Modelica.Electrical.QuasiStationary.Machines.Examples

Test examples

Information

Examples to demonstrate the usage of quasistationary electric components.

Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).

Package Content

Name Description

TransformerTestbench Transformer Testbench

Name	Description
TransformerTestbench	Transformer Testbench

Modelica.Electrical.QuasiStationary.Machines.Examples.TransformerTestbench

Transformer Testbench

Modelica.Electrical.QuasiStationary.Machines.Examples.TransformerTestbench

Information

Transformer testbench:
You may choose different connections as well as vary the load (even not symmetrical).
Please pay attention to proper grounding of the primary and secondary part of the whole circuit.
The primary and secondary starpoint are available as connectors, if the connection is not delta (D or d).
In some cases it may be necessary to ground the transformer's starpoint even though the source's or load's starpoint are grounded; you may use a reasonable high earthing resistance.

Extends from Modelica.Icons.Example (Icon for runnable examples).

Parameters

Type Name Default Description

Resistance RL[3] fill(1/3, 3) Load resistance [Ohm]

Type	Name	Default	Description
Resistance	RL[3]	fill(1/3, 3)	Load resistance [Ohm]

Modelica definition

model TransformerTestbench "Transformer Testbench"
  extends Modelica.Icons.Example;
  parameter Modelica.SIunits.Resistance RL[3]=fill(1/3,3) "Load resistance";
  QuasiStationary.MultiPhase.Sources.VoltageSource source(f=50, V=fill(100/
        sqrt(3), 3));
  QuasiStationary.MultiPhase.Basic.Star starS;
  QuasiStationary.SinglePhase.Basic.Ground groundS;
  QuasiStationary.MultiPhase.Sensors.PowerSensor electricalPowerSensorS;
  QuasiStationary.MultiPhase.Sensors.CurrentSensor currentSensorS;
  ComplexBlocks.ComplexMath.ComplexToPolar polarIS[3];
  QuasiStationary.MultiPhase.Sensors.VoltageSensor voltageSensorS;
  ComplexBlocks.ComplexMath.ComplexToPolar polarVS[3];
  QuasiStationary.MultiPhase.Basic.Delta deltaS;
  QuasiStationary.SinglePhase.Basic.Resistor earth(R_ref=1e6);
  QuasiStationary.SinglePhase.Basic.Ground groundT;
  QuasiStationary.MultiPhase.Sensors.VoltageSensor voltageSensorL;
  ComplexBlocks.ComplexMath.ComplexToPolar polarVL[3];
  QuasiStationary.MultiPhase.Basic.Delta deltaL;
  QuasiStationary.MultiPhase.Sensors.CurrentSensor currentSensorL;
  ComplexBlocks.ComplexMath.ComplexToPolar polarIL[3];
  QuasiStationary.MultiPhase.Sensors.PowerSensor electricalPowerSensorL;
  QuasiStationary.MultiPhase.Basic.Resistor load(R_ref=RL);
  QuasiStationary.MultiPhase.Basic.Star starL;
  QuasiStationary.SinglePhase.Basic.Ground groundL;
  Modelica.Electrical.Machines.Utilities.TransformerData transformerData(
    C1=Modelica.Utilities.Strings.substring(transformer.VectorGroup, 1, 1),
    C2=Modelica.Utilities.Strings.substring(transformer.VectorGroup, 2, 2));
  QuasiStationary.Machines.BasicMachines.Transformers.Yd.Yd01 transformer(
    n=transformerData.n,
    R1=transformerData.R1,
    L1sigma=transformerData.L1sigma,
    R2=transformerData.R2,
    L2sigma=transformerData.L2sigma);
equation 
  connect(starS.pin_n, groundS.pin);
  connect(source.plug_n, starS.plug_p);
  connect(starL.pin_n, groundL.pin);
  connect(load.plug_n, starL.plug_p);
  connect(source.plug_p, electricalPowerSensorS.currentP);
  connect(electricalPowerSensorS.currentP, electricalPowerSensorS.voltageP);
  connect(electricalPowerSensorS.currentN, currentSensorS.plug_p);
  connect(currentSensorS.plug_n, transformer.plug1);
  connect(transformer.plug2, currentSensorL.plug_p);
  connect(currentSensorL.plug_n, electricalPowerSensorL.currentP);
  connect(electricalPowerSensorL.currentP, electricalPowerSensorL.voltageP);
  connect(electricalPowerSensorL.currentN, load.plug_p);
  connect(electricalPowerSensorL.voltageN, starL.plug_p);
  connect(electricalPowerSensorS.voltageN, starS.plug_p);
  connect(earth.pin_n, groundT.pin);
  connect(deltaS.plug_p, voltageSensorS.plug_n);
  connect(deltaS.plug_n, voltageSensorS.plug_p);
  connect(currentSensorS.plug_n, deltaS.plug_n);
  connect(deltaL.plug_p, voltageSensorL.plug_n);
  connect(deltaL.plug_n, voltageSensorL.plug_p);
  connect(currentSensorL.plug_p, deltaL.plug_n);
  connect(polarIS.u, currentSensorS.y);
  connect(polarIL.u, currentSensorL.y);
  connect(voltageSensorS.y, polarVS.u);
  connect(voltageSensorL.y, polarVL.u);
end TransformerTestbench;

Automatically generated Fri Nov 12 16:29:25 2010.