Influence of position and current sensor on torque ripple harmonic orders in electric drives

Position and current sensors are integral components in the majority of drive applications. In scenarios where torque ripple sensitivity is of utmost importance, these sensors contribute to the end torque ripple in the system. The interaction of motor design, type, and sensor error collectively influences the torque ripple at the system level. This paper aims to present generalized equations that enable the quantification of the magnitudes and order of the torque ripple at the system level. The proposed equations will aid in better understanding the impact of these sensors on torque ripple in drive applications, thus enhancing the overall system performance.