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Time-stamped dynamic matrix control for networked control systems

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3 Author(s)
Qizhi Zhang ; Dept. of Autom., Shanghai Jiao Tong Univ. ; Chen Lin ; Peiying Chen

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

Published in:

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

Date of Conference:

14-17 Dec. 2005

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