Incipient Fault Detection and Reconstruction Using an Adaptive Sliding-Mode Observer for the Actuators of Fixed-Wing Aircraft

Wang, Lina; Zhao, Wen; Liu, Zhenbao; Dang, Qingqing; Zou, Xu; Wang, Kai

doi:10.3390/aerospace10050422

Open AccessArticle

Incipient Fault Detection and Reconstruction Using an Adaptive Sliding-Mode Observer for the Actuators of Fixed-Wing Aircraft

by

Lina Wang

¹

,

Wen Zhao

^1,*,

Zhenbao Liu

^1,2,

Qingqing Dang

¹,

Xu Zou

¹ and

Kai Wang

¹

School of Civil Aviation, Northwestern Polytechnical University, Xi’an 710021, China

²

Shenzhen Research Institute, Northwestern Polytechnical University, Shenzhen 518057, China

^*

Author to whom correspondence should be addressed.

Aerospace 2023, 10(5), 422; https://doi.org/10.3390/aerospace10050422

Submission received: 14 September 2022 / Revised: 20 February 2023 / Accepted: 21 March 2023 / Published: 29 April 2023

(This article belongs to the Collection Avionic Systems)

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Abstract

This paper proposes a new method of detection and reconstruction of the incipient fault of fixed-wing actuators based on an adaptive sliding-mode observer. First, a mathematical model of a fixed-wing aircraft is derived under certain assumptions, considering nonlinear terms and system disturbances. Second, by introducing a nonsingular coordinate transformation, the incipient faults are separated from the disturbances. For a subsystem with no disturbances, the Luenberger observer can estimate the incipient fault. For a subsystem with disturbances, the sliding-mode observer is robust against these disturbances. The Lyapunov stability theory guarantees dynamic error convergence and system stability. The evaluation function was designed to realize residual evaluation and threshold judgment. Third, based on the concept of equivalent output injection, an adaptive sliding-mode observer method is proposed to reconstruct actuator faults precisely under the condition of the uncertain system structure. The design steps of the proposed reconstruction method are introduced in the form of a linear matrix inequality problem, which provides an effective method for calculating the design parameters. Finally, the simulation results of the De Havilland DHC-2 “Beaver” aircraft demonstrate the correctness and effectiveness of the proposed method.

Keywords: fault reconstruction; fault detection; actuator fault; linear matrix inequality; observer

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MDPI and ACS Style

Wang, L.; Zhao, W.; Liu, Z.; Dang, Q.; Zou, X.; Wang, K. Incipient Fault Detection and Reconstruction Using an Adaptive Sliding-Mode Observer for the Actuators of Fixed-Wing Aircraft. Aerospace 2023, 10, 422. https://doi.org/10.3390/aerospace10050422

AMA Style

Wang L, Zhao W, Liu Z, Dang Q, Zou X, Wang K. Incipient Fault Detection and Reconstruction Using an Adaptive Sliding-Mode Observer for the Actuators of Fixed-Wing Aircraft. Aerospace. 2023; 10(5):422. https://doi.org/10.3390/aerospace10050422

Chicago/Turabian Style

Wang, Lina, Wen Zhao, Zhenbao Liu, Qingqing Dang, Xu Zou, and Kai Wang. 2023. "Incipient Fault Detection and Reconstruction Using an Adaptive Sliding-Mode Observer for the Actuators of Fixed-Wing Aircraft" Aerospace 10, no. 5: 422. https://doi.org/10.3390/aerospace10050422

APA Style

Wang, L., Zhao, W., Liu, Z., Dang, Q., Zou, X., & Wang, K. (2023). Incipient Fault Detection and Reconstruction Using an Adaptive Sliding-Mode Observer for the Actuators of Fixed-Wing Aircraft. Aerospace, 10(5), 422. https://doi.org/10.3390/aerospace10050422

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Incipient Fault Detection and Reconstruction Using an Adaptive Sliding-Mode Observer for the Actuators of Fixed-Wing Aircraft

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