Fuzzy Control with Friction Compensation for a Pneumatic Positioning System

被引:2
|
作者
Chang, Kuo-Ming [1 ]
Liu, Yung-Tien [2 ]
Hsieh, Sheng-Jung [1 ]
机构
[1] Natl Kaohsiung Univ Appl Sci, Dept Mech Engn, 415 Chien Kung Rd, Kaohsiung, Taiwan
[2] Natl Kaohsiung First Univ Sci & Technol, Dept Mech & Automat Engn, 2 Jhuoyue Rd, Kaohsiung, Taiwan
关键词
Fuzzy Control; Friction; Position Control; Pneumatic Positioning System; DEVICE;
D O I
10.5220/0005976004710476
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 fuzzy control with friction compensation is developed to deal with a nonlinear pneumatic positioning system characterized with friction, unknown system model, and external disturbance. In order to enhance the positioning accuracy, a control scheme is designed for compensating the friction effect of the moving stage. Positioning experiments based on the derived control strategy were performed to show and validate the proposed control performance. As two experimental examples of positioning results in a total of 30 experimental trials for the stepwise input positioning controls, the positioning accuracy with less than 30nm was verified for both forward and backward actuations with step commands. Hence, the control scheme provided in this paper that could significantly improve the positioning performance of a traditional pneumatic positioning system is demonstrated.
引用
收藏
页码:471 / 476
页数:6
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