A Literature Review in Dynamic Wireless Power Transfer for Electric Vehicles: Technology and Infrastructure Integration Challenges

Abstract

Dynamic wireless charging refers to the ability to charge a vehicle while it is in motion using resonant inductive power transfer. This is achieved by embedding source coils in the road and including a pickup coil inside the vehicle, these coils are coupled to get the maximum power transfer. From the point of view of the vehicle, dynamic wireless charging systems theoretically solve the Electric Vehicle (EV) battery problem by delivering unlimited range and making it possible to use smaller batteries, which reduce the cost and weight, however the implementation will be limited by the availability of the charging infrastructure, which in turn is limited by its cost. This paper presents a literature review on the recent advancements of stationary and dynamic wireless power transfer used for EV charging addressing power limitations, electromagnetic interference regulations, communication issues and interoperability, in order to point out the technology challenges to transition from stationary to dynamic wireless charging and the implementation challenges in terms of infrastructure.