Effect of Network–Induced Delay on Stability in Networked Control System.

In this paper, effect of network-induced delay on stability in networked control systems has been discussed. Four conditions of network-induced delay have been considered. In first condition, delay is less than the sam- pling period. Second, delay is equal to the sampling period. Third, delay is longer than the sampling period and fourth, delay is integer multiple of sampling period. A full state feedback controller has been included in closed-loop system. The problem of stability has been described in two ways, first, in finding the roots of the characteristics equation and second, as a response to the initial conditions of the networked closed-loop system. This work has been illustrated with the help of a numerical example.