A study on the design method of the light weight coils for a high power contactless power transfer systems

T. Maruyama, K. Yamamoto, S. Kitazawa, K. Kondo, T. Kashiwagi

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

11 Citations (Scopus)

Abstract

A contactless power transfer system has a lot of attention in many advantages such as the electric shock free and the short circuit. Moreover, if assuming the electric supply to a moving vehicle, a contactless power transfer system is advantageous in respect of less maintenance. So a contactless power transfer system is expected to be applied to the power feeding to the electric vehicles and the railway vehicles are expected. The contactless power transfer through a large air gap causes lower power factor. So, the contactless power transfer system has resonant capacitors, to correct the power factor. When increasing the power of the system, there are the problems with the higher reactive power of the power feeding coils, higher voltage and over-current of the resonant capacitors. In addition, the loss with the converter becomes more major problem by raising the frequency of the power converter. This paper deals with a 300kW contactless power transfer system for charging the energy storage device, for instance, for supplying power to the hybrid railway vehicles. The characteristics such as power feeding coils-reactive power and loss property are analyzed, to downsize the power feeding coils.

Original languageEnglish
Title of host publicationICEMS 2012 - Proceedings
Subtitle of host publication15th International Conference on Electrical Machines and Systems
Publication statusPublished - 2012 Dec 1
Externally publishedYes
Event15th International Conference on Electrical Machines and Systems, ICEMS 2012 - Sapporo, Japan
Duration: 2012 Oct 212012 Oct 24

Publication series

NameICEMS 2012 - Proceedings: 15th International Conference on Electrical Machines and Systems

Other

Other15th International Conference on Electrical Machines and Systems, ICEMS 2012
CountryJapan
CitySapporo
Period12/10/2112/10/24

Keywords

  • contactless power transfer system
  • design of coils
  • frequency
  • high power system

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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  • Cite this

    Maruyama, T., Yamamoto, K., Kitazawa, S., Kondo, K., & Kashiwagi, T. (2012). A study on the design method of the light weight coils for a high power contactless power transfer systems. In ICEMS 2012 - Proceedings: 15th International Conference on Electrical Machines and Systems [6401934] (ICEMS 2012 - Proceedings: 15th International Conference on Electrical Machines and Systems).