Reachable set estimation for linear systems in the presence of both discrete and distributed delays

Reachable set estimation for linear systems in the presence of both discrete and distributed delays
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存在离散和分布式延迟的线性系统的可达集估计

DOI:
10.1049/iet-cta.2010.0487
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发表时间:
2011-10
影响因子:
2.6
通讯作者:
Yijing Wang
Yijing Wang
中科院分区:
计算机科学4区
文献类型:
--
作者:
Zhiqiang Zuo;Daniel W. C. Ho;Yijing Wang

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研究了具有离散时滞和分布时滞的线性系统的可达集估计问题。通过选择适当的Lyapunov-Krasovkii泛函,建立了保证从原点出发的所有状态都以椭球为界的充分条件。寻找最小可能椭球体的问题可以转化为具有矩阵不等式约束的优化问题。此外,由于所得到的结果中涉及的变量较少,从而降低了计算复杂度。这些准则进一步推广到具有多面体不确定性的系统。结果表明,在不存在分布延迟的情况下,所得到的条件比已有的条件保守性更小。
The reachable set estimation for linear systems subject to both discrete and distributed delays is considered in this study. By choosing appropriate Lyapunov-Krasovkii functionals, some sufficient conditions are established to guarantee that all the states starting from the origin are bounded by an ellipsoid. The problem of finding the smallest possible ellipsoid can be transformed into an optimisation problem with matrix inequality constraints. Moreover, the computational complexity is reduced since fewer variables are involved in the obtained results. These criteria are further extended to systems with polytopic uncertainties. It is shown that in the absence of distributed delay, the obtained condition is also less conservative than the existing ones.
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