Complex Reluctivity and Dynamic Hysteresis Model for Soft Magnetic Composite Materials

TL;DR

This paper introduces a physically interpretable Cauer network model for soft magnetic composite materials, capturing their reluctivity and hysteresis behavior in both frequency and time domains.

Contribution

It presents a novel closed-form Cauer network reluctivity model with parameters that have clear physical meanings, applicable to soft magnetic composites.

Findings

Model parameters include particle and insulation properties.

The model is valid in both frequency and time domains.

Parameters are derived assuming beta-distributed particle volumes.

Abstract

In this article, we derive a Cauer network reluctivity model for soft magnetic composite materials. The Cauer network components are closed-form expressions consisting only of such parameters that have a clear physical meaning. The parameters include particle permeability, particle conductivity, insulation permeability, insulation thickness, volume fraction, mean particle diameter, variance of particle diameters, and maximal particle diameter. The particle volumes are assumed to be beta-distributed. Since the model is a network, it is immediately available in both frequency- and time domains.