Comparison of capacitor- and ferrite-less 85kHz self-resonant coils considering dielectric loss for in-motion wireless power transfer

Yoshiaki Takahashi, Katsuhiro Hata, Takehiro Imura, Yoichi Hori

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Citations (Scopus)

Abstract

In wireless power transfer, high voltage can breakdown the resonance capacitor due to magnetic resonance coupling in S/S topology. Then, an open-end coil can be self-resonant with parasitic capacitance and can be maintenance-free for primary-side system even if the coupling is weak. It is necessary for high-power and high-efficiency transfer to reduce the resistance of coils. However, the internal resistance of the coil is not sufficiently low to transfer high power. In this paper, in order to reduce the resistance of the coil, the dielectric property is explored. The experiments demonstrated that the internal resistance of the proposed coil can be reduced by considering the dielectric loss.

Original languageEnglish
Title of host publicationProceedings
Subtitle of host publicationIECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5159-5163
Number of pages5
ISBN (Electronic)9781509066841
DOIs
Publication statusPublished - 26 Dec 2018
Event44th Annual Conference of the IEEE Industrial Electronics Society, IECON 2018 - Washington, United States
Duration: 20 Oct 201823 Oct 2018

Publication series

NameProceedings: IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society

Conference

Conference44th Annual Conference of the IEEE Industrial Electronics Society, IECON 2018
Country/TerritoryUnited States
CityWashington
Period20/10/1823/10/18

Keywords

  • Capacitor-less
  • Dynamic charging
  • Electric vehicle
  • Open-end coil
  • Withstand voltage

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