Relation between Operation Frequency Range and Coupling Coefficient Variations in WPT under Subresonant Frequency Control

A. Vulfovich, A. Kuperman

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

Abstract

A number of applications such as wireless EV charging introduce operational frequency range constraints such as those present in the SAE J2954 protocol. This paper analyzes the coupling coefficient variations limit of a constant voltage fed sub resonant frequency-controlled S-S IWPT link with a constant voltage load operating in a constrained frequency range. It is shown that with a 12.2% change in frequency as per SAE J2954 it is possible to compensate for a 90% variation of coupling coefficient. The analytical calculations are further validated by simulation in the PSIM software.

Original languageEnglish
Title of host publication2021 IEEE PELS Workshop on Emerging Technologies
Subtitle of host publicationWireless Power Transfer, WoW 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728195483
DOIs
StatePublished - 1 Jun 2021
Event2021 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2021 - Virtual, Online
Duration: 1 Jun 20214 Jun 2021

Publication series

Name2021 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2021

Conference

Conference2021 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2021
CityVirtual, Online
Period1/06/214/06/21

Keywords

  • load-independent current output
  • resonant inductive wireless power transfer
  • sub-resonant frequency control

ASJC Scopus subject areas

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

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