Nonlinear control of a large gap 2-DOF magnetic bearing system based on a coupled force model

Author

de Queiroz, M.S. ; Dawson, D.M. ; Suri, A.

Author_Institution

Dept. of Electr. & Comput. Eng., Clemson Univ., SC, USA

Volume

3

fYear

1997

fDate

4-6 Jun 1997

Firstpage

2165

Abstract

We utilize a nonlinear coupled force model for a two degree-of-freedom large gap active magnetic bearing system to develop a nonlinear backstepping-type controller for the full order electromechanical system. The force coupled model mandates the design of a new commutation strategy to ensure that the desired force is applied to the rotor. The controller requires measurement of the rotor position, rotor velocity, and stator current and achieves global exponent rotor position tracking. Simulations are provided to illustrate the performance of the controller

Keywords

commutation; force control; magnetic levitation; nonlinear control systems; position control; rotors; stators; backstepping; commutation; coupled force model; electromechanical system; full order system; magnetic bearing system; nonlinear control systems; position control; rotor; stator current; tracking; Control systems; Couplings; Current measurement; Electromechanical systems; Force control; Magnetic levitation; Nonlinear control systems; Position measurement; Velocity control; Velocity measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 1997. Proceedings of the 1997

Conference_Location

Albuquerque, NM

ISSN

0743-1619

Print_ISBN

0-7803-3832-4

Type

conf

DOI

10.1109/ACC.1997.611075

Filename

611075