.HanserModelica.SynchronousMachines.SMPM_CurrentSource

Information

Description

This example investigates a quasi static model of a permanent magnet synchronous machine. The machine is fed by a current source. The current components are oriented at the magnetic field orientation and transformed to the stator fixed reference frame. This way the machines are operated at constant torque. The machines start to accelerate from standstill.

In this simulation the angle is the following angles are calculated:

• phiv = angle of voltage phasor
• phii = angle of current phasor
• phis = phiv - phii = angle between voltage and current phasor
• theta = rotor displacement angle
• epsilon = phis - theta = current angle

Note

The resistors connected to the terminals of the windings of the quasi static machine model are necessary to numerically stabilize the simulation.

Plot the following variable(s)

• smpm.wMechanical: speed
• smpm.abs_vs[1]: RMS stator voltage of phase 1
• smpm.abs_vs[1] against smpm.wMechanical: voltage versus speed characteristic of machine
• phis against smpm.wMechanical: phase angle between voltage and current phasor against speed
• epsilon against smpm.wMechanical: current angle against speed
• theta against smpm.wMechanical: rotor displacement angle against speed