How are managed magnetic materials with non linear properties in Steady State Magnetic application?
Altair EmployeeIn a Steady state AC Magnetic application, the unknown variables (potentials) and the physical quantities which derive from them (magnetic field strength and magnetic flux density) are sinusoidally time-varying. Thus, the representation by complex images is used, and the solution is obtained with only one solving. Hence, it is not possible to take into account magnetic materials with nonlinear characteristics. In fact, in the presence of nonlinear materials, the magnetic field strength H and the magnetic flux density B cannot vary simultaneously sinusoidally.
To take into consideration the previously stated contradictions, approximations are carried out in the proposed models of magnetization.
The computation B(H) dependence is modified with respect to the proposed model for nonlinear magnetization based on the equivalence of magnetic energy. We then speak of an equivalent B(H) characteristic based on the energetic equivalence method.