Zhao S, Tan K K. Adaptive feed forward compensation of force ripples in linear motors[J]. Control Engineering Practice, 2005, 13: 1081-1092.
[4]
Shyu Kuo Kai. A newly robust controller design for the position control of permanent-magnet synchronous motor[J]. IEEE Trans. on Industry Electronics, 2002, 49(3): 558-564.
Jung Insoung, Yoon Sansbaeck, et al. Analysis of forces in a short primary type and a type permanent magnet linear synchronous motor[J]. IEEE Transactions on Energy Conversion, 1999, 14(4): 1265-1269.