Observer-Based Integral Sliding Mode Tracking Control for a Pneumatic Cylinder With Varying Loads

被引:30
|
作者
Zhao, Ling [1 ]
Zhang, Bin [1 ]
Yang, Hongjiu [2 ]
Wang, Yingjie [2 ]
机构
[1] Yanshan Univ, Coll Mech Engn, Hebei Prov Key Lab Heavy Machinery Fluid Power Tr, Qinhuangdao 066004, Hebei, Peoples R China
[2] Yanshan Univ, Inst Elect Engn, Qinhuangdao 066004, Hebei, Peoples R China
基金
中国国家自然科学基金;
关键词
Servomotors; Mathematical model; Partial discharges; Observers; Valves; Pistons; Cybernetics; Finite-time; generalized nonlinear extended state observer (GNESO); integral sliding mode (ISM); pneumatic cylinder; varying loads; SERVO SYSTEM; PRESSURE; VEHICLE;
D O I
10.1109/TSMC.2018.2825325
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, a generalized nonlinear extended state observer is applied to an integral sliding mode (ISM) tracking control method for a pneumatic cylinder servo system with varying loads. The observer is established to estimate the total disturbance and its derivative for the system. An ISM controller is designed to ensure control performances of the system. Both finite-time convergence of the observer and finite-time stabilization of the closed-loop system are realized using Lyapunov's stability theory. Lastly, experimental results demonstrate that control precision and response rapidity are improved using the proposed method.
引用
收藏
页码:2650 / 2658
页数:9
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