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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2003, Vol. 4 Issue (3): 258-263    DOI: 10.1631/jzus.2003.0258
Electrical Engineering     
An adaptive strategy for controlling chaotic system
CAO Yi-jia, ZHANG Hong-xian
College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; Department of Electrical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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Abstract  This paper presents an adaptive strategy for controlling chaotic systems. By employing the phase space reconstruction technique in nonlinear dynamical systems theory, the proposed strategy transforms the nonlinear system into canonical form, and employs a nonlinear observer to estimate the uncertainties and disturbances of the nonlinear system, and then establishes a state-error-like feedback law. The developed control scheme allows chaos control in spite of modeling errors and parametric variations. The effectiveness of the proposed approach has been demonstrated through its applications to two well-known chaotic systems: Duffing oscillator and Rossler chaos.

Key words： Chaos control      Nonlinear control      Adaptive control     
Received: 06 June 2002     
CLC:  TP273+.2  
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CAO Yi-jia, ZHANG Hong-xian. An adaptive strategy for controlling chaotic system. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2003, 4(3): 258-263.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2003.0258     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2003/V4/I3/258

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