基于T-S模糊模型的离散混沌系统变结构控制  

Variable Structure Control of Discrete Chaotic System Based on T-S Fuzzy Models

作　　者：杨志红[1] 常凤云[2] 姚琼荟[2] 

机构地区：[1]通信指挥学院信息作战系,湖北武汉430010 [2]海军工程大学电气与信息学院,湖北武汉430033

出　　处：《控制工程》2007年第2期161-163,204,共4页Control Engineering of China

摘　　要：研究了离散混沌系统模糊变结构控制问题。采用T-S模糊模型描述离散混沌系统,将离散混沌系统模糊化为局部线性模型。依据Lyapunov稳定性定理和线性系统变结构控制趋近律设计方法,设计了一种新型的离散变结构控制器,该控制器不仅能保证局部线性模型渐近稳定,而且能确保模糊动态模型全局渐近稳定。利用Matlab对确定Henon系统和不确定Henon系统进行数值仿真,结果表明所设计的控制器不但有效,而且具备很强的鲁棒性。The problem of fuzzy variable structure control of discrete chaotic system is studied.Discrete chaotic system is described based on T-S fuzzy models,and the system is exchanged into local linear model with fuzzy method.On the basis of Lyapunov stability theorem and approaching law method,a new variable structure controller is designed.The controller insures the stability of global fuzzy model.The controlled certain and uncertain Henon systems are simulated with Matlab,and the numerical results show the validity and robustness of the control scheme.

关 键 词：离散混沌 T-S模糊模型 变结构控制 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]