modelIMC_DOL_CommonLeakage
Direct on line start of polyphase induction machine with squirrel cage
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
At start time tStart voltages are supplied to the
polyphase induction machines with squirrel cage.
The machines starts from standstill, accelerating inertias against load torque quadratic dependent on speed, finally reaching nominal speed.
Three equivalent machines with different parameter ratioCommonLeakage are compared.
Note that due to the mode of operation, the behaviour of all three machines is identical.
Only when fed by switching power electronics, parameter ratioCommonLeakage is essential.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | m | 5 | Number of stator phases |
| Integer | mBase | numberOfSymmetricBaseSystems(m) | Number of symmetric base systems |
| SI.Voltage | VsNominal | 100 | Nominal RMS voltage per phase |
| SI.Frequency | fNominal | aimcData.fsNominal | Nominal frequency |
| SI.Time | tOn | 0.1 | Start time of machine |
| SI.Torque | T_Load | 161.4 | Nominal load torque |
| SI.AngularVelocity | w_Load | 1440.45*2*Modelica.Constants.pi/60 | Nominal load speed |
| SI.Inertia | J_Load | 0.29 | Load inertia |
| Modelica.Electrical.Machines.Utilities.ParameterRecords.IM_SquirrelCageData | aimcData | Induction machine data |