Fuel cell-battery system modelling and system interface construction

This paper describes an interface method to utilize the hybrid system with fuel cell and battery. The hybrid system has unique advantage to manage energy state between high energy system (fuel cell) and high power system (battery) according to various type of load. For proper design, the hybrid system is modelled and simulated by using Simplerer. Interface method is realized by constructing a DC-DC converter, and experiment under various load is performed for verifying the system.