Robust Distributed Fault Estimation for a Network of Dynamical Systems

Zhu, Jun-Wei; Yang, Guang‐Hong

doi:10.1109/tcns.2016.2567223

Cited by 54 publications

(39 citation statements)

References 27 publications

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“…Remark Most of the existing researches on fault estimation problems by means of intermediate estimator approach have not considered the impact of time delays. For example, see the works References 28‐31 and the references cited therein. Since the time delay plays a crucial role in the analysis of either stability or synchronization, it should be taken into account during the fault estimation problems, which is of great importance from the practical perspectives.…”

Section: Resultsmentioning

confidence: 99%

“…It should be pointed out that this method relaxes the observer matching condition which is commonly required for the fault estimation problems and does not need the bounds of the faults and their derivatives. Thus, this particular method has received a great deal of attention from research communities in recent years 29‐31 . However, to the best level of authors' knowledge, this kind of fault estimation problem has not been adequately reported in the analysis of synchronization of CDNs.…”

Section: Introductionmentioning

confidence: 99%

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Fault estimation and synchronization control for complex dynamical networks with time‐varying coupling delay

Sakthivel

Kwon

et al. 2021

Intl J Robust & Nonlinear

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This article is devoted to simultaneously solve the problems of fault estimation and synchronization for a class of delayed coupling complex dynamical networks. First, an intermediate estimator is established for each node with the aid of the relative information from the neighboring nodes. Second, a distributed memory state feedback controller is designed with respect to the estimated state values and fault signals. Third, some error systems are formulated by introducing appropriate linear transformations. Then, a set of delay‐dependent criteria is obtained to ensure that the states of the resulting systems are uniformly bounded and subsequently, the explicit design method of the desired gain matrices is presented. At last, the feasibility of established theoretical results is validated by the support of two numerical examples in which one is an application example based on the aircraft model. Different from the existing fault estimation techniques, the proposed method does not require the observer matching condition and the upper bounds of the fault signals, which reduces the conservatism significantly.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fault estimation and synchronization control for complex dynamical networks with time‐varying coupling delay

Sakthivel

Kwon

et al. 2021

Intl J Robust & Nonlinear

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“…In this study, the state information of all nodes are assumed to be unknown. To achieve synchronization, state and fault signal estimation, the intermediate state estimators of the systems (2), (3) and (4) are taken respectively in the following form [24]:…”

Section: System Description and Preliminariesmentioning

confidence: 99%

Fault Estimations and Non-Fragile Control Design for Fractional-Order Multi-Weighted Complex Dynamical Networks

2020

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This paper deals with the robust fault estimation based synchronization problem for a class of fractional-order multi-weighted complex dynamic networks subject to external disturbances. Specifically, the synchronization problem is converted to an equivalent uniformly ultimately boundedness problem of the corresponding error system by use of spectral decomposition of the Laplacian and proper scalings of the faults. First, by introducing an intermediate estimator technique and using monochromatic Lyapunov function method, the sufficient condition for uniformly ultimately boundedness of the resulting error system via fault estimation based non-fragile controller is presented. Next, by using the linear matrix inequality (LMI) technique and optimization approach, the existence condition in the form of LMIs for designing the fault estimation based robust non-fragile controller is derived. Finally, two numerical examples including financial model are provided to demonstrate the validity and feasibility of the developed theoretical results. INDEX TERMS Fractional-order complex dynamical networks, multi-weights, non-fragile control, fault estimation.

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“…Fault estimation is used to identify the magnitude of a fault online and provide accurate fault information for fault‐tolerant controller design. The research of fault estimation is more challenging than fault detection and isolation, and a large number of results have been achieved in the past few decades [15–22].…”

Section: Introductionmentioning

confidence: 99%

Distributed fault estimation design of interconnected systems with external disturbances

Zhang

Jiang

Shi

et al. 2019

IET Control Theory & Appl

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Robust Distributed Fault Estimation for a Network of Dynamical Systems

Cited by 54 publications

References 27 publications

Fault estimation and synchronization control for complex dynamical networks with time‐varying coupling delay

Fault estimation and synchronization control for complex dynamical networks with time‐varying coupling delay

Fault Estimations and Non-Fragile Control Design for Fractional-Order Multi-Weighted Complex Dynamical Networks

Distributed fault estimation design of interconnected systems with external disturbances

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