Dynamic performance and control of a fuel cell power conditioning system with multilevel converter

In this paper, the dynamic performance of a proton exchange membrane (PEM) fuel cell power conditioning system with multilevel converter using reduced number of switches is presented. All auxiliary components need to be controlled for optimum operation of fuel cell when the system experiences varying load and voltage changes. The dynamic performance of the system is examined by three conditions including reference voltage variation, load variation and with non linear load. Dynamic performance of a PEM fuel cell system by simulation using Matlab/simulink is investigated. The simulation results for variation of reference voltage, load variation and with non linear load are presented. Based on these results obtained a suitable power conditioning system as well as a controller can be designed for efficient operation of PEM fuel cell.