Sliding mode control for electro-hydraulic proportional directional valve-controlled position tracking system based on an extended state observer

被引：17
|
作者：
Zhuang, Huixuan [1 ,2 ]
Sun, Qinglin [1 ,2 ]
Chen, Zengqiang [1 ,2 ]
机构：
[1] Nankai Univ, Coll Artificial Intelligence, Tianjin 300350, Peoples R China
[2] Nankai Univ, Intelligent Robots Key Lab, Tianjin, Peoples R China
来源：
ASIAN JOURNAL OF CONTROL | 2021年 / 23卷 / 04期
基金：
中国国家自然科学基金;
关键词：
electro-hydraulic servo system; extended state observer; proportional integral derivative; sliding mode control; FINITE-TIME STABILITY; CONTROL STRATEGY; PID CONTROLLER; DESIGN; COMPENSATION;
D O I：
10.1002/asjc.2432
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 method combining the sliding mode control (SMC) and extended state observer (ESO) is proposed for position control of an electro-hydraulic servo system (EHSS), which is nonlinear in mechanical dynamics. Based on the SMC technique, the corresponding sliding mode controller is designed to guarantee the state variables of the closed-loop system to converge to the reference state by applying an ESO to estimate external disturbances and the internal dynamics. Also, simulation results are presented to illustrate the effectiveness of the control strategy; synchronously, SMC can achieve better control performance than proportional integral derivative (PID) method in comparison with the PID control approach.
引用
收藏
页码：1855 / 1869
页数：15
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