.Modelica.Electrical.Machines.Examples.SynchronousMachines.SMPM_NoLoad

Information

Synchronous machine with permanent magnets at no-load, driven with linear time dependent speed.

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

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.