Analysis of Dual Inverter Fed Open-End Winding Induction Motor Drives

In this paper, a simplified SVPWM algorithm is described. In the conventional SVPWM lookup tables are needed for the generation of space vector locations and sector identification is most time consuming task, with the zero sequence component concept, the actual times for each inverter legs are reduced directly. The simplified SVPWM algorithm has the high performance voltage generation capability compare to conventional SVPWM. As well as giving a detailed explanation of the new algorithm, this paper also presents the comparison results for the different phase sequence between the inverters. To validate the simplified algorithm, simulation studies have been carried out on open end winding induction motor and results are presented in the paper.