Bidirectional Wireless Charging Infrastructure for Electric Vehicles: Power Converter Design and Control for G2v And V2g Modes

Abstract

The rapid adoption of electric vehicles (EVs) has intensified the demand for advanced charging infrastructures that offer convenience, efficiency, and grid support capabilities. Bidirectional wireless charging has emerged as a promising solution by enabling both Grid-to-Vehicle (G2V) and Vehicleto-Grid (V2G) energy transfer without physical connectors. This technology utilizes inductive power transfer (IPT) systems and bidirectional power converters to facilitate seamless energy exchange between EV batteries and the electrical grid. In G2V mode, energy is transferred from the utility grid to charge the EV battery, whereas in V2G mode, stored battery energy is supplied back to the grid to support peak load management, frequency regulation, and renewable energy integration. The proposed bidirectional wireless charging infrastructure incorporates high-frequency resonant compensation networks, efficient AC–DC and DC– DC converter stages, and advanced control algorithms to regulate power flow and maintain system stability. Dual-phase shift pulse-width modulation (DPS-PWM) and power factor correction techniques are employed to improve efficiency and minimize harmonic distortion. Simulation results demonstrate stable operation under varying coupling conditions, high power transfer efficiency, and reduced total harmonic distortion. The proposed system contributes toward the realization of smart grids, sustainable transportation, and intelligent energy management systems.