SIMONA flight simulator implementation of a fault tolerant sliding mode scheme with on-line control allocation

Alwi, Halim; Edwards, Christopher; Stroosma, Olaf; Mulder, J.A.

doi:10.1109/acc.2008.4586719

Cited by 2 publications

(2 citation statements)

References 18 publications

(33 reference statements)

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“…In this approach the flatness property of system dynamics has been used. Lose of effectiveness of actuators which could be caused in many of fault scenarios, modeled and simulated by multiplicative fault model [12].…”

Section: Flatness Based Fault Tolerant Controlmentioning

confidence: 99%

Satellite Flatness based Fault Tolerant Control

Shahsavari¹,

Taheri²,

Esmaelzadeh³

2014

IJCA

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Applying flat systems technique in attitude fault tolerant control of an under-actuated satellite has been investigated in this article. The main purpose of this study is development and implementation of a new idea in order to recovery of satellite stability and its acceptable performance in actuator fault scenarios. Solving the attitude fault tolerant control problem is based on consideration a realistic assumption which can show the ability of FTC system in managing the fault scenarios. Lose of effectiveness of actuators which could be caused in many of fault scenarios, modeled and simulated by multiplicative model. Thanks to provided new idea in this study it will be proven that, a wide range of actuator fault scenarios with different intense of faults could be managed without need to reconfiguring the main controller. Usage of this idea affects in reducing the volume of main controller computations and provides an appropriate base for its robust designing in other to dealing with systematically fault scenarios. Furthermore, the provided active fault tolerant attitude control scheme uses analytical redundancy system which could be considered as analytical observer. The suggested analytical observer by this technique, which belongs to nonlinear observer category, can observe all of the dynamic variables in allowable range of error. Practical implications of this study belong in this fact which analytical redundancy based on new idea in order to maintaining stability could be a perfect option in different fault scenarios such as systematically uncertainties and sensor faults. Hence this idea could be implemented without need to any physical instrument. General TermsFault tolerant, flatness based control.

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Section: Flatness Based Fault Tolerant Controlmentioning

confidence: 99%

Satellite Flatness based Fault Tolerant Control

Shahsavari¹,

Taheri²,

Esmaelzadeh³

2014

IJCA

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“…The authors of [15] use SMC on a linear aircraft model for FTC without the use of fault detection and isolation (FDI), which is referred to as passive FTC. The same authors implement SMC using control allocation in [16] and apply this method on the SIMONA research simulator in [17], showing that the controller is redistributed to the functioning actuator when a fault happens on the elevator. The L 1 adaptive control technique is shown in [18] to be robust against faulty actuators, while the L 1 adaptive backstepping control (L1-AB) technique is used in [19] as the pitch autopilot for an agile missile.…”

Section: Introductionmentioning

confidence: 99%

Performance Comparison of Controllers with Fault-Dependent Control Allocation for UAVs

Sørensen

Hansen

Breivik

et al. 2017

J Intell Robot Syst

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This paper combines fault-dependent control allocation with three different control schemes to obtain fault tolerance in the longitudinal control of unmanned aerial vehicles. The paper shows that faultdependent control allocation is able to accommodate actuator faults that would otherwise be critical and it makes a performance assessment for the different control algorithms: an L 1 adaptive backstepping controller; a robust sliding mode controller; and a standard PID controller. The actuator faults considered are the partial to total loss of the elevator, which is a critical component for the safe operation of unmanned aerial vehicles. During nominal operation, only the main actuator, namely the elevator, is active for pitch control. In the event of a partial or total loss of the elevator, faultdependent control allocation is used to redistribute control to available healthy actuators. Using simulations of a Cessna 182 aircraft model, controller performance and robustness are evaluated by metrics that assess control accuracy and energy use. System uncertainties are investigated over an envelope of pertinent variation, showing that sliding mode and L 1 adaptive backstepping provide robustness, where PID control falls short. Additionally, a key finding is that the fault-dependent

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SIMONA flight simulator implementation of a fault tolerant sliding mode scheme with on-line control allocation

Cited by 2 publications

References 18 publications

Satellite Flatness based Fault Tolerant Control

Satellite Flatness based Fault Tolerant Control

Performance Comparison of Controllers with Fault-Dependent Control Allocation for UAVs

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