A 100-kW Wireless Power Transfer System Development Using Polyphase Electromagnetic Couplers
- Resource Type
- Conference
- Authors
- Onar, Omer C.; Su, Gui-Jia; Mohammad, Mostak; Galigekere, Veda P.; Seiber, Larry; White, Cliff; Wilkins, Jonathan; Wiles, Randy
- Source
- 2022 IEEE Transportation Electrification Conference & Expo (ITEC) Transportation Electrification Conference & Expo (ITEC), 2022 IEEE. :273-278 Jun, 2022
- Subject
- Aerospace
Components, Circuits, Devices and Systems
Power, Energy and Industry Applications
Transportation
Power system measurements
Density measurement
Inductive charging
Rectifiers
Wireless power transfer
Couplers
Surface charging
polyphase coupler
wireless power transfer
electric vehicle
wireless charging
- Language
Wireless power transfer (WPT) is an essential technology enabling automated charging of electric vehicles with safety, convenience, and flexibility while having high efficiencies. High-power wireless charging systems will be one of the dominating charging technologies for electric vehicles (EVs) in an effort to eliminate range anxiety and reduce charging times similar to that of gas station refueling practice. Polyphase electromagnetic coupler with rotating fields is a new bipolar wireless charging pad technology that can significantly increase the surface power density (kW/m2) of wireless charging coils. This study proposes a 100-kW wireless power transfer system with a compact vehicle-side (receiver) coupler that reaches to about 0.905 MW/m2 surface power density with a transmitter rated for up to 300 kW with 0.68 MW/m2. High-frequency power electronics including the inverter and rectifier designs are included in this digest along with the hardware prototype developments and preliminary experimental results.