Title :
Eddy current and hysteresis losses in ferromagnetic media
Author :
Machado, V. Maló ; Ribeiro, A. Lopes
Author_Institution :
Centro de Electrotecnia Teorica e Med. Electr., Inst. Superior Tecnico, Lisbon, Portugal
fDate :
7/1/1998 12:00:00 AM
Abstract :
This paper is a contribution to the evaluation of losses in ferromagnetic media, due to eddy currents and magnetic hysteresis, the field source being the time harmonic induced e.m.f. The fundamental field equations are solved numerically by using a finite element formulation, corresponding to the space discretization, and a second order trapezoidal (Crank-Nickolson) method for the time integration. The method is applied to a soft ferromagnetic sample, being the magnetic hysteresis simulated by using a classical Preisach model
Keywords :
eddy current losses; ferromagnetism; magnetic anisotropy; magnetic hysteresis; classical Preisach model; eddy current losses; ferromagnetic media; hysteresis losses; magnetic hysteresis; second order trapezoidal Crank-Nickolson method; soft ferromagnetic sample; space discretization; time harmonic induced EMF; Boundary conditions; Eddy currents; Electromagnetic fields; Finite element methods; Integral equations; Magnetic fields; Magnetic flux density; Magnetic hysteresis; Magnetic materials; Magnetic properties;
Journal_Title :
Magnetics, IEEE Transactions on
