Nonlinear inferential multi-rate control of Kappa number at multiple locations in a continuous pulp digester
DSpace at IIT Bombay
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Title |
Nonlinear inferential multi-rate control of Kappa number at multiple locations in a continuous pulp digester
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Creator |
PADHIYAR, NITIN
GUPTA, AKHIL GAUTAM, ABHISHEK BHARTIYA, SHARAD DOYLE III, FRANCIS J DASH, SACHI GAIKWAD, SUJIT |
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Subject |
nonlinear control system
predictive control system process control pulp cooking |
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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.
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Publisher |
Elsevier
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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 |
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Type |
Article
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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 |
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Language |
en
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