Performance Of Network Control Systems

As the expanding of the whole control system and continuous development of network technology,traditional point-to-point architecture was replaced by the networked control architecture which has great deal of advantage.However, implementing a network control system induces inevitable time delays,packet loss, reordering,multiple-packet transmission and so on that degrade system performance and can even cause instability.Using TrueTime network simulation toolbox,this paper put up the simulation model of power station superheated steam temperature networked control system by means of Combination of modules and programs,on the basis,studied its optimal control strategies at the condition of different network environment,and then compared their response performance.Experiments show that Fuzzy&PID control strategy can adapt to the changes of network environment and has a better control performance and robustness.