In this paper, design of autotransformer based 18 Step AC-DC converter fed vector controlled Switched Reluctance motor drive is presented and its Matlab/Simulink model is given. The design procedure for proposed autotransformers shows the flexibility in the design for making it a cost effective replacement suitable for retrofit applications, where presently a six pulse diode bridge rectifier is used. Using 18-pulse configuration of the vector controlled Switched Reluctance motor drive (VCSMD) the higher order harmonics (even 13) is being suppressed. Simulation results of SRMD were obtained in MATLAB & SIMULINK with NO LOAD & ON LOAD.

Keywords: Autotransformer, multi pulse AC-DC converter, power quality, and vector controlled Switched reluctance motor drive (VCSRMD).