Comparison between asymptotic and non asymptotic identification techniques of a first-order plus time delay model from step response

2014 ◽  
Author(s):  
Abdelbacet Mhamdi ◽  
Kaouther Ben Taarit ◽  
Moufida Ksouri
Keyword(s):  
Time Delay ◽  
Step Response ◽  
Delay Model ◽  
First Order ◽  
Identification Techniques

On Simple Identification Techniques for First-Order plus Time-Delay Systems

2009 ◽  
Vol 42 (10) ◽  
pp. 605-610 ◽  
Author(s):  
George Acioli Júnior ◽  
João B.M. dos Santos ◽  
Péricles R. Barros
Keyword(s):  
Time Delay ◽  
Delay Systems ◽  
Time Delay Systems ◽  
First Order ◽  
Identification Techniques

Tuning Fractional Order Proportional Integral Controllers for Time Delayed Systems With a Fractional Pole

2011 ◽  
Author(s):  
Hadi Malek ◽  
Ying Luo ◽  
YangQuan Chen
Keyword(s):  
Time Delay ◽  
Fractional Order ◽  
Model Systems ◽  
Delay Model ◽  
Delayed Systems ◽  
First Order ◽  
Tuning Method ◽  
Starting Point ◽  
Reaction Curve ◽  
Pi Controllers

First order plus time delay model is widely used to model systems with S-shaped reaction curve. Its generalized form is the use of a single fractional pole to replace the first order (single-time constant) model, which is believed to better characterize the reaction curve. Using time delayed system model with a fractional pole as the starting point, in this paper, designing fractional order controllers for this class of fractional order systems is investigated. The novelty of this paper is on designing the integer order PID and fractional order PI and [PI] controllers for these class of systems. The simulation and lab experimental results are both included to illustrate the effectiveness of the proposed tuning method. By comparing the results of PID controller, fractional order PI and [PI] controllers, the advantages of the fractional order controller are clearly demonstrated in the case of controlling the single fractional pole plants with constant time delay.

TEACHING CONTROL WITH FIRST ORDER TIME DELAY MODEL AND PI CONTROLLERS

2010 ◽  
Vol 42 (24) ◽  
pp. 31-36 ◽  
Author(s):  
M.L. Ruz ◽  
F. Morilla ◽  
F. Vázquez
Keyword(s):  
Time Delay ◽  
Delay Model ◽  
First Order ◽  
Pi Controllers
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