Robust multivariable feedback design for an extractive distillation column
DSpace at IIT Bombay
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Title |
Robust multivariable feedback design for an extractive distillation column
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Creator |
NATARAJ, PSV
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Subject |
multivariable control systems
control system synthesis frequency domain analysis distillation column time domain synthesis system stability |
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Description |
In this paper, multivariable quantitative feedback theory (QFT) techniques are used to synthesize a robust feedback system for an extractive distillation column with a vaporous sidestream. The simplified state space model of Gilles and Retzbach (1983) for an extractive distillation column exhibiting sharp temperature profiles is adopted here. Large uncertainty of +20% is assumed in three key matrix elements of this model. The feedback design problem is to find the controller and prefilter matrices such that the stated tracking specifications are met, over the entire range of model parametric uncertainty. The fourth MIMO QFT technique of Yaniv and Horowitz (1986) is used to solve the design problem. The design is verified through extensive simulations in both frequency and time domains, for several plants picked from the plant uncertainty set. In all cases, the results obtained are quite satisfactory.
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Publisher |
IEEE
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Date |
2009-06-15T04:03:23Z
2011-11-28T08:21:42Z 2011-12-15T09:57:39Z 2009-06-15T04:03:23Z 2011-11-28T08:21:42Z 2011-12-15T09:57:39Z 1994 |
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Identifier |
Proceedings of the International Conference on Control (V 2), Coventry, UK, 21-23 March 1994, 1554-1559
0-85296-610-5 10.1049/cp:19940369 http://hdl.handle.net/10054/1486 http://dspace.library.iitb.ac.in/xmlui/handle/10054/1486 |
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Language |
en
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