Actas de congresos
Robust Periodic Observer-based Control For Periodic Discrete-time Ltv Systems
Registro en:
978-1-4673-8682-1
2017 American Control Conference (acc). Ieee, p. 2942 - 2947, 2016.
0743-1619
WOS:000388376103001
10.1109/ACC.2016.7525366
Autor
Agulhari
Cristiano M.; Lacerda
Marcio J.
Institución
Resumen
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) New conditions for the design of robust periodic observer-based controllers for periodic discrete-time linear time-varying (LTV) systems are proposed in this paper. The control system is designed to be robust to external noises, and such robustness is achieved by minimizing the H-infinity norm from the input noise to the error output in the observer design, and the H-infinity norm from the error and disturbance signal to the output in the control design. Concerning the observer, two LMI (Linear Matrix Inequality) conditions are proposed. As part of the main contribution, an LMI condition, based on a dual representation of the LTV system, is also proposed for the synthesis of a robust state-feedback controller that makes use of the observed states rather than the actual states. A numerical example illustrates the validity of the proposed technique. 2942 2947 Brazilian agency CAPES [2014/03669-1, 2015/00269-5] Brazilian agency CNPq [2014/03669-1, 2015/00269-5] Brazilian agency Sao Paulo Research Foundation (FAPESP) [2014/03669-1, 2015/00269-5] Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) American Control Conference (ACC) JUL 06-08, 2016 Boston, MA