Design for fuel cell/battery in hard and soft hybrid systems

A design for fuel cell/battery in hard and soft hybrid systems including a fuel cell and two batteries, one for charging, another for discharging, based on dc/dc converter is proposed to increase the efficiency of the designed process through systemization. As a result, such hybrid systems design saves a lot of benefits that can be cost effective and extended its duration. Finally, the experiment in the presence of such a hybrid system is shown for verifying.