WOLFRAM SYSTEMMODELER

SMPM_Inverter_MultiPhase

Starting of multi phase permanent magnet synchronous machine with inverter

Diagram

Wolfram Language

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

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

Permanent magnet synchronous induction machine fed by an ideal inverter

An ideal frequency inverter is modeled by using VfControllers and SignalVoltagess. Frequency is raised by a ramp, causing the permanent magnet synchronous induction machines to start, and accelerate the inertias. Two equivalent machines with different numbers of phases are compared and their equal behavior is demonstrated.

At time tStep a load step is applied. 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: smpmData.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: 181.4

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

smpmData

Value:

Type: SM_PermanentMagnetData

Components (23)

ground3

Type: Ground

star3

Type: Star

signalVoltage3

Type: SignalVoltage

ramp

Type: Ramp

vfController3

Type: VfController

currentRMSsensorM

Type: CurrentQuasiRMSSensor

currentRMSsensor3

Type: CurrentQuasiRMSSensor

terminalBoxM

Type: TerminalBox

terminalBox3

Type: TerminalBox

smpmM

Type: SM_PermanentMagnet

smpm3

Type: SM_PermanentMagnet

rotorAngle3

Type: RotorDisplacementAngle

loadInertiaM

Type: Inertia

loadInertia3

Type: Inertia

torqueStepM

Type: TorqueStep

torqueStep3

Type: TorqueStep

smpmData

Type: SM_PermanentMagnetData

signalVoltageM

Type: SignalVoltage

starM

Type: Star

groundM

Type: Ground

vfController

Type: VfController

feedback

Type: Feedback

gain

Type: Gain