A Boost-Full-Bridge-Type Single-Active-Bridge Isolated AC-DC Converter

Yitong Li, Adrià Junyent-Ferré, Paul D. Judge

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A boost-full-bridge (BFB) concept is proposed in this paper. It improves the control dynamics of boost-half-bridge (BHB) converters, and makes the converters feasible for dc-dc applications as well as ac-dc. A BFB-type single-active-bridge (SAB) ac-dc converter is proposed and investigated in this paper, as an example case from the BFB family of topologies for the validation of the BFB concept. The proposed converter topology has high power density and galvanic isolation, thanks to its high-frequency (HF) transformer link. It also features dc-side short-circuit fault-blocking capability. This paper analyzes the operation principles of the converter and presents suitable modulation and controller schemes. Experiment results are also provided to demonstrate the start-up dynamics, steady-state waveforms, and the dc-fault-blocking capability of the converter.
Original languageUndefined/Unknown
Title of host publication2019 IEEE Applied Power Electronics Conference (APEC)
Number of pages1
DOIs
Publication statusPublished - 1 Mar 2019

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