Time-stamped dynamic matrix control for networked control systems

Author

Zhang, Qizhi ; Lin, Chen ; Chen, Peiying

Author_Institution

Dept. of Autom., Shanghai Jiao Tong Univ.

fYear

2005

fDate

14-17 Dec. 2005

Firstpage

1159

Lastpage

1163

Abstract

To deal with network induced random delays shorter than one sampling period in networked control systems, the segmented time-stamped dynamic matrix control is proposed. Through correcting the vectors of step response coefficients and control coefficients at each control step based on measured delays by time-stamping the sensor data, the control performance is improved. The algorithm description and program realization are given, and a segmented approximation algorithm is also introduced to reduce the calculation burden for the controller. Then the algorithm was validated in a networked control system based on the TrueTime simulator, and better performance is obtained in controlling a DC motor in shared Ethernet compared to standard dynamic matrix control algorithm

Keywords

delays; distributed control; predictive control; DC motor control; Ethernet; TrueTime simulator; network induced random delays; networked control systems; segmented approximation algorithm; time-stamped dynamic matrix control; Automatic control; Communication system control; Control systems; Delay; Ethernet networks; Networked control systems; Open loop systems; Predictive control; Predictive models; Sampling methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Technology, 2005. ICIT 2005. IEEE International Conference on

Conference_Location

Hong Kong

Print_ISBN

0-7803-9484-4

Type

conf

DOI

10.1109/ICIT.2005.1600810

Filename

1600810