High-power-density three-phase interleaved boost converter with a novel coupled inductor

Jun Imaoka, Masayoshi Yamamoto, Takahiro Kawashima

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Lightweight and compact high-power-density boost converters are required for many applications. This paper presents a three-phase interleaved boost converter with a novel coupled inductor that can achieve high-power-density. The novel coupled inductor is especially suitable for the three-phase interleaved boost converter, from the core structure standpoint. The electrical and magnetic characteristics of the three-phase interleaved boost converter are analyzed in detail to illustrate the effectiveness of the novel coupled inductor. Furthermore, maximum output power calculation methods for the novel coupled inductor and a non-coupled inductor are proposed to demonstrate the performance of high-power-density converters. On the basis of the calculation method, the maximum output power of the proposed coupled inductor is about 2.6 times greater than that of the non-coupled inductor under continuous current mode (CCM) conditions. The compact volume, low-weight characteristics, and the performance of the three-phase interleaved boost converter with the novel coupled inductor are discussed from both the theoretical and experimental standpoints.

Original languageEnglish
Pages (from-to)20-30
Number of pages11
JournalIEEJ Journal of Industry Applications
Issue number1
Publication statusPublished - 2015

All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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