具有扇区非线性和死区的混沌系统的跟踪控制  

Tracking Control of Chaotic Systems with Sector Nonlinear Inputs Containing Dead-zones

作　　者：阿布都热合曼.卡的尔[1,2] 王兴元 赵玉章[2] 

机构地区：[1]大连理工大学电子信息与电气工程学院,辽宁大连116024 [2]新疆财经大学计算机科学与工程学院,新疆乌鲁木齐830012

出　　处：《计算机仿真》2012年第1期114-118,共5页Computer Simulation

基　　金：自然科学基金(60573172;60973152);辽宁省自然科学基金(20082165);高等学校博士点专项科研基金

摘　　要：研究控制系统优化问题,由于系统具有扇区非线性和死区的混沌系统的跟踪控制,针对系统的稳定性和跟踪响应特性优化问题,首先通过滑模控制的方法,设计了一个时变滑模控制器并提出了控制规律。利用李雅普诺夫稳定性理论,证明了控制器能够有效的实现Duffing混沌系统的状态跟踪给定的充分光滑信号,Duffing混沌系统在时变滑模控制器下不受输入非线性、死区以及外部噪声等因素的影响。实验结果证明在死区原点对称和死区原点非对称情况下,控制器跟踪的有效性能满足系统的要求,为系统设计提供了支持。This paper investigated tracking control of chaos system with sector nonlinear inputs containing deadzones. First, through the sliding mode control method, a controller was designed using time-varying sliding mode, and the control law was proposed. Second, the Lyapunov stability theory was used to show that the controller can effectively achieve that the Duffing chaotic system tracked the given smooth signal, With the time-varying sliding mode controller, Duffing chaotic system was not affected by input nonlinearity, dead-zone, and external noise factors. Finally, simulation experiments prove that under the cases of symmetric origin and asymmetric origin of the dead zone, the effectiveness of the controller can meet the demands of the system.

关 键 词：混沌控制 时变滑模 扇区非线性 死区 跟踪 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] O415[自动化与计算机技术—控制科学与工程]