An evaluation of power flow control of the power conversion circuit for contactless power transformer systems at the coil misalignment

Satoshi Kitazawa, Keiichiro Kondo, Takayuki Kashiwagi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The coupling coefficient between the coils of a noncontact power supply system is reduced by coil misalignment. This reduces the output voltage and the active power in the coils. To cope with these problems, an instantaneous current control method is applied to a single-phase contactless power transformer system to apply the equivalent impedance of the PWM rectifier at the load side of the transformer. We propose a control method to supply power constantly to the load even when misalignment of the receiving coils occurs. The limit of the transferred power associated with the proposed control method is investigated. The proposed system, including the control method, is verified by experimental tests over a power range of several tens of watts.

Original languageEnglish
Pages (from-to)518-525
Number of pages8
Journalieej transactions on industry applications
Volume133
Issue number5
DOIs
Publication statusPublished - 2013 May 20
Externally publishedYes

Keywords

  • Contactless power transfer system
  • Instantaneous current control method
  • Misalignment of the coil
  • PWM rectifier

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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