基于模糊控制的不确定混沌系统终端滑模同步  

Sliding mode control for synchronization of uncertain chaotic systems based on fuzzy control

作　　者：张袅娜[1,2] 张德江[1] 冯勇[2] 

机构地区：[1]长春工业大学自动化系,长春130012 [2]哈尔滨工业大学电气学院,哈尔滨150001

出　　处：《吉林大学学报（工学版）》2009年第4期1025-1029,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(60474016)

摘　　要：针对非匹配不确定混沌系统,提出一种直接自适应模糊滑模同步方法。通过设计滑模切换面,并将其作为模糊控制系统的唯一输入,模糊控制器的参数依滑模趋近条件在线确定,使得同步跟踪误差渐进到零点。本文方法简化了常规模糊控制结构的复杂性,削弱了滑模控制的抖振程度,并且同步时间较短,对参数不确定性及外干扰具有较好的鲁棒性。最后通过仿真实验证明了本文方法的有效性。A sliding mode synchronization control method with direct self-adaptive fuzzy control for the chaotic systems with unmatched uncertainties was proposed. A switching surface of the sliding mode was designed, which is taken as the only input to the fuzzy control system. The weights of fuzzy controller were on-line trained based on the approaching condition of the switching surface. The synchronization error was guaranteed to reach zero asymptotically. The proposed control method not only simplifies the structural complexity of conventional fuzzy controller but also reduces the chatter insliding mode control. The synchronization control is robust to the systems with unmatched uncertainties. The proposed control method is validated by simulation experiments.

关 键 词：自动控制技术 滑模 模糊控制 混沌同步 不确定混沌系统 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]