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基于状态观测器的输入受限不确定系统的滑模控制
王瑞芬1, 刘建平2, 牛玉刚1
(1.华东理工大学信息科学与工程学院;2.河北石家庄职工大学)
State- observer-based sliding mode control for uncertain systems subject to input constraint
Wang Ruifen1, Liu Jianping2, Niu Yugang1
(1.School of information Science and Technology, ECUST;2.Shijiazhuang Staff and Workers University, Hebei Province)
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投稿时间:2010-12-15    修订日期:2011-02-21
中文摘要: 本文研究控制输入受限情况下不确定系统的滑模控制问题, 其中,系统不确定性同时存在于状态矩阵和控制增益矩阵中。首先利用状态观测器估计不可测状态,然后,在状态估计空间一种积分型切换面,最后,设计一个基于状态估计的滑模控制律可以保证系统状态轨迹在有限时间内到达指定的切换面,同时利用等价控制律方法给出了滑模动态渐近稳定的充分条件。数值仿真例子验证了本文算法的有效性。
Abstract:The sliding mode control for uncertain time-delay systems subject to input constraint is considered. There exist uncertainties in both state matrix and input matrix. Moreover, it is assumed that the system states are unmeasured. An integral sliding surface is constructed in the space of state estimation. And then, a sliding mode controller based on state observer is designed such that the state trajectories can be driven onto the specified sliding surface in finite time despite the parameter uncertainties and input constraint. By means of equivalent control law, a sufficient condition is given to guarantee the asymptotic stability of the sliding motion. Finally, an example is provided to illustrate the effectiveness of the proposed method.
文章编号:20101215001     中图分类号:    文献标志码:
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
引用本文:
王瑞芬,刘建平,牛玉刚.基于状态观测器的输入受限不确定系统的滑模控制[J].华东理工大学学报(自然科学版),DOI:.

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