Analysis and Verification of a Half-Dual Bridge Resonant Converter with Voltage Match Modulation

Rui Wang, Yinan Li, Chuan Sun, Song Hu, Xiaodong Li, Wu Chen, Gang Lv

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

To overcome the weakness of the narrow conversion gain of dual bridge resonant converter, a half-dual bridge resonant converter (H-DBRC) with voltage match modulation (VMM) is proposed and implemented for wide voltage range applications. The H-DBRC, including a full bridge on the primary side and a half bridge on the secondary side, is adopted to realize the bidirectional power flow and wide voltage operation. Owing to the synergy between the H-DBRC structure and VMM strategy, the converter can operate in full-bridge state and half-bridge state with maximized ZVS (zero-voltage switching) operation and minimized circulating current. The steady-state analysis is performed and the solutions for both forward and backward modes could be obtained uniformly by using the fundamental harmonics approximation approach. The soft-switching characteristics, implementation process and design example are analyzed in detail. Finally, to confirm the theoretical analysis and feasibility, both simulation and experimental verifications are demonstrated in this paper. Since the converter consistently achieves voltage-matching operation, the optimal ZVS range can be obtained when the voltage gain M is between 0.5 to 1. Moreover, the economic cost and control complexity are greatly reduced because only six switches are required in the converter.

Original languageEnglish
Article number2675
Pages (from-to)1-21
JournalElectronics (Switzerland)
Volume11
Issue number17
DOIs
Publication statusPublished - Aug 2022

Keywords

  • bidirectional resonant DC-DC converter
  • wide voltage range
  • zero-voltage switching (ZVS)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Signal Processing
  • Hardware and Architecture
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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