abstract

• In this paper, a passivity-based control (PBC) scheme for output voltage regulation in a fuel-cell/boost converter system is designed and validated through real-time numerical results. The proposed control scheme is designed as a current-mode control (CMC) scheme with an outer loop (voltage) for voltage regulation and an inner loop (current) for current reference tracking. The inner loop’s design considers the Euler–Lagrange (E-L) formulation to implement a standard PBC and the outer loop is implemented through a standard PI controller. Furthermore, an adaptive law based on immersion and invariance (I&I) theory is designed to enhance the closed-loop system behavior through asymptotic approximation of uncertain parameters such as load and inductor parasitic resistance. The closed-loop system is tested under two scenarios using real-time simulations, where precision and robustness are shown with respect to variations in the fuel cell voltage, load, and output voltage reference.

authors

• Langarica Córdoba Diego

publication date

• 2023-01-01

published in

• Micromachines  Journal

keywords

• Fuel cells, power converters, passivity-based control, parameter estimation

Digital Object Identifier (DOI)

• 10.3390/mi14010187

PubMed ID

start page

• 1

end page

• 20

volume

• 14

issue

• 1