Smooth reversal of power transfer for ZVS bidirectional four-switch buck-boost converter

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Pages (from-to)600-609
Number of pages10
Journal / PublicationIEEE Transactions on Industrial Electronics
Volume72
Issue number1
Online published15 Jul 2024
Publication statusPublished - Jan 2025

Abstract

Bidirectional dc–dc converters have found wide applications in renewable energy generation systems, residential energy storage systems, and electric vehicles. The four-switch buck-boost (FSBB) converter features low voltage stress on power switches, positive output, and bidirectional power transfer. In this article, the combined pulse width modulation (PWM) and phase-shift control is adopted for the FSBB converter to realize zero-voltage-switching (ZVS) for all the power switches in both forward and reverse power transfer operation. Then, the control methods for achieving smooth reversal of power transfer within one switching cycle are proposed, avoiding excessive current overshoot. Finally, a prototype of the bidirectional FSBB converter with an output power ranging from –5 to 5 kW is built and tested in the lab, and the experimental results are provided to verify the effectiveness of the control methods. © 2024 IEEE.

Research Area(s)

  • Bidirectional power transfer, four-switch buck-boost (FSBB) converter, pulse width modulation, zero-voltage-switching (ZVS)