Force ripple compensation for permanent magnet linear servo system

被引：0
|
作者：
Lu, Shaowu [1 ]
Tang, Xiaoqi [2 ]
Zhou, Fengxing [1 ]
Xie, Chuanning [2 ]
机构：
[1] Eng. Res. Center for Metallurgical Automation and Detecting Techn. of Min. of Educ., Wuhan University of Science and Technology, Wuhan 430081, China
[2] National NC System Engineering Research Center, Huazhong University of Science and Technology, Wuhan 430074, China
来源：
Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2014年 / 48卷 / 02期
关键词：
Aiming at the effect of force ripple on permanent magnet synchronous linear servo system; a control strategy; position adaptive compensation; is proposed. To simplify the mathematical model of the force ripple; the characteristic frequency can be firstly obtained off-line with fast Fourier transform (FFT) analysis. The model parameters of the force ripple can be identified on-line with recursive least squares algorithm. Combining with the characteristic frequency and the model parameters; the precise estimation of the force ripple is realized. The estimation model of the force ripple is directly applied to the real-time compensation for permanent magnet synchronous linear servo system. The experiments for verifying the above control strategy show that the maximum fluctuation error of position tracking is reduced from 50 μm to less than 20 μm; and the position control performance is improved obviously;
D O I：
10.7652/xjtuxb201402018
中图分类号：
学科分类号：
摘要：
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页码：106 / 110
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