Open AccessFractional-Order Control of Pneumatic Position Servosystems
Author(s) -
Junyi Cao
Publication year - 2011
Publication title -
mathematical problems in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.262
H-Index - 62
eISSN - 1026-7077
pISSN - 1024-123X
DOI - 10.1155/2011/287565
Subject(s) - control theory (sociology) , position (finance) , controller (irrigation) , pneumatic cylinder , servomechanism , servo , signal (programming language) , control engineering , realization (probability) , servo control , engineering , computer science , cylinder , mathematics , control (management) , mechanical engineering , artificial intelligence , finance , statistics , agronomy , economics , biology , programming language
A fractional-order control strategy for pneumatic position servosystem is presented in this paper. The idea of the fractional calculus application to control theory was introduced in many works, and its advantages were proved. However, the realization of fractional-order controllers for pneumatic position servosystems has not been investigated. Based on the relationship between the pressure in cylinder and the rate of mass flow into the cylinder, the dynamic model of pneumatic position servo system is established. The fractional-order controller for pneumatic position servo and its implementation in industrial computer is designed. The experiments with fractional-order controller are carried out under various conditions, which include sine position signal with different frequency and amplitude, step position signal, and variety inertial load. The results show the effectiveness of the proposed scheme and verify their fine control performance for pneumatic position servo system
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