.PowerSystems.Utilities.Precalculation.polyTime

Information

This function is related to Math.polyRoots, but modified for polynomes of the form

  product(1 + p*T[k]), k in 1:n

It determines first the root vector

  r[k] = -1/T[k], k in 1:n
 and herefrom T. The time constants are sorted in descending order.
A boolean variable Tisreal indicates whether all time constants are real or not.
See also polyCoef


Interface
function polyTime
  extends Modelica.Icons.Function;
  input Real[:] a "coefficients of polynome";
  output SI.Angle[size(a, 1)] T "time constant";
  output Boolean Tisreal "true if all time constants real";
  import Modelica.Constants.eps;
end polyTime;
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