scholarly journals Optimal tracking control for networked control systems with random time delays and packet dropouts

2015 ◽  
Vol 11 (4) ◽  
pp. 1343-1354 ◽  
Author(s):  
Ying Wu ◽  
◽  
Zhaohui Yuan ◽  
Yanpeng Wu ◽  
Keyword(s):  
Control Systems ◽  
Tracking Control ◽  
Time Delays ◽  
Networked Control Systems ◽  
Networked Control ◽  
Random Time ◽  
Packet Dropouts ◽  
Optimal Tracking ◽  
Optimal Tracking Control

scholarly journals Modeling and Output Feedback Control of Networked Control Systems with Both Time Delays; and Packet Dropouts

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Li Qiu ◽  
Qin Luo ◽  
Shanbin Li ◽  
Bugong Xu
Keyword(s):  
Control Systems ◽  
Output Feedback ◽  
Time Delays ◽  
Controller Design ◽  
Networked Control Systems ◽  
Feedback Controller ◽  
Networked Control ◽  
Random Time ◽  
Packet Dropouts ◽  
Output Feedback Controller

This paper is concerned with the problem of modeling and output feedback controller design for a class of discrete-time networked control systems (NCSs) with time delays and packet dropouts. A Markovian jumping method is proposed to deal with random time delays and packet dropouts. Different from the previous studies on the issue, the characteristics of networked communication delays and packet dropouts can be truly reflected by the unified model; namely, both sensor-to-controller (S-C) and controller-to-actuator (C-A) time delays, and packet dropouts are modeled and their history behavior is described by multiple Markov chains. The resulting closed-loop system is described by a new Markovian jump linear system (MJLS) with Markov delays model. Based on Lyapunov stability theory and linear matrix inequality (LMI) method, sufficient conditions of the stochastic stability and output feedback controller design method for NCSs with random time delays and packet dropouts are presented. A numerical example is given to illustrate the effectiveness of the proposed method.

scholarly journals Stability Analysis of Networked Control Systems with Random Time Delays and Packet Dropouts Modeled by Markov Chains

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Li Qiu ◽  
Fengqi Yao ◽  
Xiaopin Zhong
Keyword(s):  
Stability Analysis ◽  
Markov Chains ◽  
Control Systems ◽  
Time Delays ◽  
Networked Control Systems ◽  
Sufficient Conditions ◽  
Networked Control ◽  
Random Time ◽  
Communication Link ◽  
Packet Dropouts

This paper investigates the stability analysis problem for a class of discrete-time networked control systems (NCSs) with random time delays and packet dropouts based on unified Markov jump model. The random time delays and packet dropouts existed in feedback communication link are modeled by two independent Markov chains; the resulting closed-loop system is described by a new Markovian jump linear system (MJLS) with Markov delays. Sufficient conditions of the stochastic stability for NCSs is obtained by constructing a novel Lyapunov functional, and the mode-dependent output feedback controller design method is presented based on linear matrix inequality (LMI) technique. A numerical example is given to illustrate the effectiveness of the proposed method.

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