摘要
混沌是一种对扰动非常敏感的、高度不稳定的非线性运动,它在很多情况下会降低系统性能,人们提出了许多方法来消除混沌系统中的混沌现象.变结构控制是一种很成熟的非线性控制方法,其特点是对扰动和误差具有很强的鲁棒性.将变结构控制方法应用于混沌控制,在出现混沌运动的Dufing振荡器中,通过施加变结构控制,使Dufing振荡器跟踪其混沌吸引子内的一条不稳定周期1或周期2轨道,从而使系统呈现规则的周期1或周期2运动.与其他混沌控制方法相比,变结构控制方法不仅鲁棒性好。
Chaos is a nonlinear motion which is highly unstable and sensitive to disturbance. It is harmful to systems in many cases. In this paper, a method of chaos controlling based on variable structure control was developed. Using the variable structure control in Duffing's oscillator, the chaotic trajectory was controlled to its inherent unstable period 1 orbit or period 2 orbit. Compared to other chaos controlling methods, the variable structure control has better qualities in robustness and transition.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1999年第5期581-582,共2页
Journal of Shanghai Jiaotong University