modelTestP_tracking

Test of the Proportional controller -- Tracking mode

Extends from Modelica.Icons.Example (Icon for runnable examples).

Information

Description

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

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

There are two processes:

with a P controller,
and a P 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 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.

Parameters

Type	Name	Default	Description
Sampling time
Real	Ts	0	if Ts>=0 then discrete time controller, otherwise continuous time

Components

Type	Name	Default	Description
Modelica.Blocks.Sources.Step	step
IndustrialControlSystems.Controllers.P	R
IndustrialControlSystems.Controllers.P	R_track
Modelica.Blocks.Sources.BooleanTable	TSsignal
Modelica.Blocks.Sources.TimeTable	TrackRef
LinearSystems.Continuous.TransferFunction	process
LinearSystems.Continuous.TransferFunction	processTrack

Revisions

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