modelSMEE_Generator
Electrical excited synchronous machine operating as generator
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
Electrical excited synchronous machine as generator
An electrically excited synchronous generator is connected to the grid and driven with constant speed. Since speed is slightly smaller than synchronous speed corresponding to mains frequency, rotor angle is very slowly increased. This allows to see several characteristics dependent on rotor angle.
Simulate for 30 seconds and plot (versus rotorAngleM.rotorDisplacementAngle):
speedM|E.tauElectrical: machine torquemechanicalPowerSensorM|E.P: mechanical power
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | m | 3 | Number of stator phases |
| SI.Voltage | VsNominal | 100 | Nominal RMS voltage per phase |
| SI.Frequency | fsNominal | smeeData.fsNominal | Nominal frequency |
| SI.AngularVelocity | w | Modelica.Units.Conversions.from_rpm(1499) | Nominal speed |
| SI.Current | Ie | 19 | Excitation current |
| SI.Current | Ie0 | 10 | Initial excitation current |
| SI.Angle | gamma0 | 0 | Initial rotor displacement angle |
| Integer | p | 2 | Number of pole pairs |
| SI.Resistance | Rs | 0.03 | Warm stator resistance per phase |
| SI.Inductance | Lssigma | 0.1/(2*Modelica.Constants.pi*fsNominal) | Stator stray inductance per phase |
| SI.Inductance | Lmd | 1.5/(2*Modelica.Constants.pi*fsNominal) | Main field inductance in d-axis |
| SI.Inductance | Lmq | 1.5/(2*Modelica.Constants.pi*fsNominal) | Main field inductance in q-axis |
| SI.Inductance | Lrsigmad | 0.05/(2*Modelica.Constants.pi*fsNominal) | Damper stray inductance (equivalent three-phase winding) d-axis |
| SI.Inductance | Lrsigmaq | Lrsigmad | Damper stray inductance (equivalent three-phase winding) q-axis |
| SI.Resistance | Rrd | 0.04 | Warm damper resistance (equivalent three-phase winding) d-axis |
| SI.Resistance | Rrq | Rrd | Warm damper resistance (equivalent three-phase winding) q-axis |
| Modelica.Electrical.Machines.Utilities.SynchronousMachineData | smeeData | Synchronous machine data |