WOLFRAM SYSTEM MODELER

IMC_Initialize

Test example: Steady-State Initialization of InductionMachineSquirrelCage

Diagram

Wolfram Language

In[1]:=
SystemModel["Modelica.Electrical.Machines.Examples.InductionMachines.IMC_Initialize"]
Out[1]:=

Information

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

The induction machine with squirrel cage is initialized in steady-state at no-load; at time tStart a load torque 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: 50

Type: Frequency (Hz)

Description: Nominal frequency

wSync

Value: 2 * pi * fNominal / aimc.p

Type: AngularVelocity (rad/s)

Description: Synchronous speed

tStart

Value: 0.5

Type: Time (s)

Description: Start time

TLoad

Value: 161.4

Type: Torque (N⋅m)

Description: Nominal load torque

wLoad

Value: 1440.45 * 2 * Modelica.Constants.pi / 60

Type: AngularVelocity (rad/s)

Description: Nominal load speed

JLoad

Value: 0.29

Type: Inertia (kg⋅m²)

Description: Load's moment of inertia

aimcData

Value:

Type: IM_SquirrelCageData

Description: Induction machine data

Components (9)

aimc

Type: IM_SquirrelCage

Description: Induction machine with squirrel cage rotor

currentQuasiRMSSensor

Type: CurrentQuasiRMSSensor

Description: Length of space phasor -> RMS current

sineVoltage

Type: SineVoltage

Description: Polyphase sine voltage source

star

Type: Star

Description: Star-connection

ground

Type: Ground

Description: Ground node

loadInertia

Type: Inertia

Description: 1D-rotational component with inertia

torqueStep

Type: TorqueStep

Description: Constant torque, not dependent on speed

terminalBox

Type: TerminalBox

Description: Terminal box Y/D-connection

aimcData

Type: IM_SquirrelCageData

Description: Induction machine data