WOLFRAM SYSTEM MODELER

SMPM_CurrentSource

Test example: PermanentMagnetSynchronousMachine fed by current source

Diagram

Wolfram Language

In[1]:=
SystemModel["Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SynchronousMachines.SMPM_CurrentSource"]
Out[1]:=

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

A synchronous machine with permanent magnets accelerates a quadratic speed dependent load from standstill. The rms values of d- and q-current in rotor fixed coordinate system are converted to three-phase currents, and fed to the machine. The result shows that the torque is influenced by the q-current, whereas the stator voltage is influenced by the d-current.

Default machine parameters are used.

Parameters (5)

Idq

Value: {-53.5, 84.6}

Type: Current[2] (A)

Description: Desired d- and q-current

wNominal

Value: 2 * pi * smpmData.fsNominal / smpmData.p

Type: AngularVelocity (rad/s)

Description: Nominal speed

TLoad

Value: 181.4

Type: Torque (N⋅m)

Description: Nominal load torque

JLoad

Value: 0.29

Type: Inertia (kg⋅m²)

Description: Load's moment of inertia

smpmData

Value:

Type: SM_PermanentMagnetData

Description: Synchronous machine data

Components (19)

smpm

Type: SM_PermanentMagnet

Description: Permanent magnet synchronous machine with optional damper cage

signalCurrent

Type: SignalCurrent

Description: Polyphase signal current source

star

Type: Star

Description: Star-connection

ground

Type: Ground

Description: Ground node

dqToThreePhase

Type: DQToThreePhase

Description: Transforms dq to three-phase

iq

Type: Constant

Description: Generate constant signal of type Real

id

Type: Constant

Description: Generate constant signal of type Real

voltageQuasiRMSSensor

Type: VoltageQuasiRMSSensor

Description: Length of space phasor -> RMS voltage

starM

Type: Star

Description: Star-connection

groundM

Type: Ground

Description: Ground node

terminalBox

Type: TerminalBox

Description: Terminal box Y/D-connection

rotorDisplacementAngle

Type: RotorDisplacementAngle

Description: Rotor lagging angle

angleSensor

Type: AngleSensor

Description: Ideal sensor to measure the absolute flange angle

torqueSensor

Type: TorqueSensor

Description: Ideal sensor to measure the torque between two flanges (= flange_a.tau)

speedSensor

Type: SpeedSensor

Description: Ideal sensor to measure the absolute flange angular velocity

inertiaLoad

Type: Inertia

Description: 1D-rotational component with inertia

quadraticSpeedDependentTorque

Type: QuadraticSpeedDependentTorque

Description: Quadratic dependency of torque versus speed

smpmData

Type: SM_PermanentMagnetData

Description: Synchronous machine data

currentQuasiRMSSensor

Type: CurrentQuasiRMSSensor

Description: Length of space phasor -> RMS current