On the Behavior of Five-Phase Induction Motor Drive Under Normal and Faulty Conditions

Abstract

This paper describes the importance and applications of multi-phase electrical machines. The components of the five-phase electrical drive were analyzed. Due to the MATLAB/Simulink model, the simulation of the electrical drive under normal mode and faulty conditions was carried out to analyze the performance of the five-phase induction motor. Several cases of faulty conditions caused by unbalanced voltage system were considered and the simulation results of stator phase’s currents, rotor speed and electromagnetic torque were analyzed in more detail. The importance of this study is related to the various applications of multi-phase machines in different fields of industry and a lot of scientific researches based on this topic. Simulation results have shown that the five-phase machine is very reliable and it has better fault tolerance due to its slightly affected by the unbalanced voltage system.