基于组合灰色预测模型的焦炉火道温度模糊专家控制  

Fuzzy-expert control based on combination grey prediction model for flue temperature in coke oven

作　　者：王伟[1] 吴敏[1] 曹卫华[1] 雷琪[1] 

机构地区：[1]中南大学信息科学与工程学院,长沙410083

出　　处：《控制与决策》2010年第2期185-190,共6页Control and Decision

基　　金：国家863计划重点项目(2008AA04290);国家杰出青年科学基金项目(60425310)

摘　　要：针对具有强非线性、大时滞、多扰动特点的焦炉火道温度控制问题,提出一种基于组合灰色预测模型的改进模糊专家控制方法.采用基于黄金分割优选法寻优的解析式类型三维模糊控制器,同时并联专家规则补偿模块,对模糊控制器输出进行补偿.利用组合灰色预测方法获得未来时刻的火道温度,根据预测值采取相应的控制策略.实验运行结果表明,该方法具有较好的控制品质,有效地削弱了大时滞的影响,为解决焦炉火道温度控制问题提供了新思路.A modified fuzzy-expert control algorithm based on combination grey prediction model is proposed to solve the control problems of the flue temperature in coke oven,which usually has the property of high nonlinearity,large time-delay and multiple disturbance. Based on the analytic expression optimized by using golden section optimization algorithm,a three-dimensional fuzzy controller is designed and its result is compensated by using expert rules compensation module. Meanwhile,in order to make future control strategies,combination grey prediction model is applied to predict the flue temperature. Verification results show that the algorithm has good control quality and weakens the influence of time delay. This work may give a new method for solving the control problems in the coke oven flue temperature system.

关 键 词：组合灰色预测模型 三维模糊控制器 专家规则补偿模块 黄金分割优选法 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]