Simultaneous Wireless Power and Data Transfer: Overview and Application to Electric Vehicles

A Wireless Power Transfer System (WPTS) is basically constituted by two main parts: the primary side and the secondary side. Beyond the application related with the power transfer, also data communication between these two sides can be implemented and it can have a fundamental importance. In this paper, a classification that highlights the advantages and the disadvantages of different data communication techniques available in the literature is shown. The single link dual carrier (SLDC) technique is studied in depth, analysing transfer function of the power and data transmitting channels. A design example for electric vehicle wireless charging application in a Series-Series (SS) compensated system is presented. The analytical models are validated through simulations.