Controller Research And Design Of Networked Control System

The network control system is a distributed control system which used network transmission. It is development under the background of integration of electronic technology, network communications, and computer control technology continuously. Widely used in the field of automation and control. As time delay, packet loss, the timing disorder and other issues, played a big impact on the network control system stability and efficiency of performance. Widespread concern of the network control system by scholars at home and abroad. Based on the existing problems, Some effective network transmission scheduling algorithms and controller design methods, proposed by the researchers. In this paper, Based on the network latency, packet loss different situation, discusses how to design the controller parameters which stable system.For network induction time delay, assume that the sensor node is time-driven,the controller and actuator are event-driven, network transmission exists only between the sensor and controller, while the delay sector is less than the cycle in a range described as the delay interval; Discrete linear continuous model, described as a Markov jump systems, Using stochastic process theory and the Lyapunov second method to prove the transition system is stochastically stable; Linear matrix inequalities be used to make the system calm conditions and get the controller gain matrix, and then design the feedback controller. Finally, Numerical calculation by the Matlab and LMI toolbox, concludes that the stability of the system controller parameters and corresponding gain matrices.For the packet lost situation. Proposed networked control systems with packet loss problem as a random process, Random packet loss process is modeled as a random Markov chain model performance as a class of Markov jump systems; using linear matrix inequalities and random probability theory, Obtained the mean square stable controller design method which is maintain the system about a class of known packet loss rate of the network control system. Finally, using Matlab, Got the controller parameters which in the success and lost case of packet transmission...