Discrete sliding mode control of systems with unmatched uncertainty using multirate output feedback

Author

Janardhanan, S. ; Bandyopadhyay, B.

Author_Institution

Programme in Syst. & Control Eng., Indian Inst. of Technol., Mumbai, India

Volume

51

Issue

6

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

1030

Lastpage

1035

Abstract

Systems with uncertainties and disturbances are common in practice. In some cases, these disturbances are unmatched. Moreover, in most cases the entire state information is also not available for control purpose. This note proposes a control algorithm for achieving quasi-sliding mode in discrete-time linear time-invariant (LTI) systems with bounded unmatched uncertainties. A multirate output feedback based strategy is used for this purpose. The proposed algorithm is illustrated through an example.

Keywords

discrete time systems; feedback; linear systems; uncertain systems; variable structure systems; discrete sliding mode control; discrete-time linear time-invariant systems; multirate output feedback; quasi sliding mode; unmatched uncertainty; Control systems; Output feedback; Robust control; Sampling methods; Sliding mode control; State estimation; State feedback; State-space methods; Terminology; Uncertainty; Discrete-time sliding mode; multirate output feedback; quasi-sliding mode; unmatched uncertainty;

fLanguage

English

Journal_Title

Automatic Control, IEEE Transactions on

Publisher

ieee

ISSN

0018-9286

Type

jour

DOI

10.1109/TAC.2006.876810

Filename

1643375