Pressure control of hydraulic servo system using proportional control valve

被引：8

作者：

Yang, KU ^{[1
]}

Oh, IH

Lee, IY

机构：

[1] Yosu Natl Univ, Yosu, South Korea

[2] Korea Maritime Univ, Pusan, South Korea

[3] Pukyong Natl Univ, Pusan, South Korea

来源：

KSME INTERNATIONAL JOURNAL | 1999年 / 13卷 / 03期

关键词：

pressure control; two-degree of freedom control; proportional pressure control valve;

D O I：

10.1007/BF02970481

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The purpose of this study is to develope a control scheme for the hydraulic servo system which can rapidly control the pressure in a hydraulic cylinder with very short stroke. Compared with the negligible stroke of the cylinder in the system, the flow gain of the proportional pressure control valve constituting the hydraulic servo system is relatively large and the time delay on the response of the valve is quite long. Therefore, the pressure control system, in this study tends to get unstable during operations. Considering the above mentioned characteristics of the system, a two-degree-of-freedom control scheme, composed of the I-PDD2... feedback compensator and the feedforward controller, is proposed. The reference model scheme is used in deciding the parameters of the controllers. The validity of the proposed control scheme is confirmed through the experiments.

引用

页码：229 / 239

页数：11

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