Synthesis of an LMI-based fuzzy control system with guaranteed cost performance: a piecewise Lyapunov approach

Texto completo
Autor(es):	Natache S. D. Arrifano ^[1] ; Vilma A. Oliveira ^[2] ; Lúcia V. Cossi ^[3] Número total de Autores: 3
Afiliação do(s) autor(es):	^[1] Universidade de São Paulo. Departamento de Engenharia Elétrica - Brasil ^[2] Universidade de São Paulo. Departamento de Engenharia Elétrica - Brasil ^[3] Universidade Federal da Paraíba. Departamento de Matemática - Brasil Número total de Afiliações: 3
Tipo de documento:	Artigo Científico
Fonte:	Sba : Controle & Automação; v. 17, n. 2, p. 213-225, 2006-06-00.
Resumo
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 by considering a class of piecewise quadratic Lyapunov functions. Examples are given to illustrate the applicability of the proposed approach. (AU)

Processo FAPESP:	00/05060-1 - Estabilidade robusta e estabilizacao de sistemas nao-lineares incertos com parametros descritos por saltos markovianos.
Beneficiário:	Natache do Socorro Dias Arrifano Sassim
Modalidade de apoio:	Bolsas no Brasil - Doutorado