Closed-loop frequency-based identification method for Wiener type plants with a transport delay using a relay feedback

Author

Hanjalic, Selma ; Juric, Zeljko

Author_Institution

Fac. of Electr. Eng., Univ. of Sarajevo, Sarajevo, Bosnia-Herzegovina

fYear

2012

fDate

3-5 Oct. 2012

Firstpage

991

Lastpage

995

Abstract

This paper proposes a closed-loop frequency-based method for parametric identification of Wiener type plants with a transport delay in the linear part using a relay feedback. The method is a generalization of Ziegler Nichols´ (ZN) experiment, with relay added in the control loop. It provides a simultaneous estimation of the linear plant dynamic, value of the time delay and approximate model of the input-output characteristic of the nonlinear part.

Keywords

approximation theory; closed loop systems; delays; feedback; linear systems; nonlinear control systems; parameter estimation; relay control; Wiener-type plants; ZN experiment generalization; Ziegler Nichol experiment generalization; approximate model; closed loop frequency-based identification method; input-output characteristics; linear plant dynamic; parametric identification; relay feedback; time delay; transport delay; Delay; Equations; Hysteresis; Mathematical model; Oscillators; Relays; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Applications (CCA), 2012 IEEE International Conference on

Conference_Location

Dubrovnik

ISSN

1085-1992

Print_ISBN

978-1-4673-4503-3

Electronic_ISBN

1085-1992

Type

conf

DOI

10.1109/CCA.2012.6402376

Filename

6402376