Analysis, Simulation and Performance Comparison of AC Voltage Controller Fed Three Wire and Four Wire Connected Induction Motor Drives

The aim of this work is to evaluate and compare the performance characteristics of a voltage controller driven star connected induction, motor drives with three wire and four wire configurations. Mathematical modeling and steady state simulation of the two circuit topologies are examined and performance of the two schemes in terms of certain electrical characteristics such as input power drawn, input power factor, Total Harmonic Distortion (THD) of input current and motor terminal voltage etc is compared. It is shown that the three wire scheme is superior in performance when compared to four wire schemes. Experimental results are provided to supplement the computed results.