modelPolyphaseConverter

Ideal polyphase DC/AC converter
Diagram of PolyphaseConverter

Extends from Modelica.Electrical.PowerConverters.Interfaces.DCAC.DCtwoPin (Positive and negative DC pins), PhotoVoltaics.Icons.Converter.

Information

This is an ideal DC/AC converter.

The polyphase converter is characterized by:

  • Losses are not considered
  • The AC output current is determined based on power balance, calculating with instantaneous values: vDC*iDC + v1*i1 + v2*i2 + v3*i3 = 0
  • The DC input voltage vDCRef is applied to the DC side without limitations
  • The phase angle input phi influences the AC reactive power as shown in the figure below, where underlined voltages and currents represent complex voltage and current phasors
  • A negative angle phi may supply a capacitive load (see figure below)
  • A positive angle phi may supply an inductive load

Parameters

TypeNameDefaultDescription
Modelica.Units.SI.Frequencyf50Frequency
Modelica.Units.SI.VoltageVRef400Reference line to line voltage
Modelica.Units.SI.TimeTi1E-6Internal integration time constant

Connectors

TypeNameDefaultDescription
Modelica.Electrical.Analog.Interfaces.PositivePindc_p (from DCtwoPin)Positive DC input
Modelica.Electrical.Analog.Interfaces.NegativePindc_n (from DCtwoPin)Negative DC input
Modelica.Electrical.Polyphase.Interfaces.PositivePlugacAC output
Modelica.Blocks.Interfaces.RealInputvDCRefDC voltage
Modelica.Blocks.Interfaces.RealInputphiPhase angle of current with respect to voltage

Components

TypeNameDefaultDescription
SI.VoltagevDC (from DCtwoPin)dc_p.v - dc_n.vDC voltage
SI.CurrentiDC (from DCtwoPin)dc_p.iDC current
SI.PowerpowerDC (from DCtwoPin)vDC*iDCDC power
Modelica.Electrical.Analog.Sources.SignalVoltagesignalVoltage
Modelica.Electrical.Analog.Sensors.CurrentSensorcurrentSensor
Modelica.Blocks.Math.Productproduct
Modelica.Blocks.Math.Feedbackfeedback
Modelica.Electrical.Machines.SpacePhasors.Blocks.FromPolarfromPolar
Modelica.Blocks.Continuous.Integratorintegrator
Modelica.Blocks.Math.Gaingain
Modelica.Electrical.Machines.SpacePhasors.Blocks.FromSpacePhasorfromSpacePhasor
Modelica.Blocks.Sources.ConstantzeroConst
Modelica.Electrical.Polyphase.Sources.SignalCurrentsignalCurrent
Modelica.Electrical.Polyphase.Basic.Starstar
Modelica.Electrical.Analog.Basic.Groundground
Modelica.Blocks.Sources.ConstantconstOmega
Modelica.Blocks.Math.RectangularToPolarrectangularToPolar
Modelica.Electrical.Polyphase.Sensors.VoltageSensorvoltageSensorAC
Modelica.Blocks.Math.Product[3]productPower
Modelica.Blocks.Math.Addadd
Modelica.Blocks.Continuous.IntegratorintegratorOmega
Modelica.Blocks.Continuous.FirstOrder[3]firstOrder
Modelica.Electrical.Machines.SpacePhasors.Blocks.RotatorrotatorOut
Modelica.Blocks.Math.Gainneg
Modelica.Electrical.Machines.SpacePhasors.Blocks.ToSpacePhasortoSpacePhasor
Modelica.Electrical.Machines.SpacePhasors.Blocks.RotatorrotatorIn
Modelica.Blocks.Math.Sumsum3