WOLFRAM SYSTEMMODELER

SMEE_Generator

Electrical excited synchronous machine operating as generator

Diagram

Wolfram Language

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SystemModel["Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SMEE_Generator"]
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Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

Electrical excited synchronous induction 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 torque
  • mechanicalPowerSensorM|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.SIunits.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

Components (20)

star

Type: Star

ground

Type: Ground

sineVoltage

Type: SineVoltage

electricalPowerSensorM

Type: ElectricalPowerSensor

electricalPowerSensorE

Type: ElectricalPowerSensor

terminalBoxM

Type: TerminalBox

terminalBoxE

Type: TerminalBox

smeeM

Type: SM_ElectricalExcited

smeeE

Type: SM_ElectricalExcited

groundM

Type: Ground

groundE

Type: Ground

rampCurrentM

Type: RampCurrent

rampCurrentE

Type: RampCurrent

rotorAngleM

Type: RotorDisplacementAngle

rotorAngleE

Type: RotorDisplacementAngle

mechanicalPowerSensorM

Type: MechanicalPowerSensor

mechanicalPowerSensorE

Type: MechanicalPowerSensor

constantSpeedM

Type: ConstantSpeed

constantSpeedE

Type: ConstantSpeed

smeeData

Type: SynchronousMachineData