Title :
An improved DMC algorithm used in measurement failure and it´s application for paper machine control
Author :
Fuming, Wu ; Demin, Sun ; Jingbo, Zheng
Author_Institution :
Dept. of Autom., Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
This paper presents an improved dynamic matrix control (DMC) algorithm that is suitable for measurement failure and its application for the baseweight control of a paper machine. The main idea of the refined DMC algorithm is to replace the output of a plant with the model output of DMC when measurement failure happens, that is, to control the model by using DMC. To achieve the aim of accurate prediction of the plant output when measurement failure happened, the standard model based prediction in DMC algorithm is improved by replacing the open loop prediction with a close loop prediction. This proposed algorithm has been applied to baseweight control of a paper machine, and the results show that it can process the measurement failure caused by paper breakage in the production process
Keywords :
closed loop systems; multivariable control systems; paper industry; predictive control; process control; weight control; baseweight control; close loop prediction; dynamic matrix control; measurement failure; model based prediction; model output; paper machine control; predictive control; production process; Automatic control; Error correction; Frequency estimation; Industrial control; Paper making machines; Prediction algorithms; Predictive models; Process control; Sun; Switches;
Conference_Titel :
Industrial Technology, 1994., Proceedings of the IEEE International Conference on
Conference_Location :
Guangzhou
Print_ISBN :
0-7803-1978-8
DOI :
10.1109/ICIT.1994.467197
