modelIMC_DOL
Induction machine with squirrel cage started directly on line (DOL)
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
This example compares a time transient and a quasi-static model of a polyphase induction machine.
At start time tOn a transient and a quasi-static polyphase voltage source are
connected to an induction machine. The machine starts from standstill, accelerating inertias
against load torque quadratic dependent on speed, finally reaching nominal speed.
Simulate for 1 second and plot (versus time):
currentQuasiRMSSensor|currentQuasiRMSSensorQS.I: (equivalent) RMS stator currentimc|imcQS.wMechanical: machine speedimc|imcQS.tauElectrical: machine torque
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | m | 3 | Number of phases |
| SI.Voltage | VsNominal | 100 | Nominal RMS voltage per phase |
| SI.Frequency | fNominal | imc.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 | 0.5 | Load inertia |
| Integer | p | 2 | Number of pole pairs |
| Modelica.Electrical.Machines.Utilities.ParameterRecords.IM_SquirrelCageData | imcData | Induction machine data |