Abstract
The aim of the present work is to design a robust nonlinear controller which ensures a regulated output voltage for a Proton-Exchange Membrane Fuel Cell (PEMFC) fed interleaved boost DC–DC converter. In this regard, a particle swarm-based optimization algorithm is used for tuning parameters of the nonlinear controller allowing greater flexibility in guaranteeing system specifications compared to the classical Proportional Integral (PI) controller. The effectiveness of the proposed controller for the studied system was validated under various operating conditions of the PEMFC and load perturbations using Sim Power System (SPS) toolbox and MATLAB/Simulink environment. Simulations and comparison of results show that the proposed robust nonlinear controller offers several advantages for smoother tracking, smaller overshoot, faster response and better stability.
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