Modeling, Design, and Control of the Parallel-Series Compensated Bidirectional IPT Topology for EV Applications

Abstract

This paper addresses the bidirectional power flow capability of the current-fed inductive power transfer (IPT) converter. The proposed bi-directional IPT converter has Parallel-Series (P-S) topology during grid-to-vehicle (G2V) and Series-Parallel (S-P) topology during vehicle-to-grid (V2G) mode of operation. Mathematical modeling of both topologies is included that provides the detailed analysis of the converter. The selection of circuit parameters is made for the conventional mode of operation, G2V mode. The bidirectional power flow of the converter is controlled to meet the load requirements. The small-signal modeling and circuit frequency responses are also reported for both modes of operation. The viability of the technique is verified through the simulation results of the PowerSIM simulation platform.