Fabrication and Characterization of Roadway-Embedded DWPT Transmitter Coils

A description of the techniques used to fabricate and evaluate the performance of three-phase transmitter coils used in a dynamic wireless power transfer pilot testbed in Indiana is provided. To perform the evaluation, a test apparatus was developed to characterize coil resistance and impedance. Characterizations were then performed before and after placement of a concrete overlay, after a nine-month fall/winter construction hiatus, and upon final coil lead termination prior to inverter installation. Test results demonstrate that the coils met and maintained targeted performance throughout all steps in the construction process.