Design and Implementation of a Multi-Source Hybrid EV Charging System with Wireless Power Transfer and RFID-Based Access Control

Abstract – The proliferation of electric vehicles (EVs) across global markets has introduced significant challenges related to charging infrastructure, particularly in remote and off-grid regions. This paper presents a smart hybrid EV charging system that integrates solar photovoltaic (PV) energy, wind turbine generation, and wireless power transfer technology based on inductive coupling through road-embedded copper coils. The proposed system employs an ATmega microcontroller with Radio Frequency Identification (RFID) authentication to enable secure, multi-mode charging for authorized users. Power management is achieved through a bidirectional converter interfacing a Battery Energy Storage System (BESS), regulated using a Proportional-Integral-Derivative (PID) controller. The on-grid configuration ensures continuous power supply, while the wireless charging mechanism eliminates physical connector wear. Experimental results validate the feasibility and effectiveness of this integrated approach in delivering reliable, sustainable, and secure EV charging without dependence on conventional grid infrastructure. Key Words: Electric vehicle charging, hybrid renewable energy, wireless power transfer, RFID authentication, solar photovoltaic, wind turbine, battery energy storage