SYSTEM AND METHOD FOR DAMPING OF MECHANICAL OSCILLATON OF A ROTOR OF AN ELECTRIC MACHINE IN A VEHICLE

An inverter system is configured to mitigate oscillation of a rotary system that drives a generator or electric machine. A torque damping module is configured to receive a commanded torque or an observed torque and to generate a commanded compensating torque to dampen any mechanical oscillation or resonance of the rotary system based on the observed rotational speed of the generator. The torque damping module further comprises a digital filter of order greater than one, a gain adjuster and a limiter.