Output-feedback sampled-data polynomial controller for nonlinear systems
Output-feedback sampled-data polynomial controller for nonlinear systems
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DOI：
10.1016/j.automatica.2011.08.009
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发表时间：
2011-11
期刊：
影响因子：
--
通讯作者：
H. Lam
中科院分区：
文献类型：
--
作者：
H. Lam
本文讨论了由一个非线性对象和一个输出反馈采样多项式控制器组成的采样控制系统的稳定性分析和控制综合问题。输出反馈采样数据多项式控制器，它可以由一个微控制器或数字计算机实现，提出了稳定的非线性对象。基于李雅普诺夫稳定性理论，以平方和的形式给出了系统的稳定性条件，从而保证了系统的稳定性，并为多项式控制器的设计提供了依据。最后通过仿真实例验证了该控制方法的有效性。
This paper presents the stability analysis and control synthesis for a sampled-data control system which consists of a nonlinear plant and an output-feedback sampled-data polynomial controller connected in a closed loop. The output-feedback sampled-data polynomial controller, which can be implemented by a microcontroller or a digital computer, is proposed to stabilize the nonlinear plant. Based on the Lyapunov stability theory, stability conditions in terms of sum of squares are obtained to guarantee the stability and to aid the design of a polynomial controller. A simulation example is given to demonstrate the effectiveness of the proposed control approach.