2006
DOI: 10.1590/s0103-17592006000200009
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Synthesis of an LMI-based fuzzy control system with guaranteed cost performance: a piecewise Lyapunov approach

Abstract: A new stability analysis and design of a fuzzy switching control based on uncertain Takagi-Sugeno fuzzy systems are proposed. The fuzzy system adopted is composed by a family of local linear uncertain systems with aggregation. The control design proposed uses local state feedback gains obtained from an optimization problem with guaranteed cost performance formulated in the context of linear matrix inequalities and a fuzzy switching scheme built from local Lyapunov functions. The global stability is guaranteed … Show more

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Cited by 11 publications
(9 citation statements)
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References 21 publications
(34 reference statements)
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“…Recently, there have been many successful applications of fuzzy control to nonlinear systems (Arrifano and Oliveira, 2002a;Arrifano and Oliveira, 2002b;Nascimento et al, 2002;Teixeira andŻak, 1999;Tanaka et al, 1998;Wang et al, 1996). In general, the fuzzy control design considers a nonlocal approach which is conceptually simple and straightforward, where linear feedback control techniques can be used (Wang et al, 1996).…”
Section: Introductionmentioning
confidence: 99%
“…Recently, there have been many successful applications of fuzzy control to nonlinear systems (Arrifano and Oliveira, 2002a;Arrifano and Oliveira, 2002b;Nascimento et al, 2002;Teixeira andŻak, 1999;Tanaka et al, 1998;Wang et al, 1996). In general, the fuzzy control design considers a nonlocal approach which is conceptually simple and straightforward, where linear feedback control techniques can be used (Wang et al, 1996).…”
Section: Introductionmentioning
confidence: 99%
“…Essa modelagem resulta em um sistema afim de ordem três, em que a gravidadeé tratada como uma força externa constante. Como o sistema que representa o levitadoré não linear, posteriormente, esse sistemaé estudado usando modelos fuzzy Takagi-Sugeno (TS) [1]. Em [3], os autores exploram propriedades de eletricidade para realizar o projeto de controle em função da corrente, eliminando a variável tensão do modelo matemático.…”
Section: Introductionunclassified
“…Como [1,3] realizam a modelagem considerando uma massa constante e o levitador fixo em uma superfície rígida, então neste trabalhoé proposto um projeto de controle robusto para um levitador magnético sujeito a vibrações na base. O modelo matemáticoé desenvolvido com base no resultado apresentado em [3] e a massa do objeto a ser levitadó e considerada um parâmetro incerto que pode variar dentro de uma faixa prefixada.…”
Section: Introductionunclassified
“…This interest has also increased for nonlinear systems and several papers have been published on switched Takagi-Sugeno fuzzy systems. In general, these studies use switching rules based on regions that depend on the premise variables and/or membership functions and/or state variables [9][10][11][12][13][14][15][16][17][18].…”
Section: Introductionmentioning
confidence: 99%