Skip to main content

Modeling and Analysis of a Polyphase Wireless Power Transfer System for EV Charging Applications...

Publication Type
Conference Paper
Journal Name
IEEE Applied Power Electronics Conference and Exposition (APEC)
Book Title
2022 IEEE Applied Power Electronics Conference and Exposition (APEC)
Publication Date
Page Numbers
1885 to 1890
Publisher Location
New Jersey, United States of America
Conference Name
IEEE Applied Power Electronics Conference and Exposition (APEC)
Conference Location
Houston, Texas, United States of America
Conference Sponsor
Conference Date

Extreme fast charging is an emerging technology targeting to significantly decrease charging times of electric vehicles to 10–20 minutes, similar to an interstate gas refueling practice. High-power wireless power transfer (WPT) systems with polyphase electromagnetic couplers can be an attractive solution for these applications due to the very high surface power density of polyphase coils with reduced ripple current characteristics on both the primary and secondary sides that result in more compact designs with reduced dc bus bar capacitor requirements. In addition, WPT systems offer automated charging process, which can be an enabling technology for connected and automated vehicles, with high-efficiency, convenience, safety, and flexibility. This study presents a matrix representation of a mathematical model for a three-phase WPT system with series-series connected three-phase resonant compensation networks. Nonzero interphase mutual inductances between the same side phase windings are considered for tuning to obtain a circuit model for parametric sensitivity. Simulation and experimental results presented for a 50-kW experimental prototype to demonstrate the operation of the polyphase WPT system.