Torque Ripple Minimization in BLDC Drive using PWM-ON-PWM Scheme

In this paper, a detailed analysis on torque ripples of brushless dc drives in both commutation and conduction region is given. A new control strategy for the elimination of torque ripples in BLDC motor by employing PWM-ON -PWM scheme has been introduced. PWM-ON-PWM strategy is mainly applied to compensate the commutation torque ripples during commutation period caused by commutation current and it cannot entirely remove the torque ripples that are resulted from current introducing in the turn off phase.

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International Journals of Advanced Information Science and Technology (IJAIST)