液位控制的模糊内模PID控制器设计  

Design of Fuzzy Internal Model PID Controller for Level Process

作　　者：马永刚[1,2] 张洪青[1] 张红莲[2] 

机构地区：[1]华北电力大学经济与管理学院,北京102206 [2]山西省电力公司运城供电公司,山西运城044000

出　　处：《自动化技术与应用》2013年第6期7-10,共4页Techniques of Automation and Applications

摘　　要：本文介绍了液位过程模糊内模PID控制器的设计。利用机理分析和实验辨识相结合的方法建立了被控过程的数学模型,并依据内模控制原理设计了一种PID控制器,该控制器结构简单,只有一个可调参数。为了克服了内模控制器参数整定要在系统标称性能和鲁棒性之间进行折衷选择的局限性,利用模糊逻辑实现了控制器参数的在线自动整定。实验结果表明,模糊内模PID控制器能有效地改善系统的性能。A novel method of combining the internal model control PID （IMC-PID） and fuzzy systems theory is proposed in thispaper to design a controller for level process. The model of controlled progress is got by mechanism analysis andexperimental identification method. Then a PID controller is designed based on the principle of IMC. The controller issimple and has only-one adjustable parameter. In order to avoid the limitation of the tradeoff between robustness anddynamic property when adjusting the controller parameter, the parameter can be regulated online by means of the fuzzylogic method. The experimental results show that the proposed method can achieve a better system performance.

关 键 词：液位过程 内模控制 模糊控制 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]