Performance Analysis of Switching Techniques in Modular Multilevel Converter Fed Induction Motor

Modular multilevel converter (MMC) has been using for industrial motor drive specially three-phase induction motor drive applications over a decade. The switching techniques in MMC play a vital role to improve the power quality for induction motor drive. In this paper, the performance of various existing switching techniques in 11- level MMC fed induction motor is investigated through MATLAB/Simulink simulation results. The performance of switching techniques is studied in terms of speed, torque, inrush current, inverter output current, and total harmonic distortion (THD). Based on the simulation results, high performance switching technique is identified and challenges associated with the selection of the appropriate switching technique are highlighted.