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Nonlinear disturbance decoupling control of a binary distillation column

✍ Scribed by Rafael Castro; Jaime Alvarez; Joaquin Alvarez

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 525 KB
Volume: 26
Category: Article
ISSN: 0005-1098
DOI: 10.1016/0005-1098(90)90027-f

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✦ Synopsis

An application of nonlinear feedback theory to the control of a binary distillation column is presented. The nonlinear control structure proposed allows the output of the process to be decoupled from external disturbances while it follows, asymptotically, a given trajectory. The internal stability of the resultant closed-loop system is analyzed together with the singularity problem of the decoupling matrix required to synthesize the control law; a nonlinear state estimator is also included. Some numerical results obtained when implementing the control-observer structure with the simulated process are shown.

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