Delay-dependent stability analysis by using delay-independent integral evaluation
Delay-dependent stability analysis by using delay-independent integral evaluation
复制标题
使用延迟无关积分评估进行延迟相关稳定性分析
DOI:
10.1016/j.automatica.2016.03.028
复制
发表时间:
2016-08
期刊:
影响因子:
6.4
通讯作者:
Wang Zaihua
中科院分区:
文献类型:
--
作者:
Xu Qi;Stepan Gabor;Wang Zaihua
For the stability analysis of time-delay systems, the available methods usually require the exact evaluation of some quantities. The definite integral stability method, originated from the Argument Principle or the Cauchy Theorem, is effective because it only requires a rough estimation of the testing integral over a finite interval to judge stability. However, no general rule is given in the literature for properly choosing the upper limit of the testing integral. In this paper, two simple algorithms are presented for finding the parameter-dependent critical upper limit and a parameter-independent upper limit without any restriction on the number of time delays. These results improve and complete the definite integral stability method. As illustrated by the numerical examples, the proposed algorithms work effectively and accurately.
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