WOLFRAM SYSTEM MODELER
IMS_StartStarting of induction machine with slip rings |
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Diagram
Wolfram Language
In[1]:=
SystemModel["Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMS_Start"]
Out[1]:=
Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
At start time tOn three-phase voltage is supplied to the
induction machine with sliprings.
The machine starts from standstill, accelerating inertias against load torque quadratic dependent on speed,
using a starting resistance. At time tRheostat external rotor resistance is shortened, finally reaching nominal speed.
Simulate for 1.5 seconds and plot (versus time):
currentRMSsensorM|E.I: equivalent RMS stator currentaimsM/E.wMechanical: machine speedaimsM|E.tauElectrical: machine torque
Parameters (9)
| VsNominal |
Value: 100 Type: Voltage (V) Description: Nominal RMS voltage per phase |
|---|---|
| fNominal |
Value: aimsData.fsNominal Type: Frequency (Hz) Description: Nominal frequency |
| tOn |
Value: 0.1 Type: Time (s) Description: Start time of machine |
| RStart |
Value: 0.16 / aimsData.turnsRatio ^ 2 Type: Resistance (Ω) Description: Starting resistance |
| tRheostat |
Value: 1.0 Type: Time (s) Description: Time of shortening the rheostat |
| T_Load |
Value: 161.4 Type: Torque (N⋅m) Description: Nominal load torque |
| w_Load |
Value: Modelica.Units.Conversions.from_rpm(1440.45) Type: AngularVelocity (rad/s) Description: Nominal load speed |
| J_Load |
Value: 0.29 Type: Inertia (kg⋅m²) Description: Load inertia |
| aimsData |
Value: Type: IM_SlipRingData Description: Induction machine data |
Components (18)
 |
ground |
Type: Ground Description: Ground node |
|---|---|---|
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star |
Type: Star Description: Star-connection |
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sineVoltage |
Type: SineVoltage Description: Polyphase sine voltage source |
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idealCloser |
Type: IdealClosingSwitch Description: Polyphase ideal closer |
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booleanStep |
Type: BooleanStep[m] Description: Generate step signal of type Boolean |
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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 |
|
terminalBoxE |
Type: TerminalBox Description: Terminal box Y/D-connection |
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aimsM |
Type: IM_SlipRing Description: Induction machine with slip ring rotor |
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aimsE |
Type: IM_SlipRing Description: Induction machine with slipring rotor |
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rheostatM |
Type: SwitchedRheostat Description: Rheostat which is shortened after a given time |
|
rheostatE |
Type: SwitchedRheostat Description: Rheostat which is shortened after a given time |
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loadInertiaM |
Type: Inertia Description: 1D-rotational component with inertia |
|
loadInertiaE |
Type: Inertia Description: 1D-rotational component with inertia |
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quadraticLoadTorqueM |
Type: QuadraticSpeedDependentTorque Description: Quadratic dependency of torque versus speed |
|
quadraticLoadTorqueE |
Type: QuadraticSpeedDependentTorque Description: Quadratic dependency of torque versus speed |
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aimsData |
Type: IM_SlipRingData Description: Induction machine data |