Improved control structure for extractive divided-wall column with vapor recompression

2019 ◽  
Vol 149 ◽  
pp. 220-225 ◽  
Author(s):  
William L. Luyben
Keyword(s):  
Control Structure ◽  
Divided Wall Column ◽  
Vapor Recompression

Control of Catalytic Divided Wall Column

2011 ◽  
Vol 225-226 ◽  
pp. 496-499 ◽  
Author(s):  
Lan Yi Sun ◽  
Cai Xia Qi ◽  
Jun Li ◽  
Qing Song Li
Keyword(s):  
Control Strategy ◽  
Methyl Acetate ◽  
Control Structure ◽  
Pi Control ◽  
Control Performance ◽  
Control Scheme ◽  
Divided Wall Column ◽  
Control Configuration ◽  
Hydrolysis Of

A control strategy which is based on the Catalytic Divided Wall Column (CDWC) for hydrolysis of methyl acetate (MeAc) is studied and a feasible control structure is obtained. The manipulated variables and controlled variables are selected and paired. Two kinds of disturbances are employed to test this control configuration and the result shows that a simple PI control scheme with three temperature loops can obtain reasonable control performance and maintains the desired purity of two products and stoichiometric balance between reactants.

Fuzzy adaptive Kalman filter for the drive system with an elastic coupling

2013 ◽  
Vol 62 (2) ◽  
pp. 251-265 ◽  
Author(s):  
Piotr J. Serkies ◽  
Krzysztof Szabat
Keyword(s):  
Kalman Filter ◽  
Control Structure ◽  
Experimental Tests ◽  
Drive System ◽  
Adaptive Kalman Filter ◽  
State Matrix ◽  
State Controller ◽  
Kalman Gain ◽  
Robust Adaptive ◽  
Fuzzy Adaptive

Abstract In the paper issues related to the design of a robust adaptive fuzzy estimator for a drive system with a flexible joint is presented. The proposed estimator ensures variable Kalman gain (based on the Mahalanobis distance) as well as the estimation of the system parameters (based on the fuzzy system). The obtained value of the time constant of the load machine is used to change the values in the system state matrix and to retune the parameters of the state controller. The proposed control structure (fuzzy Kalman filter and adaptive state controller) is investigated in simulation and experimental tests.

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