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This work presents a comprehensive cost-aware comparison of isolated bidirectional Si and SiC dual-active-bridge (DAB) concepts for a 5-kW 100–700-V input voltage range dc microgrid application. A conventional three-level DAB (3LDAB) is compared to an advanced five-level DAB (5LDAB) topology, where the latter enables reduced rms currents within the given voltage range. Both concepts employ a loss-optimized...
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