Comparison of Four-Switch Buck-Boost and Dual Active Bridge Converter for DC Microgrid Applications

Attention to DC Microgrids is recently increasing, due to the expansion of DC components, such as renewable energy sources (RESs), energy storage systems (ESSs), and DC loads. There is a large number of scientific publications on different converter topologies, but only a few of them addresses a direct comparison of different DC/DC converter solution for Microgrid applications. This work presents a comparison between Four-Switch Buck-Boost and Dual Active Bridge Converters in terms of applicability to DC Microgrids, considering efficiency and short circuit behavior.