Continuous-Discrete Time-Observer Design for State and Disturbance Estimation of Electro-Hydraulic Actuator Systems

被引：62

作者：

Ali, Sofiane Ahmed ^{[1
]}

Christen, Arnaud ^{[1
]}

Begg, Steven ^{[2
]}

Langlois, Nicolas ^{[1
]}

机构：

[1] Ecole Super Ingn Genie Elect ESIGELEC, Inst Rech Syst Elect Embarques IRSEEM, Dept Elect Engn, F-76801 Rouen, France

[2] Univ Brighton, Dept Elect Engn, Brighton BN2 4GJ, E Sussex, England

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2016年 / 63卷 / 07期

关键词：

Continuous-discrete time observers; disturbance observer (DOB); electro-hydraulic actuator (EHA); intersample output predictor; sampled data measurements; ADAPTIVE ROBUST-CONTROL; SLIDING MODE CONTROL; BACKSTEPPING CONTROL; FORCE CONTROL; SERVO SYSTEM;

D O I：

10.1109/TIE.2016.2531022

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 continuous-discrete time observer which simultaneously estimates the unmeasurable states and the uncertainties for the electro-hydraulic actuator (EHA) system is presented. The main feature of the proposed observer is the use of an intersample output predictor which allows the users to increase the frequency acquisition of the piston position sensor without affecting the convergence performance. The stability analysis of the proposed observer is proved using Lyapunov function adapted to hybrid systems. To show the efficiency of our proposed observer, numerical simulations and experimental validation involving a control application, which combines the designed observer and a proportional-integral (PI) controller for the purpose of piston position tracking problem, are presented.

引用

页码：4314 / 4324

页数：11

共 38 条

[1] Adaptive Backstepping Control of an Electrohydraulic Actuator [J].