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All Journal International Journal of Applied Power Engineering (IJAPE)
Kaoutar Dahmane
Ibn Zohr University
Electrical & Electronics Engineering

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Enhancing electrolyzer performance for hydrogen production in a solar system using a buck converter with sliding mode control Abdellah El Idrissi; Belkasem Imodane; M’hand Oubella; Hatim Ameziane; Mohamed Benydir; Kaoutar Dahmane; Driss Belkhiri; Mohamed Ajaamoum
International Journal of Applied Power Engineering (IJAPE) Vol 15, No 1: March 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v15.i1.pp69-79

Abstract

As the world increasingly turns to renewable energy, green hydrogen produced through water electrolysis has emerged as a clean and promising alternative to fossil fuels. In this work, we explore a solar-powered hydrogen production system that uses real data from an operational photovoltaic (PV) installation, ensuring accurate and realistic modeling of environmental conditions. A DC-DC buck converter is used to regulate the fluctuating PV output, supplying the precise voltage needed by a PEM electrolyzer. Sliding mode control (SMC) strategy is applied to maintain voltage stability, and its performance is compared with a traditional proportional-integral (PI) controller. Simulations in MATLAB/Simulink demonstrate that SMC offers better dynamic performance, including minimal overshoot, faster response, and an impressive hydrogen production rate of 0.98 L/min (98% efficiency). By providing more consistent voltage to the electrolyzer, SMC significantly boosts overall system performance. These findings underline the potential of advanced control strategies, supported by real-world data, to make renewable hydrogen production more reliable and efficient.
Co-Authors Abdellah El Idrissi Belkasem Imodane Driss Belkhiri Hatim Ameziane Mohamed Ajaamoum Mohamed Benydir M’hand Oubella