Konstanina Dimitriadou, Nick Rigogiannis, A. Kyritsis, N. Papanikolaou
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Primary Side Control of a Self-Oscillating Wireless EV Charger with Inherent ZCS Operation
In this paper, a primary side control strategy that is utilized for power flow regulation in a wireless EV charger, is presented. The proposed control scheme ensures the self-oscillating operation of the high-frequency inverter and Zero Current Switching (ZCS) transitions for its semiconductor switches. In addition, power flow regulation and overcurrent protection for the studied Wireless Power Transfer (WPT) system are enabled. Simulation results, obtained by the aid of MATLAB® Simulink platform are presented, highlighting the functionality of the proposed scheme, the good performance of the overall wireless system, as well as the flexibility of the self-oscillating control for various EV battery voltage levels.