Robust implementation of a variable structure control scheme

Author

Diong, B.M. ; Medanic, J.V.

Author_Institution

Illinois Univ., Urbana, IL, USA

fYear

1990

fDate

5-7 Dec 1990

Firstpage

3458

Abstract

The simplex method of designing sliding motion in variable structure systems is analyzed. It is shown that a linear state observer can be used to recover asymptotically the properties of the system designed assuming the state was available for feedback. Since the presence of disturbances can lead to poor performance of the closed-loop system, a method of attenuating the effect of these disturbances, in the H_∞-norm sense, is then considered for plants that are known exactly and for plants with structured uncertainty. Two examples are presented to illustrate the results: disturbance rejection, and robust stabilization and disturbance rejection

Keywords

control system synthesis; stability; variable structure systems; H_∞-norm; closed-loop system; control design; disturbance attenuation; disturbance rejection; linear state observer; robust stabilization; simplex method; sliding motion; structured uncertainty; variable structure control scheme; Control systems; Design methodology; Motion analysis; Motion control; Robust control; Sliding mode control; State feedback; Switches; Variable structure systems; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 1990., Proceedings of the 29th IEEE Conference on

Conference_Location

Honolulu, HI

Type

conf

DOI

10.1109/CDC.1990.203445

Filename

203445