公开(公告)号：US20230145167A1

公开(公告)日：2023-05-11

申请号：US17916390

申请日：2020-04-01

Applicant: Cummins Inc.

Inventor： Akm Arafat ,  Bradford K.O. Palmer ,  S. Dakshina Murthy-Bellur ,  Minyu Cai

IPC: H02P6/10 ,  H02P29/50

CPC classification number: H02P6/10 ,  H02P29/50

Abstract: A method for operating a motor control system to dynamically compensate for low-frequency and/or high-frequency torque ripple. Embodiments include receiving an input command, receiving drive feedback signals representative of drive currents in a motor, identifying harmonics in the drive feedback signals representative of motor torque ripple, producing torque ripple compensation signals based on the identified harmonics; and producing motor drive control signals based on the input command, the current feedback signals, the torque ripple compensation signals, and carrier signals with a certain phase shift.