modelRectifier

B6 diode bridge
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Information

The rectifier example shows a B6 diode bridge fed by a three phase sinusoidal voltage, loaded by a DC current.
DC capacitors start at ideal no-load voltage, thus making easier initial transient.

Simulate until T=0.1 s,
Set communication interval to 1e-5, and
Limit output storage to defined output variables only.

Plot in separate windows:

uDC ... DC-voltage
iAC ... AC-currents 1..3
uAC ... AC-voltages 1..3 (distorted)
Try different load currents iDC = 0..approximately 500 A.

You may watch Losses (of the whole diode bridge) trying different diode parameters.

Release Notes:

  • Mai 7, 2004 by Anton Haumer
    realized

Parameters

TypeNameDefaultDescription
Modelica.SIunits.VoltageVAC400RMS line-to-line
Modelica.SIunits.Frequencyf50line frequency
Modelica.SIunits.InductanceLAC60E-6line inductor
Modelica.SIunits.ResistanceRon1E-3diode forward resistance
Modelica.SIunits.ConductanceGoff1E-3diode backward conductance
Modelica.SIunits.VoltageVknee2diode threshold voltage
Modelica.SIunits.CapacitanceCDC15E-3DC capacitance
Modelica.SIunits.CurrentIDC500load current
Modelica.SIunits.VoltagevC10VAC*sqrt(2)/2
Modelica.SIunits.VoltagevC20VAC*sqrt(2)/2

Components

TypeNameDefaultDescription
Modelica.SIunits.VoltageuDC
Modelica.SIunits.Current[3]iAC
Modelica.SIunits.Voltage[3]uAC
Modelica.SIunits.PowerLosses
Modelica.Blocks.Sources.ConstantConstant1
Basic.GroundGround1
Basic.CapacitorCapacitor1
Basic.CapacitorCapacitor2
Sources.SignalCurrentSignalCurrent1
Sources.SineVoltageSineVoltage1
Sources.SineVoltageSineVoltage2
Sources.SineVoltageSineVoltage3
Basic.InductorInductor1
Basic.InductorInductor2
Basic.InductorInductor3
Ideal.IdealDiodeIdealDiode1
Ideal.IdealDiodeIdealDiode2
Ideal.IdealDiodeIdealDiode3
Ideal.IdealDiodeIdealDiode4
Ideal.IdealDiodeIdealDiode5
Ideal.IdealDiodeIdealDiode6