Research Of Networked Control System Base On Intelligent PID Control Algorithm

With the rapid development of industrial control technology and computer networktechnology, Network control system has been paid more and more attention. But becauseof inherent delay in network, which makes the whole network control system is extremelyunstable.Therefore,designing a suitable control algorithm, which reduces the overshoot of time delayin network control system and can make the whole system stable quickly,is becoming a pressingmatter of the moment.This paper is mainly to research the network delay control algorithm of network controlsystem. An fuzzy PID control algorithm and an improved particle swarm optimization algorithmof neural network PID control algorithm are put forward respectively. Designed and realized thesoftware system of network delay in network control system completely, andcompared and analysed performance of the two kinds of algorithm with time delay in networkcontrol systems based on MATLAB2010. The main research work and innovations are as follows:(1) Research on fuzzy PID algorithm.The paper proposes a PID control algorithm based on fuzzy control,and this algorithmadjusts PID parameters on-line by using fuzzy principle which based on thetraditional PID control algorithm. The simulation results show that the algorithm has a fastresponse speed, stable performance effect for time delay system in network control.(2) Research on an improved particle swarm optimization neural network PID controlalgorithm.This paper proposes a neural network PID control algorithm based on improved particleswarm optimization algorithm.This algorithm uses the improved particle swarm optimizationalgorithm to control the weights of the neural network based on the neural network PID algorithm.The simulation results show that the algorithm has quick response speed, high stability forthe multi input multi output system with high coupling. It is suitable for the network delay control(3) Design and real time simulation of the network delay time control system basedon MATLAB.Develop and design a network control system based on MATLAB2010softwaredevelopment tools. And simulation the two network delay control algorithm proposed in thepaper by using the network control system.