Abstract The Photovoltaic (PV) systems are renewable and environmentally friendly. However, they still have numerous disadvantages such as high investment cost and low efficiency. For getting highest efficiency from a PV system in different operation conditions, PV panels and arrays should be operated at Maximum Power Points (MPPs). At MPP, PV arrays produce the electric energy at maximum efficiency and minimum losses. Some algorithms are used in PV systems to provide maximum efficiency and minimum losses. In this paper, a new ������������ panel model is proposed employing Matlab/Simulink, and three commands of the MPP Tracking (MPPT), are applied in our proposed PV system. These MPPT commands are (P&O), the Incremental Conductance (IC) and the ������������������ based one. Then, a comparative study between these three commands is performed. The simulations results obtained from Matlab/Simulink software, are presented for these approaches under rapid variation of insolation and temperature conditions. Those results confirm the effectiveness of the ANN based command both in terms of efficiency and fast response time and this compared to the two other commands (P&O and IC). Also compared to P& O and IC, negligible oscillations around the MPP is the main advantage of this ANN based command.

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[24] Vergura S., “A Complete and Simplified Datasheet-Based Model of PV Cells in Variable Environmental Conditions for Circuit Simulation,” Energies, vol. 9, no. 5, pp. 1-12, 2016. Mourad Talbi is an Assistant Professor in Electrical Engineering in the Center of Researches and Technologies of Energy of BorjCedria, Tunis, Tunisia. He has obtained his Master degree in automatics and signal processing in National Engineering School of Tunis in 2004. He has obtained his PhD Thesis in Electronics in Faculty of Sciences of Tunis, and his HDR in Electronics in Faculty of sciences of Tunis. Nawel Mensia is an Assistant Professor in Electrical Engineering in the Center of Researches and Technologies of Energy of BorjCedria, Tunis. She received her Ph.D. degree in Electrical engineering from Elmanar Tunis University in 2011. Her research interests include application of advanced control in Photovoltaic systems. Hatem Ezzaouia Postgraduate Degree Physics of solids and Physics of semiconductors - Paris 11 University SUPELEC & CNRS (LPS) in France June 1980. - Doctorate in Physics of solids Paris 11 University & CNRS (LPS) France June 1982. – (HDR) University Habilitation in Physics (Faculté des Sciences de Tunis 1999 Tunisia) Manar University. -Post-Doc at the NATIONAL CENTRE FOR SCIENTIFIC RESEARCH (LPS-CNRS- MEUDONPARIS-FRANCE) from 1982 to 1985. - Assistant at the NATIONAL INSTITUT FOR SCIENTIFIC RESEARCH AND TECHNOLOGIES (INRST) in Tunisia from 1986 to 1989. - Assistant Professor at the INRST from 1989 to 1999. - Full Professor at the INRST from 1999 to 2004. - University Professor at the INRST in 2004. 1999 - 2001 Lab Director of LAS (INRST Solar Applications Laboratory), 2002-2005 Lab Director of LPVS (INRST Photovoltaic Laboratory and Semiconductors), 2006- 2009 Lab Director of LPVSN (Photovoltaic Laboratory Semiconductors and Nanostructures at CRTEn), 2015 Lab Director of LSNTA (Semiconductor Laboratory, Nanostructures And Advanced Technology at CRTEn).