4.7 Article

High efficiency power electronic converter for fuel cell system application

期刊

AIN SHAMS ENGINEERING JOURNAL
卷 12, 期 3, 页码 2655-2664

出版社

ELSEVIER
DOI: 10.1016/j.asej.2021.01.010

关键词

Fuel cell; Buck boost converter; Maximum power; Voltage regulation; Interleaved boost converter

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This paper discusses the efficiency of two power electronic converters connected in cascade to maximize power output from a fuel cell and regulate load voltage. An interleaved boost converter is used to minimize fuel cell voltage ripples and determine the optimum duty cycle for power generation, controlled through Maximum Power Point Tracking. A buck boost converter with Proportional Integral controller is proposed for load voltage regulation, resulting in improved system efficiency and robustness through simulation validation.
This paper discusses the efficiency of two power electronic converters connected in cascade in aim to generate the maximum power from the fuel cell and regulate the load voltage under different working conditions and load variations. The first converter is an interleaved boost proposed to minimize the fuel cell voltage ripples and determine the optimum duty cycle to generate the maximum of power. Thereafter, the control of this converter is performed through a Maximum Power Point Tracking approach. To meet the load requirements in terms of voltage regulation, a buck boost converter controlled with a Proportional Integral controller is proposed. This configuration allows generating the optimal power and regulating the load voltage at the same time. The both converters are simulated under Matlab-Simulink to validate the robustness and the efficiency of this new design. Obtained results show the robustness of the new design approach and efficiency improvement of the system. (c) 2021 THE AUTHORS. Published by Elsevier BV on behalf of Faculty of Engineering, Ain Shams University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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