Design of Second-order Sliding Mode Controller for Electromagnetic Levitation Grip used in CNC

被引：0
|
作者：
Liu Chunfang [1 ]
Zhang Jian [1 ]
机构：
[1] Shenyang Univ Technol, Sch Elect Engn, Shenyang 110870, Peoples R China
来源：
PROCEEDINGS OF THE 2012 24TH CHINESE CONTROL AND DECISION CONFERENCE (CCDC) | 2012年
关键词：
Electromagnetic Levitation system; chattering; second-order sliding mode; super-twisting algorithm; SYSTEM;
D O I：
暂无
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 novel second-order sliding model controller aiming at the inherent chattering of classical sliding mode control for high-precision air gap control of Electromagnetic Levitation Grip used in CNC(Computerized Numerical Control) was proposed, and the control strategies based on super-twisting algorithm was designed. Electromagnetic Levitation Grip is a very complex system with real parameter uncertainties and external disturbances in the process of air gap control. This method can eliminate the chattering which may excite high frequency chattering, keep the robustness of system, and effectively improve the dynamic response of system. Simulation results demonstrate that the design of Second-order sliding mode controller can achieve the better stability of suspension, strong immunity and high stiffness.
引用
收藏
页码：3282 / 3285
页数：4
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