Damping the rotor oscillation of a synchronous motor with permanent magnet in synchronous mode

The main disadvantage of synchronous motors with permanent magnet in synchronous mode is sufficiently high rotor oscillation inherent in all synchronous motors and leads to uneven rotation of the rotor. This article provides a theoretical foundation and specific example of the implementation of one of the ways of damping of rotor oscillation in motor with permanent magnet in synchronous mode by introducing a current feedback to the impact on the stator phase voltage.