步进式加热炉电液比例控制系统建模与仿真

作者：朱仁学1,2，袁阳2,3 日期：2008-08-18/span> 浏览：4047 查看PDF文档

步进式加热炉电液比例控制系统建模与仿真

朱仁学1,2，袁阳2,3
（1.杭州万向职业技术学院 应用工程系，浙江 杭州 310023；2.浙江大学 流体传动与控制国家重点实验室，浙江 杭州 310027；
3. 杭州钢铁厂 小型轧钢股份有限公司，浙江 杭州 310022）

摘要：针对步进式加热炉步进梁的升降和平移速度电液比例控制系统，提出了“恒压变量泵＋比例方向阀＋进口压力补偿器”的控制方案和校正控制策略，并通过Matlab仿真技术，对控制系统进行了仿真。研究结果表明，这种电液比例控制方案可以满足步进式加热炉工艺曲线要求。
关键词：步进式加热炉；电液比例控制；压力补偿；仿真
中图分类号：TP271+.31;TH137.7文献标识码：A文章编号：1001-4551(2008)08-0105-03

Modeling and simulation of electro-hydraulic proportional control system with walking-beam furnace
ZHU Ren-xue1,2, YUAN Yang2,3
(1.Department of Applied Engineering, Hangzhou Wanxiang Polytechnic, Hangzhou 310023, China;
2.The State Key Lab of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China;
3.Small-sized Steel Rolling Co.Ltd., Hangzhou Steel and Iron Works, Hangzhou 310022, China)
Abstract: Aiming at the electro-hydraulic proportional speed control system for up-down and translation of the walking-beam furnace, the control method and correction control strategy were presented based on the proposed control planning of “variable displacement pump+proportional direction valve+meter-in pressure compensator”. The control system was simulated based on Matlab. The experimental result shows that the electro-hydraulic proportional control system can meet the controlling requirement of the walking-beam furnace craft curve.
Key words: walking-beam furnace; electro-hydraulic proportional control; pressure compensation; simulation