Enhanced Control Strategy for Wireless Power Transfer Systems Using a Self-Sustained Oscillating Control Technique

This paper presents an advanced control strategy for optimizing the performance of Wireless Power Transfer (WPT) systems using a Series-Series Resonant Converter (SSRC). The proposed Self-Sustained Oscillating Control (SSOC) technique enhances the efficiency of Zero Voltage Switching (ZVS), significantly reducing switching losses and improving overall system performance. The SSOC method dynamically adjusts the switching frequency to ensure ZVS under a wide range of operating conditions, including varying load scenarios and coil misalignment. The technique is validated through comprehensive simulations and experimental studies, demonstrating its capability to maintain stable voltage regulation and reliable power transfer efficiency in real-world WPT applications. The experimental results highlight the robustness of the SSOC in electric vehicle (EV) charging systems, showcasing its potential as a scalable and efficient solution for modern WPT infrastructures.