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The advancements in wide-band-gap (WBG) devices are enabling applications of power electronics converters coupled directly to medium voltage and incorporating galvanic insulation within the converter using high-frequency solid-state transformers. This paper presents the design and the characterization results of a SiC H-bridge converter suitable for up to 100 kVA single-phase ac-dc modular solid-state...
The characteristics and losses of 10-kV SiC MOSFETs, p-IGBTs and emitter turn-off thyristors (ETOs) were compared using the experimental measurements, PSPICE simulations and numerical simulations. Using the extracted loss information and method of loss calculation in the AC/DC rectifier and DC/DC converter, the frequency capability of these 10-kV SiC power devices in a 20 kVA solid-state transformer...
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