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Quarter wavelength resonators for use in wireless capacitive power transfer

  • C. W. Van Neste
  • , Arindam Phani
  • , Allison Larocque
  • , J. E. Hawk
  • , Radhika Kalra
  • , M. J. Banaag
  • , Malina Wu
  • , Thomas Thundat
  • University of Alberta

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

16 Scopus citations

Abstract

Wireless capacitive power transfer is a growing research area that mainly focuses on non-radiating techniques. It has the potential to be highly efficient, low cost, and less susceptible to alignment issues. One major challenge hindering its widespread use is the high voltages found between the capacitive electrodes. Due to this, bipolar (dual, plus/minus electrode) techniques are predominant in literature, as unipolar (one electrode) techniques generally require even higher voltages for operation. Here we present the use of quarter wave resonators as one method to reduce electrode voltages while maintaining efficient energy transfer in a unipolar capacitive geometry. An accurate theoretical model is given based on standard circuit theory. Experimental verification of power transfer over a 5 m by 0.3 m surface is presented where various loads are placed on the system and changing phase parameters are measured.

Original languageEnglish
Title of host publication2017 IEEE PELS Workshop on Emerging Technologies
Subtitle of host publicationWireless Power Transfer, WoW 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages229-234
Number of pages6
ISBN (Electronic)9781509062584
DOIs
StatePublished - Jun 26 2017
Event2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017 - Chongqing, China
Duration: May 20 2017May 22 2017

Publication series

Name2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017

Conference

Conference2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2017
Country/TerritoryChina
CityChongqing
Period05/20/1705/22/17

Keywords

  • capacitive power transfer
  • quarter wave
  • resonators
  • unipolar

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