[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5391/JKIIS.2002.12.6.559

Design of Fuzzy Output Feedback Controller for The Nonlinear Systems with Time -Delay

Shin, Hyun-Seok (KCS Lab., Dept. of Electrical and Electronic Engr., Yonsei Univ)
Kim, Eun-Tai (KCS Lab., Dept. of Electrical and Electronic Engr., Yonsei Univ)
Park, Mignon (KCS Lab., Dept. of Electrical and Electronic Engr., Yonsei Univ)

Publication Information

Journal of the Korean Institute of Intelligent Systems / v.12, no.6, 2002 , pp. 559-564 More about this Journal

Abstract

This Paper Proposes a design method of a fuzzy output feedback controller for the nonlinear systems with the unknown time- delay. Recently, Cao et ai. proposed a stabilization method for the nonlinear time-delay systems using a fuzzy controller when the time-delay is known. However, the time-delay is likely to be unknown in practical. We represent the nonlinear systems with the unknown time-delay by Takagi-Sugeno (T-5) fuzzy model and design the fuzzy observer and the parallel distributed compensation (PDC) law based on this observer. By applying Lyapunov-Krasovskii theorem to the closed-loop system, the sufficient condition for the asymptotic stability of the equilibrium Point is derived and converted into the linear matrix inequality (LMI) Problem.

Keywords

T-S fuzzy system; time-delay; output feedback control; LMI;

Citations & Related Records

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