Simulations on the Stability and Stabilization Method for Random Long Delay Network Control

2014 ◽  
Vol 494-495 ◽  
pp. 1385-1388
Author(s):  
Tian Wei Peng
Keyword(s):  
Control System ◽  
Closed Loop ◽  
Networked Control System ◽  
Network Control ◽  
Network Stability ◽  
Network Control System ◽  
Stabilization Method ◽  
Loop Network ◽  
Stability And Stabilization ◽  
The Stability

Networked Control System (NCS) is a class of feedback control system forming a closed loop through the communication network. Due to the nodes conflicts, poor network stability, limited data bandwidth and other uncontrollable factors in the transmission, network-induced delay is the main factor reducing system performance and stability. Studying the state feedback rules of Long Delay Network Control system, the author proposes Stability and stabilization method for Random Long Delay Network Control. The method models random long delay closed-loop network control system, compensate the delay and complete the network stability and stabilization. Finally, a numerical example is given to verify the validity of the conclusion.

scholarly journals Stability Analysis of Networked Control System Using LMI Approach

2018 ◽  
Vol 7 (2.31) ◽  
pp. 249
Author(s):  
Richa Sharma ◽  
Deepak Nagaria
Keyword(s):  
Communication Network ◽  
Control System ◽  
Closed Loop ◽  
Sampling Period ◽  
Networked Control System ◽  
Networked Control ◽  
Linear Matrix ◽  
Matlab Simulation ◽  
Closed Loop System ◽  
The Stability

Networked control system is a closed loop system in which information or data travel through the communication network. The presence of communication network will increase time delay and information losses. Due to these losses and delay the performance of the system decreases. This paper represents an analysis to find the stability of the networked control system with the varying time hindrances present in the network. In this research, it has been assumed that the delay in time is less than the sampling period. The stability conditions for NCS have been procured with the use of the Lyapunov function approach and has been described in terms of LMI(Linear Matrix Inequality).This examination confirm the adequate state of stability through MATLAB simulation and the numerical case demonstrates the outcome.  

Simulation of Fault Detection in the Wireless Networked Control System

2013 ◽  
Vol 846-847 ◽  
pp. 778-781
Author(s):  
Hong Liang Guo ◽  
Shao Ying Kong
Keyword(s):  
Control System ◽  
Time Delay ◽  
Fault Detection ◽  
Wireless Network ◽  
Detection Method ◽  
State Space Model ◽  
Failure Detection ◽  
Networked Control System ◽  
Network Control ◽  
Network Control System

Wireless network control system is characterized by high uncertain delay time, thus the state of the system can not be fully observed. The fault characteristic is interfered by time delay so to be unstable, leading inaccurate fault detection. Traditional fault detection method of wireless network control system is usually based on the characteristics of the stability of the network status data. If the network has time delay fluctuations, it is unable to obtain accurate fault detection results. This paper presents a stochastic delay fault detection method. It builds a state space model of the system, analyzes the delay vector between the sensor end of the system and the controller end, depending on the delay residual signal of the system and the corresponding evaluation function to obtain the system failure detection result. The final simulation result shows that this method has high accuracy in the detection of Stability and randomness of the wireless network fault detection. Thus it is an effective wireless network control system fault detection method.

scholarly journals New Stability Criteria for Event-Triggered Nonlinear Networked Control System with Time Delay

Complexity ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Hongqian Lu ◽  
Yue Hu ◽  
Chaoqun Guo ◽  
Wuneng Zhou
Keyword(s):  
Control System ◽  
Time Delay ◽  
Networked Control System ◽  
Networked Control ◽  
Stability Criteria ◽  
Stability And Stabilization ◽  
The Stability ◽  
Nonlinear Networked Control System ◽  
System With Time Delay ◽  
Event Triggered

This note focuses on the stability and stabilization problem of nonlinear networked control system with time delay. To alleviate the burden of transformation channel and shorten the dynamic process simultaneously, an improved event-triggered scheme is proposed. This paper employs an improved time delay method to enhance the performance and reduce the delay upper bound conservatism. Less conservative stability criteria related to the order N are derived by establishing an augmented Lyapunov-Krasovskii functional manufactured for the use of Bessel-Legendre inequality. In addition, an event-triggered controller is designed for nonlinear networked control system with time delay. At last, numerical examples are proposed to verify the effectiveness of the new method.

