Digital sliding mode control for Maglev rotors

Author

Tsai, Nan-Chyuan ; Hsu, Sheng-Liang ; Chen, Chien-Ting ; Chiang, Chao-Wen

Author_Institution

Dept. of Mech. Eng., Nat. Cheng Kung Univ., Tainan

fYear

2006

fDate

14-16 June 2006

Abstract

A digital sliding mode controller (DSMC) is synthesized to account for the singular perturbation impacts of an electromagnetically suspended rotor system. The order-reduction method is employed to simplify the design and lower down the order of controllers. The DSMC exhibits superior performance in terms of closed-loop stiffness, rise time and overshoot, in comparison to output feedback control and pole assignment. The presented DSMC not only stabilizes the inherently unstable open-loop system, but also preserves the robustness with respect to the parasitic parameter variation

Keywords

control system synthesis; feedback; magnetic levitation; open loop systems; pole assignment; position control; robust control; rotors; singularly perturbed systems; variable structure systems; Maglev rotor system; digital sliding mode control; digital sliding mode controller; electromagnetically suspended rotor system; open loop system; order reduction method; output feedback control; parasitic parameter variation; pole assignment; singular perturbation impact; Control system synthesis; Control systems; Digital control; Electromagnetic modeling; Magnetic levitation; Mathematical model; Open loop systems; Output feedback; Robustness; Sliding mode control;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2006

Conference_Location

Minneapolis, MN

Print_ISBN

1-4244-0209-3

Electronic_ISBN

1-4244-0209-3

Type

conf

DOI

10.1109/ACC.2006.1657439

Filename

1657439