Integral sliding mode fault tolerant control incorporating on-line control allocation

Hamayun, Mirza Tariq; Edwards, Christopher; Alwi, Halim

doi:10.1109/vss.2010.5544704

Cited by 21 publications

(5 citation statements)

References 16 publications

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“…Along with the observers, a variety of controller design tools have been researched. Mathematical methods like sliding mode control, 17 linear matrix inequality, 18 pseudo-inverse 19 and H ∞ control 20 are common and sometime combined to fit the system need.…”

Section: Introductionmentioning

confidence: 99%

Characteristic model–based adaptive fault-tolerant control for four-PMSM synchronization system

Gao¹,

Wu²,

Wang³

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part I:

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In four-motor servo systems, actuator failures influence control performance seriously through huge inertia ratio changes and unknown disturbances. To solve this problem, an adaptive fault-tolerant control scheme based on characteristic modeling and extended state observer is proposed. First, an adaptive sliding mode observer is designed as fault detection part and offers motor information for controller. Second, to simplify complex dynamic model, this servo system is described by a second-order difference equation. This model integrates uncertainties into three time–varying characteristic parameters to reflect system status. Third, a discrete-time extended state observer is applied to restrain system error caused by actuator failure. Then, a fault-tolerant controller is designed based on characteristic model, and its stability is guaranteed in the sense of Lyapunov stability theorem. These four parts make up the adaptive control scheme and its effectiveness in system control, and fault tolerant is evaluated by both simulation and experiment results.

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Section: Introductionmentioning

confidence: 99%

Characteristic model–based adaptive fault-tolerant control for four-PMSM synchronization system

Gao¹,

Wu²,

Wang³

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part I:

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show abstract

“…In order to handle this problem, the integral SMC (ISMC) was proposed in [19,20]. Most of the existing results about FTC based on ISMC consider the linear systems [21,22]. Non-linear fault-tolerant schemes were proposed based on ISMC allocation scheme in [23,24], where it was assumed that there existed a known controller guaranteeing the stability of the nominal dynamics.…”

Section: Introductionmentioning

confidence: 99%

Adaptive fault‐tolerant control for affine non‐linear systems based on approximate dynamic programming

Fan

Yang

2016

IET Control Theory & Applications

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“…In all this work it was assumed that the system states are known and that state feedback control schemes could be employed. More recently a FTC approach has been proposed in [12], which considers integral sliding mode (ISM) ideas to achieve fault tolerance. The idea of ISM control originally proposed in [20], [7] is to eliminate the reaching phase associated with SMC schemes.…”

Section: Introductionmentioning

confidence: 99%

“…In [8] the state dependent method to design the integral sliding surface from [6], was developed into an output feedback framework. The main contribution of this paper is to relax the assumption associated with [1], [12] that state information is known, and to consider instead the situation where only measured outputs are available. The proposed scheme includes a full order linear unknown input observer UIO, to estimate the system states used in the design of the (virtual) controller.…”

Section: Introductionmentioning

confidence: 99%

An Output Integral Sliding Mode FTC Scheme Using Control Allocation

Hamayun

Alwi

Edwards

2016

Fault Tolerant Control Schemes Using Integral Sliding Modes

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Abstract-In this paper, a new fault tolerant control scheme is proposed for systems where only output information is available. The ideas of integral sliding mode control are used to ensure robustness throughout the entire response of the system, even in certain actuator fault/failure cases. This is accomplished by integrating fixed control allocation within this ISM framework. An unknown input observer is included in the proposed scheme to estimate the states, as it is assumed that there is no information of the true states or knowledge of the faults or failures from a monitoring scheme. A rigorous closed-loop stability analysis is presented, and in fact, a convex representation of the problem is formulated to synthesize a controller. Simulation results on a benchmark civil aircraft model show good tracking of the commanded signals.

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Integral sliding mode fault tolerant control incorporating on-line control allocation

Cited by 21 publications

References 16 publications

Characteristic model–based adaptive fault-tolerant control for four-PMSM synchronization system

Characteristic model–based adaptive fault-tolerant control for four-PMSM synchronization system

Adaptive fault‐tolerant control for affine non‐linear systems based on approximate dynamic programming

An Output Integral Sliding Mode FTC Scheme Using Control Allocation

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