Direct Power Control for Three-Level Multifunctional Voltage Source Inverter of PV Systems Using a Simplified Super-Twisting Algorithm

Naamane Debdouche, Brahim Deffaf, Habib Benbouhenni (), Zarour Laid and Mohamed I. Mosaad ()
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Naamane Debdouche: Laboratory of Electrical Constantine, Department of Electrical Engineering, University of Constantine 1, 325 Route Ain el Bey, Constantine 25000, Algeria
Brahim Deffaf: Laboratory of Renewable Energies Mastering, Department of Electrical Engineering, Faculty of Technology, University of Bejaia, Bejaia 06000, Algeria
Habib Benbouhenni: Faculty of Engineering and Architecture, Department of Electrical & Electronics Engineering, Nisantasi University, 34481742 Istanbul, Turkey
Zarour Laid: Laboratory of Electrical Constantine, Department of Electrical Engineering, University of Constantine 1, 325 Route Ain el Bey, Constantine 25000, Algeria
Mohamed I. Mosaad: Electrical & Electronics Engineering Technology Department, Yanbu Industrial College (YIC), Royal Commission Yanbu Colleges & Institutes, Alnahdah, Yanbu Al Sinaiyah, Yanbu 46452, Saudi Arabia

Energies, 2023, vol. 16, issue 10, 1-32

Abstract: This study proposes a simplified super-twisting algorithm (SSTA) control strategy for improving the power quality of grid-connected photovoltaic (PV) power systems. Some quality issues are considered in this study including the power factor, reducing the total harmonic distortion (THD) of current, compensating the reactive power, and injecting at the same time the energy supplied by the PV system into the grid considering non-linear load. This improvement is achieved by two topologies; controlling both the boost DC–DC converter and the DC–AC inverter that links the PV system to the grid. The DC–DC converter is controlled using proportional-integral (PI) and SSTA to maximize the power generated from the PV panel regardless of its normal and abnormal conditions, while the DC–AC inverter is employed to direct power control strategy with modified space vector modulation using the phase-locked loop (PLL) technique of a three-level neutral-point-clamped (NPC) inverter based on the proposed strategies (PI and SSTA). In addition, a shunt active power filter (SAPF) is used to connect the PV system to the AC grid and feed a non-linear load. To validate the simulation results presented in this paper using Matlab software, a comparative study between the PI controller and the SSTA is presented. The results show the effectiveness and moderation of the suggested SSTA technique in terms of feasibility, tracking performance, less power ripple, dynamic response, THD value, overshoot, steady-state error, and robustness under varying irradiation, temperature, and non-linear conditions.

Keywords: simplified super-twisting algorithm; PV system; maximum power point tracking; direct power control; space vector modulation; neutral-point-clamped (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: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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