波段(光谱分辨)卫星图像分析反照率辐照度

2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC) Pub Date : 2018-06-01 DOI:10.1109/PVSC.2018.8547447

I. Cole, T. Betts

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引用次数: 0

摘要

卫星图像采集系统和数据可用性的进步为太阳辐照度分析提供了令人兴奋的机会，特别是在考虑双面光伏组件时，反照率辐照度成为重要的能量收获贡献者。本文展示了一种利用多波段(光谱分辨)卫星图像评估广域反照率辐照度的方法。使用0.75 km2区域的10波段多光谱图像样本，像素分辨率为0.25 m2，以演示光谱反射的局域性和上下文性质。将光谱反射数据与硅光谱响应曲线相结合，发现样品区反射转换效率的变化幅度为30%。平均光子能量的变化约为0.05 eV，整个样品区域的光谱有30%的额外反射贡献。

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Analysis of Albedo Irradiance Utilizing Multiband (Spectrally Resolved) Satellite Imagery

Advances in satellite image acquisition systems and data availability present exciting opportunities for solar irradiance analysis, especially regarding albedo irradiance which becomes a significant energy harvest contributor when considering bifacial PV modules. This paper demonstrates a methodology for wide area albedo irradiance assessment using multiband (spectrally resolved) satellite imagery. A sample 10-band multispectral image of a 0.75 km2 region with a pixel resolution of 0.25 m2 is used to demonstrate the localized, contextual nature of spectral reflections. Combining spectral reflection data with silicon spectral response curves shows variations in the sample region of 30% in reflected conversion efficiencies. Variations in average photon energy of approximately 0.05 eV are found across the sample region for spectra with 30% additional reflected contributions.

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来源期刊

2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC)

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