Authors

Hayden Phillips-Brenes, Mauricio Muñoz-Arias, Roberto Pereira-Arroyo, Luis Miguel Esquivel-Sancho, Renato Rimolo-Donadio

Abstract

This article introduces a novel control approach for tackling the maximum power point tracking (MPPT) and output voltage regulation (VR) in photovoltaic (PV) cell systems. Leveraging the port-Hamiltonian (pH) formalism, an energy-based framework known for its physically multidomain modeling and control methodologies, our proposed control law offers promising solutions. Our control design is rooted in an interconnection damping assignment passivity-based strategy, incorporating temperature dependencies of the internal PV cell parameters. To validate the efficacy of our approach, we modeled, implemented, and calibrated a prototype system comprising a PV cell, a dc–dc buck converter, and a dc–dc boost converter that feeds a battery load. The entire setup is designed within the pH framework, ensuring a cohesive integration of energy-based control. To highlight our energy-based strategy’s reliability and performance, we evaluated it against a commercial solar charger under real solar irradiance conditions. Our experimental findings unequivocally demonstrate that the control mechanism employed by the commercial solar charger demands a significantly higher amount of energy and exhibits a premature collapse at lower power levels when compared to our proposed system and control strategy.

Citation

  • Journal: IEEE Transactions on Control Systems Technology
  • Year: 2025
  • Volume: 33
  • Issue: 2
  • Pages: 479–492
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
  • DOI: 10.1109/tcst.2024.3483094

BibTeX

@article{Phillips_Brenes_2025,
  title={{Passivity-Based Control Approach for Photovoltaic DC-DC Conversion and Output Voltage Regulation}},
  volume={33},
  ISSN={2374-0159},
  DOI={10.1109/tcst.2024.3483094},
  number={2},
  journal={IEEE Transactions on Control Systems Technology},
  publisher={Institute of Electrical and Electronics Engineers (IEEE)},
  author={Phillips-Brenes, Hayden and Muñoz-Arias, Mauricio and Pereira-Arroyo, Roberto and Miguel Esquivel-Sancho, Luis and Rimolo-Donadio, Renato},
  year={2025},
  pages={479--492}
}

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References