Numerical modelling and simulation of hysteresis effects in magnetic cores using transmission-line modelling and the Preisach theory

Abstract

The transmission-line modelling method and the Preisach theory are employed to model and simulate the hysteresis effects of magnetic cores. This combined approach provides a useful method, which allows fast and accurate prediction of magnetic core losses, and simple software implementation of the dynamic discrete model. The model can be developed easily, using data provided by core manufacturers and simple measurements. This paper describes, in a tutorial style, the numerical aspects and software implementation of the modelling and simulation of hysteresis for a magnetic core. Step-by-step procedures of the modelling and simulation are included, and demonstrated in a computer simulation. Both stimulated and measured results are presented.