Incremental Permeability AC Solution about a DC Operating Point


David Meeker
04Jan2014

Introduction

The problem of computing the impedance of a system about a DC operating point arises with regularity during the study of electric machines. Two examples are:


A recent version of FEMM 4.3 has the capability of computing incremental permeability solutions based on the DC operating point simulated in a linked solution. This note explains the incremental permeability formulation and demonstrates its use through a tutorial example.

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