WOLFRAM SYSTEMMODELER

Rectifier

Rectifier example

Diagram

Wolfram Language

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SystemModel["Modelica.Electrical.QuasiStationary.SinglePhase.Examples.Rectifier"]
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Information

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

This example demonstrates coupling a quasi stationary circuit with a DC circuit. The QS voltage is rectified (using an ideal AC DC converter), loaded by a variable load conductor. The conversionFactor = DC voltage / AC rms voltage in this case is the root mean square of a rectified sine, i.e., 1. You may compare the quasi stationary results with that of a fully transient model (using a Graetz rectifier), plotting:

  • QS: AC rms current = iQS.len
  • AC: AC instantaneous current = iAC.u
  • AC: AC rms current = iAC.y_rms
  • QS: DC current = iDC1.i
  • AC: DC instantaneous current = iDC2.u
  • AC: DC rms current = iDC2.y

It can be seen that at the DC side the current is represented by its averaged value, at the AC side by its rms value.

Note

The quasi stationary model needs a grounding at the QS side as well as the DC side, whereas the transient model may have only one ground since AC side and DC side are connected via the diodes.

Parameters (2)

VAC

Value: 100

Type: Voltage (V)

Description: AC rms voltage

conversionFactor

Value: 1

Type: Real

Description: Ratio of DC voltage / AC rms voltage

Outputs (2)

Itr

Default Value: iAC.y_rms

Type: Current (A)

Description: Transient current

Iqs

Default Value: iQS.len

Type: Current (A)

Description: QS current

Components (19)

voltageQS

Type: VoltageSource

resistorQS

Type: Resistor

currentSensorQS

Type: CurrentSensor

iQS

Type: ComplexToPolar

groundQS

Type: Ground

rectifierQS

Type: IdealACDCConverter

groundDC1

Type: Ground

iDC1

Type: CurrentSensor

load1

Type: VariableConductor

voltageAC

Type: SineVoltage

resistorAC

Type: Resistor

currentSensorAC

Type: CurrentSensor

iAC

Type: Harmonic

groundAC

Type: Ground

rectifierAC

Type: GraetzRectifier

currentSensorDC2

Type: CurrentSensor

iDC2

Type: RootMeanSquare

load2

Type: VariableConductor

ramp

Type: Ramp