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Stabilization and Guaranteed Cost Control of Networked Control Systems with Long Time-Delay

Author: JiangJuan
Tutor: ZhuQiXin
School: East China Jiaotong University
Course: Proceedings of the
Keywords: Networked Control Systems long time-delay packet dropout model stabilization guaranteed cost control
CLC: TP273
Type: Master's thesis
Year: 2009
Downloads: 89
Quote: 0
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Abstract


Contrast to the system of piont-to-piont structure, Networked Control Systems have many advantages, as for, reduce the complicated phyiscis connection, can realize the resourse communion, realize the long-distant opertate and control, have high diagnose ability, installation and maintenance simple, can reduce the weight and cubage of system efficiently, increase systemic agility and reliability, and so on. As a result, Networked Control Systems have been widely applied to many complicated control systems. The problem of Networked Control Systems also received aboard attention of international scholar. The stabilization control and guaranteed cost control of Networked Control Systems with long time delay are analyzed The modeling, analysis and control of Networked Control Systems with long time-delay and packet dropout are studied in this dissertation when the controlled process is linear time-invariant system.Firstly, Based on the controlled process that is linear time-invariant system, the network-induced delay is viewed as time-varying parameter uncertainties. The uncertainty parameters model of networked control systems with long time-delay is set up. The existing conditions of asymptotic stability for networked control system are presented by Lyapunov method and robust control theory. The design method of stabilization controller for networked control system is proposed in terms of linear matrix inequalities. The design method of guaranteed cost state feedback controller for networked control system with long time-delay is proposed in terms of Linear matrix inequalities. Secondly, Based on the continuous and discrete time plants, the model of NCS with long time-delay, data packet dropout, data packet disordering and information loss is set up. Based on the model, stability of networked control systems with network-induced delay and data packet dropout is analyzed by Lyapunov method and Linear matrix inequalities. The necessary and sufficient conditions on the existence of the stabilizing controllers for such networked control systems are established. And the optimal controller is designed by principle of maximum.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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