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Optimization of photovoltaic energy production through an efficient switching matrix

Original scientific paper

Journal of Sustainable Development of Energy, Water and Environment Systems
Volume 1, Issue 3, September 2013, pp 227-236
DOI: https://doi.org/10.13044/j.sdewes.2013.01.0017
Pietro Romano , Roberto Candela, Marzia Cardinale, Vincenzo Li Vigni, Domenico Musso, Eleonora Riva Sanseverino
DEIM, University of Palermo

Abstract

This work presents a preliminary study on the implementation of a new system for power output maximization of photovoltaic generators under non-homogeneous conditions. The study evaluates the performance of an efficient switching matrix and the relevant automatic reconfiguration control algorithms. The switching matrix is installed between the PV generator and the inverter, allowing a large number of possible module configurations. PV generator, switching matrix and the intelligent controller have been simulated in Simulink. The proposed reconfiguration system improved the energy extracted by the PV generator under non-uniform solar irradiation conditions. Short calculation times of the proposed control algorithms allow its use in real time applications even where a higher number of PV modules is required.

Keywords: PV systems, Photovoltaic modules, Mismatch, Optimization algorithm, Reconfiguration, MPPT, Dynamic electrical scheme

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