WOLFRAM SYSTEM MODELER
IMC_ConveyorInduction machine with squirrel cage and inverter driving a conveyor |
SystemModel["Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_Conveyor"]
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 driven by a load cycle of acceleration, constant speed, deceleration and standstill. The mechanical load is a constant torque like a conveyor (with regularization around zero speed).
Simulate for 20 seconds and plot (versus time):
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 |
wNominal |
Value: 2 * pi * fNominal / aimcData.p Type: AngularVelocity (rad/s) Description: Nominal speed |
TLoad |
Value: 161.4 Type: Torque (N⋅m) Description: Nominal load torque |
JLoad |
Value: 0.29 Type: Inertia (kg⋅m²) Description: Load's moment of inertia |
r |
Value: 0.05 Type: Length (m) Description: Transmission radius |
aimcData |
Value: Type: IM_SquirrelCageData Description: Induction machine data |
aimc |
Type: IM_SquirrelCage Description: Induction machine with squirrel cage |
|
---|---|---|
currentQuasiRMSSensor |
Type: CurrentQuasiRMSSensor Description: Length of space phasor -> RMS current |
|
dutyCycle |
Type: CombiTimeTable Description: Table look-up with respect to time and linear/periodic extrapolation methods (data from matrix/file) |
|
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 |
|
terminalBox |
Type: TerminalBox Description: Terminal box Y/D-connection |
|
aimcData |
Type: IM_SquirrelCageData Description: Induction machine data |
|
gain |
Type: Gain Description: Output the product of a gain value with the input signal |
|
idealGearR2T |
Type: IdealGearR2T Description: Gearbox transforming rotational into translational motion |
|
mass |
Type: Mass Description: Sliding mass with inertia |
|
signForce |
Type: SignForce Description: Constant force changing sign with speed |