多变量时滞系统的解耦模糊内模控制  

Decoupling fuzzy internal model control for multivariable systems with multiple time delays

作　　者：陈娟[1] 陈岳峰[1] 潘立登[1] 曹柳林[1] 

机构地区：[1]北京化工大学信息科学与技术学院,北京100029

出　　处：《电机与控制学报》2006年第2期203-207,共5页Electric Machines and Control

基　　金：教育部骨干教师计划资助项目(0201022)

摘　　要：针对时滞多变量耦合系统,研究了带有多时滞的多变量稳定过程的解耦内模控制,根据开环系统的时滞给出了一种时滞系统多变量解耦方法,由于理想的多变量时滞系统内模控制器设计复杂,且根据内模控制理论设计的控制器一般是高阶的,因此采用模糊控制方法设计模糊内模控制器。其宗旨是首先根据过程对象的模型,设计多变量时滞解耦的预补偿器,对其进行对角优势化,利用补偿后的主对角元素作为内模控制的预估模型,设计了多通道模糊内模控制器。仿真结果表明,该方法具有很好的解耦能力,鲁棒性强;方法简单,易于实现,具有工程应用价值。In view of strong multivariable coupling system with multiple times, the deeoupling internal model control（IMC） with stability is investigated for multivariable stable processes with multiple time delays. A kind of decouphng way is characterized in terms of the open-loop system＇ s time delays. Owing to the high complexity of thc theoretical controller, the controller with IMC design is often high-order. A practical fuzzy internal controller is presented. It is based on the model of the plant to design decoupling compensating matrix to obtain a diagonal dominant system. The compensated diagonal elements are used as internal model. The fuzzy controllcr is designed. The simulation result shows the decoupling capability and robustness. It is suitable for engineering application.

关 键 词：多变量时滞系统 解耦 模糊控制 内模控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]