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Nonlinear inferential multi-rate control of Kappa number at multiple locations in a continuous pulp digester

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Title Nonlinear inferential multi-rate control of Kappa number at multiple locations in a continuous pulp digester
 
Creator PADHIYAR, NITIN
GUPTA, AKHIL
GAUTAM, ABHISHEK
BHARTIYA, SHARAD
DOYLE III, FRANCIS J
DASH, SACHI
GAIKWAD, SUJIT
 
Subject nonlinear control system
predictive control system
process control
pulp cooking
 
Description The continuous pulp digester represents a large-scale, distributed parameter system. Control of the spatial profile of degree of cooking, characterized by the Kappa number, rather than its endpoint value can effectively control properties that are dependent on the history of cooking. However, profile control of such large-scale distributed parameter systems throws up new challenges in estimation and control. We design a nonlinear model predictive controller using a multi-rate extended Kalman filter to infer and control discrete points along the Kappa number profile. Both, the plant and controller models are based on first principles. The design is tested for significant mismatches in parameters, initial state errors, and stochastic disturbances in the entering wood composition.
 
Publisher Elsevier
 
Date 2009-02-18T12:11:23Z
2011-11-25T17:30:30Z
2011-12-26T13:06:26Z
2011-12-27T05:54:16Z
2009-02-18T12:11:23Z
2011-11-25T17:30:30Z
2011-12-26T13:06:26Z
2011-12-27T05:54:16Z
2006
 
Type Article
 
Identifier Journal of Process Control 16(10), 1037-1053
0959-1524
http://dx.doi.org/10.1016/j.jprocont.2006.07.003
http://hdl.handle.net/10054/707
http://dspace.library.iitb.ac.in/xmlui/handle/10054/707
 
Language en