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arXiv 2005.05822eess.SYcs.SY
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离散LPV切换系统的稳定性分析

Stability analysis of discrete-time LPV switched systems

Márcio J. Lacerda, Cristiano M. Agulhari

摘要:

研究了离散切换系统在自治切换下的稳定性问题。切换系统的每一个模态都被建模为一个线性参数变化(LPV)系统,时变参数可以任意快速变化,并以多面体形式表示。利用李雅普诺夫理论得到了新的参数依赖线性矩阵不等式形式的条件。所构造的李雅普诺夫函数利用了在其构造中使用具有移位状态的增广状态向量的优点。从这个意义上讲,本文所采用的李雅普诺夫函数可以看作是离散时间LPV切换的李雅普诺夫函数。数值实验说明了该技术在提供稳定性证书的有效性。

英文摘要:

This paper addresses the stability problem for discrete-time switched systems under autonomous switching. Each mode of the switched system is modeled as a Linear Parameter Varying (LPV) system, the time-varying parameters can vary arbitrarily fast and are represented in a polytopic form. The Lyapunov theory is employed to get new conditions in the form of parameter-dependent LMIs. The constructed Lyapunov function takes advantage of using an augmented state vector with shifted states in its construction. In this sense, the Lyapunov function employed in this paper can be viewed as a discrete-time LPV switched Lyapunov function. Numerical experiments illustrate the efficacy of the technique in providing stability certificates.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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