.PowerSystems.Utilities.Math.relaxation

Information

The function has two components, y[1] decreasing and y[2] increasing.

For

  0 ≤  t <  t_relax
  y[1] decreases exponentially from 1 to 0
  y[2] increases exponentially from 0 to 1

  t <  0 and t &ge  t_relax
  y[1] = 0
  y[2] = 1

Interface

function relaxation
  extends Modelica.Icons.Function;
  input Real t "relative time";
  input Real t_char "characteristic time";
  input Real beta(min = 2) "power of exponent";
  output Real[2] y "relaxation function {decreasing, increasing}";
end relaxation;