WOLFRAM SYSTEMMODELER

AIMC_DOL

Direct on line (DOL) start of asynchronous induction machine with squirrel cage

Diagram

Wolfram Language

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

Information

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

At start time tStart three phase voltage is supplied to the asynchronous induction machine with squirrel cage. The machine starts from standstill, accelerating inertias against load torque quadratic dependent on speed, finally reaching nominal speed.

Simulate for 1.5 seconds and plot (versus time):

  • currentRMSsensorM|E.I: equivalent RMS stator current
  • aimcM|E.wMechanical: machine speed
  • aimcM|E.tauElectrical: machine torque

Parameters (8)

VsNominal

Value: 100

Type: Voltage (V)

Description: Nominal RMS voltage per phase

fNominal

Value: aimcData.fsNominal

Type: Frequency (Hz)

Description: Nominal frequency

tOn

Value: 0.1

Type: Time (s)

Description: Start time of machine

T_Load

Value: 161.4

Type: Torque (N·m)

Description: Nominal load torque

w_Load

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

Type: AngularVelocity (rad/s)

Description: Nominal load speed

J_Load

Value: 0.29

Type: Inertia (kg·m²)

Description: Load inertia

p

Value: 2

Type: Integer

Description: Number of pole pairs

aimcData

Value:

Type: AIM_SquirrelCageData

Components (17)

ground

Type: Ground

star

Type: Star

sineVoltage

Type: SineVoltage

idealCloser

Type: IdealClosingSwitch

booleanStep

Type: BooleanStep[m]

currentRMSsensorM

Type: CurrentQuasiRMSSensor

currentRMSsensorE

Type: CurrentQuasiRMSSensor

terminalBoxM

Type: TerminalBox

terminalBoxE

Type: TerminalBox

aimcM

Type: AIM_SquirrelCage

aimcE

Type: AIM_SquirrelCage

loadInertiaM

Type: Inertia

loadInertiaE

Type: Inertia

quadraticLoadTorqueM

Type: QuadraticSpeedDependentTorque

quadraticLoadTorqueE

Type: QuadraticSpeedDependentTorque

aimcData

Type: AIM_SquirrelCageData

currentQuasiRMSSensor

Type: CurrentQuasiRMSSensor