Power Chapter WebEx: HIGH POWER AND DYNAMIC WIRELESS CHARGING OF ELECTRIC VEHICLES

Dynamic charging or dynamic wireless power transfer (DWPT) can significantly alleviate range anxiety and concurrently reduce the on-board battery capacity required, there by reducing the weight, volume, and cost of EVs. Transferring power at higher levels (~ 200 kW) will lead to reduction of percentage of roadway or infrastructure that needs to be electrified thereby making the technology more viable. Existing wireless charging technology for LD vehicles is limited to 20 kW charge rates; this is not sufficient for most dynamic DWPT applications, especially at higher vehicle speeds. In some applications, five or more 20 kW systems have been used in parallel to achieve higher power levels. Although this may be a reasonable approach for MD and HD vehicles, it is not practical for light-duty passenger vehicles where space is limited and fitting more than one or two coil assemblies on the vehicle is infeasible. This seminar focusses on the challenges and ORNL’s approach to overcome them to enable a practicable 200 kW dynamic wireless EV charging system.

Co-sponsored by: Richard Kolodziejczyk

Speaker(s): Veda Prakash Galigekere, Ph.D,

WebEX, Knoxville, Tennessee, United States, Virtual: https://events.vtools.ieee.org/m/306060