基于分离方法的加热炉模糊专家控制策略  

Separation-based Fuzzy Expert Control Strategy for Reheating Furnace

作　　者：罗麦丰[1,2] 吴敏[2] 曹卫华[2] 

机构地区：[1]株洲职业技术学院,湖南株洲412000 [2]中南大学信息科学与工程学院,湖南长沙410083

出　　处：《计算机测量与控制》2009年第1期102-104,共3页Computer Measurement &Control

基　　金：国家杰出青年科学基金项目(60425310);国家863计划课题(2006AA04Z172)

摘　　要：对某轧钢加热炉燃烧过程控制中存在的问题,提出了一种基于分离方法的模糊专家控制策略;根据炉温偏差和偏差变化率获得燃气流量的设定值,在温度偏差较小时使用模糊控制,保证较好的控制精度,在温度偏差较大时采用专家控制,保证快速的升温和降温效果,同时按照生产率模型调节空气流量,克服了传统控制策略中无法解决的燃气热值波动时空气燃料比难以自动修正的缺陷;实际应用表明,文章提出的控制策略获得了较好的控制效果。Aimed at the existing problem in the steel rolling reheating furnace combustion process control, a Separation--based fuzzy ex- pert control strategy for reheating furnace is presented. According to the error of the reheating furnace temperature and its variety rate ac- quire the enactment value of the gas flow rate. When the error of the temperature is smaller, the fuzzy control is applied to ensure higher control precision. When the temperature deviation appears greatly, the expert control is employed to realize quick increase or decrease of the temperature. At the same time, according to productivity model adjust air current. The disadvantage that the air/fuel ratio can not auto- turn along with fuel caloric capacity change of traditional control strategy is overcome. The actual application shows, this control strategy has acquired better control result.

关 键 词：加热炉 分离控制 模糊控制 专家控制 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]