WOLFRAM SYSTEMMODELER

TransformerYD

Test example with multiphase components

Diagram

Wolfram Language

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SystemModel["Modelica.Electrical.MultiPhase.Examples.TransformerYD"]
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Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

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.

Parameters (8)

m

Value: 3

Type: Integer

Description: Number of phases

V

Value: 1

Type: Voltage (V)

Description: Amplitude of Star-Voltage

f

Value: 5

Type: Frequency (Hz)

Description: Frequency

Lm

Value: 1

Type: Inductance (H)

Description: Transformer main inductance

LT

Value: 0.003

Type: Inductance (H)

Description: Transformer stray inductance

RT

Value: 0.05

Type: Resistance (Ω)

Description: Transformer resistance

RL

Value: 1

Type: Resistance (Ω)

Description: Load Resistance

nT

Value: 1 / sqrt((1 - Modelica.Math.cos(2 * Modelica.Constants.pi / m)) ^ 2 + Modelica.Math.sin(2 * Modelica.Constants.pi / m) ^ 2)

Type: Real

Description: Transformer ratio

Components (12)

sineVoltage

Type: SineVoltage

Description:

starS

Type: Star

Description:

groundS

Type: Ground

Description:

idealTransformer

Type: IdealTransformer

Description:

starT

Type: Star

Description:

deltaT2

Type: Delta

Description:

groundT

Type: Ground

Description:

transformerR

Type: Resistor

Description:

transformerL

Type: Inductor

Description:

loadR

Type: Resistor

Description:

starL

Type: Star

Description:

groundL

Type: Ground

Description: