一类非线性系统的模糊自适应控制  

Fuzzy Adaptive Control for a Class of Nonlinear Systems

作　　者：曲子芳[1] 

机构地区：[1]山东工商学院数学与信息科学学院,山东烟台264005

出　　处：《应用科学学报》2007年第2期207-209,共3页Journal of Applied Sciences

基　　金：江苏省教育厅自然基金项目(01KJB180003)

摘　　要：针对一类非线性系统,把模糊T-S模型和自适应模糊逻辑系统这两种模糊逻辑方式结合起来,提出了一种自适应控制方案.首先,采用模糊T-S模型来对非线性系统建模,由线性矩阵不等式得到模糊模型的控制律.其次,构建了自适应模糊逻辑系统,应用自适应模糊逻辑系统补偿器来消去建模误差.证明了闭环系统满足期望的H∞性能,仿真结果表明了该方案的可行性.Combining both kinds of fuzzy logic forms including fuzzy T-S model and adaptive fuzzy logic systems, this paper presents an adaptive control scheme for a class of nonlinear systems. The fuzzy T-S model is used to approximate the nonlinear systems, and the fuzzy control law of the fuzzy model is derived from the linear matrix inequality. The adaptive fuzzy logic systems are then constructed, and the modeling errors eliminated with a compensator based on the adaptive fuzzy logic systems. It is proved that the closed loop system satisfies the anticipated H∞ performance. Simulation results demonstrate that the control scheme is effective.

关 键 词：模糊T-S模型 自适应模糊逻辑系统 非线性系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]