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Appl. Sci. 2017, 7(8), 842; doi:10.3390/app7080842

Spectral Correction of CPV Modules Equipped with GaInP/GaInAs/Ge Solar Cells and Fresnel Lenses

1
PV Technology Laboratory, FOSS Research Centre for Sustainable Energy, Department of Electrical and Computer Engineering, University of Cyprus, Nicosia 1678, Cyprus
2
Centre for Advanced Studies on Energy and Environment (CEAEMA), IDEA Solar Energy Research Group, Electronics and Automation Engineering Department, University of Jaén, Las Lagunillas Campus, 23071 Jaén, Spain
*
Author to whom correspondence should be addressed.
Received: 24 July 2017 / Revised: 10 August 2017 / Accepted: 11 August 2017 / Published: 16 August 2017
(This article belongs to the Special Issue Renewable Energy 2018)
View Full-Text   |   Download PDF [804 KB, uploaded 16 August 2017]   |  

Abstract

Photovoltaic (PV) devices are spectrally selective, and their performance is influenced by unavoidable spectral variations. In addition, multijunction-based concentrating photovoltaic (CPV) devices show a strong spectral dependence due to the series connection of various junctions with different absorption bands, and also due to the use of concentrator optics. In this work, the accuracy of a new set of analytical equations that quantify the spectral impact caused by the changes in air mass (AM), aerosol optical depth (AOD) and precipitable water (PW) is discussed. Four different CPV devices based on lattice-matched and metamorphic triple-junction solar cells and a poly(methyl methacrylate) (PMMA) and silicon-on-glass (SoG) Fresnel lenses are considered. A long-term outdoor experimental campaign was carried out at the Centre for Advanced Studies on Energy and Environment (CEAEMA) of the University of Jaén, Spain. Results show a high accuracy in the estimations of the spectral factor (SF), with an average mean absolute percentage error (MAPE) within 0.91% and a mean relative error (MRE) within −0.32%. View Full-Text
Keywords: concentrating photovoltaics; triple-junction solar cells; spectral corrections; air mass; aerosol optical depth; precipitable water; analytical equations concentrating photovoltaics; triple-junction solar cells; spectral corrections; air mass; aerosol optical depth; precipitable water; analytical equations
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Theristis, M.; Fernández, E.F.; Almonacid, F.; Georghiou, G.E. Spectral Correction of CPV Modules Equipped with GaInP/GaInAs/Ge Solar Cells and Fresnel Lenses. Appl. Sci. 2017, 7, 842.

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