WOLFRAM SYSTEM MODELER

SMPM_NoLoad

SMPM at no-load

Diagram

Wolfram Language

In[1]:=
SystemModel["Modelica.Electrical.Machines.Examples.SynchronousMachines.SMPM_NoLoad"]
Out[1]:=

Information

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

Synchronous machine with permanent magnets at no-load, driven with constant nominal speed.

You may check the terminal voltage = VsOpenCircuit (shown by the length of the space phasor) and the frequency = fsNominal.

Additionally, you may check the phase shift of the stator voltages with respect to the mechanical shaft angle:

  • If the shaft angle starts at (pi + 0*pi/3)/p, the flux linkage through phase 1 is at the maximum and therefore this phase voltage starts at 0.
  • If the shaft angle starts at (pi + 2*pi/3)/p, the flux linkage through phase 2 is at the maximum and therefore this phase voltage starts at 0.
  • If the shaft angle starts at (pi + 4*pi/3)/p, the flux linkage through phase 3 is at the maximum and therefore this phase voltage starts at 0.

Note that the angle of the voltage space phasor is pi/2 behind the angle of the hall sensor, i.e. after a rotation of the shaft by pi/2/p the flux linkage of phase 1 is zero and the induced voltage a maximum.

Parameters (1)

smpmData

Value:

Type: SM_PermanentMagnetData

Description: Synchronous machine data

Components (10)

smpmData

Type: SM_PermanentMagnetData

Description: Synchronous machine data

smpm

Type: SM_PermanentMagnet

Description: Permanent magnet synchronous machine

terminalBox

Type: TerminalBox

Description: Terminal box Y/D-connection

ground

Type: Ground

Description: Ground node

potentialSensor

Type: PotentialSensor

Description: Polyphase potential sensor

toSpacePhasor

Type: ToSpacePhasor

Description: Conversion of polyphase instantaneous values to space phasors

toPolar

Type: ToPolar

Description: Converts a space phasor to polar coordinates

toDeg

Type: Gain

Description: Output the product of a gain value with the input signal

hallSensor

Type: HallSensor

Description: Hall sensor

constantSpeed

Type: ConstantSpeed

Description: Constant speed, not dependent on torque