Targeted Contactless Charging for Roadway-Powered Electric Vehicles

This paper proposes a targeted energy transmission control strategy for the roadway-powering system to deal with multiple electric vehicles (EVs) with the charging request. Regarding to the same induced electromagnetic fields, particularly, all involved EVs can access the energy, which inevitably deteriorates the optimal energy management. Hence, this paper presents a targeted energy transmission control, which can make the energy specifically transferred from the electric supply to expected energy receptors. As the key technique, the proposed EV roadway-powering system purposely adjust the working frequency and the impedance of compensating circuits, which aims to ensure the resonant state for targeted EVs and turn off the energy transmission channel for non-targeted EVs. Accordingly, the proposed roadway-powering system will benefits the energy management for EVs. Lastly, the theoretical analysis and the verification results are both given to illustrate the effectiveness of the proposed targeted energy transmission control for EV roadway-powering systems.