Dual Three-Phase Inverter Using a Single Processor to Drive Two Motors in Electric Vehicle Applications

Abstract

Typical dual-motor or multiple-motor applications include industrial machine, heating ventilation air conditioning equipment, automobiles, and many others. The traditional method to control a dual-motor is using two separate processors developed for power circuits. In this paper, a proposed control scheme using only one controller to drive a dual-inverter supplying voltage directly to two separate motors is described. The field oriented control (FOC) technique is investigated to control motors in the proposed control configuration. The proposed scheme is absolutely useful and necessary for vehicle applications because its outstanding contribution of reduced number of controllers helps to save space in a car and decreases overall costs in automobile mass production. All control algorithms to drive dual-motor system are implemented by software program only implemented by a digital signal processor (DSP) controller without any additional processor or hardware prototype. Simplicity, flexibility, and possibility of dual three-phase inverter for the two-motor system control in vehicle applications are the major considerations in this study.