modelDD

IEEE 4 node test feeder model with unbalanced load and D - D connection (step down)
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Extends from Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BaseClasses.IEEE4 (Base model of the IEEE 4 nodes test feeder).

Information

IEEE 4 nodes validation test case with the following characteristics

  • balanced load,
    • power consumption on phases P1 = 2375 kW, P2 = 1800 kW, and P3 = 1275 kW
    • power factor on phases cosφ1 = 0.85, cosφ2 = 0.9, and cosφ3 = 0.95
  • voltage step-down transformer (VPri=12.47 kV VSec = 4.16kV),
  • D-D transformer

Parameters

TypeNameDefaultDescription
Modelica.Units.SI.VoltageVLL_side1 (from IEEE4)12.47e3Voltage line to line side 1
Modelica.Units.SI.VoltageVLL_side2 (from IEEE4)4.16e3Voltage line to line side 2
Modelica.Units.SI.ApparentPowerVARbase (from IEEE4)6000e3Base VA power of the transformer
Booleanline1_use_Z_y (from IEEE4)trueChoose between Zy or Zd impedance matrix for line 1
Booleanline2_use_Z_y (from IEEE4)trueChoose between Zy or Zd impedance matrix for line 2
Modelica.Units.SI.Voltage[3]V2_ref (from IEEE4){7107, 7140, 7121}Reference RMS voltage node 2 - IEEE results
Modelica.Units.SI.Voltage[3]V3_ref (from IEEE4){2247, 2269, 2256}Reference RMS voltage node 3 - IEEE results
Modelica.Units.SI.Voltage[3]V4_ref (from IEEE4){1918, 2061, 1981}Reference RMS voltage node 4 - IEEE results
Modelica.Units.SI.Angle[3]Theta2_ref (from IEEE4){-0.3, -120.3, 119.6}Reference voltage phase angle node 2 - IEEE results
Modelica.Units.SI.Angle[3]Theta3_ref (from IEEE4){-3.7, -123.5, 116.4}Reference voltage phase angle node 3 - IEEE results
Modelica.Units.SI.Angle[3]Theta4_ref (from IEEE4){-9.1, -128.3, 110.9}Reference voltage phase angle node 4 - IEEE results

Components

TypeNameDefaultDescription
Modelica.Units.SI.Voltage[3]err_V2 (from IEEE4)node2.V - V2_refError on voltage at node 2
Modelica.Units.SI.Voltage[3]err_V3 (from IEEE4)node3.V - V3_refError on voltage at node 3
Modelica.Units.SI.Voltage[3]err_V4 (from IEEE4)node4.V - V4_refError on voltage at node 4
Modelica.Units.SI.Angle[3]err_Theta2 (from IEEE4)node2.theta - Theta2_refError on voltage at node 2
Modelica.Units.SI.Angle[3]err_Theta3 (from IEEE4)node3.theta - Theta3_refError on voltage at node 3
Modelica.Units.SI.Angle[3]err_Theta4 (from IEEE4)node4.theta - Theta4_refError on voltage at node 4
Real[3]err_V2_percent (from IEEE4)100*{err_V2[i]/V2_ref[i] for i in 1:3}Error in RMS voltage at node 2 -- percent
Real[3]err_V3_percent (from IEEE4)100*{err_V3[i]/V3_ref[i] for i in 1:3}Error in RMS voltage at node 3 -- percent
Real[3]err_V4_percent (from IEEE4)100*{err_V4[i]/V4_ref[i] for i in 1:3}Error in RMS voltage at node 4 -- percent
Real[3]err_Theta2_percent (from IEEE4)100*{err_Theta2[i]/Theta2_ref[i] for i in 1:3}Error in voltage phase angle at node 2 -- percent
Real[3]err_Theta3_percent (from IEEE4)100*{err_Theta3[i]/Theta3_ref[i] for i in 1:3}Error in voltage phase angle at node 3 -- percent
Real[3]err_Theta4_percent (from IEEE4)100*{err_Theta4[i]/Theta4_ref[i] for i in 1:3}Error in voltage phase angle at node 4 -- percent
Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.FixedVoltagesource (from IEEE4)Voltage source
Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.TwoPortMatrixRLline1 (from IEEE4)Line at primary side
Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.TwoPortMatrixRLline2 (from IEEE4)Line at secondary side
Buildings.Electrical.AC.ThreePhasesUnbalanced.Loads.InductiveloadRL (from IEEE4)Load
Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.BaseClasses.GeneralizedProbenode1 (from IEEE4)Probe at source
Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.BaseClasses.GeneralizedProbenode2 (from IEEE4)Probe at the primary side of the transformer
Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.BaseClasses.GeneralizedProbenode3 (from IEEE4)Probe at the secondary side of the transformer
Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.BaseClasses.GeneralizedProbenode4 (from IEEE4)Probe at the load
Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.ACACTransformerDDtransformer
Modelica.Blocks.Sources.Constantload3
Modelica.Blocks.Sources.Constantload2
Modelica.Blocks.Sources.Constantload1
Modelica.Blocks.Sources.Constantpf1
Modelica.Blocks.Sources.Constantpf2
Modelica.Blocks.Sources.Constantpf3

Revisions

  • October 9, 2014, by Marco Bonvini:
    Added documentation.
  • June 17, 2014, by Marco Bonvini:
    Moved to Examples IEEE package.
  • June 6, 2014, by Marco Bonvini:
    First implementation.