基于H∞未知输入观测器的奇异分数阶系统故障估计

IF 5.5 2区工程技术 Q1 ENGINEERING, CIVIL

Ocean Engineering Pub Date : 2025-06-04 DOI:10.1016/j.oceaneng.2025.121656

Qing-Hao Zhang, Jun-Guo Lu, Zhen Zhu, Ren-Jie Cui

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引用次数: 0

摘要

研究了奇异分数阶系统的故障估计问题。设计了一个H∞未知输入观测器，同时满足可接受性和性能条件。利用有界实数引理，导出了低保守性观测器增益矩阵的存在条件。给出了阶数为0<；α<；2的系统的全阶观测器和降阶观测器的设计方法。给出了两个数值例子来说明我们的方法在电路系统和电力系统中的应用。与现有方法相比，仿真结果验证了本文方法具有较低的估计误差。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Fault estimation for singular fractional-order systems based on H∞ unknown input observers

This paper investigates the fault estimation problem for singular fractional-order systems. An

H_{\infty}

unknown input observer is designed to meet both admissibility and performance conditions. By using the bounded real lemma, the existence condition of the observer gain matrices with low conservativeness is derived. The methods for designing the full-order and reduced-order observers for the system with order

0 < α < 2

are proposed. Two numerical examples are given to clarify the application of our methods in electrical circuit systems and power systems. Compared to the existing methods, the lower estimation errors of the proposed methods in this paper are verified by the simulation results.

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来源期刊

Ocean Engineering 工程技术-工程：大洋

CiteScore

7.30

自引率

34.00%

发文量

2379

审稿时长

8.1 months

期刊介绍： Ocean Engineering provides a medium for the publication of original research and development work in the field of ocean engineering. Ocean Engineering seeks papers in the following topics.