Modelling and Passivity-Based Control of a Non Isolated DC-DC Converter in a Fuel Cell System

Moutabir Ahmed, Abdelmounim Elhassane, Aboulfatah Mohamed

Abstract


This paper presents the model of a fuel cell and the design and simulation of a cascade of two DC-DC converters. First, a detailed mathematical model of fuel cell is presented and simulated. Then, a nonlinear model of the whole controlled system is developed and a robust nonlinear controller of currents is synthesized using a passivity-based control. A formal analysis based on Lyapunov stability and average theory is developed to describe the control currents loops performances. A classical PI controller is used for the voltages loops. The simulation models have been developed and tested in the MATLAB / SIMULINK. Simulated results are displayed to validate the feasibility and the effectiveness of the proposed strategy.

Keywords


Cascaded boost; Euler Lagrange; Fuel cell; Lyapunov; Passivity-based control

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DOI: http://doi.org/10.11591/ijra.v7i3.pp197-204

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