TY - GEN
T1 - A simple force ripple compensation method for linear motor servo system
AU - Lin, Jiachun
AU - Li, Wei
AU - Zhao, Tong
AU - Zhou, Tianfeng
AU - Wang, Xiankui
AU - Liu, Chengying
PY - 2006
Y1 - 2006
N2 - Force ripple in Permanent Magnet Synchronous Linear Motor (PMLSM) is an important factor which prevents it from acquiring high positioning accuracy. In this paper, the main aspects of the force ripple in linear motor are analyzed, which include detent force, ripple force and friction. As force ripple is a function of the mover position with respect to the stator, and the position has direct relation with the electrical angle, a simple method to establish its look-up-table which using the electrical angel as the index is proposed and then it is compensated based on the table. Finally, experimental results in velocity loop which using FID and sliding mode controller are presented to verify the feasibility of the approach, and the conclusion that force ripple compensation is an effective way to improve the performance of the linear motor servo system is drawn.
AB - Force ripple in Permanent Magnet Synchronous Linear Motor (PMLSM) is an important factor which prevents it from acquiring high positioning accuracy. In this paper, the main aspects of the force ripple in linear motor are analyzed, which include detent force, ripple force and friction. As force ripple is a function of the mover position with respect to the stator, and the position has direct relation with the electrical angle, a simple method to establish its look-up-table which using the electrical angel as the index is proposed and then it is compensated based on the table. Finally, experimental results in velocity loop which using FID and sliding mode controller are presented to verify the feasibility of the approach, and the conclusion that force ripple compensation is an effective way to improve the performance of the linear motor servo system is drawn.
KW - Force ripple
KW - Linear motor
KW - Look-up-table
KW - PID
KW - Sliding mode control
UR - http://www.scopus.com/inward/record.url?scp=34047222784&partnerID=8YFLogxK
U2 - 10.1109/WCICA.2006.1714289
DO - 10.1109/WCICA.2006.1714289
M3 - Conference contribution
AN - SCOPUS:34047222784
SN - 1424403324
SN - 9781424403325
T3 - Proceedings of the World Congress on Intelligent Control and Automation (WCICA)
SP - 6269
EP - 6273
BT - Proceedings of the World Congress on Intelligent Control and Automation (WCICA)
T2 - 6th World Congress on Intelligent Control and Automation, WCICA 2006
Y2 - 21 June 2006 through 23 June 2006
ER -