scholarly journals Output-Feedback Controller Design of a Wireless Networked Control System with Packet Loss and Time Delay

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Zhen Hong ◽  
JinFeng Gao ◽  
Ning Wang
Keyword(s):  
Control System ◽  
Closed Loop ◽  
Controller Design ◽  
Sampling Period ◽  
Networked Control System ◽  
Network Control ◽  
Packet Dropout ◽  
Time Varying ◽  
Time Varying Delay ◽  
Varying Delay

This paper investigates the problem of modeling and stabilization of a wireless network control system (NCS) with both time-varying delay and packet-dropout. And the time-varying delay can be more or less than one sampling period. The wireless NCS is modeled as an asynchronous dynamic system (ADS) with three subsystems. Sufficient condition of the closed-loop NCS to be stable is obtained by using the ADS approach. A numerical example is presented to demonstrate the effectiveness of the proposed result.

Research on Stability of Networked Control System with Uncertain Time-Varying Delays

2011 ◽  
Vol 383-390 ◽  
pp. 2138-2144
Author(s):  
Wei Hao Ma ◽  
Chao Yong Jin
Keyword(s):  
Control System ◽  
Sampling Period ◽  
Networked Control System ◽  
Networked Control ◽  
Sufficient Condition ◽  
Time Varying ◽  
Matrix Inequalities ◽  
Time Varying Delay ◽  
Uncertain Time ◽  
Varying Delay

This note deals with the problem of stability for networked control system (NCS) with uncertain time-varying delay that is less than on sampling period. A new stability scheme was proposed. Using an Lyapunov function, less conservative stability sufficient condition was derived for such system based on liner matrix inequalities (LMs). Finally a numerical example shows the superiority of the method in this paper.

A New Stabilizing Controller Design Based on the Wireless Networked Control System

2013 ◽  
Vol 331 ◽  
pp. 294-298
Author(s):  
Xiao Hua Guo
Keyword(s):  
Control System ◽  
Controller Design ◽  
Networked Control System ◽  
Network Control ◽  
Linear Matrix ◽  
Stabilizing Controller ◽  
Loop Control ◽  
Time Varying Delay ◽  
Loop Control System ◽  
Close Loop Control

In order to improve the performance of the network control system based on the wireless sensor networks, a multi-hopping wireless communication and their effect on network time-varying delay is analyzed, and a new stabilizing controller is proposed based on the a clientserver model in this paper. Using of the linear matrix inequality and switched control system theory to obtain the stabilizing conditions of the close loop control system and give the output feedback controller design approach. Preliminary experimentation indicates the rationality and effectiveness of the proposed control algorithm.

scholarly journals Event-Triggered Stability Analysis of Semi-Markovian Jump Networked Control System with Actuator Faults and Time-Varying Delay via Bessel–Legendre Inequalities

Complexity ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-16 ◽  
Author(s):  
Hongqian Lu ◽  
Chaoqun Guo ◽  
Yue Hu ◽  
Wuneng Zhou
Keyword(s):  
Control System ◽  
Stability Analysis ◽  
Networked Control System ◽  
Time Varying ◽  
Actuator Faults ◽  
Markovian Jump ◽  
Time Varying Delay ◽  
The Stability ◽  
Varying Delay ◽  
Event Triggered

This paper discusses the stability of semi-Markovian jump networked control system containing time-varying delay and actuator faults. The system dynamic is optimized while the network resource is saved by introducing an improved static event-triggered mechanism. For deriving a less conservative stability criterion, the Bessel–Legendre inequalities approach is employed to the stability analysis and plays a major role. By constructing the enhanced Lyapunov–Krasovskii functional (LKF) relevant to the Legendre polynomials, a stability criterion with lower conservativeness indexed by N is derived, and the conservativeness will decrease as N increases. In addition, a controller is designed. To prove the validity of this paper, numerical examples are provided at the last.

Modelling and stabilization of a wireless network control system with time delay

2016 ◽  
Vol 40 (2) ◽  
pp. 640-646 ◽  
Author(s):  
Junqing Ma ◽  
Feng Pan ◽  
Liuwei Zhou ◽  
Wuneng Zhou ◽  
Zehao Wang
Keyword(s):  
Control System ◽  
Time Delay ◽  
Discrete Time ◽  
Network Control ◽  
Time Varying ◽  
Discrete Time System ◽  
Time System ◽  
Time Varying Delay ◽  
System With Time Delay ◽  
Varying Delay

This paper investigates the problem of modelling and stabilization for a wireless based network control system with time delay. A model for the discrete-time system with time-varying delay is established to describe the system, and a static controller is designed that takes the feedback from both state and output into account. Based on Lyapunov stability theory and the linear matrix inequalities method, a new criterion is presented for stabilizing the discrete-time system with time-varying delay, and the corresponding controller parameter is obtained. A numerical example is given to demonstrate the effectiveness of the proposed approach.

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