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Small signal modeling, analysis and control of naturally clamped soft-switching current-fed three-phase Bidirectional DC/DC converter

  • Xuewei Pan
  • , Peng Wang
  • , Quoc Nam Trinh
  • , Akshay Kumar Rathore
  • Nanyang Technological University
  • National University of Singapore

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

Abstract

A small signal analysis and a closed loop control design of naturally commutated current-fed three-phase isolated dc/dc converter are presented in this paper. State-space averaging technique is used to derive the small signal model. Based on the derived small signal model, a closed two-loop controller is designed and implemented on mixed signal (analog and digital) processor Cypress PSoC 5. A complete design procedure is presented. Simulation results using PSIM 9.0.4 and experimental waveforms from a 750W prototype with the designed controller are illustrated to verify the stability of the control system. Experimental results for step changes in load clearly show satisfactory transient performance of the converter and validate closed two-loop design.

Original languageEnglish
Title of host publication9th International Conference on Power Electronics - ECCE Asia
Subtitle of host publication"Green World with Power Electronics", ICPE 2015-ECCE Asia
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2312-2317
Number of pages6
ISBN (Electronic)9788957082546
DOIs
StatePublished - 27 Jul 2015
Externally publishedYes
Event9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia - Seoul, Korea, Republic of
Duration: 1 Jun 20155 Jun 2015

Publication series

Name9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia

Conference

Conference9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia
Country/TerritoryKorea, Republic of
CitySeoul
Period1/06/155/06/15

Keywords

  • Current-fed converter
  • Small signal modeling
  • Soft-switching
  • Three-phase
  • Zero current commutation

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