Details

Autor(en) / Beteiligte

• Sabariego, Ruth V.
• Vanbroekhoven, Brent
• Gyselinck, Johan
• Kuo-Peng, Patrick

Titel

RL-Ladder Circuit Models for Eddy-Current Problems With Translational Movement

Ist Teil von

• IEEE transactions on magnetics, 2022-09, Vol.58 (9), p.1-4

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2022

Link zum Volltext

• IEEE_Xplore

Quelle

IEEE Xplore Digital Library

Beschreibungen/Notizen

• This article proposes an adaptive equivalent <inline-formula> <tex-math notation="LaTeX">RL </tex-math></inline-formula>-circuit model for eddy-current devices with a single electrical port (one terminal voltage and current) and translational movement. The device is first characterized by means of frequency-domain finite-element computations in the relevant frequency and position intervals, for subsequently fitting constant-coefficient <inline-formula> <tex-math notation="LaTeX">RL </tex-math></inline-formula>-ladder circuits of adjustable size (i.e., variable number of branches and loops). The accuracy of the ladder-circuit model is assessed in both the frequency and time domains. The time-varying position involves the force computation from the circuit and the coupling with the mechanical equation. By way of validation, we study the axisymmetric magnetic-levitation device of TEAM Workshop problem 28. Results exhibit good convergence to reference finite-element ones with increasing number of branches.