H-infinity static output-feedback controllers with past outputs for discrete-time uncertain linear systems

Autor(es)

Frezzatto, Luciano ; Oliveira, Ricardo C. L. F. ; Peres, Pedro L. D. ; IEEE

• Tipo de documento: Artigo Científico
• Fonte: 2018 ANNUAL AMERICAN CONTROL CONFERENCE (ACC); v. N/A, p. 6-pg., 2018-01-01.

Resumo

This work investigates the problem of designing robust H-infinity static output-feedback controllers for uncertain linear discrete time-invariant systems where all matrices are supposed to be affected by polytopic uncertainties. The proposed control law employs a fixed number of past measured outputs, thus enhancing the dynamics of the closedloop system and producing controllers with memory. The method for synthesizing the memory controllers relies on a two-phase algorithm. In the first phase a parameter-dependent state-feedback gain is designed and, then, it is used as input to the second phase in which the robust memory static output-feedback controller is synthesized. Numerical examples illustrate the advantages of the proposed approach in terms of H-infinity performance when compared to other methods available in the literature. (AU)

• Processo FAPESP: 17/01771-1 - Projeto de controladores e filtros para sistemas nebulosos e sistemas híbridos utilizando LMIs: Aplicações e extensões
• Beneficiário: Luciano Antonio Frezzatto Santos
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado