Optimized Design for Wireless Coil for Electric Vehicles Based on The Use of Magnetic Nano-Particles

Abstract

Wireless Power Transfer has been endorsed as an innovative technology for charging electric vehicles. Since the autonomy of the electric vehicles is a key factor, the optimization of the wireless coil is a fundamental step in the design of these systems. The main inconveniences of these coils are the high weight and the fragility of ferrite. As a solution, some manufacturers are proposing coating the coil with polymers. New compound magnetic material based on magnetic ferromagnetic nanoparticles embedded in a polymeric material can offer significant mechanical advantages, withstanding mechanical vibrations, and concurrently improving the magnetic behaviour. In this paper, an optimization process by Finite Element Method will be performed, reducing the volume of ferrite and introducing the magnetic compound to keep the same magnetic features.