Instantaneous reactive power reduction of ripple-free resonant buck converter using bidirectional switch

Hwasoo Seok, Seo Gwang Jeong, Kwang Seop Kim, Adria Junyent-Ferre, Honnyong Cha, Minsung Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

This paper presents an instantaneous reactive power reduction method for rippleless resonant bidirectional converter in backward operation. The method is applied to improve an existing converter topology that features high step-up/down capability, high efficiency and zero input ripple. The original topology suffers from significant reverse current when transferring power backwards under synchronous rectification. By adding a single bidirectional switch in the circuit, we are able to block the reverse current in the backward operation, which dramatically reduces the circulating current and current stress on the switch. A non-complementary modulation strategy for the bidirectional switch is developed to further reduce the conduction loss, which comes from the use of the bidirectional switch. A 600-W converter prototype has been implemented to show the performance of the converter.

Original languageEnglish
Title of host publication34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3174-3179
Number of pages6
ISBN (Electronic)9781538683309
DOIs
StatePublished - 24 May 2019
Event34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 - Anaheim, United States
Duration: 17 Mar 201921 Mar 2019

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2019-March

Conference

Conference34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Country/TerritoryUnited States
CityAnaheim
Period17/03/1921/03/19

Keywords

  • Conduction loss
  • Input current ripple
  • Non-complementary modulation strategy
  • Reactive power blocking
  • Synchronous rectification

Fingerprint

Dive into the research topics of 'Instantaneous reactive power reduction of ripple-free resonant buck converter using bidirectional switch'. Together they form a unique fingerprint.

Cite this