WOLFRAM SYSTEMMODELER

# Rectifier

Rectifier example # Wolfram Language

In:= `SystemModel["Modelica.Electrical.QuasiStationary.SinglePhase.Examples.Rectifier"]`
Out:= # 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 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 Default Value: iQS.len Type: Current (A) Description: QS current

# Components (19)

voltageQS resistorQS Type: VoltageSource Type: Resistor Type: CurrentSensor Type: ComplexToPolar Type: Ground Type: IdealACDCConverter Type: Ground Type: CurrentSensor Type: VariableConductor Type: SineVoltage Type: Resistor Type: CurrentSensor Type: Harmonic Type: Ground Type: GraetzRectifier Type: CurrentSensor Type: RootMeanSquare Type: VariableConductor Type: Ramp