Title :
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
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;
Conference_Titel :
Control Applications (CCA), 2012 IEEE International Conference on
Conference_Location :
Dubrovnik
Print_ISBN :
978-1-4673-4503-3
Electronic_ISBN :
1085-1992
DOI :
10.1109/CCA.2012.6402376
