Decoupled Power Solution for Dual-input Isolated DC-DC Converters Using Four Quadrants Integrated Transformers (FQIT)

Ziwei Ouyang, Michael A. E. Andersen, Ole Cornelius Thomsen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

A common limitation of power coupling effect in some known multiple-input dc-dc converters has been addressed in many literatures. In order to overcome this limitation, a new concept for decoupling the primary windings in the integrated multiple-winding transformers based on 3-dimensional (3D) space orthogonal flux is proposed in this paper. And thus a new geometry core and relative winding arrangements are proposed in accordance with the rthogonal flux decoupling technology. Due to the four secondary windings are arranged in a quadratic pattern at the base core plate with the two perpendicular
primary windings, a name of “four quadrants integrated transformers” (FQIT) is therefore given to the proposed construction. Since the two primary windings are uncoupled, the FQIT allows the two input power stages to transfer the energy into the output load simultaneously or at any timemultiplexing
scheme, which can optimize the utilization of diversified power energy sources, simplify the system structure, improve the flexibility and reduce the overall cost, so they are attractive for the hybrid renewable power system. Section IV initiates a discussion for the advantages of the FQIT. In order to verify the feasibility of the FQIT in multiple-input converter, a dual-input isolated boost dc-dc converter employing with the FQIT is designed and tested. The results have excellently demonstrated that the two input power stages can be operated independently and the correctness of all the analysis in the paper.
Original languageEnglish
Title of host publication2012 IEEE 7th International Power Electronics and Motion Control Conference
PublisherIEEE
Publication date2012
Pages698-704
ISBN (Print)978-1-4577-2087-1
DOIs
Publication statusPublished - 2012
EventThe International Power Electronics and Motion Control Conference - Harbin, China
Duration: 2 Jun 20125 Jun 2012

Conference

ConferenceThe International Power Electronics and Motion Control Conference
CountryChina
CityHarbin
Period02/06/201205/06/2012

Keywords

  • DC-DC
  • Decoupling
  • Integrated transformer
  • Multiple-input converter (MIC)
  • Phase shift
  • Renewable energy

Cite this

Ouyang, Z., Andersen, M. A. E., & Thomsen, O. C. (2012). Decoupled Power Solution for Dual-input Isolated DC-DC Converters Using Four Quadrants Integrated Transformers (FQIT). In 2012 IEEE 7th International Power Electronics and Motion Control Conference (pp. 698-704). IEEE. https://doi.org/10.1109/IPEMC.2012.6258781