基于Fuzzy-Smith补偿控制的煤泥水自动加药系统仿真研究  

Simulation Research of Automatic Dosing System of Slime Water Based on Fuzzy-Smith Compensation Control

作　　者：王光辉[1] 匡亚莉[1] 王传真[2] 申迎松[1] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221008 [2]淮北矿业(集团)有限责任公司,安徽淮北235000

出　　处：《工矿自动化》2012年第9期39-42,共4页Journal Of Mine Automation

基　　金：国家自然科学基金项目(51174202);教育部博士点基金项目(20100095110013)

摘　　要：分析了煤泥水系统的絮凝沉降过程,推导出絮凝剂、凝聚剂加药量与溢流浓度之间的传递函数,计算得两个传递函数的惯性滞后时间与纯滞后时间比值均远大于0.3,说明煤泥水处理过程是一个大时滞性系统;介绍了Fuzzy-Smith补偿控制基本原理,构建了基于Fuzzy-Smith补偿控制的煤泥水自动加药系统的仿真结构。仿真结果表明,Fuzzy-Smith补偿控制策略较传统PID控制策略具有更快的系统响应速度,较好地解决了煤泥水处理过程的大时滞性问题。Transfer functions between dosage of flocculant and coagulant and overflow concentration were separately got through analyzing flocculus settling process of slime water system. The calculated ratios between inertial delay time and pure delay time of the transfer functions were both far greater than 0.3, which indicated that slime water treatment process was a large time-delay system. The basic principle of Fuzzy-Smith compensation control was introduced and simulation structure was built for automatic dosing system of slime water based on Fuzzy-Smith compensation control. The simulation result showed that Fuzzy-Smith compensation control strategy is quicker in responding speed than traditional PID control strategy, which could solve large time-delay question of slime water well.

关 键 词：煤泥水 自动加药 絮凝沉降 絮凝剂 凝聚剂 大时滞性 Fuzzy-Smith补偿控制 

分 类 号：TQ225.142[化学工程—有机化工]