A switched-inductor-augmented resonant DAB converter for achieving wide-range zero voltage switching

M. Yaqoob, Ka Hong Loo, Y. M. Lai

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

2 Citations (Scopus)

Abstract

A modified LCL resonant tank incorporating switch-controlled inductor (SCI) is introduced to realize a tunable resonant tank that ensures ZVS in primary side and ZCS in secondary side switches of an isolated bidirectional dual-active-bridge DC-DC converter (DAB-IBDC) under a wide range of output voltage and charging current of super-capacitor. The nominal operating point is carefully chosen to reduce conduction loss arising from circulating current. Moreover, the firing-angle of SCI is selected in such a way that it keeps ZCS at secondary side to avoid excessive ringing in voltage and current because of parasitic inductances in switches. Simulation and experimental results are shown to validate the effectiveness of the proposed resonant tank and control strategy on DAB-IBDC, which is designed to interface a 400 V dc bus to super-capacitor with voltage variation in the range of 10 V to 48 V, at maximum rated current of 10 A and rated power of 480 W. Finally, an efficiency of up to 94.23 % is achieved using proposed topology and modulation scheme.
Original languageEnglish
Title of host publication2016 IEEE 7th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2016
PublisherIEEE
ISBN (Electronic)9781467386166
DOIs
Publication statusPublished - 29 Jul 2016
Event7th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2016 - Vancouver, Canada
Duration: 27 Jun 201630 Jun 2016

Conference

Conference7th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2016
Country/TerritoryCanada
CityVancouver
Period27/06/1630/06/16

Keywords

  • conduction loss
  • DC-DC converter
  • dual-active-bridge
  • micro-grid
  • super-capacitor
  • switching loss
  • zero current switching
  • zero voltage switching

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Control and Systems Engineering
  • Control and Optimization

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