.IndustrialControlSystems.Applications.ControlProblems.ATProcessControl

Information

Description

In this examples the typical processes (contained in model TypicalTF ) are controlled with PI regulators with automatic tuning. The aim of this example is to show how the automatic tuning algorithm works with varius processes. For each trasfer function taken into account have been compared the parameter values before and after the tuning. Also the algorith parameters are listed too. It is possible to see that they have different values, depending on the considered example (e.g. the slope must be adapted in order to avoid big oscillations, the percentual tolerance have to be adapted if the period of the oscillation changes,...).
The example is made of three phases:

• Set point following with default parameters,
• Automatic tuning,
• Set point following with the tuned parameters.

  Y(s)     1
  ---- = -----
  U(s)     5s  

  Y(s)     1     -1s
  ---- = ----- e
  U(s)     5s  

  Y(s)      1   
  ---- = -------- 
  U(s)    1 + 5s  

  Y(s)      1      -2s
  ---- = -------- e
  U(s)    1 + 5s  

  Y(s)      1 + 5.8s  
  ---- = -------------- 
  U(s)    (1 + 6s)(1+s)  

  Y(s)      1 + 8s  
  ---- = --------------- 
  U(s)    (1 + 5s)(1+2s)  

  Y(s)      1 - 5.5s  
  ---- = --------------- 
  U(s)    (1 + 5s)(1+2s)  

  Y(s)            1  
  ---- = -------------------- 
  U(s)    1 + 1.2 s + 0.025s  

Revisions

Industrial Control Systems (v 1.0.0) : April-May 2012

List of revisions:

• 11 May 2012 (author: Marco Bonvini)

Main Authors:

Marco Bonvini; <bonvini@elet.polimi.it>

Alberto Leva <leva@elet.polimi.it>

Politecnico di Milano

Dipartimento di Elettronica e Informazione

Via Ponzio 34/5

20133 Milano - ITALIA -

Copyright:

Copyright © 2010-2012, Marco Bonvini and Alberto Leva.

The IndustrialControlSystems package is free software; it can be redistributed and/or modified under the terms of the Modelica license.

---

Generated at 2025-10-28T19:21:33Z by OpenModelicaOpenModelica 1.25.5 using GenerateDoc.mos