Simulation and Analysis to Control Algorithms of the Large Time-Delay System Based on Simulink

Article Preview

Abstract:

Because of the universal existence of time-delay phenomenon in industrial process control, this paper analyzes the characteristics of two kinds of control methods, discusses the relations between general control algorithm and Smith predictor compensation, and simulated studies the mismatch of model, the change of delay time and the effect of the disturbance to the system. Simulation results show that: improved Smith predictor controller has the advantages of fast response and low overshoot. Especially in the case of the mismatch of model, it has better robustness and stronger anti-interference ability. The improved Smith predictor brings a good quality, which has little sensitivity to the model parameters. It provides a kind of method to overcome the time delay.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 532-533)

Pages:

654-658

Citation:

Online since:

June 2012

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Jin Yihui. Process control[M]. Beijing: Tsinghua university press, 1996: 136-140.

Google Scholar

[2] Guo Yangkuan, Wang Zhenglin. Process control engineering and simulation based on MATLAB/SIMULINK[M]. Beijing: Publishing House of Electronics Industry, (2009).

Google Scholar

[3] Zhang Quanzhuang, Lan Yu. Application of Smith Predictor in Large Time-delay System. Machine Tool & Hydraulics, 2006(4): 170-171.

Google Scholar

[4] Hu Xuejun, Teng Da, Hu Linwen. Simulation and analysis to control algorithms of the time-delay object based on MATLAB. Journal of Wuhan Institute of Technology, 2010, 32(3): 92-95.

Google Scholar

[5] Dong Fang. The study and simulation on the control methods in large time delay system based on Smith predictor [J]. Manufacturing Automation, 2010, 32(8): 177-179.

Google Scholar

[6] Zhang Junying, Yang Maying, Xie Qi. Control Methods for Time Delay Systems[J], Control Engineering of China. 2002, 9(6): 91-93.

Google Scholar