Analysis of a nonlinear magnetic levitation system vibrations controlled by a time-delayed proportional-derivative controller

被引:0
作者
M. Eissa
A. Kandil
W. A. El-Ganaini
M. Kamel
机构
[1] Menoufia University,Department of Physics and Engineering Mathematics, Faculty of Electronic Engineering
来源
Nonlinear Dynamics | 2015年 / 79卷
关键词
Multiple scales perturbation technique; Second-order approximation; Active control; Time delay; Controller effectiveness;
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学科分类号
摘要
A time-delayed proportional-derivative controller is proposed in this paper to reduce the horizontal vibration of a magnetically levitated system having quadratic and cubic nonlinearities to primary and parametric excitations. Applying multiple scales perturbation technique, a second-order approximate solution is sought to analyze the nonlinear behavior of the system. The effects of the time delay are studied to indicate the stable range of time delays for the best performance. The results are compared with the numerical simulations, and this shows a good verification for the approximate solution and for the control algorithm used in this paper. A comparison with previously published work is included at the end.
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页码:1217 / 1233
页数:16
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