Dual three phase induction motor control using Five Leg Inverter

This paper presents the Dual Induction Motor Control using Single Five Leg Inverter (FLI). The Inverter used in this technique consists of Five Leg's instead of Six Leg's as used in conventional drive control for two induction motors. The main objective of this FLI technique to incorporate this work to reduce the switching elements and which will eventually reduce the cost, weight and size of the drive technology. The Industries are looking performance improvements where the FLI technique can be integrated to multi motor control. In this proposed work the Sinusoidal Pulse Width Modulation Technique (SPWM) is used to control dual motors fed to FLI system. The output voltage and current waveform depends on the switching schemes applied to drive control system. The SPWM switching technique found to be most useful and suitable method when employed with dual motors connected to single inverter system. This paper investigates the independent speed control of two induction motors at different speeds connected to voltage source inverter system using MATLAB/SIMULINK Software.