Sliding mode control with fuzzy tuning

Author

Ha, Q.P. ; Negnevitsky, M. ; Man, Z.

Author_Institution

Dept. of Electr. & Electron. Eng., Tasmania Univ., Hobart, Tas., Australia

fYear

1996

fDate

18-20 Nov 1996

Firstpage

216

Lastpage

219

Abstract

The paper presents a new technique for linearised systems with uncertainties using sliding mode control with fuzzy tuning. The control signal consists of three components: the equivalent control for assigning the sliding eigenvalues of the nominal closed-loop system, the robust control for driving the representative point to the sliding hyperplane in the reaching phase, and the fuzzy tuned control for accelerating the reaching time and reducing the influence of unstructured uncertainty. Chattering is also taken into account. The validity of the proposed approach is verified by the control of a two-mass servo system. Simulation results show that the controlled system is highly robust against parameter and load variations, and backlash nonlinearity

Keywords

eigenvalues and eigenfunctions; fuzzy control; fuzzy systems; linear systems; robust control; servomechanisms; simulation; tuning; uncertainty handling; variable structure systems; backlash nonlinearity; chattering; control signal; equivalent control; fuzzy tuned control; fuzzy tuning; linearised systems; load variations; nominal closed-loop system; parameter variations; reaching phase; reaching time acceleration; representative point driving; robust control; simulation; sliding eigenvalue assignment; sliding hyperplane; sliding mode control; two-mass servo system control; uncertainties; unstructured uncertainty; Acceleration; Control system synthesis; Control systems; Eigenvalues and eigenfunctions; Fuzzy control; Fuzzy systems; Robust control; Servomechanisms; Sliding mode control; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Information Systems, 1996., Australian and New Zealand Conference on

Conference_Location

Adelaide, SA

Print_ISBN

0-7803-3667-4

Type

conf

DOI

10.1109/ANZIIS.1996.573939

Filename

573939