A Bidirectional Wireless Power Transfers for Electric Vehicle Charging in V2G and G2V Systems

Authors:
K. Arulvendhan, P. Srinivasan, Amal Babu

Addresses:
Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Ramapuram, Chennai, Tamil Nadu, India.

Abstract:

This paper describes the design and implementation of a Bidirectional Wireless Power Transfer (BWPT) system for EV charging and V2G integration as a key component of next-generation smart grid technologies. Grid-to-vehicle and vehicle-to-grid energy transmission between the EV and power grid is efficient, wireless, and contactless using the suggested technology. The hardware includes an Arduino UNO control module, a microcontroller-based logic processing board, receiver and transmitter boards, and an assembly of coils for inductive power transmission. A bidirectional DC-DC converter facilitates the transfer of energy in both directions and maintains its amplitude. A rectifier converts AC to DC, and a driver board controls the switching of power electronic devices. All units share a control panel and an AC-DC transformer for electrical isolation. The method transfers electricity wirelessly at 12 V via mutual inductance between two coils 30 cm apart. Eliminating plug-in connectors and mechanical wear makes the plugless system safer. Its flexibility makes it perfect for autonomous or dynamic charging applications. The system is designed for high efficiency, reliability, and scalability, while enabling two-way power flow in the smart grid. The paper validates the practicality and real-world application of BWPT systems for EV and V2G applications.

Keywords: Wireless Power Transfer; Inductive Power Transfer; Vehicle-To-Grid; Bi-Directional Charging; Smart Grid Technology; Electric Vehicles; DC Conversion; Energy Transfer; Mutual Inductance.

Received: 28/08/2024, Revised: 27/10/2024, Accepted: 08/12/2024, Published: 07/06/2025

DOI: 10.64091/ATIEL.2025.000121

AVE Trends in Intelligent Energy Letters, 2025 Vol. 1 No. 1 , Pages: 1-10

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