Distributed fault detection for a class of large-scale systems with multiple incomplete measurements

Zhang, Dan; Wang, Qingguo

doi:10.1016/j.jfranklin.2014.11.006

Cited by 32 publications

(8 citation statements)

References 35 publications

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“…Lemma 1. For the nonlinear system described in (1), the designed fault-tolerant control is shown in (6). When > 0 and > 0, the system is in the stability condition of a sliding mode.…”

Section: A Fault-tolerant Control Lawmentioning

confidence: 99%

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Fault-Tolerant Control of a Nonlinear System Actuator Fault Based on Sliding Mode Control

Lin

Mao

et al. 2017

Journal of Control Science and Engineering

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This paper presents a fault-tolerant control scheme for a class of nonlinear systems with actuator faults and unknown input disturbances. First, the sliding mode control law is designed based on the reaching law method. Then, in view of unpredictable state variables and unknown information in the control law, the original system is transformed into two subsystems through a coordinate transformation. One subsystem only has actuator faults, and the other subsystem has both actuator faults and disturbances. A sliding mode observer is designed for the two subsystems, respectively, and the equivalence principle of the sliding mode variable structure is used to realize the accurate reconstruction of the actuator faults and disturbances. Finally, the observation value and the reconstruction value are used to carry out an online adjustment to the designed sliding mode control law, and fault-tolerant control of the system is realized. The simulation results are presented to demonstrate the approach.

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“…Lemma 1. For the nonlinear system described in (1), the designed fault-tolerant control is shown in (6). When > 0 and > 0, the system is in the stability condition of a sliding mode.…”

Section: A Fault-tolerant Control Lawmentioning

confidence: 99%

“…In recent years, theoretical research in fault-tolerant control has made great progress in the practical applications [1][2][3][4][5][6][7][8]. Fault-tolerant control scheme is widely studied in linear systems.…”

Section: Introductionmentioning

confidence: 99%

Fault-Tolerant Control of a Nonlinear System Actuator Fault Based on Sliding Mode Control

Lin

Mao

et al. 2017

Journal of Control Science and Engineering

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“…Furthermore, suppose that the range over which the channel delay varies is from 1 to 2 s. As in example 1, the channel NMP zero belongs to the interval [0,8]. Under these circumstances, the minimum SNR required for system stabilizability is obtained as Figure 4 depicts the stabilizability threshold (on the vertical axis) with respect to channel NMP zero and transmission delay on the horizontal axes.…”

Section: Examplementioning

confidence: 99%

“…Therefore, researchers recently have shown much attention to deal with the mentioned problems [1][2][3]. There is a rich literature studying stability analysis and stabilization [4][5][6][7], fault detection [8,9], and estimation [10][11][12][13][14] issues in NCSs.…”

Section: Introductionmentioning

confidence: 99%

Stabilization over frequency‐selective channels subject to transmission delay and signal‐to‐noise ratio limitations

Barforooshan

Esfanjani

2016

Complexity

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The stabilizability problem of an unstable non-minimum phase (NMP) plant, controlled over a signal-to-noise ratio (SNR) constrained channel with transmission delay, is investigated in this article. A dynamical output feedback controller is used to stabilize the single-input single-output plant where the control data are exchanged via an NMP bandwidth-limited communication medium. For the first time, a novel description of SNR is used to solve stabilizability problem when the NMP channel imposes a constant delay on transmitted data. It is demonstrated that the presence of time-delay in the channel model as well as its NMP zeros increases the value of SNR needed for stabilizability of the closed-loop system. The main results are illustrated and discussed through numerical examples.

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“…Briefly, the core of the observer-based FD approach is to generate the so-called residual signal to compare with a predefined threshold, and the fault will be detected if the residual signal surpasses the threshold. Works dedicated to analysis and design the observer-based FD approach can be found in the works of Zhang et al, 8 You et al, 9 and Li and Yang. 10 Originated around the same time as FD, fault-tolerant control (FTC) technique has been becoming another important research subject since the 1970s.…”

Section: Introductionmentioning

confidence: 99%

Fault detection and fault‐tolerant control over signal‐to‐noise ratio constrained channels

Guo

Ren

et al. 2018

Intl J Robust & Nonlinear

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This paper investigates the problems of fault detection (FD) and fault-tolerant control for a class of discrete-time systems with signal-to-noise ratio constrained channels. For the purpose of detecting the fault, an observer-based FD scheme is proposed by using a descriptor system approach. In this scheme, an augmented robust FD filter is designed such that the residual generation system is admissible and the estimations of the system state and fault are both obtained; then, a dynamic threshold is constructed based on stochastic characteristics of the channel noise, a constant is introduced to reduce the conservatism of threshold, and false alarm rate of the threshold is given. Subsequently, in order to keep the post-fault system robust asymptotically stable, an output feedback fault-tolerant control strategy is established on the basis of the fault estimation information.Finally, two simulation examples are provided to illustrate the effectiveness and feasibility of the proposed method.

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Distributed fault detection for a class of large-scale systems with multiple incomplete measurements

Cited by 32 publications

References 35 publications

Fault-Tolerant Control of a Nonlinear System Actuator Fault Based on Sliding Mode Control

Fault-Tolerant Control of a Nonlinear System Actuator Fault Based on Sliding Mode Control

Stabilization over frequency‐selective channels subject to transmission delay and signal‐to‐noise ratio limitations

Fault detection and fault‐tolerant control over signal‐to‐noise ratio constrained channels

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