WOLFRAM SYSTEM MODELER
IMC_InverterTest example: InductionMachineSquirrelCage with inverter |
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Diagram
Wolfram Language
In[1]:=
SystemModel["Modelica.Electrical.Machines.Examples.InductionMachines.IMC_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 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: 50 Type: Frequency (Hz) Description: Nominal frequency |
| f |
Value: 50 Type: Frequency (Hz) Description: Actual 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: IM_SquirrelCageData Description: Induction machine data |
Components (11)
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aimc |
Type: IM_SquirrelCage Description: Induction machine with squirrel cage rotor |
|---|---|---|
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currentQuasiRMSSensor |
Type: CurrentQuasiRMSSensor Description: Length of space phasor -> RMS current |
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ramp |
Type: Ramp Description: Generate ramp signal |
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vfController |
Type: VfController Description: Voltage-Frequency-Controller |
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signalVoltage |
Type: SignalVoltage Description: Polyphase signal voltage source |
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star |
Type: Star Description: Star-connection |
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ground |
Type: Ground Description: Ground node |
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loadInertia |
Type: Inertia Description: 1D-rotational component with inertia |
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loadTorqueStep |
Type: TorqueStep Description: Constant torque, not dependent on speed |
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terminalBox |
Type: TerminalBox Description: Terminal box Y/D-connection |
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aimcData |
Type: IM_SquirrelCageData Description: Induction machine data |