Methodology for Photovoltaic Modules Characterization and Shading Effects Analysis
AUTOR(ES)
Hecktheuer, L. A., Krenzinger, A., Prieb, C. W. M.
FONTE
Journal of the Brazilian Society of Mechanical Sciences
DATA DE PUBLICAÇÃO
2002-03
RESUMO
This work describes the methodology, basic procedures and instrumental employed by the Solar Energy Laboratory at Universidade Federal do Rio Grande do Sul for the determination of current-voltage characteristic curves of photovoltaic modules. According to this methodology, I-V characteristic curves were acquired for several modules under diverse conditions. The main electrical parameters were determined and the temperature and irradiance influence on photovoltaic modules performance was quantified. It was observed that most of the tested modules presented output power values considerably lower than those specified by the manufacturers. The described hardware allows the testing of modules with open-circuit voltage up to 50 V and short-circuit current up to 8 A.
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