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模糊免疫PID控制器及其在苛化过程中的应用
引用本文:李国栋,王孟效.模糊免疫PID控制器及其在苛化过程中的应用[J].计算机工程,2009,35(1):218-220.
作者姓名:李国栋  王孟效
作者单位:陕西科技大学电气与电子工程学院,西安,710021
摘    要:在实际生产中,苛化工段温度控制系统中常用的常规PID控制器难以获得理想的控制效果。该文设计一种基于免疫反馈机理的PID控制器,采用Centroid反模糊化方法,得到每个模糊控制器的输出,使PID控制器的3个参数随控制器输出的变化而变化。仿真结果证明,该设计的控制效果优于常规PID控制,能适应对象参数的变化,具有良好的控制品质、较强鲁棒性和自适应能力。

关 键 词:模糊控制  免疫PID  苛化过程

Fuzzy Immune-PID Controller and Its Application in Caustic Process
LI Guo-dong,WANG Meng-xiao.Fuzzy Immune-PID Controller and Its Application in Caustic Process[J].Computer Engineering,2009,35(1):218-220.
Authors:LI Guo-dong  WANG Meng-xiao
Institution:(College of Electrical and Electronic Engineering, Shaanxi University of Science &; Technology, Xi’an 710021)
Abstract:It is difficult to obtain the satisfactory controlling performance with the normal PID controller in the temperature controlling system in practice. A PID control algorithm based on the immune feedback principle is presented. The Centroid defuzzification method is adopted in order to get the output of the controller. The 3 coefficients of the PID controller change with the variation of output of the controller. Simulation results show that the Fuzzy-Immune-PID control strategy is adaptive to the object’s parameter variations, and its controlling performance is better than that of the traditional PID control strategy. The system obtains the performance of strong robustness and self-adaptibility.
Keywords:fuzzy control  immune-PID  caustic process  
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