Title :
The Observation of Wavelet Theory Used to Restrain Thrust Ripple in Linear Servo System
Author :
Yang Xia ; Li Qiang ; Qingding, Guo ; Boshu, Zhang
Author_Institution :
Electr. Eng. Coll., Shenyang Univ. of Technol.
Abstract :
We employ the special function of wavelet transform that can extract the characteristics of singular signals, as to the thrust fluctuation in the direct drive linear servo system, to process wavelet analysis and research on the thrust fluctuation in permanent-magnet synchronous linear motor servo system, and it finally proves that we can observe the velocity variation of a machine tool worktable by analyzing wavelet transformed thrust of a permanent-magnet linear synchronous motor, so as to provide relatively more accurate state information for control system
Keywords :
linear motors; permanent magnet motors; servomechanisms; synchronous motors; wavelet transforms; direct drive linear servo system; machine tool worktable; permanent-magnet synchronous linear motor; singular signal; thrust fluctuation; thrust ripple; wavelet theory; wavelet transform; Fluctuations; Information analysis; Machine tools; Servomechanisms; Servomotors; Signal analysis; Signal processing; Synchronous motors; Wavelet analysis; Wavelet transforms;
Conference_Titel :
Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on
Conference_Location :
Nanjing
Print_ISBN :
7-5062-7407-8
DOI :
10.1109/ICEMS.2005.202827
