Size-adjustable Coils for Compensation of Lateral Misalignment in WPT Systems

Taejun Lim, Yongshik Lee

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

2 Citations (Scopus)

Abstract

This work demonstrates the feasibility of size-adjustable coils to minimize the reduction of the transfer efficiency due to the lateral misalignment between the source and load coils in a resonant-type wireless power transfer system. Experimental results for a 6.78 MHz system reveals that by reducing the size of the coil adaptively according to the misalignment, the transfer efficiency can be maintained above 80% even when effective overlapping area is reduced to 11.5% between a 20 × 20 cm2 coil pair. Moreover, the proposed coil system successfully removes the transfer null caused by a large misalignment. The proposed virtual system is expected to maintain the transfer efficiency higher than 40% even when the misalignment is such that one coil is completely outside the other.

Original languageEnglish
Title of host publication2018 IEEE Wireless Power Transfer Conference, WPTC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538651599
DOIs
Publication statusPublished - 2019 Feb 11
Event2018 IEEE Wireless Power Transfer Conference, WPTC 2018 - Montreal, Canada
Duration: 2018 Jun 32018 Jun 7

Publication series

Name2018 IEEE Wireless Power Transfer Conference, WPTC 2018

Conference

Conference2018 IEEE Wireless Power Transfer Conference, WPTC 2018
CountryCanada
CityMontreal
Period18/6/318/6/7

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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  • Cite this

    Lim, T., & Lee, Y. (2019). Size-adjustable Coils for Compensation of Lateral Misalignment in WPT Systems. In 2018 IEEE Wireless Power Transfer Conference, WPTC 2018 [8639086] (2018 IEEE Wireless Power Transfer Conference, WPTC 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WPT.2018.8639086