Analysis of coupled-inductor configuration for an interleaved high step-up converter

Wilmar Martinez, Jun Imaoka, Yuki Itoh, Masayoshi Yamamoto, Kazuhiro Umetani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Citations (Scopus)

Abstract

High step-up converters are widely used in sustainable energy systems and recently used in automotive applications due to their high voltage gain capability. Nevertheless, with the purpose of obtaining a higher voltage gain, in comparison with conventional boost converters, current high step-up converters often employ additional multiplier cells, which may lead to significant cost-up and low power density. Therefore, a novel two-phase interleaved high step-up converter is proposed in order to minimize additional circuit volume used to achieve large voltage gain. The proposed converter addresses the purpose by a particular coupled inductor where three windings are installed in one or two cores. As a result, the proposed converter can achieve higher voltage gain than the conventional topologies by adding a winding and two diodes to the interleaved two phase boost chopper, besides the coupled-inductor configuration. This paper evaluates two arrangements of the coupled-inductor configuration of the proposed high step-up converter: 1. Three windings integrated in only one core and 2. Two independent inductors with a shared winding. The result revealed that the proposed converter shows higher voltage gain than the normal boost converter and the magnetic integration in the coupled-inductor configuration further increases the voltage gain by 20%.

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.
Pages2241-2248
Number of pages8
ISBN (Electronic)9788957082546
DOIs
Publication statusPublished - 2015 Jul 27
Externally publishedYes
Event9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia - Seoul, Korea, Republic of
Duration: 2015 Jun 12015 Jun 5

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
CountryKorea, Republic of
CitySeoul
Period15/6/115/6/5

Keywords

  • Coupled-Inductor
  • High Step-Up Converter
  • Hybrid Electric Vehicles
  • Power Density

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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  • Cite this

    Martinez, W., Imaoka, J., Itoh, Y., Yamamoto, M., & Umetani, K. (2015). Analysis of coupled-inductor configuration for an interleaved high step-up converter. In 9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia (pp. 2241-2248). [7168088] (9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICPE.2015.7168088