IMC_DOL
IMC_Inverter
IMS_Start
Induction machine examples
Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).
| Name | Description |
|---|---|
| IMC_DOL
|
Induction machines with squirrel cage started directly on line (DOL) |
| IMC_Inverter
|
Test example: InductionMachineSquirrelCage with inverter |
| IMS_Start
|
Starting of induction machine with slip rings |
Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_DOLInduction machines with squirrel cage started directly on line (DOL)
This example compares a time transient and a quasi static model of a multi phase induction machine. At start time tOn a transient and a quasi static multi phase voltage source are connected to an induction machine. The machine starts from standstill, accelerating inertias against load torque quadratic dependent on speed, finally reaching nominal speed.
Simulate for 1 second and plot (versus time):
currentRMSsensor.I|currentSensorQS.abs_i[1]: (equivalent) RMS stator currentimc|imcQS.wMechanical: machine speedimc|imcQS.tauElectrical: machine torqueExtends from Modelica.Icons.Example (Icon for runnable examples).
| Name | Description |
|---|---|
| m | Number of phases |
| VsNominal | Nominal RMS voltage per phase [V] |
| fNominal | Nominal frequency [Hz] |
| tOn | Start time of machine [s] |
| T_Load | Nominal load torque [N.m] |
| w_Load | Nominal load speed [rad/s] |
| J_Load | Load inertia [kg.m2] |
| p | Number of pole pairs |
| imcData | Machine data |
Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMC_InverterTest example: InductionMachineSquirrelCage with inverter
This example compares a time transient and a quasi static model of a multi phase induction machine.
An ideal frequency inverter is modeled by using a VfController and a multi phase SignalVoltage.
Frequency is raised by a ramp, causing the induction machine with squirrel cage to start,
and accelerating inertias. At time tStep a load step is applied.
Simulate for 1.5 seconds and plot (versus time):
currentRMSsensor.I|currentSensorQS.abs_i[1]: (equivalent) RMS stator currentimc|imcQS.wMechanical: machine speedimc|imcQS.tauElectrical: machine torque
Extends from Modelica.Icons.Example (Icon for runnable examples).
Parameters
Name Description m Number of phases VNominal Nominal RMS voltage per phase [V] fNominal Nominal frequency [Hz] f Actual frequency [Hz] tRamp Frequency ramp [s] TLoad Nominal load torque [N.m] tStep Time of load torque step [s] JLoad Load's moment of inertia [kg.m2] imcData Machine data
Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines.IMS_Start
Starting of induction machine with slip rings
Information
Starting of an induction machine with slipring rotor resistance starting
This example compares a time transient and a quasi static model of a multi phase induction machine.
At start time tOn a transient and a quasi static multi phase voltage source are connected to 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):
currentRMSsensor.I|currentSensorQS.abs_i[1]: (equivalent) RMS stator currentims|imsQS.wMechanical: machine speedims|imsQS.tauElectrical: machine torque
Extends from Modelica.Icons.Example (Icon for runnable examples).
Parameters
Name Description m Number of stator phases mr Number of rotor phases VsNominal Nominal RMS voltage per phase [V] fNominal Nominal frequency [Hz] tOn Start time of machine [s] RStart Starting resistance [Ohm] tRheostat Time of shortening the rheostat [s] T_Load Nominal load torque [N.m] w_Load Nominal load speed [rad/s] J_Load Load inertia [kg.m2] imsData Machine data
Automatically generated Tue Apr 05 09:36:36 2016.