WOLFRAM SYSTEM MODELER
IMC_TransformerTest example: InductionMachineSquirrelCage transformer starting |
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Diagram
Wolfram Language
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SystemModel["Modelica.Electrical.Machines.Examples.InductionMachines.IMC_Transformer"]
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Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
At start time tStart1 three-phase voltage is supplied to the induction machine with squirrel cage via the transformer; the machine starts from standstill, accelerating inertias against load torque quadratic dependent on speed; at start time tStart2 the machine is fed directly from the voltage source, finally reaching nominal speed.
Simulate for 2.5 seconds and plot (versus time):
- currentQuasiRMSSensor.I: stator current RMS
- aimc.wMechanical: motor's speed
- aimc.tauElectrical: motor's torque
Default machine parameters are used.
Parameters (9)
| VNominal |
Value: 100 Type: Voltage (V) Description: Nominal RMS voltage per phase |
|---|---|
| fNominal |
Value: 50 Type: Frequency (Hz) Description: Nominal frequency |
| tStart1 |
Value: 0.1 Type: Time (s) Description: Start time |
| tStart2 |
Value: 2.0 Type: Time (s) Description: Start time of bypass transformer |
| TLoad |
Value: 161.4 Type: Torque (N⋅m) Description: Nominal load torque |
| wLoad |
Value: 1440.45 * 2 * Modelica.Constants.pi / 60 Type: AngularVelocity (rad/s) Description: Nominal load speed |
| JLoad |
Value: 0.29 Type: Inertia (kg⋅m²) Description: Load's moment of inertia |
| transformerData |
Value: Type: TransformerData Description: Transformer data |
| aimcData |
Value: Type: IM_SquirrelCageData Description: Induction machine data |
Components (16)
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aimc |
Type: IM_SquirrelCage Description: Induction machine with squirrel cage rotor |
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currentQuasiRMSSensor |
Type: CurrentQuasiRMSSensor Description: Length of space phasor -> RMS current |
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sineVoltage |
Type: SineVoltage Description: Polyphase sine voltage source |
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star |
Type: Star Description: Star-connection |
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ground |
Type: Ground Description: Ground node |
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booleanStep1 |
Type: BooleanStep[m] Description: Generate step signal of type Boolean |
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idealCloser |
Type: IdealClosingSwitch Description: Polyphase ideal closer |
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transformer |
Type: Yy00 Description: Transformer Yy0 |
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ground2 |
Type: Ground Description: Ground node |
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transformerData |
Type: TransformerData Description: Transformer data |
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booleanStep2 |
Type: BooleanStep[m] Description: Generate step signal of type Boolean |
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idealCommutingSwitch |
Type: IdealCommutingSwitch Description: Polyphase ideal commuting switch |
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loadInertia |
Type: Inertia Description: 1D-rotational component with inertia |
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quadraticLoadTorque |
Type: QuadraticSpeedDependentTorque Description: Quadratic dependency of torque versus speed |
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terminalBox |
Type: TerminalBox Description: Terminal box Y/D-connection |
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aimcData |
Type: IM_SquirrelCageData Description: Induction machine data |
Extended by (1)
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Modelica.Electrical.Machines.Examples.Transformers Test example: InductionMachineSquirrelCage transformer starting |