Experimental Insights into the MW Range Dual Active Bridge with Silicon Carbide Devices

Alongside the resonant topology of the Power Electronics Transformer, the Dual Active Bridge is one potential topology candidate for various LVDC and MVDC applications. For its study purpose, a 0.55 MW converter unit was built featuring the latest inhouse developed Medium Frequency Transformer operated by SiC LinPak semi-conductor devices. Main interest focusses on maximizing its efficiency in various operating points. The converter is experimentally demonstrated with two cells operated in back-to-back configuration.