Fault Tolerant Control for Networked Control Systems with Access Constraints

Zhao, Mingyue; LIU, He-Ping; LI, Zhi-Jun; Sun, Dehui; LIU, Ke-Ping

doi:10.3724/sp.j.1004.2012.01119

Cited by 5 publications

(5 citation statements)

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“…Proof: Choose the following Lyapunov function (23) and P, R 2 are symmetric positive definite matrices with appropriate dimensions. Then, by following similar lines as in the proof of Theorem 1, we obtain Corollary 1.…”

Section: From the Schur Complement (20) Is Equivalent To (See Equatimentioning

confidence: 99%

“…Both a static scheduling method and periodic communication sequence are applied to allocate network resource and schedule the access to the network. However, network-induced delay in the process of network transmission is not considered in [21][22][23]. Based on the theory of stochastic systems, dynamic fault matrix with different failure characteristics to describe the sensors or actuators failure of NCSs is used in [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

“…Observer-based fault-tolerant control for a class of non-linear NCS is presented in [21,22]. In [23], the design of fault-tolerant control for NCS with access constraints and actuator failures is studied. Both a static scheduling method and periodic communication sequence are applied to allocate network resource and schedule the access to the network.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

H _∞ fault‐tolerant control of networked control systems with actuator failures

Wang

Zhang

Lim

et al. 2014

IET Control Theory & Applications

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The problem of H ∞ fault-tolerant control for networked control systems (NCSs) with actuator failures is addressed in this study. The authors consider the network-induced delays, including sensor-to-controller delay and controller-to-actuator delay, to have both an upper bound and a non-zero lower bound. By using a sampled-data approach, a new model is formulated based on the updating instants of the ZOH. They derive the criteria which ensure that the sample-data NCS is stable with H ∞ norm γ . The authors design the H ∞ fault-tolerant controller that guarantees the closed-loop NCS stability with H ∞ norm γ , when all control components are operational, as well as when some actuators fail to operate. Simulation examples are given to show the effectiveness and less conservative needs of the proposed method.

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Section: From the Schur Complement (20) Is Equivalent To (See Equatimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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H _∞ fault‐tolerant control of networked control systems with actuator failures

Wang

Zhang

Lim

et al. 2014

IET Control Theory & Applications

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“…In general, FTC methodologies can be classified into two types: passive FTC methodologies and active FTC methodologies [6,7]. During the last decades, there has been significant research activity in designing and analysing the passive FTC methodologies for NCSs [8][9][10][11][12][13][14][15][16][17][18]. Passive FTC methods consider system faults as special uncertainties and take no additional actions in response to the faults, whereas active FTC methodologies can reconfigure the controller by using the real-time fault information provided by the fault diagnosis scheme.…”

Section: Introductionmentioning

confidence: 99%

Integrated fault‐tolerant control methodology for non‐linear dynamical networked control systems subject to time‐varying delay

Fang

2014

IET Control Theory & Applications

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This study deals with the problem of designing an integrated fault-tolerant control (FTC) methodology for non-linear dynamical networked control systems subject to time-varying delay. For the convenience of residual generation, influence caused by network-induced delay is transformed into time-varying uncertainty, which facilitates further manipulation. A fault diagnosis scheme is utilised for fault detection and isolation. On the basis of the uncertainty and fault information obtained by the fault diagnosis procedure, an FTC component is developed to compensate for the effects of uncertainty and fault. In the absence of fault, a nominal controller is employed to deal with the system uncertainty. After fault detection estimator is activated, the controller is reconfigured to guarantee the boundedness of all the system signals until the fault is isolated. After the fault is isolated, the controller is reconfigured to improve the control performance by using the fault information generated by the isolation module. In addition, the stability of the proposed scheme is rigorously investigated. Finally, a simulation example is utilised to illustrate the performance of the proposed scheme.

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“…These features have become intrinsic properties of the modern NCSs. As an important technology for improving system safety and reliability, fault-tolerant control for NCSs has thus attracted increasing attention [1][2][3][4] and has made outstanding progress [5][6][7][8]. As is well known, the controlled plant more or less contains several nonlinear characteristics; that is, the vast majority of controlled plants are nonlinear plants.…”

Section: Introductionmentioning

confidence: 99%

Discrete Event-Triggered Robust Fault-Tolerant Control for Nonlinear Networked Control Systems withα-Safety Degree and Actuator Saturation

2015

Mathematical Problems in Engineering

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This paper deals with the discrete event-triggered robust fault-tolerant control problem for uncertain nonlinear networked control systems (NNCSs) withα-safety degree. A discrete event-triggered communication scheme (DETCS) is initially proposed, and a closed-loop fault model is subsequently established for NNCSs with actuator saturation under the DETCS. Based on an appropriately constructed delay-dependent Lyapunov–Krasovskii function, sufficient conditions are derived to guarantee the asymptotic stability of NNCSs under two different event-triggered conditions and are established as the contractively invariant sets of fault tolerance withα-safety degree. Furthermore, codesign methods between the robust fault-tolerant controller and event-triggered weight matrix are also proposed in terms of linear matrix inequality. The simulation shows that the resultant closed-loop fault NNCSs possesses a high safety margin, and an improved dynamic performance, as well as a reduced communication load. A comparative analysis of the two event-triggered conditions is discussed in the experiment section.

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Fault Tolerant Control for Networked Control Systems with Access Constraints

Cited by 5 publications

References 0 publications

H _∞ fault‐tolerant control of networked control systems with actuator failures

H _∞ fault‐tolerant control of networked control systems with actuator failures

Integrated fault‐tolerant control methodology for non‐linear dynamical networked control systems subject to time‐varying delay

Discrete Event-Triggered Robust Fault-Tolerant Control for Nonlinear Networked Control Systems withα-Safety Degree and Actuator Saturation

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Fault Tolerant Control for Networked Control Systems with Access Constraints

Cited by 5 publications

References 0 publications

H ∞ fault‐tolerant control of networked control systems with actuator failures

H ∞ fault‐tolerant control of networked control systems with actuator failures

Integrated fault‐tolerant control methodology for non‐linear dynamical networked control systems subject to time‐varying delay

Discrete Event-Triggered Robust Fault-Tolerant Control for Nonlinear Networked Control Systems withα-Safety Degree and Actuator Saturation

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H _∞ fault‐tolerant control of networked control systems with actuator failures

H _∞ fault‐tolerant control of networked control systems with actuator failures