DocumentCode
1414855
Title
A vector oriented control for a magnetically levitated shaft
Author
De Miras, Jereme ; Charara, Ali
Author_Institution
UTC, CNRS, Compiegne, France
Volume
34
Issue
4
fYear
1998
fDate
7/1/1998 12:00:00 AM
Firstpage
2039
Lastpage
2041
Abstract
Considering the nonlinear model of active magnetic bearings, a new means of nonlinear control is presented which treats variables as rotating vectors in the control plane, specially the unbalance. It becomes easy to cancel out the effect of this perturbation in a rotating reference. Therefore, the rotor can rotate around any desired point, particularly the geometric center or the center of gravity. Simulations illustrate the efficacy of this control law
Keywords
Lyapunov methods; asymptotic stability; compensation; control system synthesis; machine bearings; machine control; magnetic levitation; nonlinear control systems; observers; state estimation; state feedback; three-term control; vectors; active magnetic bearings; center of gravity; control law; geometric center; magnetically levitated shaft; nonlinear control; nonlinear model; rotating vectors; unbalance; vector oriented control; Actuators; Coils; Equations; Force control; Gravity; Magnetic levitation; Magnetic variables control; Open loop systems; Rotors; Shafts;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.706785
Filename
706785
Link To Document