Observer-based adaptive sliding mode control for pneumatic servo system

被引：51

作者：

Liu, Yung-Tien ^{[1
]}

Kung, Tien-Tsai ^{[2
]}

Chang, Kuo-Ming ^{[2
]}

Chen, Sheng-Yuan ^{[1
]}

机构：

[1] Natl Kaohsiung First Univ Sci & Technol, Dept Mech & Automat Engn, Kaohsiung 824, Taiwan

[2] Natl Kaohsiung Univ Appl Sci, Dept Mech Engn, 415 Chien Kung Rd, Kaohsiung 807, Taiwan

来源：

PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY | 2013年 / 37卷 / 03期

关键词：

Pneumatic servo system; Precision positioning; Adaptive sliding mode control; Extended state observer; Dead-zone; POSITION CONTROL; CYLINDER; DEVICE;

D O I：

10.1016/j.precisioneng.2012.12.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, an extended state observer (ESO) being incorporated with the adaptive sliding mode control theory is proposed to deal with a nonlinear pneumatic servo system characterized with input dead-zone, unknown system function, and external disturbance. The ESO is used to estimate system state variables of the unknown nonlinear system; the adaptive law is employed to compensate for dead-zone system behavior. Positioning experiments based on the derived control strategy were performed. As one example of positioning results, the positioning accuracy with sub-micrometers range was verified for both forward and backward actuations with step commands of 3 mm. The control scheme provided in this paper that can significantly improve the positioning performance of a traditional pneumatic servo system is demonstrated. (C) 2013 Elsevier Inc. All rights reserved.

引用

页码：522 / 530

页数：9

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