IMC_DOLDirect on line (DOL) start of induction machine with squirrel cage |
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Diagram
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 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 currentaimcM|E.wMechanical: machine speedaimcM|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: IM_SquirrelCageData Description: Induction machine data |
Components (17)
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ground |
Type: Ground |
|---|---|---|
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star |
Type: Star |
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sineVoltage |
Type: SineVoltage |
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idealCloser |
Type: IdealClosingSwitch |
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booleanStep |
Type: BooleanStep[m] |
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currentRMSsensorM |
Type: CurrentQuasiRMSSensor |
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currentRMSsensorE |
Type: CurrentQuasiRMSSensor |
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terminalBoxM |
Type: TerminalBox |
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terminalBoxE |
Type: TerminalBox |
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aimcM |
Type: IM_SquirrelCage |
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aimcE |
Type: IM_SquirrelCage |
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loadInertiaM |
Type: Inertia |
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loadInertiaE |
Type: Inertia |
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quadraticLoadTorqueM | |
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quadraticLoadTorqueE | |
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aimcData |
Type: IM_SquirrelCageData Description: Induction machine data |
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currentQuasiRMSSensor |
Type: CurrentQuasiRMSSensor |