Mathematical modeling of a two spool flow control servovalve using a pressure control pilot

被引：18

作者：

Anderson, RT ^{[1
]}

Li, PY ^{[1
]}

机构：

[1] Univ Minnesota, Dept Mech Engn, Minneapolis, MN 55455 USA

来源：

JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME | 2002年 / 124卷 / 03期

关键词：

D O I：

10.1115/1.1485287

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A nonlinear dynamic model for an unconventional, commercially available electrohydraulic flow control servovalve is presented. The two stage valve differs from the conventional servovalve design in that: it uses a pressure control pilot stage; the boost stage uses two spools, instead of a single spool, to meter flow into and out of the valve separately; and it does not require a feedback wire and ball. Consequently, the valve is significantly less expensive. The proposed model captures the nonlinear and dynamic effects. The model has been coded in Matlab/Simulink and experimentally validated.

引用

页码：420 / 427

页数：8