Overview of High-Power Wireless Charging Systems and Analysis of Polyphase Wireless Charging System Phase Winding and Resonant Tuning Network Connection Configurations

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Abstract

In spite of the high energy efficiency and environmental benefits of electric vehicles (EVs), adoption rates are increasing at a relatively slow pace, primarily because of EVs' limited range and long charging durations. To reduce EV charging times to be comparable to refueling times of conventional vehicles, extreme fast charging (XFC) systems are required. Such charging systems would reduce drivers' range anxiety and enable long-distance interstate travel with EVs. This substantial target in charging rates with 15-20 min of recharging times requires research and development from grid to batteries with advanced charging systems. Wireless power transfer (WPT) systems for EV charging applications are flexible, convenient, and highly efficient, and they allow automated charging. This article reviews the power electronics and winding and resonant tuning network configurations for polyphase WPT systems for high-power wireless charging applications.

Original languageEnglish
Pages (from-to)6700-6718
Number of pages19
JournalIEEE Transactions on Transportation Electrification
Volume11
Issue number2
DOIs
StatePublished - 2025

Funding

This research used the resources available at the Power Electronics and Electric Machinery (PEEM) laboratory at the National Transportation Research Center (NTRC), a U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) user facility operated by Oak Ridge National Laboratory (ORNL). Authors would like to thank Lee Slezak (Vehicle Technologies Office, U.S. Department of Energy) and John Jason Conley (National Energy Technology Laboratory) for funding this work and for their continuous support and guidance. This work was supported by the U.S. Department of Energy, Vehicle Technologies Office, under grant FOA-DE-0001808. This work was supported by U.S. Department of Energy, Vehicle Technlogies Office, under Grant FOA-DE-0001808.

Keywords

  • Electric vehicle (EV) charging
  • extreme fast charging (XFC)
  • wireless power transfer (WPT)

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