Bidirectional Dual Active Bridge for Interfacing Battery Energy Storage Systems with DC Microgrid

This paper describes the design of a dual active bridge (DAB) DC-DC converter for DC microgrid applications. The converter is utilized to interface a battery storage system with the DC microgrid. A control scheme that allows the converter to charge a lithium-ion battery using different charging protocols is demonstrated. Moreover, the bidirectional power flow capability of the converter is verified. The designed converter is simulated using PSIM and several operational scenarios are studied.