Pulse Width Modulation Technique for Nine-phase Electric Vehicle Drive System

Abstract

Multiphase machines have many advantages such as smoother toque and low stator current at each phase without increasing the stator voltage per phase and are mainly used in industrial applications. By implementing nine phase drive system the stator current reduces at each phase, which neglects the use of high-cost bulky power harnessing equipment’s that are used in the conventional 3-phase electric vehicle drive system. In this article, a nine phase electric vehicle inverter is designed for the electric vehicle drive system. Choosing a pulse width modulation technique is the foremost criterion. In this article sinusoidal pulse width modulation and space vector pulse width modulation technique is simulated and comparison is made based on the quality of power output. The simulation is modeled through Simulink software and the results are presented.