Title :
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.
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;
Conference_Titel :
Industrial Technology, 2005. ICIT 2005. IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-9484-4
DOI :
10.1109/ICIT.2005.1600810
