步进加热炉神经网络电液比例速度控制技术研究  

Study on Intelligence Control Technology about the Walking-beam Reheating Furnace

作　　者：涂福泉[1] 陈奎生[1] 曾良才[1] 

机构地区：[1]武汉科技大学机械自动化学院,湖北武汉430081

出　　处：《机床与液压》2008年第10期40-43,共4页Machine Tool & Hydraulics

基　　金：湖北省自然科学基金项目(№2007ABA271);械传动与制造工程湖北省重点实验室开放基金项目(№200709A)

摘　　要：目前先进的步进加热炉液压传输系统一般采用非对称闭式泵控电液比例控制系统,该控制系统是一种典型的非线性、时变、强干扰系统,采用常规PID控制策略,难以实现某些特殊钢种所要求的精确速度控制。本文作者通过对非对称闭式泵控电液比例控制系统动态特性分析,提出了一种FNNC控制策略,通过试验和现场应用表明,系统的跟踪速度、精度、缓冲特性、循环时间较采用PID控制系统均有所改善或提高,能更好地满足生产要求。The walking-beam reheating furnace for orientation silicon steel casting in Wuhan Iron and Steel Co. Ltd. adopts pump-control and electro-hydraulic proportional control system which is non-symmetry and closed type. And it has the characteristic of typical and essential nonlinear, time-variation and strong interference. The use of conventional PID control, which is not good for tracking performance and adaptability, is difficult to achieve the required speed tracking precision in different steel grade, load and stage at the same time. According to the analysis of the dynamic behavior about the NSPC, a FNNC control strategy was presented. After the experiment and filed application, compared to the previous PID control system, this system was improved in tracking speed, precision, buffer character and circulation time.

关 键 词：步进梁加热炉 NSPC FNNC 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]