| 对稳定的模糊自适应控制方案的研究与改进 |
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| 引用本文： | 张乃尧,金晖.对稳定的模糊自适应控制方案的研究与改进[J].自动化学报,1997,23(2):160-166. |
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| 作者姓名： | 张乃尧 金晖 |
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| 作者单位： | 1.清华大学自动化系,北京 |
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| 基金项目： | 国家自然科学基金,清华大学科学基金 |
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| 摘 要： | 对美国加州伯克利大学Li-Xin Wang1993年提出的模糊自适应控制方案的稳定性
条件进行了研究,证明了两个新的结论:1)原来的监督控制可以取消;2)渐近稳定的条件可由
w(t)平方可积放宽到w(t)→0.在此基础上,提出并证明了一种模糊自适应控制的新方案,它
能在任何情况下保证闭环渐近稳定,并在一定条件下还能保证参数收敛.对一阶不稳定与二
阶混沌两个控制对象的仿真实验结果表明,新方案的控制效果比Wang的方案有很大提高.
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| 关 键 词： | 模糊自适应控制 稳定性 非线性系统 |
| 收稿时间： | 1995-8-28 |
Study and Modification on Stable Adaptive Fuzzy Control |
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| Zhang Naiyao,Jin Hui.Study and Modification on Stable Adaptive Fuzzy Control[J].Acta Automatica Sinica,1997,23(2):160-166. |
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| Authors: | Zhang Naiyao Jin Hui |
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| Affiliation: | 1.Department of Automation.Tsinhua University,Beijing |
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| Abstract: | This paper analyzes the stability of an adaptive fuzzy control scheme which was
presented by Li-Xin Wang in 1993,and proves two new results. First, the supervisory control
is unnecessary in the sense of stability; second, the asymptotical converging condition of tracking
error can be weakened to w(t)→0. Furthermore, a new adaptive fuzzy control scheme is
proposed, which not only can make the closed-loop system always asymptotically stable, but
also can make the parameter vector 0 converge to the optimum value under certain conditions.
Simulation results for an unstable nonlinear system and a chaotic plant have demonstrated
that the new adaptive fuzzy control scheme performes much superior to Wang's scheme. |
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| Keywords: | Adaptive fuzzy control stability nonlinear systems |
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