TY - GEN
T1 - Ripple Analysis and Reduction of a Dual-PM Direct-Drive Machine by a Harmonic Current Injection Approach
AU - Ma, Yue
AU - Niu, Shuangxia
AU - Fu, Weinong
AU - Fei, Jiaqi
AU - Huang, Jiahui
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023/12/14
Y1 - 2023/12/14
N2 - The Dual permanent magnet machine (DPMM) possesses the characteristics of high torque and low speed which is suitable for direct-drive equipment. Because of the low magnetic reluctance of this motor, the torque is very sensitive to dimensional fluctuations. As a synchronous motor, it also suffers from noise and vibration caused by torque ripple. This research analyzes the torque ripple in several different scenarios under the same DPMM electromagnetic design and finds a predictable influence of mechanical tolerances on torque ripple. In order to reduce the torque ripples, this paper proposes a harmonic current injection (HCI) method. A DPMM with a split-tooth structure is simulated and tested in this paper to demonstrate the analysis of torque fluctuations and the effectiveness of HCI.
AB - The Dual permanent magnet machine (DPMM) possesses the characteristics of high torque and low speed which is suitable for direct-drive equipment. Because of the low magnetic reluctance of this motor, the torque is very sensitive to dimensional fluctuations. As a synchronous motor, it also suffers from noise and vibration caused by torque ripple. This research analyzes the torque ripple in several different scenarios under the same DPMM electromagnetic design and finds a predictable influence of mechanical tolerances on torque ripple. In order to reduce the torque ripples, this paper proposes a harmonic current injection (HCI) method. A DPMM with a split-tooth structure is simulated and tested in this paper to demonstrate the analysis of torque fluctuations and the effectiveness of HCI.
KW - cogging torque
KW - dual-PM machine
KW - harmonic current injection
KW - mechanical tolerance
KW - torque ripple
UR - http://www.scopus.com/inward/record.url?scp=85182313110&partnerID=8YFLogxK
U2 - 10.1109/ICEMS59686.2023.10344472
DO - 10.1109/ICEMS59686.2023.10344472
M3 - Conference article published in proceeding or book
AN - SCOPUS:85182313110
T3 - 2023 26th International Conference on Electrical Machines and Systems, ICEMS 2023
SP - 2545
EP - 2552
BT - 2023 26th International Conference on Electrical Machines and Systems, ICEMS 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 26th International Conference on Electrical Machines and Systems, ICEMS 2023
Y2 - 5 November 2023 through 8 November 2023
ER -