Abstract
This paper considers the problem of control of networked systems via output feedback. The controller consists of two parts: a state observer that estimates plant state from the output when it is available via the communication network, and a model of the plant that is used to generate a control signal when the plant output is not available from the network. Necessary and sufficient conditions for the exponential stability of the closed loop system are derived in terms of the networked dwell time and the system parameters. The results suggest simple procedures for designing the output feedback controller proposed. Numerical simulations show the feasibility and efficiency of the proposed methods.
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This work is supported by the National Natural Science Foundation of China (No. 69925307, No. 10372002, No. 60274001, and No. 60304014), the National Key Basic Research and Development Program (No. 2002CB312200), and the China Postdoctoral Program Foundation.
Shumei Mu received the B.S. and M.S. degrees all in Applied Mathematics from Inner Mongolia University in 1992 and 1999, respectively. She is now a Ph.D. candidate in Peking University. She was with the department of basic courses at Inner Mongolia Agricultural University from 1992 to 2002. Her research interests include networked control systems and collective behavior of multiagent systems.
Tianguang Chu received the PhD in Dynamics and Control from Tsinghua University (Beijing) in 1993. He was a visiting research fellow at the University of Melbourne in 2001, and is currently an associate professor of Peking University. His research interests include stability and control of nonlinear systems, networked systems, and collective behavior and coordinate control of multiagent systems.
Long Wang obtained his PhD in Dynamics and Control in 1992 from Peking University. He was a postdoctoral fellow in University of Toronto in 1993, and was an Alexander von Humboldt research fellow in German Aerospace Center from 1995 to 1997. He became a professor of Peking University in 1997. His research interest lies in the areas of networked systems, hybrid systems, robust control, robotics and swarm intelligence.
Wensheng Yu obtained his Ph.D in Dynamics and Control in 1998 from Peking University. He was a Visiting Research Fellow in University of Melbourne from 2001 to 2002. Now he is a Professor of Institute of Automation, Chinese Academy of Sciences. His currrent research interests include Robust and Optimal Control, Adaptive Filter Theory and Linear Estimation, Control Theory and Control Engineering, Robotics and Control, Complex Systems and Control, Signal Processing and Communications, Algorithms Research for Robust Control etc.
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Mu, S., Chu, T., Wang, L. et al. Output feedback control of networked systems. Int J Automat Comput 1, 26–34 (2004). https://doi.org/10.1007/s11633-004-0026-5
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DOI: https://doi.org/10.1007/s11633-004-0026-5