A study on the circuit configuration with capacitors to compensate the power factor for high-power contactless power transformer

Kohei Yamamoto, Takashi Maruyama, Keiichiro Kondo, Takayuki Kashiwagi

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

10 Citations (Scopus)

Abstract

The contactless power transfer systems have recently attracted much attention as it is possible to supply electrical energy to vehicles without cables. We have studied high-power contactless power transfer systems in the hundreds of kilowatts power range for the purpose of applying it into the railway vehicles. In this system, resonant capacitors are used to compensate the input power factor. Problems in high-power contactless power transfer systems using resonance capacitors arise from the maximum voltage and current limit of the capacitors owing to high reactive power. Thus it is important to select a topology whose reactive power is lower. In this paper, the Series-Parallel (SP) topology and the Series-Series (SS) topology are discussed for high-power contactless power transfer systems. The contactless power transfer coils for supplying 300kW are designed for both topologies by means of electromagnetic analysis and it is clarified that the reactive power of the primary side in the SP topology is lower than that in the SS topology. In addition, the result that the coils in the SP topology are lighter than that in the SS topology is presented.

Original languageEnglish
Title of host publication2013 International Conference on Electrical Machines and Systems, ICEMS 2013
PublisherIEEE Computer Society
Pages2233-2238
Number of pages6
ISBN (Print)9781479914470
Publication statusPublished - 2013 Jan 1
Externally publishedYes
Event2013 International Conference on Electrical Machines and Systems, ICEMS 2013 - Busan, Korea, Republic of
Duration: 2013 Oct 262013 Oct 29

Other

Other2013 International Conference on Electrical Machines and Systems, ICEMS 2013
CountryKorea, Republic of
CityBusan
Period13/10/2613/10/29

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Yamamoto, K., Maruyama, T., Kondo, K., & Kashiwagi, T. (2013). A study on the circuit configuration with capacitors to compensate the power factor for high-power contactless power transformer. In 2013 International Conference on Electrical Machines and Systems, ICEMS 2013 (pp. 2233-2238). [6754555] IEEE Computer Society.