Soft Switched Current Fed Dual Active Bridge Isolated Bidirectional Series Resonant DC-DC Converter for Energy Storage Applications

This paper proposes a high-frequency isolated current-fed dual active bridge bidirectional DC–DC series resonant converter with an inductive filter for energy storage applications, and steady-state analysis of the is carried out. The performance proposed has been compared voltage-fed capacitive output filter. topology operated in continuous conduction mode zero circulation current (ZCC), less stress high efficiency. conditions required soft switching are determined, it found that operates all switches wide variation load input voltage without loss duty cycle. Current-fed converters suitable low-voltage renewable applications because their inherent boosting capability. An chosen to make ideal fast charging high-power-density battery applications. Simple single-phase shift control used switches. studied using PSIM simulation software. These results confirmed by experiment on 135 W OPAL-RT real-time simulator. maximum efficiency obtained 96.31%. Simulation theoretical given comparison table both forward reverse modes operation. A breakdown losses this also presented.