Distributed-observer-based fault diagnosis and fault-tolerant control for time-varying discrete interconnected systems

Xi, Xiaoye; Zhao, Jianfei; Liu, Tingzhang; Yan, Limin

doi:10.1007/s12652-018-1130-7

Cited by 10 publications

(5 citation statements)

References 20 publications

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“…Reference 17 investigates fault recoverability conditions and decentralized fault‐tolerant control for a class of interconnected nonlinear systems. Other recent notable references for decentralized fault‐tolerant control can be found in References 18–25.…”

Section: Introductionmentioning

confidence: 99%

Distributed control reconfiguration of nonlinear interconnected systems in the presence of actuator faults

Kazemi

Kharrati

Badamchizadeh

et al. 2022

Intl J Robust & Nonlinear

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This article proposes a new method of distributed fault‐tolerant control for a class of nonlinear interconnected systems with actuator faults. This method is based on fault‐hiding idea as a reconfiguration control scheme and tries to redesign the control signal according to the dynamics of the faulty subsystem. Based on fault‐hiding principle, after diagnosing actuator faults, control signals are modified by a predesigned dynamic block which is implemented in the closed‐loop control structure with the same nominal controller. Subsystems are considered as nonlinear Lipschitz systems which interact with each other through nonlinear interconnection dynamics. Because of interactions, occurring a fault in one subsystem causes instability in the overall large‐scale system. A distributed control scheme based on solving a new linear matrix inequality is presented to obtain the control inputs so that it can recover stability and performance of the overall system. Simulation results illustrate and verify the effectiveness of the proposed control approach.

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Section: Introductionmentioning

confidence: 99%

Distributed control reconfiguration of nonlinear interconnected systems in the presence of actuator faults

Kazemi

Kharrati

Badamchizadeh

et al. 2022

Intl J Robust & Nonlinear

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“…In fact, naturally, the architecture of the underlying subsystem is decentralized or distributed, which means that it is necessary to develop distributed FD and FR frameworks. In other words, local fault diagnosis and reconstruction should be performed [ 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. However, since the interconnected systems are becoming increasingly complex, the problem of system fault reconstruction has also become increasingly difficult, especially problems related to fault propagation, due to the fact that faults occurring in one subsystem influence adjacent subsystems.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, in order to better understand the fault propagation problems, there is research concerning both local and global systems such as in Refs. [ 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 ]. An important method is to propose a local observer for individual subsystems using its own input and output measurements.…”

Section: Introductionmentioning

confidence: 99%

Observer Based Multi-Level Fault Reconstruction for Interconnected Systems

Zhang

Dahhou

et al. 2021

Entropy

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The problem of local fault (unknown input) reconstruction for interconnected systems is addressed in this paper. This contribution consists of a geometric method which solves the fault reconstruction (FR) problem via observer based and a differential algebraic concept. The fault diagnosis (FD) problem is tackled using the concept of the differential transcendence degree of a differential field extension and the algebraic observability. The goal is to examine whether the fault occurring in the low-level subsystem can be reconstructed correctly by the output at the high-level subsystem under given initial states. By introducing the fault as an additional state of the low subsystem, an observer based approached is proposed to estimate this new state. Particularly, the output of the lower subsystem is assumed unknown, and is considered as auxiliary outputs. Then, the auxiliary outputs are estimated by a sliding mode observer which is generated by using global outputs and inverse techniques. After this, the estimated auxiliary outputs are employed as virtual sensors of the system to generate a reduced-order observer, which is caplable of estimating the fault variable asymptotically. Thus, the purpose of multi-level fault reconstruction is achieved. Numerical simulations on an intensified heat exchanger are presented to illustrate the effectiveness of the proposed approach.

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“…Network systems are composed of a group of interconnected nodes under certain topological structures. Due to their potential applications in a wide range of real networks including biological networks, computer networks, power grids and social network physical systems, dynamic analysis of a complex network has become a very active research topic, and considerable efforts have been made on the stability analysis, system synchronization, state estimation, fault detection, pulse control design and pinning control design; see Walsh et al (2002); Reppa et al (2014); Zhang and Wang (2014); Li et al (2014); Yang et al (2015); Liu and Tong (2015); Rodrigues et al (2015); Li et al (2015); Liu and Chen (2015); Zhou (2015); Hu et al (2016); Boem et al (2016); Shu et al (2016); Zhu and Yang (2016); Hou et al (2016); Davoodi et al (2016); Li et al (2017a, 2017b); Shahnazari and Mhaskar (2018); Li et al (2018); Xi et al (2020). For example, Walsh et al (2002) introduce a novel control network protocol, try-once-discard, for multiple-input-multiple-output networked control systems, and provides an analytic proof of global exponential stability for both the new and common protocols.…”

Section: Introductionmentioning

confidence: 99%

Fault reconstruction and fault tolerant control design for a network of dynamical systems

Zhu

Zhang

2021

Transactions of the Institute of Measurement and Control

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This paper investigates the problems of the fault reconstruction and fault compensation controller design for a network of dynamic systems in which subsystems are interconnected through each subsystem’s outputs. First, under some assumptions, we prove that the minimum phase system condition, the observer matching condition and the controllability can be kept for the overall system. Second, an augmented descriptor system is constructed and we further prove that the minimum phase system condition, the observer matching condition are kept, and then a reduced-order observer is designed for the augmented system to obtain the estimates of the overall system states and the sensor faults simultaneously. Third, an interval observer is designed for the measured output, and based on the interval observer, an asymptotical actuator fault reconstruction method is developed. Finally, an observer-based H infinite and fault compensation scheme is designed and the stability of the closed-loop system is analyzed. We point out that the closed-loop system satisfies the so-called separation property. In the end, a simulation example is given to demonstrate the effectiveness of the proposed methods.

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Distributed-observer-based fault diagnosis and fault-tolerant control for time-varying discrete interconnected systems

Cited by 10 publications

References 20 publications

Distributed control reconfiguration of nonlinear interconnected systems in the presence of actuator faults

Distributed control reconfiguration of nonlinear interconnected systems in the presence of actuator faults

Observer Based Multi-Level Fault Reconstruction for Interconnected Systems

Fault reconstruction and fault tolerant control design for a network of dynamical systems

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