Novel input current ripple compensation technique for capacitor-less dual-half-bridge converter

Changkyu Bai, Byeongcheol Han, Dong Young Huh, Jung Hwan Choi, Soo Hong Kim, Jin S. Lee, Minsung Kim

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

3 Scopus citations

Abstract

This paper proposes a repetitive controller to be used for capacitor-less current-fed dual-half-bridge (CF-DHB) converters under the grid-connected environment. When the dc-link capacitor is very small, the dc-link current fluctuation can distort the input current severely. Compared with the previous controllers introduced to reduce the input current ripples, the proposed repetitive controller can reduce them more significantly. In developing the proposed controller, we derived the dynamic model of the capacitor-less CF-DHB in the grid-connected environment, and used it to implement the repetitive controller. Experimental results verify that the proposed control scheme achieves desirable performance.

Original languageEnglish
Title of host publication2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2015-2021
Number of pages7
ISBN (Electronic)9781509053667
DOIs
StatePublished - 17 May 2017
Event32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 - Tampa, United States
Duration: 26 Mar 201730 Mar 2017

Publication series

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

Conference

Conference32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Country/TerritoryUnited States
CityTampa
Period26/03/1730/03/17

Keywords

  • Controller design
  • DC-DC converter
  • Input current ripple
  • Two-stage inverter

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