A Simple Approach for Determination of Numerical Values of Ferrite Nonlinear Susceptibilities

IEEE Transactions on Magnetics 2020
Arnis Gulbis, Diāna Maļinovska, Deniss Stepins, Mara Gulbe

This paper presents a straightforward approach to determination of numerical values of nonlinear susceptibilities of soft-magnetic ferrites. It is shown that numerical values of susceptibilities can be calculated from measured amplitudes of harmonics in output voltage of ferrite core transformer. For this purpose, useful expressions for the susceptibilities are derived and as example numerical values of the largest nonlinear susceptibilities those of the third and fifth order are calculated. Additionally, errors of measured susceptibilities also are determined. Based on the expressions obtained the analysis of phase shifts between components of flux density on different frequencies and the magnetic field strength also is performed. The comparison of calculated and measured output voltage waveforms allows concluding that in the frequency range where losses are small and can be neglected the susceptibility of third order is negative but that of fifth order is positive.

Atslēgas vārdi
Ferrites, Nonlinear susceptibilities, Harmonics, Transformers
DOI
10.1109/TMAG.2020.3003892
Hipersaite
https://ieeexplore.ieee.org/document/9122017

Gulbis, A., Maļinovska, D., Stepins, D., Gulbe, M. A Simple Approach for Determination of Numerical Values of Ferrite Nonlinear Susceptibilities. IEEE Transactions on Magnetics, 2020, Vol. 56, No. 9, Article number 2000706. ISSN 0018-9464. e-ISSN 1941-0069. Pieejams: doi:10.1109/TMAG.2020.3003892

Publikācijas valoda
English (en)