Projetos de controladores de ordem reduzida atraves de otimização sequencial irrestrita

AUTOR(ES)

Wilbert Josias Ramires Pongo

DATA DE PUBLICAÇÃO

1998

RESUMO

The objective of this work is to address the problem of designing control systems through sequential unconstrained optimization techniques. Recent works demonstrate the computational viability of translating performance specifications through convex closed-Ioop functionals, which allow an efficient treatment of the control design problem. The main advantage of the techniques employed in this work is to avoid the time-consuming computation of subgradients. The first part of the work discusses the formulation of the control design problem as a standard optimization problem and the specific methods used to obtain optimal solutions. The second part of the work deals with the problem of reducing the optimal (but higher orders) controllers through the observers theory and certain similarity transformations that can be carried out over the nominal controllers obtained by optimization techniques

ASSUNTO(S)

otimização matematica sistemas de controle por realimentação

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