Time-delay Compensation Method for Networked Control System Based on Time-delay Prediction and Implicit PIGPC  

作　　者：Zhong-Da Tian Xian-Wen Gao Bi-Lian Gong Tong Shi 

机构地区：[1]School of Information Science and Engineering, Shenyang University of Technology [2]School of Information Science and Engineering, Northeastern University [3]Department of Humanities, Liaoning Forestry Vocation-Technical College

出　　处：《International Journal of Automation and computing》2015年第6期648-656,共9页国际自动化与计算杂志（英文版）

基　　金：supported by National Natural Science Foundation of China(No.61034005);Liaoning Province Doctor Startup Fund(No.20141070)

摘　　要：A network time-delay compensation method based on time-delay prediction and implicit proportional-integral-based generalized predictive controller(PIGPC) is proposed. The least squares support vector machine(LSSVM) is used to predict the current time-delay, the parameters of the least squares support vector machine are optimized by particle swarm optimization(PSO) algorithm,and the predicted time-delay is used instead of the actual time-delay as the parameters of the network time-delay compensation controller. In order to improve the compensation effect of implicit generalized predictive controller(GPC), this paper puts forward an implicit generalized predictive control algorithm with proportional-integral-based(PI) structure and designs the controller based on implicit PIGPC. Through the simulation results, the effectiveness of this design in the paper is verified.A network time-delay compensation method based on time-delay prediction and implicit proportional-integral-based generalized predictive controller(PIGPC) is proposed. The least squares support vector machine(LSSVM) is used to predict the current time-delay, the parameters of the least squares support vector machine are optimized by particle swarm optimization(PSO) algorithm,and the predicted time-delay is used instead of the actual time-delay as the parameters of the network time-delay compensation controller. In order to improve the compensation effect of implicit generalized predictive controller(GPC), this paper puts forward an implicit generalized predictive control algorithm with proportional-integral-based(PI) structure and designs the controller based on implicit PIGPC. Through the simulation results, the effectiveness of this design in the paper is verified.

关 键 词：Networked control system time-delay compensation P 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]