WOLFRAM SYSTEMMODELER

AIMS_Start

Starting of asynchronous induction machine with slip rings

Diagram

Wolfram Language

In[1]:=
SystemModel["Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.AIMS_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 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 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 current
  • aimsM/E.wMechanical: machine speed
  • aimsM|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.SIunits.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: AIM_SlipRingData

Components (18)

ground

Type: Ground

star

Type: Star

sineVoltage

Type: SineVoltage

idealCloser

Type: IdealClosingSwitch

booleanStep

Type: BooleanStep[m]

currentRMSsensorM

Type: CurrentQuasiRMSSensor

currentRMSsensorE

Type: CurrentQuasiRMSSensor

terminalBoxM

Type: TerminalBox

terminalBoxE

Type: TerminalBox

aimsM

Type: AIM_SlipRing

aimsE

Type: AIM_SlipRing

rheostatM

Type: SwitchedRheostat

rheostatE

Type: SwitchedRheostat

loadInertiaM

Type: Inertia

loadInertiaE

Type: Inertia

quadraticLoadTorqueM

Type: QuadraticSpeedDependentTorque

quadraticLoadTorqueE

Type: QuadraticSpeedDependentTorque

aimsData

Type: AIM_SlipRingData