Study on Stability and Robust Control of Stochastic Network Control System

2014 ◽  
Vol 602-605 ◽  
pp. 1023-1026 ◽  
Author(s):  
Cheng Wang ◽  
Cong Jun Rao
Keyword(s):  
Control System ◽  
Robust Control ◽  
Research Trends ◽  
Network Control ◽  
Stochastic Network ◽  
Information Control ◽  
Feedback Control System ◽  
Network Control System ◽  
The Stability ◽  
Main Ideas

Network control system is a feedback control system of realizing the exchange of information control system in different regional components by using the digital communication. Focusing on the stability and robust control of stochastic network control system, this paper introduces the research history and the newest research trends, and presents many widespread theoretical and applications problems. Moreover, assumptions, main ideas, and conclusions of literature related to stochastic network control system are reviewed and commented.

The Stability Conditions Evaluation of Network Control System Based on Double Time Delay Discrete Model

2013 ◽  
Vol 846-847 ◽  
pp. 112-115
Author(s):  
Ling Ding ◽  
Ping Fan ◽  
Bin Wen
Keyword(s):  
Control System ◽  
Time Delay ◽  
Control Systems ◽  
Discrete Model ◽  
Network Control ◽  
System Stability ◽  
Stability Conditions ◽  
Network Control System ◽  
Network Control Systems ◽  
The Stability

The current study of network control stability system has become a very hot topic, the stability conditions of network control systems have also carried out the relevant research on double delay discrete model, its main target to the current actual situation, which carries out the related stability for network control systems with state time-delay. This paper uses the relevant stability theory, the sufficient condition of network control system stability are described under the time-delay discrete model, on the basis of relevant transformation, completing the evaluation for the network control system stability condition of double delay discrete model. Finally, through the relevant data, to carry on its effectiveness validated. The method has certain reference significance for the stability study of similar system, and provides a theoretical reference for the research on this problem.

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.

Design of Networked Control System of Vehicle Body Based on Hybrid Scheduling Algorithm

2014 ◽  
Vol 898 ◽  
pp. 887-891
Author(s):  
Yu Zhu ◽  
Shun Yue Wang ◽  
Yu Qiao ◽  
Tian Hao Wang ◽  
Jun Dong Zhang ◽  
...  
Keyword(s):  
Control System ◽  
Information Transmission ◽  
Real Time ◽  
Scheduling Algorithm ◽  
Networked Control System ◽  
Network Control ◽  
The Body ◽  
Vehicle Body ◽  
Network Control System ◽  
Hybrid Scheduling

Along with the body control system is becoming more intelligent, making the body network scale and the communication load increase dramatically, transmission delay of information in the body network is increasing obvious, greatly reduces the system's real-time performance and reliability. Based on the analysis of body network communication needs, we design the reasonable body CAN network topology structure. According to the characteristics of information transmission of the body network control system, designed a hybrid scheduling algorithm is applied to the body network control system, and is verified by experiments on the performance. Experimental results show that the design method of body network system can effectively guarantee the real-time and feasibility of information transmission, and optimized the body network control system as a whole.

SIMULATION OF ATTACK ON SYNCHRONIZATION NETWORK CONTROL SYSTEM

2020 ◽  
Vol 72 ◽  
pp. 35-47
Author(s):  
A. K. Kanaev ◽  
◽  
A. N. Gorbach ◽  
E. V. Oparin, ◽  
◽  
...  
Keyword(s):  
Control System ◽  
Network Control ◽  
Network Control System
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