abstract

• This paper describes a double proportional-integral passivity-based control design to coordinate the operation of a proton-exchange membrane fuel cell system supported by two energy storage devices, such as a supercapacitor and a battery. Considering the singular perturbation theory, a timescale separation is applied to decouple the current and voltage dynamics and synthesize two control loops: An inner current loop and an outer voltage loop. Both current and voltage dynamics are controlled by exploiting the passive properties of each subsystem through a simple proportional-integral action over the passive output. The overall control objectives are to ensure load and super-capacitor voltage regulation and smooth variations in fuel cell current despite variations in energy demand. Numerical results demonstrate the correct performance of the closed-loop system despite pulsating variations in energy demand. © 2024 IEEE.

authors

• Cisneros R.
• Escobar G.
• Langarica Córdoba Diego
• Martínez Rodríguez Pánfilo Raymundo

publication date

• 2024-01-01

published in

• 2024 International Symposium on Electromobility, ISEM 2024  Proceedings

keywords

• Battery storage; Capacitor storage; Closed loop control systems; Control system synthesis; Proportional control systems; Two term control systems; Control design; Current dynamics; Currents and voltages; Energy demands; Fuel cell system; Hybrid energy storage systems; Passivity based control; Proportional integral; Proton-exchange membranes fuel cells; Voltage dynamics; Perturbation techniques

Digital Object Identifier (DOI)

• 10.1109/ISEM62699.2024.10786769

PubMed ID

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