Simulation of Parallel-Series Converter in Open Loop and Closed Loop for Wireless Power Transfer

Abstract

Typically, the wireless power transfer is compensated using Parallel Series architecture powered by an inverter that is current sourced (CSI). It is mainly regulated at duty cycle with a 50% approach. This allows the system to run at its resonance frequency, which wanders as a result of load as well as other variable fluctuations. Due to such a controlling limitation, the loading specifications are met by installing an extra dc-dc converter at the circuit end. This simulation study provides an open loop and closed loop control approach for a Parallel-Series WPT topology, which is supplied by a full-bridge CSI to fulfill the load requirement directly. So, the converter's output side chopper is eliminated. The control objectives are met by a two-loop technique in which source current is regulated by the inner loop and load current by outer loop. This study describes in-depth converter design analysis and closed loop control design in PSIM software.