基于预估模糊自适应PID控制的智能电气阀门定位器的应用研究  

Predictive fuzzy adaptive PID based algorithm for intelligent electro-pneumatic valve positioner

作　　者：刘娜[1] 何永勃[1] 苏兴国[1] 

机构地区：[1]中国民航大学航空自动化学院,天津300300

出　　处：《自动化与仪器仪表》2010年第4期66-67,71,共3页Automation & Instrumentation

摘　　要：智能电气阀门定位器可应用于多种类型的气动执行机构。由于模型的不精确性,传统控制方法难于满足定位要求。介绍一种智能控制算法,结合Smith预估及模糊自适应PID,补偿对象的纯滞后特性,可自适应模型参数的不精确性。该方法具有简单、响应速度快、无超调、鲁棒性高等优点。Intelligent electro-pneumatic valve positioner is suitable for versatile actuators.Because the traditional control methods are not satisfied due to the inaccuracy model,a novel intelligent algorithm is proposed.Combining Smith predictor and fuzzy adaptive PID,the algorithm can compensate the pure time delay,and it is immune to model inaccuracy.The method has the advantages of simple,fast response,no overshoot and high robustness.

关 键 词：智能控制 阀门定位器 SMITH 模糊自适应PID 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]