Design & simulation of bidirectional DC-DC converter for wide voltage variation in discharging mode

The different isolated & non-isolated topology has been broadly utilized for battery charging application. This paper portrays three stage bi-directional battery charger broadly utilized as a part of energy stockpiling application. Dual active bridge configuration is utilized for the high voltage ratings. The bidirectional DC-DC converter are utilized in many applications where the wide output variation is required such as battery charging/discharging applications. Isolated boost converter will lead to component stress and spike due to parasitic capacitance and transformer leakage inductance. The 7.5 kW system with the wide voltage variation in output side for 60V to 310 V bidirectional DC-DC converter has been simulated with simulation tool. Charging mode and discharging mode with energy storing mode has been explained in detail. Results show the effective performance of proposed converter system.