  The objective of this research is to mitigate vibrations in induction motors.
To achieve this goal, a discontinuous pulse width modulation (PWM) control
strategy based on carrier wave modulation is proposed for multilevel inverters.
This study provides justification for the reduction of machine vibrations
compared to existing control techniques documented in the technical literature.
Additionally, the proposed technique offers the advantage of attenuating the
Total Harmonic Distortion of the multilevel inverter's output voltage while
simultaneously achieving a higher RMS value for the same DC level. By modifying
a parameter of the carrier wave, the control strategy allows for variations in
the electrical spectrum while avoiding natural mechanical resonance
frequencies, thereby reducing motor vibrations. Laboratory results
demonstrating the application of different modulation strategies in a
multilevel inverter for an induction motor and a comparison with the presented
strategy are provided
