A set of observers design to a quadruple tank process

Author

Saïd, Salim Hadj ; M´sahli, F.

Author_Institution

Tunis Eng. Sch., Tunis

fYear

2008

fDate

3-5 Sept. 2008

Firstpage

954

Lastpage

959

Abstract

In this paper, quadruple tank process is exploited to study different type of nonlinear observer. Indeed, from the physical model of the process, and with liquid levels measurement in the bottom of two tanks, we search to reconstruct liquid levels of the two upper ones. Three approaches are analyzed namely extended Kalman filter (EKF), high gain observer (HGO) and high gain-extended Kalman filter (HG-EKF). The behavior of estimated state, in the presence of disturbance, are provided to appropriate the feature of every observer.

Keywords

Kalman filters; control system synthesis; level control; level measurement; nonlinear control systems; nonlinear filters; state estimation; tanks (containers); extended Kalman filter; high gain observer; high gain-extended Kalman filter; liquid level measurement; liquid level reconstruction; nonlinear observer design; quadruple tank process; state estimation; Control systems; Convergence; Noise robustness; Nonlinear control systems; Nonlinear equations; Nonlinear systems; Observers; Riccati equations; State estimation; USA Councils;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Applications, 2008. CCA 2008. IEEE International Conference on

Conference_Location

San Antonio, TX

Print_ISBN

978-1-4244-2222-7

Electronic_ISBN

978-1-4244-2223-4

Type

conf

DOI

10.1109/CCA.2008.4629593

Filename

4629593