Title of Paper:An alternative approach to H-infinity control for fuzzy systems

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Date of Publication:2008-07-01

Journal:ASIAN JOURNAL OF CONTROL

Included Journals:SCIE、EI

Volume:10

Issue:4

Page Number:405-419

ISSN No.:1561-8625

Key Words:H-infinity dynamic feedback control; fuzzy dynamic systems; linear matrix inequalities (LMIs)

Abstract:In this paper the problem of H-infinity dynamic feedback control for fuzzy dynamic systems has been Studied. First the problem of H-infinity dynamic feedback controller designs for complex nonlinear systems, which can be represented by Takagi-Sugeno (T-S) fuzzy systems, is presented. Second, based oil a Lyapunov function, four new dynamic feedback H-infinity fuzzy controllers are developed by adequately considering the interactions among all fuzzy sub-systems and these dynamic feedback H-infinity controllers call be obtained by solving a set of suitable linear matrix inequalities. Finally, two examples are given to demonstrate the effectiveness of the proposed design methods.