Power generation through renewable sources is increasing day by day which needs voltage boosting methods that can enhance the output voltage level for various useful applications. This paper is dedicated to step-up the voltage level of 48 V Proton Exchange Membrane Fuel Cells (PEMFC) system by using the quasi-Z-source (QZS) dc-dc converter-based network as the boosting ability of conventional dc-dc converter is limited. This paper has discussed high voltage gain QZS dc-dc converter and hybrid two & three QZS converter with fuel-cell to enhance voltage level. The MATLAB Simulink software is used to check the feasibility of converters for voltage boosting. The experimental study with result analysis at different duty cycle is performed to validate the Simulink models. The obtained results are compared with one another for verdict the voltage boost up capacity of each converter topology.
Fuel-cell, DC-DC Converters, Quasi Z-Source Network, High Voltage Gain, MATLAB