Modeling and tracking control of a pneumatic servo positioning system

被引:0
作者
Ramirez, Ivan [1 ]
机构
[1] Univ Quindio, Dept Elect Engn, Div Control & Automat, Armenia, Colombia
来源
2013 II INTERNATIONAL CONGRESS OF ENGINEERING MECHATRONICS AND AUTOMATION (CIIMA) | 2013年
关键词
Pneumatic actuators; nonlinear systems; tracking control; 5/3-way proportional directional control valves; time delay;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Pneumatic actuators are low-cost, safe, clean and exhibit a high power to weight ratio. In this paper a novel control strategy for solving the tracking problem of pneumatic servo positioning systems copes with the nonlinearities of air flow through the 5/3-way proportional directional control valves and the nonlinear friction by considering position, velocity and pressure difference in the chambers of the pneumatic cylinder, as feedback states. The experimental and simulated results from the proposed tracking control strategy, probe that the time delay in the system that depends on the valve's flow rate and the size of the pneumatic cylinder, is low but cannot be eliminated and it is the main source of the obtained tracking error.
引用
收藏
页数:6
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