WOLFRAM SYSTEM MODELER
IMC_InverterInduction machine with squirrel cage and inverter |
SystemModel["Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_Inverter"]
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):
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: IM_SquirrelCageData Description: Induction machine data |
aimc |
Type: IM_SquirrelCage Description: Induction machine with squirrel cage |
|
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currentQuasiRMSSensor |
Type: CurrentQuasiRMSSensor Description: Length of space phasor -> RMS current |
|
ramp |
Type: Ramp Description: Generate ramp signal |
|
vfController |
Type: VfController Description: Voltage-Frequency-Controller |
|
signalVoltage |
Type: SignalVoltage Description: Polyphase signal voltage source |
|
star |
Type: Star Description: Star-connection |
|
ground |
Type: Ground Description: Ground node |
|
loadInertia |
Type: Inertia Description: 1D-rotational component with inertia |
|
loadTorqueStep |
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 |