New fractional-order integral inequalities: Application to fractional-order systems with time-varying delay

New fractional-order integral inequalities: Application to fractional-order systems with time-varying delay
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新的分数阶积分不等式:在时变延迟的分数阶系统中的应用

DOI:
10.1016/j.jfranklin.2021.02.027
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发表时间:
2021-02
期刊:
Journal of the Franklin Institute
影响因子:
--
通讯作者:
Xiaojun Zhang
Xiaojun Zhang
中科院分区:
其他
文献类型:
--
作者:
Taotao Hu;Zheng He;Xiaojun Zhang

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研究了分数阶时变时滞系统的时滞相关稳定性分析问题。首先,通过构造适当的辅助函数,提出了一类新的二次函数分数阶积分不等式,该不等式在分析分数阶时变时滞系统中是有用的.基于这些不等式,设计了Lyapunov-Krasovskii函数来处理时变时滞项,降低了稳定性判据的保守性。此外,时滞相关的准则,获得分数阶系统的时变时滞的渐近稳定性。最后通过两个算例说明了所提出的稳定性判据的有效性和可行性。
In this paper, the problem of delay-dependent stability analysis of fractional-order systems with time-varying delay is investigated. First, a class of novel fractional-order integral inequalities for quadratic functions by constructing appropriate auxiliary functions is proposed, which has been proven to be useful in analyzing fractional-order systems with time-varying delay. Based on these proposed inequalities, the Lyapunov–Krasovskii functions are designed to deal with the time-varying delay terms, reducing the conservatism of the stability criteria. Furthermore, delay-dependent criteria are derived to achieve asymptotic stability of fractional-order systems with time-varying delay. Finally, two examples are provided to illustrate the effectiveness and feasibility of the proposed stability criteria.
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