WOLFRAM SYSTEM MODELER
SMEE_GeneratorElectrical excited synchronous machine operating as generator |
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Diagram
Wolfram Language
In[1]:=
SystemModel["Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SynchronousMachines.SMEE_Generator"]
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Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
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 (16)
| VsNominal |
Value: 100 Type: Voltage (V) Description: Nominal RMS voltage per phase |
|---|---|
| fsNominal |
Value: smeeData.fsNominal Type: Frequency (Hz) Description: Nominal frequency |
| w |
Value: Modelica.Units.Conversions.from_rpm(1499) Type: AngularVelocity (rad/s) Description: Nominal speed |
| Ie |
Value: 19 Type: Current (A) Description: Excitation current |
| Ie0 |
Value: 10 Type: Current (A) Description: Initial excitation current |
| gamma0 |
Value: 0 Type: Angle (rad) Description: Initial rotor displacement angle |
| p |
Value: 2 Type: Integer Description: Number of pole pairs |
| Rs |
Value: 0.03 Type: Resistance (Ω) Description: Warm stator resistance per phase |
| Lssigma |
Value: 0.1 / (2 * Modelica.Constants.pi * fsNominal) Type: Inductance (H) Description: Stator stray inductance per phase |
| Lmd |
Value: 1.5 / (2 * Modelica.Constants.pi * fsNominal) Type: Inductance (H) Description: Main field inductance in d-axis |
| Lmq |
Value: 1.5 / (2 * Modelica.Constants.pi * fsNominal) Type: Inductance (H) Description: Main field inductance in q-axis |
| Lrsigmad |
Value: 0.05 / (2 * Modelica.Constants.pi * fsNominal) Type: Inductance (H) Description: Damper stray inductance (equivalent three-phase winding) d-axis |
| Lrsigmaq |
Value: Lrsigmad Type: Inductance (H) Description: Damper stray inductance (equivalent three-phase winding) q-axis |
| Rrd |
Value: 0.04 Type: Resistance (Ω) Description: Warm damper resistance (equivalent three-phase winding) d-axis |
| Rrq |
Value: Rrd Type: Resistance (Ω) Description: Warm damper resistance (equivalent three-phase winding) q-axis |
| smeeData |
Value: Type: SynchronousMachineData Description: Synchronous machine data |
Components (20)
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star |
Type: Star Description: Star-connection |
|---|---|---|
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ground |
Type: Ground Description: Ground node |
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sineVoltage |
Type: SineVoltage Description: Polyphase sine voltage source |
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electricalPowerSensorM |
Type: ElectricalPowerSensor Description: Instantaneous power from space phasors |
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electricalPowerSensorE |
Type: ElectricalPowerSensor Description: Instantaneous power from space phasors |
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terminalBoxM |
Type: TerminalBox Description: Terminal box Y/D-connection |
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terminalBoxE |
Type: TerminalBox Description: Terminal box Y/D-connection |
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smeeM |
Type: SM_ElectricalExcited Description: Electrical excited synchronous machine with optional damper cage |
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smeeE |
Type: SM_ElectricalExcited Description: Electrical excited synchronous machine with damper cage |
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groundM |
Type: Ground Description: Ground node |
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groundE |
Type: Ground Description: Ground node |
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rampCurrentM |
Type: RampCurrent Description: Ramp current source |
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rampCurrentE |
Type: RampCurrent Description: Ramp current source |
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rotorAngleM |
Type: RotorDisplacementAngle Description: Rotor lagging angle |
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rotorAngleE |
Type: RotorDisplacementAngle Description: Rotor lagging angle |
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mechanicalPowerSensorM |
Type: MechanicalPowerSensor Description: Mechanical power = torque x speed |
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mechanicalPowerSensorE |
Type: MechanicalPowerSensor Description: Mechanical power = torque x speed |
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constantSpeedM |
Type: ConstantSpeed Description: Constant speed, not dependent on torque |
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constantSpeedE |
Type: ConstantSpeed Description: Constant speed, not dependent on torque |
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smeeData |
Type: SynchronousMachineData Description: Synchronous machine data |