WOLFRAM SYSTEMMODELER

AIMS_Start

Test example: AsynchronousInductionMachineSlipRing

Diagram

Wolfram Language

In[1]:=
SystemModel["Modelica.Electrical.Machines.Examples.AsynchronousInductionMachines.AIMS_Start"]
Out[1]:=

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 asynchronous induction machine with sliprings; the machine starts from standstill, accelerating inertias against load torque quadratic dependent on speed, using a starting resistance. At time tStart2 external rotor resistance is shortened, finally reaching nominal speed.

Simulate for 1.5 seconds and plot (versus time):

  • currentQuasiRMSSensor.I: stator current RMS
  • aims.wMechanical: motor's speed
  • aims.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

Rstart

Value: 0.16 / aimsData.turnsRatio ^ 2

Type: Resistance (Ω)

Description: Starting resistance

tStart2

Value: 1.0

Type: Time (s)

Description: Start time of shorting starting resistance

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

aimsData

Value:

Type: AIM_SlipRingData

Components (12)

aims

Type: AIM_SlipRing

currentQuasiRMSSensor

Type: CurrentQuasiRMSSensor

sineVoltage

Type: SineVoltage

star

Type: Star

ground

Type: Ground

booleanStep

Type: BooleanStep[m]

idealCloser

Type: IdealClosingSwitch

loadInertia

Type: Inertia

quadraticLoadTorque

Type: QuadraticSpeedDependentTorque

terminalBox

Type: TerminalBox

switchedRheostat

Type: SwitchedRheostat

aimsData

Type: AIM_SlipRingData