Harmonics and torque ripple reduction of Brushless DC motor (BLDCM) using Cascaded H-Bridge multilevel inverter

Abstract

Brushless DC motors are widely used in variable speed drive application. The torque produced by the Brushless DC (BLDC) motors with trapezoidal back Electromotive force (BEMF) is constant under ideal condition. However in practice the torque ripple appears on the delivered output torque. Smoothness of variable speed drive operation is critical due to this… (More)

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