Reduced-Order Dynamic Model of Permanent Magnet and HTSC Interaction in an Axisymmetric Frame

Author

Hearn, Clay S. ; Pratap, Siddharth B. ; Dongmei Chen ; Longoria, Raul G.

Author_Institution

Center forElectromechanics, Univ. of Texas at Austin, Austin, TX, USA

Volume

19

Issue

4

fYear

2014

fDate

Aug. 2014

Firstpage

1226

Lastpage

1233

Abstract

This paper presents a reduced order model for a permanent magnet (PM) and high-temperature superconductor (HTSC) in an axisymmetric frame. This model is formulated as a bond-graph to aid integration into system models for applications such as lift bearings, where the nonlinear force-displacement interactions are important for stability analysis and control design. The reduced-order model is based on the mechanical and electromagnetic interaction between a PM and bulk HTSC. Performance of the proposed reduced-order model is compared to finite element method (FEM) analysis and experimental tests to confirm the static and transient performance.

Keywords

bond graphs; control system analysis; control system synthesis; finite element analysis; high-temperature superconductors; permanent magnets; reduced order systems; stability; FEM analysis; HTSC interaction; axisymmetric frame; bond graph; control design; electromagnetic interaction; finite element method; high-temperature superconductor; lift bearings; mechanical interaction; nonlinear force-displacement interactions; permanent magnet; reduced-order dynamic model; stability analysis; Couplings; Dynamics; Finite element analysis; Force; Gyrators; Mathematical model; Type II superconductors; High-temperature superconductors (HTSCs); magnetic levitation; modeling; simulation;

fLanguage

English

Journal_Title

Mechatronics, IEEE/ASME Transactions on

Publisher

ieee

ISSN

1083-4435

Type

jour

DOI

10.1109/TMECH.2013.2277922

Filename

6587524