WOLFRAM SYSTEM MODELER
SMPM_InverterStarting of permanent magnet synchronous machine with inverter |
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Diagram
Wolfram Language
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SystemModel["Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SynchronousMachines.SMPM_Inverter"]
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Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
Permanent magnet synchronous machine fed by an ideal inverter
An ideal frequency inverter is modeled by using a VfController and a three-phase SignalVoltage. Frequency is raised by a ramp, causing the permanent magnet synchronous machine to start, and accelerate the inertias.
At time tStep a load step is applied. Simulate for 1.5 seconds and plot (versus time):
currentRMSsensorM|E.I: equivalent RMS stator currentsmpmM|E.wMechanical: machine speedsmpmM|E.tauElectrical: machine torquerotorAnglepmsmM|E.rotorDisplacementAngle: rotor displacement angle
Parameters (8)
| VsNominal |
Value: 100 Type: Voltage (V) Description: Nominal RMS voltage per phase |
|---|---|
| fsNominal |
Value: smpmData.fsNominal Type: Frequency (Hz) Description: Nominal frequency |
| fKnee |
Value: 50 Type: Frequency (Hz) Description: Knee frequency of V/f curve |
| tRamp |
Value: 1 Type: Time (s) Description: Frequency ramp |
| T_Load |
Value: 181.4 Type: Torque (N⋅m) Description: Nominal load torque |
| tStep |
Value: 1.2 Type: Time (s) Description: Time of load torque step |
| J_Load |
Value: 0.29 Type: Inertia (kg⋅m²) Description: Load inertia |
| smpmData |
Value: Type: SM_PermanentMagnetData Description: Synchronous machine data |
Components (18)
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ground |
Type: Ground Description: Ground node |
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star |
Type: Star Description: Star-connection |
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signalVoltage |
Type: SignalVoltage Description: Polyphase signal voltage source |
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ramp |
Type: Ramp Description: Generate ramp signal |
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vfController |
Type: VfController Description: Voltage-Frequency-Controller |
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currentRMSsensorM |
Type: CurrentQuasiRMSSensor Description: Continuous quasi current RMS sensor for polyphase system |
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currentRMSsensorE |
Type: CurrentQuasiRMSSensor Description: Length of space phasor -> RMS current |
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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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smpmM |
Type: SM_PermanentMagnet Description: Permanent magnet synchronous machine with optional damper cage |
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smpmE |
Type: SM_PermanentMagnet Description: Permanent magnet synchronous machine |
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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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loadInertiaM |
Type: Inertia Description: 1D-rotational component with inertia |
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loadInertiaE |
Type: Inertia Description: 1D-rotational component with inertia |
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torqueStepM |
Type: TorqueStep Description: Constant torque, not dependent on speed |
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torqueStepE |
Type: TorqueStep Description: Constant torque, not dependent on speed |
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smpmData |
Type: SM_PermanentMagnetData Description: Synchronous machine data |