.Modelica_LinearSystems2.Controllers.SecondOrder

Information

This blocks defines the transfer function between the input u and the output y as second order system:

                    k
y = --------------------------------- * u
     ( s / w )^2 + 2*D*( s / w ) + 1

The block can be continuous or discrete (with continuous parameterization).

If you would like to be able to change easily between different transfer functions (FirstOrder, SecondOrder, ... ) by changing parameters, use the general model class TransferFunction instead and model a second order SISO system with parameters
n = {k}, d = {1/w^2, 2*D/w, 1}.

Example

parameter: k =  0.3,  w = 0.5,  D = 0.4

results in

            0.3
y = ------------------- * u
    4.0 s^2 + 1.6 s + 1