Fault-tolerant supervisory control with permanent faults

Mulahuwaish, Aos; Leduc, Ryan J.

doi:10.1080/00207179.2021.2015626

Cited by 2 publications

(7 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We now present a consistency requirement that our timed system must satisfy, the timed fault-tolerant (TFT) consistency definition. This is an extension of the faulttolerant (FT) consistency definition from Mulahuwaish, 1,3,4 where the only difference is that Point 7 is new. It thus follows that if a system is TFT consistent it is also FT consistent.…”

Section: Timed Fault-tolerant Consistencymentioning

confidence: 99%

“…In this paper, we will use five faults scenarios that were presented in Mulahuwaish et al, [1][2][3][4] as they are still applicable in the TDES setting. The scenarios range from simple situations easy to verify, to ones that are more flexible in terms of how faults can occur and how often, but more expensive to verify.…”

Section: Fault Scenariosmentioning

confidence: 99%

“…We note that we don't need to introduce corresponding timed faulttolerant nonblocking definitions, as the ones from Mulahuwaish, [1][2][3][4] still apply. This is because the nonblocking property is the same for both the timed and untimed setting.…”

Section: Timed Fault-tolerant Controllability Definitionsmentioning

confidence: 99%

“…In Mulahuwaish 1,3,4 we introduced a discrete-event system-based fault tolerance approach that was designed to handle intermittent faults. An intermittent fault is a malfunction of a device or system that occurs at intervals, usually irregular, in a device or system that functions normally at other times.…”

Section: Introductionmentioning

confidence: 99%

“…Fortunately, verifying nonblocking (a weak check to make sure the system does not deadlock or livelock) is the same for both timed and untimed DES so we don't have to develop timed nonblocking fault-tolerant properties; we can simply re-use the fault-tolerant nonblocking properties and algorithms developed in Mulahuwaish. [1][2][3][4]…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Timed fault-tolerant supervisory control

Leduc,

Mulahuwaish,

Alsuwaidan

2024

IRATJ

Self Cite

View full text Add to dashboard Cite

In Mulahuwaish,1–4 we investigated the problem of fault tolerance in the framework of untimed discrete-event systems (DES). This approach is different from the typical fault-tolerant methodology as the approach does not rely on detecting faults and switching to a new supervisor; it requires a supervisor to work correctly under normal and fault conditions. This is a passive approach that relies upon inherent redundancy in the system being controlled. In this paper we extend the work of Mulahuwaish1–4 to the timed DES (TDES) setting. We introduce our setting, and then provide a set of timed fault tolerant definitions designed to capture different types of fault scenarios and to ensure that our system remains controllable in each scenario. As the nonblocking property is the same for timed and untimed DES, the untimed fault-tolerant nonblocking properties and algorithms from Mulahuwaish1–4 can also be used in the timed setting without any changes. We then present algorithms to verify these properties followed by complexity analyses and correctness proofs of the algorithms. An example is then provided to illustrate our approach.

show abstract

Section: Timed Fault-tolerant Consistencymentioning

confidence: 99%

Section: Fault Scenariosmentioning

confidence: 99%

Section: Timed Fault-tolerant Controllability Definitionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Timed fault-tolerant supervisory control

Leduc,

Mulahuwaish,

Alsuwaidan

2024

IRATJ

Self Cite

View full text Add to dashboard Cite

show abstract

Output feedback based PD-type iterative learning fault-tolerant control for uncertain discrete systems with actuator faults

Shen,

Zou,

Wang

2024

Proceedings of the Institution of Mechanical Engineers, Part I:

View full text Add to dashboard Cite

This article investigates an output feedback based proportional-derivative (PD)-type iterative learning fault-tolerant control approach for a category of uncertain discrete systems subject to actuator faults. To develop the iterative learning control scheme based on the output measurement, the fault system of repetitive nature is equivalently converted into a discrete linear repetitive process. By applying a Lyapunov function, this article establishes new adequate criteria for to ensure the asymptotic stability of the implemented fault-tolerant controller through linear matrix inequality constraints. The precise allocation of the controller gain matrices is also provided. Finally, simulation results of an injection molding process demonstrate the effectiveness and viability of the proposed approach.

show abstract

Fault-tolerant supervisory control with permanent faults

Cited by 2 publications

References 22 publications

Timed fault-tolerant supervisory control

Timed fault-tolerant supervisory control

Output feedback based PD-type iterative learning fault-tolerant control for uncertain discrete systems with actuator faults

Contact Info

Product

Resources

About