模糊连续变增益H_∞控制器及其在生化过程中的应用  

Fuzzy continuous gain scheduled H_∞ controller for biological and chemical process

作　　者：尹燕燕[1] 刘飞[1] 

机构地区：[1]江南大学自动化研究所,江苏无锡214122

出　　处：《系统工程与电子技术》2009年第4期892-894,F0003,共4页Systems Engineering and Electronics

基　　金：新世纪优秀人才支持计划(NCET-05-0485);江南大学创新团队发展计划资助课题

摘　　要：针对连续搅拌反应釜系统(CSTR)和生物反应等连续系统,采用梯度线性化,设计一种连续变增益控制器,主要思想是先利用梯度线性化方法得到非线性系统的一系列局部线性化模型,结合H∞理论和极点配置得到变增益矩阵,通过拟合得到连续变增益H∞控制器,再引入模糊隶属度函数,使控制器兼顾快速特性和良好的阻尼特性,保证系统始终具有较好的动态性能。仿真结果说明了此控制器设计方法的有效性。Referring to continuous systems such as CSTR and bioreactor, based on gradient linear method, a new approach to the design of a fuzzy continuous gain scheduled H∞ controller, in which a series of linear models are got. Considering H∞ theory and LMI approach, the variable gain matrixes are designed, then the controller is got by fitting. Fuzzy membership function is used to possesses the characteristics of a fast response and a well-damped response. So the system always has a good dynamic performance. The simulation shows the validity of this method.

关 键 词：梯度线性化 生化过程 模糊连续变增益 H∞控制 极点配置 线性矩阵不等式 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]