ENHANCED LCC COMPENSATION TOPOLOGY WITH INTEGRATED DUO TRANSMITTER WINDING FOR EFFICIENT WIRELESS POWER TRANSMISSION IN EV

The growing demand for Electric Vehicles (EVs) necessitates the advancement of efficient charging systems. While dynamic charging models exhibit superior efficiency in Wireless Power Transfer (WPT) systems compared to static charging, however, the inherent challenges impede the effective operation of EV charging. This research aims to effectively address the existing research gap causing coil misalignment and sub-optimal efficiency in wireless charging systems for EVs by proposing a circuit design integrating an enhanced LCC compensation topology specifically tailored for wireless charging systems. The key innovation lies in the inclusion of a dual transmitter winding which optimizes power transmission between receiver and transmitter coils while ensuring high efficiency. The duo transmitter winding is split into sub windings one connected to the inverter and the other left open which further enhances performance, enabling operation under higher misalignment conditions while maintaining elevated efficiency levels. The advantage of both open and closed inductance in the circuit configuration significantly improves performance, overcoming previous constraints and providing a more robust and reliable charging solution. The circuit design implements Zero Voltage Switching (ZVS) to minimize energy losses in the Snubber MOSFET capacitance, typically used as a switch. Additionally, a ZVS feedback mechanism is incorporated to dynamically adjust the series capacitor on the receiver side, suggesting the presence of a resonant circuit. This approach aims to optimize the switching characteristics of the MOSFET, reduce losses, and enhance the overall efficiency of the power electronic system, potentially for applications such as wireless power transfer or power supplies. By enhancing the effectiveness and reliability of wireless power transfer in EVs, this study contributes to advancing the ease and feasibility of charging electric vehicles, potentially revolutionizing the EV industry's charging infrastructure.