Disturbance-observer-based robust synchronization control of uncertain chaotic systems

被引：51
作者：
Chen, Mou [1 ]
Wu, Qingxian [1 ]
Jiang, Changsheng [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Automat Engn, Nanjing 210016, Jiangsu, Peoples R China
来源：
NONLINEAR DYNAMICS | 2012年 / 70卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Chaotic systems; Input constraint; Disturbance observer; Robust control; Synchronization control; SLIDING MODE CONTROL; NONLINEAR-SYSTEMS; ADAPTIVE SYNCHRONIZATION; TRACKING CONTROL; NEURAL-CONTROL; FUZZY CONTROL; DESIGN;
D O I：
10.1007/s11071-012-0630-9
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this paper, a robust synchronization control scheme is proposed for chaotic systems in the presence of system uncertainties and unknown external disturbances. For the synchronization error system, the compound disturbance which is estimated using the disturbance observer cannot be directly measured. If the gain matrix is properly chosen, the disturbance observer can approximate the unknown compound disturbance well. And then, the constrained robust synchronization control scheme is presented for uncertain chaotic systems based on the output of disturbance observer. In the design of a robust synchronization control scheme, the effect of unknown control input constraint has been explicitly considered to guarantee the synchronization performance. Numerical simulation results are presented to illustrate the effectiveness of the proposed constrained synchronization control scheme for uncertain chaotic systems.
引用
收藏
页码：2421 / 2432
页数：12
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