Modeling and control of a portable proton exchange membrane fuel cell-battery power system

► In this study, we developed a set of system-level model for a portable PEM fuel cell-battery system. ► This model can be used as a platform to optimize system design. ► A portable PEM fuel cell-battery power system with microcontroller has been built to demonstrate the functions of a PEM fuel cell power system. ► Also this system has been used to validate the system modeling and control algorithm.