基于变论域模糊PID的汽提塔温度控制方法  

Stripper Temperature Control Method Based on Variable Universe Fuzzy-PID

作　　者：高淑芝[1] 高宪文[1] 朱志承[1] 

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2010年第10期1369-1372,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(60334010)

摘　　要：针对汽提塔生产过程具有非线性、强耦合、大时滞及温度难以精确控制的问题,设计了基于变论域模糊PID的汽提塔温度控制系统.选取了基于模糊规则的伸缩因子,将变论域思想和模糊PID相结合,形成变论域模糊PID控制系统结构.分别对常规PID算法、模糊PID算法及变论域模糊PID算法的汽提塔温度控制系统的仿真曲线进行对比.仿真结果表明:变论域模糊PID控制算法有更快的响应速度、更小的超调量和更好的跟踪性能.The stripping process in a stripper is characterized by high nonlinearity,large time delay,strong coupling and that the temperature is difficult to control accurately.A stripper temperature control system based on the variable universe fuzzy-PID was therefore designed.With the scale factor chosen according to fuzzy rules and the concept of variable universe combined with fuzzy-PID,a variable universe fuzzy-PID control system was formed.Then,the three simulation curves of conventional PID algorithm,fuzzy-PID algorithm and variable universe fuzzy-PID algorithm of the stripper temperature control system were compared with each other,and the results showed that the variable universe fuzzy-PID control algorithm has a shorter response time,smaller overshoot and better tracking performance.

关 键 词：汽提塔 变论域 伸缩因子 模糊PID 仿真 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]