2D nonlinear electrical model of a ferrite inductor which reproduces saturation and power losses in its core Articles uri icon

publication date

  • March 2014

start page

  • 401

end page

  • 407

issue

  • 3-4

volume

  • 44

international standard serial number (ISSN)

  • 1383-5416

electronic international standard serial number (EISSN)

  • 1875-8800

abstract

  • We propose a model of an equivalent electrical circuit specifically designed for a ferrite inductor excited by a non-sinusoidal 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; converters; simulation