A SWISS-Rectifier-Based Single-Stage Three-Phase Bidirectional AC-DC Inductive-Power-Transfer Converter for Vehicle-to-Grid Applications

Chi Shing Wong, Junwei Liu, Lingling Cao, K. H. Loo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)

Abstract

Three-phase bidirectional ac-dc inductive power transfer (IPT) systems for vehicle-to-grid applications are conventionally based on a two-stage architecture. However, poor conversion efficiency, high component counts, and high control complexity are distinct disadvantages. Even though a few single-stage ac-dc IPT systems based on matrix-type converters were proposed, it remains a challenge for achieving sinusoidal input current, zero-voltage switching, and high efficiency simultaneously. In this article, a new single-stage three-phase bidirectional ac-dc IPT converter is proposed. The proposed converter is based on a newly proposed multi-active-bridge converter coupled to a SWISS front end. As a result, the proposed converter inherits not only the merits of low distortion of input current, high efficiency, and output short-circuit protection, but also achieves soft-switching operation resulting from the proposed modulation strategy and the property of the double-sided LCC compensation network. The operating principle and mathematical analysis of the proposed converter are discussed. Experimental results are presented to verify the performance of the converter.

Original languageEnglish
Article number9941725
Pages (from-to)4152-4166
Number of pages15
JournalIEEE Transactions on Power Electronics
Volume38
Issue number3
DOIs
Publication statusPublished - 1 Mar 2023

Keywords

  • Bidirectional ac-dc converter
  • electric vehicles (EVs)
  • inductive power transfer (IPT)
  • single stage
  • SWISS rectifier
  • vehicle to grid

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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