modelIMC_Steinmetz
Induction machine with squirrel cage and Steinmetz-connection
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
Description
At start time tStart single phase voltage is supplied to an induction machine with squirrel cage.
The machine starts from standstill, accelerating inertias against load torque quadratic dependent on speed,
finally reaching nominal speed.
Plot the following variable(s)
imc.wMechanicalandwSwitch: mechanical speed and speed limit of disconnecting the starting capacitorrmsI[1].y,rmsI[2].y,rmsI[2].y: RMS currents of stator phases 1, 2, 3idealCloser.i: current of main switchimc.tauElectrical: electromagnetic tourqueimc.stator.electroMagneticConverter.abs_Phi: magnitude of stator flux
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | m | 3 | Number of phases |
| Modelica.Units.SI.Voltage | VsNominal | 100 | Nominal RMS voltage per phase |
| Modelica.Units.SI.Current | IsNominal | 100 | Nominal RMS current per phase |
| Modelica.Units.SI.Frequency | fsNominal | imcData.fsNominal | Nominal frequency |
| Modelica.Units.SI.Time | tStart1 | 0.1 | Start time |
| Modelica.Units.SI.Capacitance | Cr | 0.0035 | Motor's running capacitor |
| Modelica.Units.SI.Capacitance | Cs | 5*Cr | Motor's (additional) starting capacitor |
| Modelica.Units.SI.AngularVelocity | wSwitch | 1350*2*Modelica.Constants.pi/60 | Speed for switching off the starting capacitor |
| Modelica.Units.SI.Torque | tauLoad | 2/3*161.4 | Nominal load torque |
| Modelica.Units.SI.AngularVelocity | wLoad | 1462.5*2*Modelica.Constants.pi/60 | Nominal load speed |
| Modelica.Units.SI.Inertia | JLoad | 0.29 | Load's moment of inertia |
| ParameterRecords.IMC | imcData | Induction machine parameters |