.TransiEnt.Basics.Blocks.LimPID

Information

1. Purpose of model

This model is a LimPID controller which was copied from ClaRa.Components.Utilities.Blocks.LimPID and the following was changed:

• The reset ability can be turned off. In some situations, the reset of the controller at activation prohibits the controller from reacting correctly: If the control error decreases directly after activation, the controller will not do anything even if there is still a control error > 0.
• The amount of states was reduced by exchanging the first order blocks by TransiEnt.Basics.Blocks.FirstOrderTransiEnt and exchanging the equations for the reset values. This improves the speed.

2. Level of detail, physical effects considered, and physical insight

(Description)

3. Limits of validity

(Description)

4. Interfaces

u_s: input for set value

u_m: input for measured value

activateInput: input to turn on the controller

y: output

5. Nomenclature

(no elements)

6. Governing Equations

(no equations)

7. Remarks for Usage

(none)

8. Validation

(no validation or testing necessary)

9. References

(none)

10. Version History

Model created by Carsten Bode (c.bode@tuhh.de), Nov 2018

Revisions

• 15.04.09 First revision, Boris Michaelsen, XRG Simulation GmbH
• 25.11.09 Update to independently set the gain and time constants of the PID, added a new parameter "sign" for case dependent control error evaluation, Friedrich Gottelt, XRG Simulation GmbH