Package Modelica.Electrical.MultiPhase.ExamplesMultiphase test examples
Package Modelica.Electrical.MultiPhase.Examples
This package contains test examples of analog electrical multiphase circuits.
Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).
| Name | Description |
|---|---|
Rectifier | Test example with multiphase components |
TestSensors | |
TransformerYD | Test example with multiphase components |
TransformerYY | Test example with multiphase components |
Model Modelica.Electrical.MultiPhase.Examples.TransformerYY
Test example with multiphase components:
Star-connected voltage source feeds via a Y-Y-transformer with internal impedance (RT, LT) a load resistor RT.
Using f=5 Hz LT=3mH defines nominal voltage drop of approximately 10 %.
Simulate for 1 second (2 periods) and compare voltages and currents of source, transformer and load.
Extends from Modelica.Icons.Example (Icon for runnable examples).
| Type | Name | Default | Description |
|---|---|---|---|
Integer | m | 3 | Number of phases |
Voltage | V | 1 | Amplitude of Star-Voltage |
Frequency | f | 5 | Frequency |
Inductance | Lm | 1 | Transformer main inductance |
Inductance | LT | 0.003 | Transformer stray inductance |
Resistance | RT | 0.05 | Transformer resistance |
Resistance | RL | 1 | Load Resistance |
Real | nT | 1 | Transformer ratio |
Model Modelica.Electrical.MultiPhase.Examples.TransformerYD
Test example with multiphase components:
Star-connected voltage source feeds via a Y-D-transformer with internal impedance (RT, LT) a load resistor RT.
Using f=5 Hz LT=3mH defines nominal voltage drop of approximately 10 %.
Simulate for 1 second (2 periods) and compare voltages and currents of source, transformer and load.
Extends from Modelica.Icons.Example (Icon for runnable examples).
| Type | Name | Default | Description |
|---|---|---|---|
Integer | m | 3 | Number of phases |
Voltage | V | 1 | Amplitude of Star-Voltage |
Frequency | f | 5 | Frequency |
Inductance | Lm | 1 | Transformer main inductance |
Inductance | LT | 0.003 | Transformer stray inductance |
Resistance | RT | 0.05 | Transformer resistance |
Resistance | RL | 1 | Load Resistance |
Real | nT | sqrt((1 - Modelica.Math.cos(2 * Modelica.Constants.pi / m)) ^ 2 + Modelica.Math.sin(2 * Modelica.Constants.pi / m) ^ 2) ^ (-1) | Transformer ratio |
Model Modelica.Electrical.MultiPhase.Examples.Rectifier
Test example with multiphase components:
Star-connected voltage source feeds via a line reactor a diode bridge rectifier with a DC burden.
Using f=50 Hz, simulate for 0.1 second and compare voltages and currents of source and DC burden, neglecting initial transient.
We may also compare: Active power measured by powerSensor, powerSensorSpacePhasor and aronSensor,
as well as reactive power measured by powerSensorSpacePhasor and reactivePowerSensor.
Extends from Modelica.Icons.Example (Icon for runnable examples).
| Type | Name | Default | Description |
|---|---|---|---|
final Integer | m | 3 | Number of phases |
Voltage | V | 100 | RMS of Star-Voltage |
Frequency | f | 50 | Frequency |
Inductance | L | 1e-4 | Line Inductance |
Resistance | RL | 2 | Load Resistance |
Capacitance | C | 0.005 | Total DC-Capacitance |
Resistance | RE | 1000000 | Earthing Resistance |
Resistance | Ron | 1e-5 | Closed diode resistance |
Conductance | Goff | 1e-5 | Opened diode conductance |
Voltage | Vknee | 0 | Threshold diode voltage |
final Voltage | VDC | factorY2DC(m) * V | Estimated average DC voltage |
final Current | IDC | VDC / RL | Estimated average DC current |
Model Modelica.Electrical.MultiPhase.Examples.TestSensors
Test multiphase quasiRMS and power sensors: A sinusoidal source feeds a load consisting of resistor and inductor.
Extends from Modelica.Icons.Example (Icon for runnable examples).
| Type | Name | Default | Description |
|---|---|---|---|
Voltage | VRMS | 100 | Nominal RMS voltage per phase |
Frequency | f | 50 | Frequency |
Resistance | R | sqrt(2) ^ (-1) | Load resistance |
Inductance | L | sqrt(2) ^ (-1) / (2 * pi * f) | Load inductance |
final Impedance | Z | sqrt(R ^ 2 + (2 * pi * f * L) ^ 2) | Load impedance |
final Current | IRMS | VRMS / Z | Steady state RMS current |
final ActivePower | P | 3 * R * IRMS ^ 2 | Total active power |
final ReactivePower | Q | 3 * (2 * pi * f * L) * IRMS ^ 2 | Total reactive power |
final ApparentPower | S | 3 * Z * IRMS ^ 2 | Total apparent power |