A Modified LCC-Compensated Pickup Topology for Dynamic Wireless Power Transfer Systems

This paper proposes an unconventional pickup topology employed in the dynamic battery charging of electric vehicles. The pickup reactive power compensation is performed through a modified LCC network that permits the continuous conduction mode operation of the rectifier for a wide range of working conditions. The dc/dc converter that controls the battery charging process requires a small value of dc inductance for the proper operation. The proposed control strategy for the switch in the dc/dc conversion stage maintains the pickup input power factor close to one for large variations of the charging power. In this paper, at first the operation of the proposed topology and its related control strategy are introduced and then a design procedure for the modified LCC network parameters is presented. The pickup topology is implemented in PSIM and the outcomes of the simulations corroborate the analytical analysis.