Small signal analysis and control design of snubberless naturally clamped ZCS/ZVS current-fed half-bridge DC/DC converter for EV

Minchi Xie, Yigeng Huangfu, Qingchao Zhang, Qian Li, Dongdong Zhao, Yuntian Liu

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

2 Scopus citations

Abstract

This paper presents a systematic derivation of a small signal model of current-fed half bridge isolated dc/dc converter for the hybrid electric vehicle based on the lithium battery and fuel cell. The reflected output voltage across the power semiconductor devices can naturally be clamped at Vo/n by a secondary-modulation strategy without any additional circuit, which can reduce footprints and cost. Moreover, the soft switch of all can be achieved resulting in low switching losses and higher efficiency due to ZCS/ZVS. In order to maintain the constant bus voltage and the balanced two-way inductor current, a small signal model using state-space averaging technique is deduced and the dual closed loop controller is designed in detail. The co-simulation of PSIM and MATLAB/SIMULINK is used to verify the effectiveness of the controller when the load step-changes in case of the different input voltage.

Original languageEnglish
Title of host publicationProceedings
Subtitle of host publicationIECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages4998-5004
Number of pages7
ISBN (Electronic)9781509066841
DOIs
StatePublished - 26 Dec 2018
Event44th Annual Conference of the IEEE Industrial Electronics Society, IECON 2018 - Washington, United States
Duration: 20 Oct 201823 Oct 2018

Publication series

NameProceedings: IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society

Conference

Conference44th Annual Conference of the IEEE Industrial Electronics Society, IECON 2018
Country/TerritoryUnited States
CityWashington
Period20/10/1823/10/18

Keywords

  • Current-fed converter
  • Dual closed loop controller
  • Hybrid electric vehicle
  • Small signal model
  • Soft switching

Fingerprint

Dive into the research topics of 'Small signal analysis and control design of snubberless naturally clamped ZCS/ZVS current-fed half-bridge DC/DC converter for EV'. Together they form a unique fingerprint.

Cite this