scholarly journals Sampled-data observers for delay systems and hyperbolic PDE–ODE loops

Automatica ◽  
2021 ◽  
Vol 123 ◽  
pp. 109349
Author(s):  
Tarek Ahmed-Ali ◽  
Iasson Karafyllis ◽  
Fouad Giri
Keyword(s):  
Delay Systems ◽  
Sampled Data ◽  
Hyperbolic Pde

scholarly journals Sampled-Data Stabilization of Nonlinear Delay Systems With a Compact Absorbing Set

2015 ◽  
Vol 48 (12) ◽  
pp. 410-415 ◽  
Author(s):  
Iasson Karafyllis ◽  
Miroslav Krstic
Keyword(s):  
Delay Systems ◽  
Absorbing Set ◽  
Sampled Data ◽  
Nonlinear Delay

Sampled-Data Optimal Design and Robust Stabilization

1992 ◽  
Vol 114 (4) ◽  
pp. 538-543 ◽  
Author(s):  
Tongwen Chen ◽  
Bruce A. Francis
Keyword(s):  
Time Delay ◽  
Discrete Time ◽  
Robust Stabilization ◽  
Disturbance Attenuation ◽  
Delay Systems ◽  
Time Delay Systems ◽  
Sampled Data ◽  
Design Problems ◽  
Data Control ◽  
Time Problem

This paper considers sampled-data control of time-delay systems. First we show that under a certain nonpathological sampling condition, a sampled-data system is internally stable in continuous time if and only if the corresponding discretized system is stable in discrete time. Based on this, we then study two sampled-data design problems for (unstable) time-delay systems: ℋ2-optimal disturbance attenuation and robust stabilization. In both cases, the sampled-data problem can be recast via operator methods as exactly a discrete-time problem and hence be solved using known techniques.

Sampled-data control for time-delay systems

2002 ◽  
Vol 339 (2) ◽  
pp. 231-238 ◽  
Author(s):  
Lisheng Hu ◽  
Yongyan Cao ◽  
Chuwang Cheng ◽  
Huihe Shao
Keyword(s):  
Time Delay ◽  
Delay Systems ◽  
Time Delay Systems ◽  
Sampled Data ◽  
Data Control ◽  
Sampled Data Control

Dissipativity-Based Reliable Sampled-Data Control With Nonlinear Actuator Faults

2016 ◽  
Vol 11 (6) ◽  
Author(s):  
Srimanta Santra ◽  
R. Sakthivel ◽  
B. Kaviarasan
Keyword(s):  
Sufficient Conditions ◽  
Control Design ◽  
Delay Systems ◽  
Linear Matrix ◽  
Optimization Approach ◽  
Actuator Faults ◽  
Sampled Data ◽  
Data Control ◽  
Sampled Data Control ◽  
Data Controller

In this paper, the problem of reliable sampled-data control design with strict dissipativity for a class of linear continuous-time-delay systems against nonlinear actuator faults is studied. The main objective of this paper is to design a reliable sampled-data controller to ensure a strictly dissipative performance for the closed-loop system. Based on the linear matrix inequality (LMI) optimization approach and Wirtinger-based integral inequality, a new set of sufficient conditions is established for reliable dissipativity analysis of the considered system by assuming the mixed actuator fault matrix to be known. Then, the proposed result is extended to unknown fault matrix case. Also, the reliable sampled-data controller with strict dissipativity is designed by solving a convex optimization problem which can be easily solved by using standard numerical algorithms. Finally, a numerical example based on liquid propellant rocket motor with a pressure feeding system model is presented to illustrate the effectiveness of the developed control design technique.

Robustness bounds for sampled-data linear time-delay systems

1999 ◽  
Vol 32 (2) ◽  
pp. 1667-1672
Author(s):  
Fouad Al-Sunni ◽  
El-Kébir Boukas
Keyword(s):  
Time Delay ◽  
Linear Time ◽  
Delay Systems ◽  
Time Delay Systems ◽  
Sampled Data
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