WOLFRAM SYSTEMMODELER

VfController

Voltage-Frequency-Controller

Wolfram Language

In[1]:=
SystemModel["Modelica.Magnetic.QuasiStatic.FundamentalWave.Utilities.VfController"]
Out[1]:=

Information

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

This is a simple voltage-frequency-controller. The amplitude of the voltage is linear dependent (VNominal/fNominal) on the frequency (input signal u), but limited by VNominal (nominal RMS voltage per phase). An m quasi static phasor signal is provided as output signal y, representing complex voltages. The output voltages may serve as inputs for complex voltage sources with phase input. Symmetrical voltages are assumed.

Fig. 1: Voltage vs. frequency of voltage frequency controller

Parameters (5)

m

Value: 3

Type: Integer

Description: Number of phases

orientation

Value: -Modelica.Electrical.MultiPhase.Functions.symmetricOrientation(m)

Type: Angle[m] (rad)

Description: Orientation of phases

VNominal

Value:

Type: Voltage (V)

Description: Nominal RMS voltage per phase

fNominal

Value:

Type: Frequency (Hz)

Description: Nominal frequency

BasePhase

Value: 0

Type: Angle (rad)

Description: Common phase shift

Outputs (1)

amplitude

Type: Voltage (V)

Connectors (2)

y

Type: ComplexOutput[m]

Description: Complex quasi static voltages (RMS)

u

Type: RealInput

Description: Frequency input (Hz)

Used in Examples (1)

IMC_Conveyor

Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines

Induction machine with squirrel cage and inverter driving a conveyor