Robust non-linear output-feedback control of a magnetic levitation system by K-filter approach

被引：19
|
作者：
Yang, Z. -J. [1 ]
Fukushima, Y. [2 ]
Kanae, S. [3 ]
Wada, K. [2 ]
机构：
[1] Ibaraki Univ, Coll Engn, Dept Intelligent Syst Engn, Hitachi, Ibaraki 3168511, Japan
[2] Kyushu Univ, Dept Elect & Elect Syst Engn, Grad Sch Informat Sci & Elect Engn, Nishi Ku, Fukuoka 8128581, Japan
[3] Kyushu Univ, Grad Sch Informat Sci & Elect Engn, Dept Elect Elect & Comp Engn, Nishi Ku, Fukuoka 8190395, Japan
来源：
IET CONTROL THEORY AND APPLICATIONS | 2009年 / 3卷 / 07期
关键词：
DISTURBANCE-OBSERVER; ADAPTIVE-CONTROL; SLIDING-MODE; BEARING SYSTEMS; MOTION CONTROL; MANIPULATORS; DESIGN;
D O I：
10.1049/iet-cta.2008.0253
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A robust non-linear output-feedback controller by the K-filter approach is proposed for position-tracking problem of a magnetic levitation system, where only the position measurement is available for control. Instead of the popular adaptive control techniques, a disturbance observer (DOB) is merged into the K-filter-based output-feedback controller to compensate the external disturbance and model mismatch, so that a much simpler controller is constructed. Rigorous stability of the non-linear control system is established. Experimental results are included to show the excellent performance of the designed controller.
引用
收藏
页码：852 / 864
页数：13
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