Buildings.Fluid.Utilities.Examples

Information

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

Package Content

Name	Description
ExtendedPolynomialDerivativeCheck

Buildings.Fluid.Utilities.Examples.ExtendedPolynomialDerivativeCheck

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.

Parameters

Type	Name	Default	Description
Real	c[:]	{0.1162,1.5404,-1.4825,0.766...	Polynomial coefficients
Real	xMin	1	Minimum x value for polynomial
Real	xMax	2	Maximum x value for polynomial

Modelica definition

model ExtendedPolynomialDerivativeCheck
  extends Modelica.Icons.Example;

  parameter Real[:] c={0.1162,1.5404,-1.4825,0.7664,-0.1971} 
    "Polynomial coefficients";
  parameter Real xMin=1 "Minimum x value for polynomial";
  parameter Real xMax=2 "Maximum x value for polynomial";

  Real x;
  Real y;
initial equation 
   y=x;
equation 
  x=Buildings.Fluid.Utilities.extendedPolynomial(
      x=time, c=c, xMin=xMin, xMax=xMax);
  der(y)=der(x);
  assert(abs(x-y) < 1E-2, "Model has an error");

end ExtendedPolynomialDerivativeCheck;