.IndustrialControlSystems.Controllers.Examples.TestD_tracking

Test of the Derivative controller -- Tracking mode

Information

Description

In this example have been tested the tracking mode of the derivative controller.
The process to be controlled has the following transfer function

   Y(s)          (1+15s)
   ----  =  ----------------
   U(s)       s(1+10s)(1+2s)

There are two processes:

with a D controller,
and a D controller with tracking mode

The output signal of the process controlled without tracking is the red line, while the green line is the output of the process controlled with the tracking mode. The signal moves away from the SP because of the integrator in the process. The derivative controller, cannot act in order to move the PV closer to the SP.

The CS of the controller becomes equal to the track reference signal TR when the Track Switch signal becomes true.

Discrete time

If the model parameter Ts is >=0 the continuous time controllers are replaced by their discrete time versions.
The effect of various discretisation method can be studied.

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.

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