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Shaping of molecular weight distribution using B-spline based predictive probability density function control

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4 Author(s)
Hong Yue ; Control Syst. Centre, Univ. of Manchester Inst. of Sci. & Technol., UK ; Jinfang Zhang ; Hong Wang ; Liulin Cao

Issues of modelling and control of molecular weight distributions (MWDs) of polymerization products have been studied under the recently developed framework of stochastic distribution control, where the purpose is to design the required control inputs that can effectively shape the output probability density functions (PDFs) of the dynamic stochastic systems. The B-spline neural network has been implemented to approximate the function of MWDs provided by the mechanism model, based on which a new predictive PDF control strategy has been developed. A simulation study of MWD control of a pilot-plant styrene polymerization process has been given to demonstrate the effectiveness of the algorithms.

Published in:

American Control Conference, 2004. Proceedings of the 2004  (Volume:4 )

Date of Conference:

June 30 2004-July 2 2004