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Author Gilles, E.D. ♦ Retzbach, B.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1980
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Other branches of engineering
Subject Keyword Temperature control ♦ Distillation equipment ♦ Control system synthesis ♦ Optimal control ♦ Large-scale systems ♦ State estimation ♦ Equations ♦ System testing ♦ Observers ♦ Feeds
Abstract The dynamic behaviour of distillation columns with sharp temperature profiles is investigated by simulation using a full set of balance equations, The simulation results lead to considerably simplified dynamic models which are applied in the design of the control systems. Two examples are presented: A state observer and an optimal control have been employed in the control of a large-scale extractive distillation column. The control algorithm was programmed into a µ-processor and was implemented in a large-scale plant at HOECHST-AG (Frankfurt). The system has proved its high reliability and efficiency in extensive field tests and in two years of continuous operation. A state observer and a KALMAN-filter is used to estimate the state variables and unknown feed disturbance of a distillation column with a vapour side stream. These estimated values are fed to an optimal state feedback with disturbance variable compensation. Simulation results show that this control system ensures the product specifications, even if large disturbances occur.
Description Author affiliation: Universität Stuttgart, Stuttgart, GFR (Gilles, E.D.; Retzbach, B.)
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1980-12-10
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 437.15 kB
Page Count 6
Starting Page 865
Ending Page 870

Source: IEEE Xplore Digital Library