| 不确定高次随机非线性系统的自适应控制 |
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| 引用本文： | 魏春玲,王强德,孔宪福.不确定高次随机非线性系统的自适应控制[J].控制理论与应用,2011,28(2):242-246. |
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| 作者姓名： | 魏春玲 王强德 孔宪福 |
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| 作者单位： | 1. 曲阜师范大学,电气信息与自动化学院,山东,日照,276826
2. 曲阜师范大学,杏坛学院,山东,曲阜,273165 |
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| 基金项目： | 国家自然科学基金资助项目(60774010, 61074040); 山东省自然科学基金资助项目(ZR2009GL009); 曲阜师范大学博士科研启动基金资助项目; 曲阜师范大学自然科学基金资助项目(XJ200846). |
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| 摘 要： | 针对一类含有噪声干扰和非线性参数的高次随机非线性系统,研究了依概率全局自适应稳定问题.在噪声的协方差未知的情况下,利用自适应增加幂积分方法和参数分离技术,提出了一种反馈占优设计方法并构造了一个光滑自适应控制器.该控制器能保证闭环系统依概率全局稳定,并且系统的状态几乎必然收敛到零.仿真例子验证了控制方案的有效性.
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| 关 键 词： | 自适应控制 随机非线性系统 增加幂积分 反馈占优设计 |
| 收稿时间： | 2009/9/24 0:00:00 |
| 修稿时间： | 2010/3/28 0:00:00 |
Adaptive control for high-order uncertain stochastic nonlinear systems |
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| WEI Chun-ling,WANG Qiang-de and KONG Xian-fu.Adaptive control for high-order uncertain stochastic nonlinear systems[J].Control Theory & Applications,2011,28(2):242-246. |
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| Authors: | WEI Chun-ling WANG Qiang-de and KONG Xian-fu |
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| Affiliation: | College of Electricity Information and Automation, Qufu Normal University,College of Electricity Information and Automation, Qufu Normal University,Xingtan College, Qufu Normal University |
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| Abstract: | The adaptive global stabilization problem is studied for a class of high-order stochastic nonlinear systems driven by noise of unknown covariance and with nonlinear parameterization. Based on the method of adaptive adding a power integrator and using the technique of parameter separation, a feedback domination design approach is presented and a smooth adaptive controller is constructed which ensures for the closed-loop system the global stability in probability, and the states can be regulated to zero almost surely. A simulation example is given to illustrate the effectiveness of the control scheme. |
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| Keywords: | adaptive control stochastic nonlinear systems adding a power integrator feedback domination design |
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