Simulations for Time Delay Compensation in Networked Control Systems
Time delay plays a critical role in the performance of real-time Networked Control Systems (NCS). It can destabilise the NCS as it deteriorates the performance and stability of networked control systems. Communication networks inevitably introduce delays in NCS. Therefore, it is necessary to compensate the time delay. The time taken by the system depends upon the characteristics of the network such as topology and routing algorithms used in the network. However, this paper adopts the prediction based delay compensation technique by the use of Smith Predictor. The stability analysis has been done for different plant transfer functions. Transport layer protocol User Datagram Protocol (UDP) has been used for communication. Simulations have been done with help of MATLAB/Simulink.