WOLFRAM SYSTEMMODELER

AIMC_Inverter

Asynchronous induction machine with squirrel cage and inverter

Diagram

Wolfram Language

In[1]:=
SystemModel["Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.AIMC_Inverter"]
Out[1]:=

Information

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

An ideal frequency inverter is modeled by using a VfController and a three-phase SignalVoltage. Frequency is raised by a ramp, causing the asynchronous induction machine with squirrel cage to start, and accelerating inertias. At time tStep a load step is applied.

Simulate for 1.5 seconds and plot (versus time):

  • currentQuasiRMSSensor.I: stator current RMS
  • aimc.wMechanical: motor's speed
  • aimc.tauElectrical: motor's torque
Default machine parameters are used.

Parameters (8)

VNominal

Value: 100

Type: Voltage (V)

Description: Nominal RMS voltage per phase

fNominal

Value: aimcData.fsNominal

Type: Frequency (Hz)

Description: Nominal frequency

f

Value: fNominal

Type: Frequency (Hz)

Description: Maximum operational frequency

tRamp

Value: 1

Type: Time (s)

Description: Frequency ramp

TLoad

Value: 161.4

Type: Torque (N·m)

Description: Nominal load torque

tStep

Value: 1.2

Type: Time (s)

Description: Time of load torque step

JLoad

Value: 0.29

Type: Inertia (kg·m²)

Description: Load's moment of inertia

aimcData

Value:

Type: AIM_SquirrelCageData

Components (11)

aimc

Type: AIM_SquirrelCage

currentQuasiRMSSensor

Type: CurrentQuasiRMSSensor

ramp

Type: Ramp

vfController

Type: VfController

signalVoltage

Type: SignalVoltage

star

Type: Star

ground

Type: Ground

loadInertia

Type: Inertia

loadTorqueStep

Type: TorqueStep

terminalBox

Type: TerminalBox

aimcData

Type: AIM_SquirrelCageData