Quantized stabilization of networked control systems with actuator saturation

• Published in: International journal of robust and nonlinear control Vol. 26; no. 16; pp. 3595 - 3610
• Main Authors: Yang, Hongjiu, Xia, Yuanqing, Yuan, Huanhuan, Yan, Jingjing
• Format: Journal Article
• Language: English
• Published: Bognor Regis Blackwell Publishing Ltd 10.11.2016; Wiley Subscription Services, Inc
• Subjects: actuator saturation; Actuators; Control systems; delta operator system; Feedback control; Linear operators; networked control system; packets dropout; Quantization; Saturation; Stability; Stabilization
• ISSN: 1049-8923; 1099-1239
• DOI: 10.1002/rnc.3525

Summary In this paper, we investigate the problems of stabilization of networked control systems with quantization and actuator saturation via delta operator approach. The definition of the domain of attraction for delta operator systems is introduced to analyze the stochastic stability of the closed‐loop networked control systems. The quantizer is a uniform one with arbitrary quantization regions, and the packet dropout process is modeled as a Bernoulli process. On the basis of the zoom strategy and Lyapunov theory in delta domain, sufficient conditions are given for the closed‐loop delta operator systems to be mean square stable, and the feedback controllers are designed to ensure the stability of networked control systems. A single link direct joint driven manipulator model is presented to show the effectiveness of the main results. Copyright © 2016 John Wiley & Sons, Ltd.