An enhanced control strategy for photovoltaic system control based on sliding mode-PI regulator

Adel Bouchahed, Abdelfettah Boussaid (), Fatah Mekhloufi, Ahmed Belhani and Ali Belhamra
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Adel Bouchahed: Institut des Sciences et des Techniques Appliquées
Abdelfettah Boussaid: Institut des Sciences et des Techniques Appliquées
Fatah Mekhloufi: Institut des Sciences et des Techniques Appliquées
Ahmed Belhani: Université Constantine 1, Frères Mentouri
Ali Belhamra: Université Badji Mokhtar Annaba 1

International Journal of System Assurance Engineering and Management, 2024, vol. 15, issue 10, No 2, 4658-4667

Abstract: Abstract This article presents a modeling study and a control approach of photovoltaic system to provide continuous electrical energy at its output and feds a DC–DC booster converter. The last mentioned converter also provides a variable DC voltage applied directly across the terminals of a resistive load. In order to ensure a high static performance control for the different characteristics of the photovoltaic system. This study deals with three control strategies for the DC–DC boost converter; the first one is based on the maximum power point tracking (MPPT). Secondly, the authors move to the control technique based on proportional-integral (PI) regulator. At the end, a combination between the sliding mode strategies with the PI regulator is presented and discussed. The main purpose of these strategies is to obtain the best characteristics of the photovoltaic system so that it operates around the maximum power point with less oscillation, overtaking as well as a high stability for the different PV’s system characteristics when the solar irradiance changes. The obtained results show the effectiveness of the proposed algorithm in controlling the Photovoltaic system under different conditions in comparison to other strategies.The PV system is associated to the DC–DC boost converter where it is subjected to a variable irradiance between [200 and 1000] $$\text{w}\ /\text{m}^2$$ w / m 2 and a constant temperature equal to 250 C, The DC voltage $$V_{dc}$$ V dc characteristics and the currents $$I_{dc}$$ I dc are obtained with a sampling time $$T_{e} = 0.1$$ T e = 0.1 s and a simulation time $$T_{s} = 0.5$$ T s = 0.5 s. The hybrid $$P \& O-MPPT$$ P & O - M P P T $$SMC-PI$$ S M C - P I control technique gives better results than the two other strategies in terms of stability.

Keywords: Photovoltaic panel; Boost DC–DC converter; P&O MPPT; PI regulator; Sliding Mode Control; PWM command (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s13198-024-02362-3

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