Nonlinear Adaptive Control of Magnetic Levitation System with Uncertain Parameters and Unknown Disturbances

被引：0
|
作者：
Liu, Baobin [1 ]
机构：
[1] Jiangsu Inst Econ & Trade Technol, 104 Guang Hua Rd, Nanjing 210007, Jiangsu, Peoples R China
来源：
PROCEEDINGS OF 2013 CHINESE INTELLIGENT AUTOMATION CONFERENCE: INTELLIGENT AUTOMATION | 2013年 / 254卷
关键词：
Magnetic levitation; Adaptive control; Nonlinear system; Backstepping; DESIGN;
D O I：
10.1007/978-3-642-38524-7_51
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Due to the changes of viscous friction coefficients and the disturbance of control current, the suspended height of magnetic levitation ball is different from its reference location. The nonlinear adaptive backstepping is proposed to deal with this problem, which is the controller design of magnetic levitation system with uncertain parameters and unknown disturbances. The proposed method can estimate viscous friction coefficients online, and guarantee stability of controlled system with complex disturbances rapidly. The simulation results show that the dynamic performance of the magnetic levitation system can be significantly improved by using proposed nonlinear adaptive backstepping method. Furthermore, the global asymptotically stability of the control system and the robustness for complex disturbances can both be guaranteed by simulation results.
引用
收藏
页码：467 / 475
页数：9
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