Modular Primary Topology for Interoperable Dynamic Roadway IPT

Electric vehicle (EV) in motion charging is a subject of active research and development. Ideally, in-road charging systems would deliver power to any EV fitted with a charging system, anywhere on the road, and would be simple and inexpensive to install and maintain. This work proposes a conceptual design that is aimed toward these goals, the outcome of which is validated in the laboratory as an example 5 kW track. The proposed concept is an in-road inductive power transfer (IPT) magnetic topology, capable of delivering a consistent level of power transfer to a vehicle equipped with a bipolar magnetic topology. It is interoperable as it can deliver power to the circular and double D (DD) secondary topologies presently suggested for use on EVs. The primary concept is modular in nature, allowing ease of installation and maintenance and track energization under the vehicle only.