Buildings.Fluid.Actuators.BaseClasses.Examples

Information

This package contains examples for the use of models that can be found in Buildings.Fluid.Actuators.BaseClasses.

Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).

Package Content

Name	Description
EqualPercentageDerivativeCheck

Buildings.Fluid.Actuators.BaseClasses.Examples.EqualPercentageDerivativeCheck

Information

This example checks whether the function derivative is implemented correctly. If the derivative implementation is not correct, the model will stop with an assert statement.

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

Parameters

Type	Name	Default	Description
Real	R	50	Rangeability
Real	delta	0.01	Value where transition occurs
Real	l	0.001	Leakage

Modelica definition

model EqualPercentageDerivativeCheck
  extends Modelica.Icons.Example;

 parameter Real R = 50 "Rangeability";
 parameter Real delta = 0.01 "Value where transition occurs";
 parameter Real l = 0.001 "Leakage";
  Real x;
  Real y;
initial equation 
   y=x;
equation 
  x=Buildings.Fluid.Actuators.BaseClasses.equalPercentage(time, R, l, delta);
  der(y)=der(x);
  assert(abs(x-y) < 1E-2, "Model has an error");

end EqualPercentageDerivativeCheck;