Numerical Values of MnZn Ferrite Nonlinear Susceptibilities in a Lossless Approximation

2017 IEEE 58th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON): Proceedings 2017
Arnis Gulbis, Diāna Maļinovska, Deniss Stepins, Mara Gulbe

On the basis of expressions for nonlinear magnetic susceptibilities of soft ferrites obtained earlier the analysis of phase shifts between components of flux density on different frequencies and the magnetic field strength is carried out. Only the largest nonlinear susceptibilities those of third and fifth order are considered. It is shown 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. These statements allow explaining the shape of output voltage of toroidal transformer with soft ferrite core induced by strong harmonic field strength in the input. Numerical values of nonlinear susceptibilities of third and fifth order as well as that of the first order are determined on the basis of theoretically calculated and experimentally measured harmonics of output voltage of transformer.

Keywords
Ferrites, Nonlinear susceptibilities, Harmonics, Transformers, Losses
DOI
10.1109/RTUCON.2017.8124801
Hyperlink
http://ieeexplore.ieee.org/document/8124801/

Gulbis, A., Maļinovska, D., Stepins, D., Gulbe, M. Numerical Values of MnZn Ferrite Nonlinear Susceptibilities in a Lossless Approximation. In: 2017 IEEE 58th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON): Proceedings, Latvia, Riga, 12-13 October, 2017. Piscataway: IEEE, 2017, pp.1-6. ISBN 978-1-5386-3847-7. e-ISBN 978-1-5386-3846-0. Available from: doi:10.1109/RTUCON.2017.8124801

Publication language
English (en)