Performance Analysis of 3-Phase Active Front End PWM Rectifier for Air-Core Two-Coil WPT System Configuration

Wireless battery charging has emerged as a promising technology for electric vehicles (EVs), eliminating the need for physical connections. This study presents a wireless battery charger designed specifically for EV charging applications. The charger utilizes the AC grid's electricity for power factor correction during wireless charging. The charging process comprises four stages: AC-DC conversion, DC-HFAC inversion, wireless power transfer (WPT), and HFAC-DC rectification. An Active Front Rectifier, controlled using the three-phase synchronous reference frame theory (SRFT), ensures a stable DC voltage for efficient charging. The suggested charger implements a WPT scheme, enabling charging without a local controller at the vehicle end. This approach offers convenience, improved energy transfer, and potential integration into existing charging infrastructure. The findings contribute to the advancement of wireless battery charging technology, enhancing the sustainability and convenience of EVs.