Síntese de controladores robustos H2/H[infinito] D- estáveis via algoritmos evolutivos : uma abordagem LMI

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

This work is concerned with the mixed H2/H1 robust control problem combined with robust D−stability in linear matrix inequality (LMI) regions. Continuous-time linear systems subject to polytopic parametric uncertainties are studied. Based on Evolutionary Algorithms and LMIs, an hybrid algorithm is presented for numerical computation of a robust fixed-order (static or dynamic) output feedback controller. This approach does not require tha all specifications are enforced by a single closed-loop Lyapunov function. This fact allows to reduce the conservatism of the usual existing methods. In addition, this approach can be used for synthesis of reduced or full order controllers. Examples borrowed from the literature are discussed to validate this approach.

ASSUNTO(S)

teoria do controle engenharia de producao sistemas de controle por realimentação computação evolucionária

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