Hybrid Backstepping–P&O Control Strategy for Enhanced MPPT in Photovoltaic Systems under Climatic Variations
Fatna BDAIDI, Driss YOUSFI, Ayoub RAHMOUNI
Abstract. A compact hybrid MPPT method for standalone PV systems is proposed in this paper, wherein a slow P&O-based estimator and a fast nonlinear backstepping controller design of the DC–DC boost converter are combined. The reference power is modulated for environmental variations in the P&O stage, and the backstepping loop ensures high-bandwidth, Lyapunov-stable tracking of the operating point. The proposed hybrid architecture is compared to the standalone P&O and to the standalone backstepping and it provides enhancement in steady-state ripple as well as transient performance under irradiance steps. The amount of extracted quantitative performance values from simulation waveforms indicate MPPT efficiency does not fall below 99% under steady condition, faster settling (≈0.15 s after steps) and less ripple compared to classical P&O. The method remains computationally cheap and is made more robust to fast irradiance changes.
Keywords
Photovoltaic Systems, MPPT, Backstepping, Perturb and Observe, Hybrid Control
Published online 4/25/2026, 8 pages
Copyright © 2026 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Fatna BDAIDI, Driss YOUSFI, Ayoub RAHMOUNI, Hybrid Backstepping–P&O Control Strategy for Enhanced MPPT in Photovoltaic Systems under Climatic Variations, Materials Research Proceedings, Vol. 64, pp 115-122, 2026
DOI: https://doi.org/10.21741/9781644904091-15
The article was published as article 15 of the book Energy Futures
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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