modelIMC_Transformer
Induction machine with squirrel cage starting with transformer
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
Description
At start time tStart1 a transient and a quasi static three phase voltage
are supplied to a transient and a quasi static asynchronous induction machine with squirrel cage
via a transformer. The machines starts from standstill, accelerating inertias against load torque quadratic dependent on speed.
At start time tStart2 the machines are fed directly from the voltage sources, finally reaching nominal speed.
Plot the following variable(s)
currentRMSsensor.I: quasi RMS stator current of transient machinecurrentRMSSensorQS.I: RMS stator current of quasi static machine
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 | 50 | Nominal frequency |
| Modelica.Units.SI.Time | tStart1 | 0.1 | Start time |
| Modelica.Units.SI.Time | tStart2 | 2.0 | Start time of bypass transformer |
| Modelica.Units.SI.Torque | TLoad | 161.4 | Nominal load torque |
| Modelica.Units.SI.AngularVelocity | wLoad | 1440.45*2*Modelica.Constants.pi/60 | Nominal load speed |
| Modelica.Units.SI.Inertia | JLoad | 0.29 | Load's moment of inertia |
| Modelica.Electrical.Machines.Utilities.TransformerData | transformerData | Transformer parameters | |
| ParameterRecords.IMC | imcData | Induction machine parameters |