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.

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