modelIMC_DOL
Direct on line (DOL) start of induction machine with squirrel cage
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
At start time tStart three-phase voltage is supplied to the induction machine with squirrel cage. The machine starts from standstill, accelerating inertias against load torque quadratic dependent on speed, finally reaching nominal speed.
Simulate for 1.5 seconds and plot (versus time):
currentRMSsensorM|E.I: equivalent RMS stator currentaimcM|E.wMechanical: machine speedaimcM|E.tauElectrical: machine torque
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | m | 3 | Number of stator phases |
| 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 |
| Integer | p | 2 | Number of pole pairs |
| Modelica.Electrical.Machines.Utilities.ParameterRecords.IM_SquirrelCageData | aimcData | Induction machine data |