Sliding Mode Fault Tolerant Control with Adaptive Diagnosis for Aircraft Engines
-
Lingfei Xiao
,
Yanbin Du
Abstract
In this paper, a novel sliding mode fault tolerant control method is presented for aircraft engine systems with uncertainties and disturbances on the basis of adaptive diagnostic observer. By taking both sensors faults and actuators faults into account, the general model of aircraft engine control systems which is subjected to uncertainties and disturbances, is considered. Then, the corresponding augmented dynamic model is established in order to facilitate the fault diagnosis and fault tolerant controller design. Next, a suitable detection observer is designed to detect the faults effectively. Through creating an adaptive diagnostic observer and based on sliding mode strategy, the sliding mode fault tolerant controller is constructed. Robust stabilization is discussed and the closed-loop system can be stabilized robustly. It is also proven that the adaptive diagnostic observer output errors and the estimations of faults converge to a set exponentially, and the converge rate greater than some value which can be adjusted by choosing designable parameters properly. The simulation on a twin-shaft aircraft engine verifies the applicability of the proposed fault tolerant control method.
Funding statement: This work is supported by the Fundamental Research Funds for the Central Universities (NS2016027).
Acknowledgements
The authors would like to thank all of team-mates and reviewers.
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- State of Aircraft Turboshaft Engines by Means of Tribotechnical Diagnostic
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- Sliding Mode Fault Tolerant Control with Adaptive Diagnosis for Aircraft Engines
- Numerical Study on the Improvement of Oil Return Structure in Aero-Engine Bearing Chambers
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Articles in the same Issue
- Frontmatter
- Mechanism of Film Cooling with One Inlet and Double Outlet Hole Injection at Various Turbulence Intensities
- State of Aircraft Turboshaft Engines by Means of Tribotechnical Diagnostic
- Theoretical Study of the Vibration Suppression on a Mistuned Bladed Disk Using a Bi-periodic Piezoelectric Network
- Effect of Axisymmetric Aft Wall Angle Cavity in Supersonic Flow Field
- A Generalized Method for the Comparable and Rigorous Calculation of the Polytropic Efficiencies of Turbocompressors
- Sliding Mode Fault Tolerant Control with Adaptive Diagnosis for Aircraft Engines
- Numerical Study on the Improvement of Oil Return Structure in Aero-Engine Bearing Chambers
- Numerical Investigation of Fuel Distribution Effect on Flow and Temperature Field in a Heavy Duty Gas Turbine Combustor
- A Novel Quasi-3D Method for Cascade Flow Considering Axial Velocity Density Ratio
