Stability of networked control systems: explicit analysis of delay

Recent technological advances have enabled distributed control systems to be implemented via networks. This allows feedback control loops to be closed over a shared communication channel. Network-induced delays are inevitable, however, when transmitting digital data between control devices. This paper analyzes the stability of such networked control systems (NCS). We first review some previous work on this topic, offering some improvements. We analyze the influence of the sampling rate and network delay on system stability. We further study the stability of NCS using a hybrid system stability analysis technique.

[1]  Robert L. Grossman,et al.  Timed Automata , 1999, CAV.

[2]  Asok Ray,et al.  Integrated Communication and Control Systems: Part I—Analysis , 1988 .

[3]  M. Branicky.  Stability of hybrid systems: state of the art , 1997, Proceedings of the 36th IEEE Conference on Decision and Control.

[4]  Karl Johan Åström,et al.  Computer-Controlled Systems: Theory and Design , 1984 .

[5]  Johan Nilsson,et al.  Real-Time Control Systems with Delays , 1998 .

[6]  Linda Bushnell,et al.  Stability analysis of networked control systems , 1999, Proceedings of the 1999 American Control Conference (Cat. No. 99CH36251).

[7]  Gene F. Franklin,et al.  Digital control of dynamic systems , 1980 .