Applicability of One-Diode Circuit Model to a PV Module in Real Environmental Conditions of Temperature, Air Mass, UV and Global Radiation

Santos, Hernani S., Santos, Lorena C. T.L., Silva, Pedro R., Batista, Ana P. and Jota, Patrícia R. S.



The prediction of energy converted into electricity by a solar panel is an important issue in the global context of expansion of the photovoltaic (PV) market. Although the general complexity of such predictions, PV systems boast in the simplicity of its modelling, made possible by means of the single-diode model. By this work a deeper comprehension of the relationship between the local solar ultraviolet (UV) radiation and the air mass (AM) with the current and power production of a PV panel, is achieved. The simple approach yielded by the model considers only datasheet parameters for forecasting the energy production of such a panel under the reference spectra, ASTM G173-03, which is not often found in the majority of the PV installations worldwide. Hence, the discussion provided by this paper aims to evaluate the influence of UV and AM on the energy production, and the possible usage of these variables on the referred single diode model.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ, Nº. 16)
Pages: 286-291 Date of Publication: 2018/04/20
ISSN: 2172-038X Date of Current Version:2018/03/23
REF: 287-18 Issue Date: April 2018
DOI:10.24084/repqj16.287 Publisher: EA4EPQ

Authors and affiliations

Santos, Hernani S.2, Santos, Lorena C. T.L.2, Silva, Pedro R.2, Batista, Ana P.1and Jota, Patrícia R. S.1
1. Department of Electrical Engineering, CEFET-MG Campus II . Belo Horizonte (Brazil)
2. Centro de Pesquisa em Energia Inteligente (CPEI) Campus II . Belo Horizonte (Brazil)

Key words

PV panel, one-diode model, spectral variations, air mass, UV radiation.


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