WOLFRAM SYSTEMMODELER

SMR_Inverter_MultiPhase

Starting of multi phase synchronous reluctance machine with inverter

Diagram

Wolfram Language

In[1]:=
SystemModel["Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SMR_Inverter_MultiPhase"]
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Information

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

Synchronous induction machine with reluctance rotor fed by an ideal inverter

Ideal frequency inverters are modeled by using a VfController and phase SignalVoltages. Frequency is raised by a ramp, causing the reluctance machine to start, and accelerating inertias. At time tStep a load step is applied. Two equivalent machines with different numbers of phases are compared and their equal behavior is demonstrated.

Simulate for 1.5 seconds and plot (versus time):

  • aimcM|M3.tauElectrical: machine torque
  • aimsM|M3.wMechanical: machine speed
  • feedback.y: zero since difference of three phase current phasor and scaled multi phase current phasor are equal

Parameters (8)

VsNominal

Value: 100

Type: Voltage (V)

Description: Nominal RMS voltage per phase

fsNominal

Value: smrData.fsNominal

Type: Frequency (Hz)

Description: Nominal frequency

fKnee

Value: 50

Type: Frequency (Hz)

Description: Knee frequency of V/f curve

tRamp

Value: 1

Type: Time (s)

Description: Frequency ramp

T_Load

Value: 46

Type: Torque (N·m)

Description: Nominal load torque

tStep

Value: 1.2

Type: Time (s)

Description: Time of load torque step

J_Load

Value: 0.29

Type: Inertia (kg·m²)

Description: Load inertia

smrData

Value:

Type: SM_ReluctanceRotorData

Components (23)

terminalBoxM

Type: TerminalBox

terminalBox3

Type: TerminalBox

smrM

Type: SM_ReluctanceRotor

smr3

Type: SM_ReluctanceRotor

rotorAngle3

Type: RotorDisplacementAngle

loadInertiaM

Type: Inertia

loadInertia3

Type: Inertia

torqueStepM

Type: TorqueStep

torqueStep3

Type: TorqueStep

smrData

Type: SM_ReluctanceRotorData

ground3

Type: Ground

star3

Type: Star

signalVoltage3

Type: SignalVoltage

ramp

Type: Ramp

vfController3

Type: VfController

currentRMSsensorM

Type: CurrentQuasiRMSSensor

currentRMSsensor3

Type: CurrentQuasiRMSSensor

signalVoltageM

Type: SignalVoltage

starM

Type: Star

groundM

Type: Ground

vfControllerM

Type: VfController

feedback

Type: Feedback

gain

Type: Gain