Design and performance analysis of networked predictive control systems based on input-output difference equation model

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• 作者：Zhong-Hua Pang ; Guo-Ping Liu ; Donghua Zhou…
• 关键词：Iput ; output model ; networked control systems (NCSs) ; performance analysis ; predictive control ; round ; trip time delay ; stability analysisn
• 刊名：International Journal of Control, Automation and Systems
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：15
• 期：1
• 页码：416-426
• 全文大小：
• 刊物类别：Engineering
• 刊物主题：Control, Robotics, Mechatronics;
• 出版者：Institute of Control, Robotics and Systems and The Korean Institute of Electrical Engineers
• ISSN：2005-4092
• 卷排序：15

文摘

This paper is concerned with the design and performance analysis of networked control systems, where random network-induced delay, packet disorder, and packet dropout in the feedback and forward channels are considered simultaneously and further treated as the round-trip time (RTT) delay. To actively compensate for the RTT delay, a networked predictive control scheme is designed based on the input-output difference equation model. For time-varying reference signals, the resulting closed-loop system can achieve the same output tracking performance and closed-loop stability as the corresponding local control system. Specifically, for the step reference input, it can provide a zero steady-state output tracking error. The controller design problem is solved by using the augmented state-space model as well as the static output feedback strategy. In addition, the stability of the closed-loop system is also discussed for the plant subject to bounded disturbances and modelling errors. Finally, simulation and experimental results are given to demonstrate the effectiveness of the proposed method.