Numerical Experimental Validation of a Proposed MPPT Algorithm with Dynamic Hysteresis for PV Systems Nubia Ilia Ponce de León Puig, Leonardo Acho and José Rodellar   2019/07/15

Abstract

In the last decades, the renewable energies have had a highly positive effect on the daily life. This due to the necessity of reducing the common fuel energies that have negatively impacted the environment. Among all the available renewable energies, the solar energy is one of the most common. This energy is obtained through Photovoltaic (PV) systems. Thus, in previous years, new
techniques of Maximum Power Point Tracking (MPPT) to raise the quality of the energy provided by PV panels have been proposed. Since the energy provided by the PV cells depends on the external
environmental conditions, as temperature or sun irradiance, the MPPT methods should be adequate to deal with these external changes by maintaining the desired power level. Hence, this paper
proposes a recent hysteretic dynamic technique to extract the maximum power from a PV panel array by employing a Boost DC/DC converter to supply energy to an inductive load. Here, a comparative study between the results obtained with the well known Perturb and Observer (P&O) algorithm and by using our dynamic hysteretic MPPT method is analyzed, specifically when the PV panel is submitted to fast variations in temperature and irradiance. It will be proved through numerical experiments realized in MatLab/Simulink that our hysteretic MPPT algorithm provides
a better achievement of the maximum power of the PV panel in comparison to the conventional Perturb and Observer method.

Authors and affiliations

Nubia Ilia Ponce de León Puig, Leonardo Acho and José Rodellar
Universitat Polit`ecnica de Catalunya, Department of Mathematics, Escola d’Enginyeria Est-EEBE, CoDAlab.
Barcelona, Spain.

Key words

Photovoltaic panel, maximum power point tracking, dynamic hysteresis model, DC/DC converters, power quality.

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