modelTwoPortRLC

Model of an RLC element with two electrical ports

Extends from IDEAS.Electrical.Transmission.BaseClasses.PartialTwoPortRLC.

Information

This model represents a series of two resistive-inductive impedances and a capacitance that connects two AC single phase interfaces. This model can be used to represent a cable in a AC grid.

The model represents the lumped resistances and capacity, as a T-model, as shown in the figure below.

image

As can be seen in the figure, the resistance R and the inductance L are split in two halves and the capacitance is located in the center. The capacitance in the center is optional. If it is not present, set the parameter C=0. The model is either dynamic or static depending on the presence of the capacitive effect.

Parameters

TypeNameDefaultDescription
Modelica.Units.SI.Voltage[2]Vc_start{V_nominal, 0}Initial voltage phasor of the capacitance located in the middle of the line
Modeling assumption
IDEAS.Electrical.Types.LoadmodeIDEAS.Electrical.Types.Load.FixedZ_steady_stateType of model (e.g., steady state, dynamic, prescribed power consumption, etc.)

Revisions

  • November 8, 2016, by Michael Wetter:
    Added replaceable to terminal redeclaration as they are redeclared by IDEAS.Electrical.AC.ThreePhasesBalanced.Lines.TwoPortRLC.
  • May 26, 2016, by Michael Wetter:
    Moved function call to PhaseSystem.thetaRef out of derivative operator as this is not yet supported by JModelica.
  • March 9, 2015, by Marco Bonvini:
    Added parameter for start value of the voltage.
  • August 5, 2014, by Marco Bonvini:
    Revised model and documentation.