Time-Domain Homogenized Finite Eddy Current Analysis Using Recursive Convolution Method

This article presents a novel method for effectively and accurately performing time-domain homogenized finite-element analysis of multi-turn coil windings. In this method, the macroscopic complex permeability is represented by a partial fraction form, and then, the inverse Laplace transformation is performed using the recursive convolution (RC) method. The proposed method is approximately
$100\times $
faster than the conventional finite-element analysis, with good agreement between the obtained results. Moreover, the results obtained by the proposed method were also in good agreement with those obtained by measurement.