A method for designing a high-power contactless power transformer considering reactive power

Kohei Yamamoto, Takashi Maruyama, Keiichiro Kondo, Takayuki Kashiwagi

Research output: Contribution to journalArticle

12 Citations (Scopus)


Problems in high-power contactless power transmission systems using series and parallel resonance capacitors arise from the maximum voltage limit of the series capacitor owing to high reactive power. In this study, the characteristics of reactive power are analyzed using an equivalent circuit and the contactless power transfer system is designed considering reactive power characteristics. The self-inductance and the frequency can determine the distribution of reactive power at the primary side and the secondary side. In addition, the optimal winding number and size of the coil and the appropriate frequency are investigated by electromagnetic field analysis.

Original languageEnglish
Pages (from-to)378-385
Number of pages8
JournalIEEJ Transactions on Industry Applications
Issue number3
Publication statusPublished - 2013 Apr 3
Externally publishedYes



  • Contactless power transfer system
  • Frequency
  • High power system
  • Reactive power
  • Resonance capacitor
  • Self-inductance

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering

Cite this