EVs Wireless Charging in Urban Context: A Model for Optimal Transmitter Positioning

With new stringent regulations introduced by several countries to encourage the decarbonisation of various sectors, Wireless Power Transfer is becoming one of the most interesting technologies in the transportation framework, as it enables to charge without connection and also dynamically. This type of charging also allows the vehicle to be recharged through short stops in different locations in urban areas, such as crossroads, traffic lights and routes subject to traffic congestions. This work implements a wireless charging model based on resonant inductive power transfer for charging electric vehicles in these locations. To avoid magnetic field leakage, coupled circuits are used that operate at resonant frequency to improve power transfer. The model optimises the number of transmitters for transmission and identifies performance trends by defining an ideal structure for an urban context. This will lead to the possibility of charging EVs also in traffic up to 210 Wh in 30 s. The implementation of this algorithm also makes it possible to check compliance with magnetic field limits on a section of road where wireless power transmission is implemented, proposing solution to avoid undesired citizens involvement.