| 一类随机大系统的自适应有界镇定 |
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| 引用本文： | 武赛,邓飞其. 一类随机大系统的自适应有界镇定[J]. 华南理工大学学报(自然科学版), 2007, 35(1): 7-12 |
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| 作者姓名： | 武赛 邓飞其 |
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| 作者单位： | 华南理工大学,自动化科学与工程学院,广东,广州,510640;华南理工大学,自动化科学与工程学院,广东,广州,510640 |
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| 基金项目： | 国家自然科学基金资助项目(60374023)，广东省自然科学基金资助项目(011629) |
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| 摘 要： | 研究了一类具有严反馈形式、含有有界不确定参数的非线性随机大系统的镇定问题,在充分考虑各子系统之间互联项影响的基础上,设计了这类组合系统的状态观测器,再运用反步法技术,通过构造四次型随机控制Lyapunov函数,设计出一种自适应输出反馈分散控制器.在此控制器作用下,所考虑的闭环、互联非线性随机大系统实现了概率意义下的有界稳定.仿真结果表明了该控制算法的有效性.
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| 关 键 词： | 非线性随机大系统 自适应控制 分散控制 有界稳定 |
| 文章编号： | 1000-565X（2007）01-0007-06 |
| 修稿时间： | 2005-11-28 |
Bounded Adaptive Stabilization for a Class of Large-Scale Stochastic System |
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| Wu Sai,Deng Fei-qi. Bounded Adaptive Stabilization for a Class of Large-Scale Stochastic System[J]. Journal of South China University of Technology(Natural Science Edition), 2007, 35(1): 7-12 |
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| Authors: | Wu Sai Deng Fei-qi |
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| Affiliation: | School of Automation Science and Engineering, South China Univ. of Tech. , Guangzhou 510640, Guangdong, China |
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| Abstract: | The stabilization problem of a class of large-scale stochastic nonlinear system with bounded uncertainties in strict-feedback form is investigated.By fully considering the effects of interconnections among all subsystems,a state observer for such a kind of combined system is designed.Then,a decentralized adaptive output feedback controller is designed by means of the backstepping approach and by constructing quartic stochastic control Lyapunov functions.So,the closed-loop,interconnected and large-scale stochastic nonlinear system is boundedly stable in probability.Simulated results verify the effectiveness of the proposed control algorithm. |
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| Keywords: | large-scale stochastic nonlinear system adaptive control decentralized control bounded stabilization |
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