| Full text | |
| Author(s): |
Frezzatto, Luciano
;
Oliveira, Ricardo C. L. F.
;
Peres, Pedro L. D.
Total Authors: 3
|
| Document type: | Journal article |
| Source: | IFAC PAPERSONLINE; v. 51, n. 25, p. 6-pg., 2018-01-01. |
| Abstract | |
This work investigates the problem of designing H-infinity and H-2 output-feedback controllers for discrete-time linear systems with time-invariant uncertainties. The proposed control law incorporates samples of the system output measurements over several instants of time, producing a controller with memory that can provide an improved performance to the closed-loop system. Sufficient parameter-dependent linear matrix inequality conditions are given for the computation of the gains associated with the incorporated measurements. A bound to the H-infinity or the H-2 norms of the closed-loop system is assured by means of a parameter-dependent Lyapunov matrix. Numerical examples illustrate the advantages of the proposed approach when compared to other methods from the literature, showing that better H-infinity and H-2 performance can be obtained by increasing the amount of information in the control law. (C) 2018, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved. (AU) | |
| FAPESP's process: | 13/05957-1 - Stability and control of dynamical systems: uncertainty, constraints and polynomial models |
| Grantee: | Luciano Antonio Frezzatto Santos |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 17/18785-5 - Parameter-Dependent Linear Matrix Inequalities Applied to Stability Analysis and Synthesis of Controllers and Filters for Uncertain Dynamic Systems |
| Grantee: | Pedro Luis Dias Peres |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 17/01771-1 - Controller and filtering design for fuzzy systems and hybrid systems through LMIs: Applications and extensions |
| Grantee: | Luciano Antonio Frezzatto Santos |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |