Wireless EV Charging On-The-Go Coming To PA Turnpike
Wireless EV charging is finally coming to the nation’s highways, and that could help solve the charging bottleneck when millions of electric vehicles surge into the mass market. That includes electric trucks and buses, too. The Pennsylvania Turnpike, for one, does not aim to be caught napping. They are already planning for wireless EV charging on-the-go, with a solar power bonus, to boot.
“By reconfiguring the transformer and altering the resonance frequency, power is transferred to the battery with little energy loss and fewer demands on the primary circuit. The technology can be used for wireless charging of stationary electric vehicles in garages and parking lotsORNL researchers also developed a suite of complimentary technologies for their wireless EV charging device, including communication and feedback systems as well as hardware.
The relatively small footprint is made possible by ORNL’s “Oak Ridge Converter,” which cuts down on the number of power stages needed to complete the transfer. The result is a wireless EV charging system that delivers a surface power density of 1.5 megawatts per square meter, which ORNL described as “eight to 10 times higher than currently available technology.”
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