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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Sankar, Yannam Ravi
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Control & Systems Engineering Electrical & Electronics Engineering

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Hybrid PV/fuel cell based system using integrated SEPIC-Cuk converter with crow search optimized PI controller Sankar, Yannam Ravi; Sekhar, Koritala Chandra
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 15, No 3: September 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v15.i3.pp1726-1738

Abstract

The study investigates a micro grid incorporating photovoltaic (PV), fuel cell and battery systems with an optimized proportional integral (PI) controller. A PV system serves as the primary green energy source, while a fuel cell acts as a supplementary source to compensate for power fluctuations. A single ended primary inductance converter (SEPIC) integrated Cuk converter boosts PV system's DC output voltage, controlled by a crow search-optimized PI (CS-PI) controller. A PI controller controls the fuel cell's minimum DC output voltage, which is raised by a boost converter to produce a controlled output. The proposed converter demonstrates robust performance across varying operational conditions with a reduced settling time of 0.9 s and an efficiency of 96.2%. A bidirectional converter links the battery to the grid, facilitating energy transfer in both directions and accommodating boost and buck operating characteristics thereby maintaining a state-of-charge (SOC) of 60%. This study employs MATLAB to establish effective PV-fuel storage control approaches, optimize energy extraction, and ensure steady power for a grid-connected system.
Co-Authors Sekhar, Koritala Chandra