Fuzzy controller design for synchronous motion in a dual-cylinder electro-hydraulic system

被引：70

作者：

Chen, Cheng-Yi ^{[1
]}

Liu, Li-Qlang ^{[2
]}

Cheng, Chi-Cheng ^{[3
]}

Chiu, George T. -C. ^{[4
]}

机构：

[1] Cheng Shiu Univ, Dept Elect Engn, Kaohsiung 83347, Taiwan

[2] ISP DAS Co Ltd, Kaohsiung Res Ctr, Hsinchu 303, Taiwan

[3] Natl Sun Yat Sen Univ, Dept Mech & Electromech Engn, Kaohsiung 80424, Taiwan

[4] Purdue Univ, Sch Mech Engn, W Lafayette, IN 47907 USA

来源：

CONTROL ENGINEERING PRACTICE | 2008年 / 16卷 / 06期

关键词：

motion synchronization; proportional directional valve; fuzzy controller; hydraulic servo system;

D O I：

10.1016/j.conengprac.2007.08.005

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, an integrated fuzzy controller is proposed to achieve a synchronous positioning objective for a dual-cylinder electro-hydraulic lifting system with unbalanced loadings, system uncertainties, and disturbances. The control system consists of one-fuzzy coordination controller for both cylinders and an individual cylinder controller, comprised of a feedforward controller, and a fuzzy tracking controller, for each of the hydraulic cylinders. In the integrated fuzzy controller design, the fuzzy coordination controller is responsible for dispatching motion synchronization commands to the individual cylinder controllers. Each cylinder controller then adaptively enforces the position tracking to its controlled actuator. The experimental results show that the proposed integrated fuzzy controller design can effectively achieve the objective of position synchronization in the dual-cylinder electro-hydraulic system, with maximum synchronization error within +/- 4 mm. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：658 / 673

页数：16

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