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Shading Ratio Impact on Photovoltaic Modules and Correlation with Shading Patterns

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  • Alonso Gutiérrez Galeano

    (Department of Electrical and Electronic Engineering, Universidad de los Andes, Bogotá 111711, Colombia
    Doctoral School GEET, Université Toulouse III, F-31400 Toulouse, France)

  • Michael Bressan

    (Department of Electrical and Electronic Engineering, Universidad de los Andes, Bogotá 111711, Colombia)

  • Fernando Jiménez Vargas

    (Department of Electrical and Electronic Engineering, Universidad de los Andes, Bogotá 111711, Colombia
    LAAS-CNRS, 7 Avenue du Colonel Roche, F-31077 Toulouse, France)

  • Corinne Alonso

    (Doctoral School GEET, Université Toulouse III, F-31400 Toulouse, France
    LAAS-CNRS, 7 Avenue du Colonel Roche, F-31077 Toulouse, France)

Abstract

This paper presents the study of a simplified approach to model and analyze the performance of partially shaded photovoltaic modules using the shading ratio. This approach integrates the characteristics of shaded area and shadow opacity into the photovoltaic cell model. The studied methodology is intended to improve the description of shaded photovoltaic systems by specifying an experimental procedure to quantify the shadow impact. Furthermore, with the help of image processing, the analysis of the shading ratio provides a set of rules useful for predicting the current–voltage behavior and the maximum power points of shaded photovoltaic modules. This correlation of the shading ratio and shading patterns can contribute to the supervision of actual photovoltaic installations. The experimental results validate the proposed approach in monocrystalline and polycrystalline technologies of solar panels.

Suggested Citation

  • Alonso Gutiérrez Galeano & Michael Bressan & Fernando Jiménez Vargas & Corinne Alonso, 2018. "Shading Ratio Impact on Photovoltaic Modules and Correlation with Shading Patterns," Energies, MDPI, vol. 11(4), pages 1-26, April.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:4:p:852-:d:139706
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    References listed on IDEAS

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