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WOLFRAM SYSTEM MODELER

VfController

Voltage-Frequency-Controller

Wolfram Language

In[1]:=

SystemModel["Modelica.Electrical.Machines.Utilities.VfController"]

Out[1]:=

Information

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

Simple Voltage-Frequency-Controller.
Amplitude of voltage is linear dependent (VNominal/fNominal) on frequency (input signal "u"), but limited by VNominal (nominal RMS voltage per phase).
m sine-waves with amplitudes as described above are provided as output signal "y".
By setting parameter EconomyMode=true, Voltage rises quadratically with frequency which means flux,torque and loss reduction for fan and pump drives.
The sine-waves are intended to feed a m-phase SignalVoltage.
Phase shifts between sine-waves may be chosen by the user; default values are (k-1)/m*pi for k in 1:m.

Parameters (7)

nout	Value: m Type: Integer Description: Number of outputs
m	Value: 3 Type: Integer Description: Number of phases
orientation	Value: -Modelica.Electrical.Polyphase.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
EconomyMode	Value: false Type: Boolean Description: Economy mode: voltage quadratic dependent on frequency

Outputs (2)

x	Type: Angle (rad) Description: Integrator state
amplitude	Type: Voltage (V)

Type: Angle (rad)

Description: Integrator state

amplitude

Type: Voltage (V)

Connectors (2)

	u	Type: RealInput Description: Connector of Real input signal
	y	Type: RealOutput[nout] Description: Connector of Real output signals

Type: RealInput

Description: Connector of Real input signal

Type: RealOutput[nout]

Description: Connector of Real output signals

Used in Examples (12)

	IMC_Inverter Modelica.Electrical.Machines.Examples.InductionMachines Test example: InductionMachineSquirrelCage with inverter
	IMC_Conveyor Modelica.Electrical.Machines.Examples.InductionMachines Test example: InductionMachineSquirrelCage with inverter driving a conveyor
	IMC_InverterDrive Modelica.Electrical.Machines.Examples.InductionMachines Test example: InductionMachineSquirrelCage inverter drive
	SMR_Inverter Modelica.Electrical.Machines.Examples.SynchronousMachines Test example: SynchronousMachineReluctanceRotor with inverter
	SMPM_Inverter Modelica.Electrical.Machines.Examples.SynchronousMachines Test example: PermanentMagnetSynchronousMachine with inverter
	IMC_Inverter Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.InductionMachines Induction machine with squirrel cage and inverter
	IMC_Conveyor Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.InductionMachines Induction machine with squirrel cage and inverter driving a conveyor
	SMPM_Inverter_Polyphase Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SynchronousMachines.ComparisonPolyphase Starting of polyphase permanent magnet synchronous machine with inverter
	SMR_Inverter_Polyphase Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SynchronousMachines.ComparisonPolyphase Starting of polyphase synchronous reluctance machine with inverter
	SMPM_Inverter Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SynchronousMachines Starting of permanent magnet synchronous machine with inverter
	SMR_Inverter Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SynchronousMachines Starting of synchronous reluctance machine with inverter
	IMC_Conveyor Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines Induction machine with squirrel cage and inverter driving a conveyor