Design and Performance Evaluation of a Wireless Energy Transfer System for Dynamic Charging of Electric Vehicles

A dynamic wireless charging system can substantially increase the driving range of an electric vehicle by charging the battery as the vehicle moves. However, the high expenditure required for the infrastructure poses a challenge, and efforts must be made to reduce these costs for successful implementation of the system. Wireless Energy Transfer (WET) is emerging as a dependable and efficient method for clean energy transmission. As fossil fuel depletion accelerates electric vehicles (EVs) are anticipated to replace traditional gasoline-powered vehicles. The Wireless E-Bike Battery Charging System (WEBCS) is relies on Inductive Energy Transfer (IET), It involves two coupled coils—one linked to the grid and the other to a rechargeable 36V LiFePO4 battery (10Ah, 20Ah, 30Ah), delivering 200W to 1kW.A DC-DC stage IPT model is developed, analyzing coil specifications such as diameter, turns, air gaps (3 cm–15 mm), and section diameters (3 mm–5 mm) to optimize efficiency. Frequency variations between 1kHz and 150kHz and currents up to 50A are considered. ANSYS Maxwell is used to model the magnetic properties of the coils., and a mathematical model is validated with literature data, paving the way for further advancements in wireless e-bike charging technology.