| 一类非线性系统输出反馈的半全局实用镇定 |
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| 引用本文： | 蔡秀珊,韩正之,寇春海.一类非线性系统输出反馈的半全局实用镇定[J].控制理论与应用,2005,22(3):386-390. |
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| 作者姓名： | 蔡秀珊 韩正之 寇春海 |
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| 作者单位： | 浙江师范大学,信息科学与工程学院,浙江,金华,321004;上海交通大学,电子信息学院,上海,200030 |
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| 基金项目： | 福建省教育厅科技项目(JA03163). |
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| 摘 要： | 研究了一类含有未知参数的非线性系统的半全局实用镇定问题,通过系统线性部分和零动态部分的Lyapunov函数构造了整个系统的Lyapunov函数,据此设计了使系统半全局实用稳定的状态反馈和动态输出反馈,且证明了只要未知参数不改变系统的相对阶,那么控制器是鲁棒的.仿真实例说明了所提出方法的有效性.
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| 关 键 词： | 非线性系统 半全局镇定 半全局实用镇定 零动态 输出反馈 |
| 文章编号： | 1000-8152(2005)03-0386-05 |
| 收稿时间： | 5/8/2003 12:00:00 AM |
| 修稿时间： | 2004/6/17 0:00:00 |
Semiglobally practical stabilization of a class of nonlinear systems by output feedback |
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| CAI Xiu-shan,HAN Zheng-zhi,KOU Chun-hai.Semiglobally practical stabilization of a class of nonlinear systems by output feedback[J].Control Theory & Applications,2005,22(3):386-390. |
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| Authors: | CAI Xiu-shan HAN Zheng-zhi KOU Chun-hai |
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| Affiliation: | College of Information Science and Engineering,Zhejiang Normal University,Jinhua Zhejiang 321004,China; School of Electronic and Electric Engineering,Shanghai Jiao Tong University,Shanghai 200030,China |
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| Abstract: | The semiglobally practical stabilization of a class of nonlinear systems with unknown parameters is considered.A Lyapunov function for the overall system is established through a Lyapunov function of the linear part and that of the zero dynamics.A state feedback and a dynamic output feedback are designed respectively to stabilize the system.It also verifies that the controllers are robust as long as the variation of unknown parameters maintains the same relative degree.A simulation (example) shows its effectiveness. |
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| Keywords: | nonlinear systems semiglobal stabilization semiglobally practical stabilization zero dynamics output feedback |
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