Performance evaluation of eleven-phase induction machine with different PWM techniques

Abstract EN

Multiphase induction machines are used extensively in low and medium voltage (MV) drives.

In MV drives, power switches have a limitation associated with switching frequency.

This paper is a comparative study of the eleven-phase induction machine’s performance when used as a prototype and fed sinusoidal pulse-width-modulation (SPWM) with a low switching frequency, selective harmonic elimination (SHE), and single pulse modulation (SPM) techniques.

The comparison depends on voltage/frequency controls for the same phase of voltage applied on the machine terminals for all previous techniques.

The comparative study covers torque ripple, stator and harmonic currents, and motor efficiency