| 混沌系统变论域自适应模糊控制 |
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| 引用本文： | 王江,乔国栋,邓斌.混沌系统变论域自适应模糊控制[J].天津大学学报(自然科学与工程技术版),2005,38(10):847-853. |
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| 作者姓名： | 王江 乔国栋 邓斌 |
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| 作者单位： | 天津大学电气与自动化工程学院，天津大学电气与自动化工程学院，天津大学电气与自动化工程学院 天津 300072，天津 300072，天津 300072 |
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| 基金项目： | 国家自然科学基金资助项目(50177023)． |
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| 摘 要： | 针对未知不完全可测的非线性系统,提出基于状态观测器的自适应模糊变论域输出反馈控制,为了抑制外部扰动和参数变化对系统性能的影响,采用监督控制器将系统的状态约束在给定的范围之内,从而提高了控制器的精度和鲁棒性.利用Lyapunov函数证明了观测器-控制器系统的稳定性;在所有状态一致有界的前提下,整个自适应控制算法能够保证闭环系统的稳定性.将该算法应用于Duffing和Chua's混沌系统,仿真结果证明了控制方法的有效性,系统具有快的响应和无稳态误差.
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| 关 键 词： | 变论域 观测器 监督控制 混沌系统 |
| 文章编号： | 0493-2137（2005）10-0847-07 |
| 收稿时间： | 2004-04-21 |
| 修稿时间： | 2004-04-212004-07-13 |
Variable Universe Fuzzy Control for Chaotic System via Output Feedback |
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| WANG Jiang, QIAO Guo-dong, DENG Bin.Variable Universe Fuzzy Control for Chaotic System via Output Feedback[J].Journal of Tianjin University(Science and Technology),2005,38(10):847-853. |
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| Authors: | WANG Jiang QIAO Guo-dong DENG Bin |
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| Institution: | School of Electrical and Automation Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | In order to attenuate the effect of both external disturbance and variable parameters on the tracking error, a supervisory controller was appended to variable universe fuzzy controller in order to force the states to be within the constraint set. Thus, the accuracy and robustness of the system was improved. By Lyapunov method, the observer-controller system was shown to be stable. The overall adaptive control algorithm could guarantee the global stability of the resulting closed-loop system in the sense that all signals involved were uniformly bounded. The proposed control algorithm was applied to the Duffing chaotic system and Chua's chaotic circuit. Simulation results confirm that the control algorithm is feasible for practical application,system has the characteristics of quick response and zero error. |
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| Keywords: | variable universe observer supervisory control chaotic system |
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