Robust stability and stabilization of fractional-order linear systems with polytopic uncertainties

Robust stability and stabilization of fractional-order linear systems with polytopic uncertainties
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具有多面不确定性的分数阶线性系统的鲁棒稳定性和稳定性

DOI:
10.1016/j.amc.2014.12.103
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发表时间:
2015-04
影响因子:
4
通讯作者:
Yin Lisheng
Yin Lisheng
中科院分区:
数学2区
文献类型:
--
作者:
Chen Liping;Wu Ranchao;He Yigang;Yin Lisheng

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研究了α:0< α< 1和1阶α< 2的分数阶不确定线性系统的鲁棒稳定性和镇定问题。针对分数阶线性系统,提出了一种新的多面体型不确定状态空间模型。分数阶模型中的不确定性以矩阵的多面体形式出现。给出了此类分数阶不确定线性系统鲁棒渐近稳定和镇定的充分判据。所有结果都是以线性矩阵不等式的形式给出的。数值算例验证了所得结果的有效性和可行性。
Robust stability and stabilization of fractional-order uncertain linear systems with order α: 0< α< 1 and 1⩽ α< 2 are considered in the paper. A new polytopic type uncertain state-space model for fractional-order linear systems is addressed, which allows second-order uncertain parameters. The uncertainty in the fractional-order model appears in terms of a polytope of matrices. Some sufficient criteria for the robust asymptotical stable and stabilization for such fractional-order uncertain linear systems are derived. All the results are obtained in terms of linear matrix inequalities (LMIs). Numerical examples are presented to demonstrate the validity and feasibility of the obtained results.
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