A 3-phase PWM strategy using a stepped reference waveform (for drive control)

A carrier-based, three-phase pulse-width modulation (PWM) technique for the control of motor drives that uses a stepped waveform as the reference signal is presented. The theoretical derivation of the stepped reference signal from a square-wave reference is described. Comparisons with existing sinewave PWM techniques, adopting third-harmonic boosting and… CONTINUE READING