HARMONIC ANALYSIS AND MODELLING OF MAGNETISATION PROCESS IN SOFT FERROMAGNETIC MATERIAL

Facta Universitatis, Series: Electronics and Energetics

ovidiu Caltun²  Alenka Milovanovic¹  Branko Milan Koprivica¹  Ioan Dumitru² 

[1] University of Kragujevac, Faculty of Technical Sciences Čačak, Čačak, Serbia$$;Ioan Cuza University of Iasi, Faculty of Physics, Iasi, Romania$$

关键词: Ferromagnetic core;    FFT and harmonic analysis;    magnetic hysteresis;    sinusoidal and triangular excitation magnetic field;    sinusoidal induction;   

DOI  :  10.2298/FUEE1701121K

来源: University of Nis

【 摘 要 】

The aim of this paper is to present a research of magnetic hysteresis loops of a toroidal ferromagnetic core made of electrical steel. The experimental results of induced voltage, magnetic induction and hysteresis loop obtained at different frequencies of the sinusoidal excitation magnetic field have been presented. The harmonic content of the induced voltage and magnetic induction have been calculated using Fast Fourier Transformation. Observed variation of higher harmonics with frequency has been correlated to the mechanism of magnetic domain walls damping. A variation of harmonics of the magnetic induction with the amplitude of the excitation magnetic field has been analysed and a proper mathematical model has been proposed. Furthermore, the influence of the triangularly shaped excitation magnetic field and the distorted shape excitation that produces sinusoidal induction on the shape of hysteresis loop and harmonic content of the induced voltage and the magnetic induction has been analysed and discussed.

【 授权许可】

Unknown