publication . Book . 1996

Use of the Riccati Equation On-Line for Adaptively Controlling a CSTS Distillation Column

Edwards, J.B.; Mohd Noor, S.B.;
Open Access English
  • Published: 01 Aug 1996
  • Publisher: Department of Automatic Control and Systems Engineering
  • Country: United Kingdom
Abstract
A third order CSTS model for the separation dynamics of packed distillation columns is converted to a form expressed in terms of deviations of input and output from steady-state. This form has been found to be necessary for the application of the Banks' method of On-Line Riccati Control. The state-dependant coefficient matrices of the process are derived analytically in terms of the fundamental length, volatility and capacitance parameters of the process. Having successfully tested the modified model against the original, whole-value, simulation model and against analytic behavioural prediction, simulation experiments are conducted, comparing the responses and c...
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