Downsizing effects of integrated magnetic components in high power density DC-DC converters for EV and HEV

Shota Kimura, Jun Imaoka, Masayoshi Yamamoto

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

8 Citations (Scopus)

Abstract

The interleaved DC-DC converters with integrated magnetic components that achieve high power density have recently gained attention in automotive market for eco-friendly cars such as electric vehicles (EV) and hybrid electric vehicles (HEV). Interleaved converters with close-coupled inductors and loose-coupled inductors are well known as the converters capable to achieve high efficiency with low volume and weight. As a new approach, an interleaved converter with integrated winding coupled inductors is proposed. This paper proposes a novel inductor size calculation model. By using this model, the downsizing effects of the integrated magnetic components are discussed at 1 kW output. As a result, interleaved converter with integrated winding coupled inductors is effective for downsizing of the magnetic components with the condition that duty ratio is higher compared to interleaved converters with loose-coupled inductors and close-coupled inductors. In contrast, it is also found that interleaved converter with loose-coupled inductors achieves downsizing of the magnetic component when duty ratio is close to 50 %. The validity of the calculation model is estimated from the experimental viewpoints.

Original languageEnglish
Title of host publication2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5761-5768
Number of pages8
ISBN (Electronic)9781479956982
DOIs
Publication statusPublished - Nov 11 2014

Publication series

Name2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014

All Science Journal Classification (ASJC) codes

  • Fuel Technology
  • Energy Engineering and Power Technology

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    Kimura, S., Imaoka, J., & Yamamoto, M. (2014). Downsizing effects of integrated magnetic components in high power density DC-DC converters for EV and HEV. In 2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014 (pp. 5761-5768). [6954192] (2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2014.6954192