TY - GEN
T1 - Separation of on-load Thrust Ripple of Moving-Magnet Linear Motor Based on Frozen Permeability
AU - Sun, Qinwei
AU - Wang, Mingyi
AU - Liu, Minghong
AU - Li, Liyi
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - In this paper, a separation method of on-load thrust ripple of moving-magnet linear motor based on frozen permeability method is proposed. The traditional linear motor analysis method divides the thrust ripple into two parts: no-load detent force and electromagnetic force fluctuation. However, when the linear motor is under load, the permeability in the magnetic circuit is changed, that is, the detent force under load is not equal to the no-load detent force. Therefore, based on the motor load condition, this paper separates the thrust ripple of linear motor. Firstly, the on-load detent force is analyzed by frozen permeability method and energy method. Then, the expression of motor electromagnetic force is solved by virtual displacement method, and the expression of electromagnetic force is improved. Finally, the change characteristics of on-load thrust ripple is summarized by comparing the components of no-load thrust ripple.
AB - In this paper, a separation method of on-load thrust ripple of moving-magnet linear motor based on frozen permeability method is proposed. The traditional linear motor analysis method divides the thrust ripple into two parts: no-load detent force and electromagnetic force fluctuation. However, when the linear motor is under load, the permeability in the magnetic circuit is changed, that is, the detent force under load is not equal to the no-load detent force. Therefore, based on the motor load condition, this paper separates the thrust ripple of linear motor. Firstly, the on-load detent force is analyzed by frozen permeability method and energy method. Then, the expression of motor electromagnetic force is solved by virtual displacement method, and the expression of electromagnetic force is improved. Finally, the change characteristics of on-load thrust ripple is summarized by comparing the components of no-load thrust ripple.
KW - PMLSM
KW - detent force
KW - electromagnetic force
KW - frozen permeability
UR - https://www.scopus.com/pages/publications/85199090617
U2 - 10.1109/IPEMC-ECCEAsia60879.2024.10567733
DO - 10.1109/IPEMC-ECCEAsia60879.2024.10567733
M3 - 会议稿件
AN - SCOPUS:85199090617
T3 - 2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
SP - 282
EP - 287
BT - 2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
Y2 - 17 May 2024 through 20 May 2024
ER -