modelIMC_DOL

Induction machine with squirrel cage started directly on line (DOL)
Diagram of IMC_DOL

Extends from Modelica.Icons.Example (Icon for runnable examples).

Information

Description

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 machines starts from standstill, accelerating inertias against load torque quadratic dependent on speed, finally reaching nominal speed.

Plot the following variable(s)

  • imc.tauElectrical: transient torque
  • imc.wMechanical: transient speed
  • imc.tauElectrical against imc.wMechanical: transient torque speed characteristic
  • imcQS.tauElectrical: quasi static torque
  • imcQS.wMechanical: quasi static speed
  • imcQS.tauElectrical against imcQS.wMechanical: quasi static torque speed characteristic
  • currentRMSsensor.I: quasi RMS stator current of transient machine
  • currentRMSSensorQS.I: RMS stator current of quasi static machine
  • imc.stator.electroMagneticConverter.abs_Phi: magnitude of stator flux of transient machine
  • imcQS.stator.electroMagneticConverter.abs_Phi: magnitude of stator flux of quasi static machine

Parameters

TypeNameDefaultDescription
Integerm3Number of phases
IntegermBaseModelica.Electrical.Polyphase.Functions.numberOfSymmetricBaseSystems(m)Number of base systems
Modelica.Units.SI.VoltageVsNominal100Nominal RMS voltage per phase
Modelica.Units.SI.CurrentIsNominal100Nominal RMS current per phase
Modelica.Units.SI.FrequencyfsNominalimc.fsNominalNominal frequency
Modelica.Units.SI.TimetOn0.1Start time of machine
Modelica.Units.SI.TorquetauLoad161.4Nominal load torque
Modelica.Units.SI.AngularVelocityw_Load1440.45*2*Modelica.Constants.pi/60Nominal load speed
Modelica.Units.SI.InertiaJLoad0.5Load inertia
Integerp2Number of pole pairs
ParameterRecords.IMCimcDataInduction machine parameters

Components

TypeNameDefaultDescription
Modelica.Units.SI.CurrentIcurrentRMSSensor.ITransient RMS current
Modelica.Units.SI.CurrentIqscurrentRMSSensorQS.IQS RMS current
Modelica.Electrical.QuasiStatic.Polyphase.Sources.VoltageSourcevoltageSourceQS
Modelica.Electrical.QuasiStatic.Polyphase.Basic.StarstarQS
Modelica.Electrical.QuasiStatic.SinglePhase.Basic.GroundgroundQS
Modelica.Electrical.QuasiStatic.Polyphase.Sensors.PowerSensorpowerSensorQS
Modelica.Electrical.QuasiStatic.Polyphase.Sensors.CurrentQuasiRMSSensorcurrentRMSSensorQS
Modelica.Electrical.QuasiStatic.Polyphase.Ideal.IdealClosingSwitchidealCloserQS
Modelica.Blocks.Sources.BooleanStep[m]booleanStepQS
Modelica.Electrical.Analog.Basic.Groundground
Modelica.Electrical.Polyphase.Basic.Starstar
Modelica.Electrical.Polyphase.Sources.CosineVoltagecosineVoltage
Modelica.Electrical.Polyphase.Ideal.IdealClosingSwitchidealCloser
Modelica.Blocks.Sources.BooleanStep[m]booleanStep
Modelica.Electrical.Polyphase.Sensors.CurrentQuasiRMSSensorcurrentRMSSensor
Modelica.Electrical.Machines.Utilities.MultiTerminalBoxterminalBox
Modelica.Magnetic.FundamentalWave.BasicMachines.InductionMachines.IM_SquirrelCageimc
Modelica.Mechanics.Rotational.Components.InertialoadInertia
Modelica.Mechanics.Rotational.Sources.QuadraticSpeedDependentTorquequadraticLoadTorque
Modelica.Electrical.Polyphase.Sensors.PowerSensorpowerSensor
Modelica.Mechanics.Rotational.Components.InertialoadInertiaQS
Modelica.Mechanics.Rotational.Sources.QuadraticSpeedDependentTorquequadraticLoadTorqueQS
Modelica.Magnetic.QuasiStatic.FundamentalWave.BasicMachines.InductionMachines.IM_SquirrelCageimcQS
Modelica.Electrical.QuasiStatic.SinglePhase.Basic.GroundgroundMachineQS
Modelica.Electrical.QuasiStatic.Polyphase.Basic.StarstarMachineQS
Modelica.Magnetic.QuasiStatic.FundamentalWave.Utilities.MultiTerminalBoxterminalBoxQS
Modelica.Electrical.Polyphase.Basic.StarstarMachine
Modelica.Electrical.Analog.Basic.GroundgroundMachine