Implementation of Z-Source Resonant Converter for Power Factor Correction & Wireless Charging Applications

Abstract

The Z-source converter is discussed in this study in the context of Wireless Power Charging (WPC). The concept is illustrated using the Z-source resonant converter, which is a Wireless power Transmission) device for charging electric vehicle batteries. The Z-Source Resonant Converter (ZSRC) implements Power Factor Correction (PFC) and controls the voltage at the output side automatically that too simultaneously, thanks to the Z-Source Inverter (ZSI), without going for any control circuitry or extra semiconductor devices, as traditional PFC converters do. To put it another way, the ZSN is a single-stage PFC converter family. Furthermore, because the ZSN is not affected by shoot-through states, it is appropriate for high-power applications, increasing system stability and adding a boost function. This study describes and analyses the ZSRC-based WPT system's operational principle.