This article proposes a new soft-switching solid-state transformer (S4T). The traditional SSTs are typically three-stage, i.e., hard-switching cascaded multilevel rectifiers and inverters with dual active bridge (DAB) converters, which leads to bulky passives, low efficiency, and high electromagnetic interference (EMI). Solid-state transformers (SSTs) are a promising solution photovoltaic (PV), wind, traction, data center, battery energy storage system (BESS), and fast charging electric vehicle (EV) applications. Publication Date: Research Org.: Delta Products Corporation, Research Triangle Park, NC (United States) Delta Products Corporation, Durham, NC (United States) Sponsoring Org.: USDOE Office of Energy Efficiency and Renewable Energy (EERE) Contributing Org.: Virginia Tech OSTI Identifier: 1644192 Alternate Identifier(s): OSTI ID: 1429282 OSTI ID: 1644191 Grant/Contract Number: EE0006834 Resource Type: Accepted Manuscript Journal Name: IEEE Translations on Industrial Electronics Additional Journal Information: Journal Volume: 64 Journal Issue: 11 Journal ID: ISSN 0278-0046 Publisher: IEEE Country of Publication: United States Language: English Subject: 54 ENVIRONMENTAL SCIENCES On-board charger (OBC) power factor correction (PFC) SiC totem pole widebandgap (WBG) zero-voltage switching (ZVS) 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION 42 = , (Virginia Tech), Blacksburg, VA (United States)
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