Affiliations: [a] Departamento de Tecnología Electrónica,
Escuela Politécnica Superior, Universidad Carlos III de Madrid,
Leganés (Madrid), Spain | Institute of Electrodynamics, Microwave and Circuit
Engineering, University of Technology, Vienna, Austria
Correspondence:
[*]
Corresponding author: Rosa Ana Salas, Departamento de
Tecnología Electrónica, Escuela Politécnica Superior,
Universidad Carlos III de Madrid, Avda. de la Universidad, 30, 28911,
Leganés (Madrid), Spain. Tel.: +34 91 624 88 64; Fax: +34 91 624 94 30;
E-mail: rsalas@ing.uc3m.es
Abstract: We propose a model of an equivalent electrical circuit specifically
designed for a ferrite inductor excited by a nonsinusoidal waveform valid for
use in an electronic circuit simulator. We estimate the model parameters by
means of Finite Elements in 2D which leads to significant computational
advantages over the 3D model. We carry out the validation of the procedure for
an RM14/I core by comparing the experimental and simulated output waveforms
obtained at different frequencies and levels of excitation from the linear to
the saturation regions. In addition, we consider the effect of power losses in
the core.
Keywords: Nonlinear inductors, Finite Element Analysis, core saturation effect, power losses
