A Dynamic Core Loss Model for Soft Ferromagnetic and Power Ferrite Materials in Transient Finite Element Analysis

摘要

A dynamic core loss model is proposed to estimate core loss in both soft ferromagnetic and power ferrite materials with nonsinusoidal flux waveforms. The computation is based on standard core loss coefficients that are either directly provided by manufacturers, or can be extracted from the loss curve associated with sinusoidal excitation. The model is used to calculate the core loss in both 2D and 3D transient finite element analysis, and the results are compared with measured data.