Parameter identification of magnetic coupled resonators in power wireless transfer systems

Abstract

This paper presents a procedure for wireless power transfer system (WPTS) parameter identification using ANSYS Extractor Q3D Program. For this, ANSYS Extractor Q3D Program is used to compute the C, L, R and G matrices, for different configurations, structures, frequencies and distances between coils. C and G - the matrices that are generated by the software from the field simulator outputs - are in a Maxwell matrix format. Since a standard SPICE component has only two terminals, the software derives a SPICE matrix format from the Maxwell capacitance and conductance elements. For the inductance and resistance matrices the both formats have the same structure. If, for each two magnetic coupled resonators we keep the same relative position between the two coils, the same number of turns, the same geometrical dimension of the conductors and the same conductor materials, but we change their structures and configurations, finally, we can select the solution which determines the optimal performances of the WPTS.