Management and Performance Control Analysis of Hybrid Photovoltaic Energy Storage System under Variable Solar Irradiation

Mohamed Louzazni, Daniel Tudor Cotfas and Petru Adrian Cotfas
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Mohamed Louzazni: National School of Applied Science, Abdelmalek Essaâdi University, Tetouan B.P. 2117, Morocco
Daniel Tudor Cotfas: Department of Electronics and Computers, Transilvania University of Brasov, Eroilor 29, 500036 Brasov, Romania
Petru Adrian Cotfas: Department of Electronics and Computers, Transilvania University of Brasov, Eroilor 29, 500036 Brasov, Romania

Energies, 2020, vol. 13, issue 12, 1-23

Abstract: This paper introduces the management control of a microgrid comprising of photovoltaic panels, battery, supercapacitor, and DC load under variable solar irradiation. The battery is used to store the energy from the photovoltaic panels or to supply the load. The supercapacitor is used to reduce stress on batteries, improve their life cycle, and absorb the fluctuations in the energy produced. The generated photovoltaic power is optimized using Perturb and Observe and Incremental Conductance algorithms to extract the maximum power point tracking. The two algorithms are modified by adding an instantaneous step size to change the direction of the power, so as to reach the maximum power point tracking. The currents of the battery and supercapacitor are managed and controlled using the multi-loop proportional integral controllers. The obtained results show that the multi-loop proportionally integral controllers Perturb and Observe are better than the multi-loop proportional integral controllers Incremental Conductance in terms of stability of injected power. The storage system works perfectly for energy supply, system protection, and fluctuation absorption during the transitions in the solar irradiation. The proposed hybrid storage system can be installed in rural areas as an off-grid system for several uses.

Keywords: photovoltaic panel; solar irradiation; hybrid storage system; control management; maximum power point; optimization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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