Analysis and implementation of wireless charger for electric vehicle

Wireless Power Transmission (WPT) represents the future of scientific research and is attracting a lot of attention due to its promise of being of interest to the economy thanks to its ease of integration, less wiring, less used material resources, security, flexibility, and ease of integration for various applications. This article frames recent research activities on the WPT, including its history, the fundamental theory of magnetic resonance coupling, and the application of this technologyin the charging of electric vehicles. These wireless chargers offer us an embedded system with less wiring and more safety. It also facilitates maintenance. These more intelligent systems offer us as well more efficiency to manage the transfer of power depending on the operation frequency, the geometric shape of the electromagnetic core (the flat coils) and the optimization algorithm for system management. Magnetic Resonant power transfer coupling is utilized to boost the performance of the power transmission between the two coils circuits of the wireless transformer. An analysis of magnetic parameters that characterize coils is performed, and the simulation results using ANSYS Maxwell are reported. To improve the transmission distance and address the change in effective capacity due to the variable distance and misalignment problem, the examination involves a proposed system using the perturbation and observation technique. Indeed, it is proved that the addition of a negative inductance circuit is more prolific in practical terms for a better efficiency of the coupled coils. The theoretical approach and the obtained simulation results are systematically supported by an experimental validation test that highlights the efficiency of the proposed system, where it offers us a more performance of 19% compared to the traditional wireless battery charger systems.