Electric Vehicles Wireless Power Transfer State-of-The-Art

Abstract

The constant research to eliminate wires in our everyday lives has been going on for years now. When the telephone or the telegraph was first invented, wires were needed to transmit communication between parties. Now, wireless power transfer is very beneficial for society. Wireless power transfer is already being implemented in today’s world in some cases, but it is not part of the "mainstream". Tesla had an ambition of transmitting wireless electricity to help the cause of not needing wires to be spread through the world. Thus, in 1891, he invented the Tesla-coil. The coil’s setup consisted of a primary coil with a capacitor and a secondary coil with a capacitor. Now, there is an essential need for expanding the utilization of wireless charging methods for electric vehicle technology to overcome the wired charging drawbacks and the cost. Various wireless power transfer (WPT) methods for electric vehicles charging are conferred in brief with some scientific examples and approaches. Inductive wireless power transfer prototype is experimentally implemented with 3D design is presented as well. Finally, some future points are mentioned in brief.