Abstract:The conventional induction motor driven system which was equipped with twolevel converter had the problem of large torque ripples. Aiming at it, a torque ripple minimization control for multipole induction motor driven by modular multilevel converter was proposed. The modular multilevel drive converter topology was designed based on the multipole induction motor, and a unipolar carrier phase shifted SVPWM technique was adopted for the controller. Through the analysis and calculation of pulse sequence generation, all low order harmonics achieve four fold frequency of switching frequency, and then minimize the torque ripples. The experimental research had been carried out based on multipole induction motor drive test platform with modular multilevel converter. The test results verified the effectiveness of the new control strategy, and the torque ripple of the motor was improved obviously.