Reverse Current Elimination for Capacitor Voltage Balanced Bidirectional Resonant Converter Using a Bidirectional Switch

Hwasoo Seok, Jun Seok Kim, Owon Kwon, Minsung Kim

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

Abstract

In this paper, we present an instantaneous reverse current elimination method for a capacitor voltage balanced bidirectional resonant converter operating in the backward operation. A conventional high step-up resonant converter with balanced capacitor voltage may suffer from a significant reverse current due to a large fluctuation of the resonant capacitor voltage in the backward operation. 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 reverse 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. As a result, the proposed bidirectional converter has high step-up/down capability, high efficiency, and balanced capacitor voltage. A 400-W converter prototype has been implemented to show the performance of the converter.

Original languageEnglish
Title of host publicationAPEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1044-1050
Number of pages7
ISBN (Electronic)9781728148298
DOIs
StatePublished - Mar 2020
Event35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020 - New Orleans, United States
Duration: 15 Mar 202019 Mar 2020

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2020-March

Conference

Conference35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020
Country/TerritoryUnited States
CityNew Orleans
Period15/03/2019/03/20

Keywords

  • Balanced capacitor voltage
  • conduction loss
  • non-complementary modulation strategy
  • reverse current

Fingerprint

Dive into the research topics of 'Reverse Current Elimination for Capacitor Voltage Balanced Bidirectional Resonant Converter Using a Bidirectional Switch'. Together they form a unique fingerprint.

Cite this