WPT System Coupling Inductors: Exploring Pareto Optimal Solutions

Wireless Power Transfer (WPT) Systems could be used instead of traditional cable connection to a power station. Nevertheless, these systems are affected by the magnetic characteristic of the coupling coils, so that these devices should be carefully designed. In this paper, a pair of faced pancake coils equipped with ferrite concentrators is considered. The possible geometries of the coils are obtained using suitable genetic optimization algorithms searching for optimal mutual inductance and saving in copper. This paper presents the analysis of the Pareto solutions obtained using automatic design strategy.