A Novel Photovoltaic-Based Wireless EV Charging System using a Modified Trans-Quasi Z-Source Boost Converter

Abstract

This paper proposes a PV-integrated wireless charging architecture for electric vehicles utilizing a modified Trans-Quasi Z-Source boost converter. The PV system is integrated with advanced power electronics for efficient energy conversion and management. It begins with photovoltaic cells generating voltage (V_pv) and current (I_pv), which are fed into the modified Trans-Quasi Z-Source boost converter. The converter employs PWM control to enhance the output voltage, which is then supplied to a high-frequency inverter. The inverter output is applied to an LC tank circuit to achieve resonance and efficient wireless power transfer. A high-frequency isolation transformer is used to ensure safety and improved performance in subsequent stages. The system incorporates an interleaved PWM rectifier to convert AC back to DC for charging the EV battery. The overall operation is optimized using an Artificial Neural Network (ANN)-based Maximum Power Point Tracking (MPPT) algorithm to maximize energy extraction from the PV system. A Proportional–Integral (PI) controller regulates the output voltage (V_act) to track the reference voltage (Vref), thereby enhancing system stability and efficiency. Finally, the project is implemented using MATLAB/Simulink 2024ª.