| 基于观测器的直接自适应模糊控制 |
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| 引用本文： | 毛玉青,张天平.基于观测器的直接自适应模糊控制[J].模糊系统与数学,2007,21(3):118-126. |
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| 作者姓名： | 毛玉青 张天平 |
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| 作者单位： | 扬州大学,信息工程学院计算机系,江苏,扬州,225009 |
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| 基金项目： | 国家自然科学基金
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江苏省教育厅计划项目
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扬州大学校科研和教改项目 |
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| 摘 要： | 针对一类不确定非线性系统,利用H∞控制技术和T-S模糊系统,提出了一种基于观测器的直接自适应模糊控制方法。该方法不需要系统的状态变量完全可测。通过引入最优逼近误差补偿项,取消了最优逼近误差平方可积的假设条件。基于Lyapunov稳定理论,证明了闭环自适应模糊系统是半全局一致终结有界的,且跟踪误差渐近收敛到零。仿真结果表明所提设计方法的有效性。
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| 关 键 词： | 模糊控制 非线性系统 自适应控制 观测器 稳定性 |
| 文章编号： | 1001-7402（2007）03-0118-09 |
| 收稿时间： | 2005-12-30 |
| 修稿时间： | 2005-12-30 |
Observer-based Direct Adaptive Fuzzy Control |
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| MAO Yu-qing,ZHANG Tian-ping.Observer-based Direct Adaptive Fuzzy Control[J].Fuzzy Systems and Mathematics,2007,21(3):118-126. |
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| Authors: | MAO Yu-qing ZHANG Tian-ping |
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| Institution: | College of Information Engineering,Yangzhou University,Yangzhou 225009 ,China |
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| Abstract: | In this paper,the observer-based direct adaptive fuzzy control is developed by using control technique and TS fuzzy systems for a class of uncertain nonlinear systems.The proposed approaches do not need to be available for the state variables.By introducing the adaptive compensation term of the optimal approximation error,the square integrable condition of the approximation error is avoided.Based on Lyapunov stability theorem,the closed-loop adaptive fuzzy control system is proved to be semi-globally uniformly ultimately bounded,with the observing error of the tracking error converging to zero asymptotically.The simulation results are performed to demonstrate the effectiveness of the proposed method. |
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| Keywords: | Fuzzy Control Nonlinear Systems Adaptive Control Observer Stability |
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