Design of finite-time convergent functional observer for descriptor systems: Application to fault estimation

IF 2.7 4区计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS

Asian Journal of Control Pub Date : 2024-04-23 DOI:10.1002/asjc.3392

Carlos Ríos-Ruiz, Gloria Lilia Osorio Gordillo, Mohamed Darouach, Harouna Souley Ali, Carlos Manuel Astorga-Zaragoza

引用次数: 0

Abstract

In this paper, a finite-time functional observer design for linear time-invariant descriptor systems is presented. A generalized observer based on additional degrees of freedom is developed. This observer can be considered of a general structure since the existing proportional observer (PO) and proportional-integral observer (PIO) constitute its particular cases. The main contribution is to generate a finite-time convergent functional observer for descriptor systems by combining two generalized functional observers. The obtained results are applied to the simultaneous state, sensor, and actuator faults estimation. A numerical example is given to illustrate the approach. The obtained results show that the observer is robust in presence of uncertainties, compared to its particular cases.

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为描述符系统设计有限时间收敛函数观测器：应用于故障估计

本文介绍了线性时不变描述符系统的有限时间功能观测器设计。本文开发了一种基于额外自由度的广义观测器。由于现有的比例观测器（PO）和比例积分观测器（PIO）构成了其特殊情况，因此可以认为该观测器具有一般结构。其主要贡献在于通过结合两个广义函数观测器，为描述子系统生成了一个有限时间收敛函数观测器。所获得的结果被应用于同步状态、传感器和致动器故障估计。给出了一个数值示例来说明该方法。得出的结果表明，与特殊情况相比，该观测器在存在不确定性时是稳健的。

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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来源期刊

Asian Journal of Control 工程技术-自动化与控制系统

CiteScore

4.80

自引率

25.00%

发文量

253

审稿时长

7.2 months

期刊介绍： The Asian Journal of Control, an Asian Control Association (ACA) and Chinese Automatic Control Society (CACS) affiliated journal, is the first international journal originating from the Asia Pacific region. The Asian Journal of Control publishes papers on original theoretical and practical research and developments in the areas of control, involving all facets of control theory and its application. Published six times a year, the Journal aims to be a key platform for control communities throughout the world. The Journal provides a forum where control researchers and practitioners can exchange knowledge and experiences on the latest advances in the control areas, and plays an educational role for students and experienced researchers in other disciplines interested in this continually growing field. The scope of the journal is extensive. Topics include: The theory and design of control systems and components, encompassing: Robust and distributed control using geometric, optimal, stochastic and nonlinear methods Game theory and state estimation Adaptive control, including neural networks, learning, parameter estimation and system fault detection Artificial intelligence, fuzzy and expert systems Hierarchical and man-machine systems All parts of systems engineering which consider the reliability of components and systems Emerging application areas, such as: Robotics Mechatronics Computers for computer-aided design, manufacturing, and control of various industrial processes Space vehicles and aircraft, ships, and traffic Biomedical systems National economies Power systems Agriculture Natural resources.