Please use this identifier to cite or link to this item: http://hdl.handle.net/11189/6473
Title: Observer design for a bilinear model of a continuous countercurrent ion exchange process
Authors: Dube, NM 
Raynitchka, Tzoneva 
Keywords: Linear systems;Nonlinear systems;State estimation;Observer design;Bilinear mode;Ion exchange;Pole placemenT
Issue Date: 2016
Publisher: South African institute of electrical engineers
Journal: South African institute of electrical engineers 
Abstract: The paper describes a method and proposes an algorithm for a bilinear observer design as part of a state estimation solution for a Continuous Countercurrent Ion Exchange (CCIX) process used for desalination of water. The aim of the design is to determine immeasurable process state variables using real CCIX measurement data obtained from a different study. The solution requires determination of the observer gain matrix and it is formulated on the basis of the pole placement method. The contribution of the paper is in the developed bilinear dynamic models of the process and the observer and in the extending of the pole placement method for the special matrices of the bilinear observer. An analytical procedure is developed and implemented for calculation of the characteristic equation of the observer as part of calculation of the observer gain matrix. Matlab and SIMULINK software programs for determining the estimated states are developed. Investigation of the performance of the bilinear observer and the closed loop system under various constant values of the control input and different state initial conditions is performed. The results are presented and discussed.
URI: http://hdl.handle.net/11189/6473
Appears in Collections:Eng - Journal articles (DHET subsidised)

Files in This Item:
File Description SizeFormat 
OBSERVER DESIGN FOR A BILINEAR MODEL OF A CONTINUOUS COUNTERCURRENT ION EXCHANGE PROCESS.pdfMain article653.08 kBAdobe PDFView/Open
Show full item record

Page view(s)

53
checked on Feb 9, 2021

Download(s)

11
checked on Feb 9, 2021

Google ScholarTM

Check


This item is licensed under a Creative Commons License Creative Commons