Fuzzy adaptive fault diagnosis and compensation for variable structure hypersonic vehicle with multiple faults.

Based on the type-II fuzzy logic, this paper proposes a robust adaptive fault diagnosis and fault-tolerant control (FTC) scheme for multisensor faults in the variable structure hypersonic vehicles with parameter uncertainties. Type-II fuzzy method approximates the original models while eliminating t...

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Autores principales:	Kaiyu Hu, Wenhao Li, Zian Cheng
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a9a4b2aca69943d8aada8615ec4f1734
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id	oai:doaj.org-article:a9a4b2aca69943d8aada8615ec4f1734
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spelling	oai:doaj.org-article:a9a4b2aca69943d8aada8615ec4f17342021-12-02T20:18:06ZFuzzy adaptive fault diagnosis and compensation for variable structure hypersonic vehicle with multiple faults.1932-620310.1371/journal.pone.0256200https://doaj.org/article/a9a4b2aca69943d8aada8615ec4f17342021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0256200https://doaj.org/toc/1932-6203Based on the type-II fuzzy logic, this paper proposes a robust adaptive fault diagnosis and fault-tolerant control (FTC) scheme for multisensor faults in the variable structure hypersonic vehicles with parameter uncertainties. Type-II fuzzy method approximates the original models while eliminating the parameter uncertainties. Hence the sensor faults are detected and isolated by the multiple output residuals and thresholds considering nonlinear approximation errors and disturbance. Based on the fuzzy adaptive augmented observer, the faults and disturbance are all estimated accurately by an improved proportional-differential part. Then a variable structure FTC scheme repairs the faults by the estimation, the fast-varying disturbance is considered in FTC scheme and is compensated by the control parameters designed based on its derivative function, thereby enhancing the output robust tracking accuracy of the variable structure hypersonic vehicles. The Lyapunov theory proves the system robust stability, semi-physical simulation verifies the validity of the proposed method and the superiority compared with the traditional method.Kaiyu HuWenhao LiZian ChengPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 8, p e0256200 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kaiyu Hu Wenhao Li Zian Cheng Fuzzy adaptive fault diagnosis and compensation for variable structure hypersonic vehicle with multiple faults.
description	Based on the type-II fuzzy logic, this paper proposes a robust adaptive fault diagnosis and fault-tolerant control (FTC) scheme for multisensor faults in the variable structure hypersonic vehicles with parameter uncertainties. Type-II fuzzy method approximates the original models while eliminating the parameter uncertainties. Hence the sensor faults are detected and isolated by the multiple output residuals and thresholds considering nonlinear approximation errors and disturbance. Based on the fuzzy adaptive augmented observer, the faults and disturbance are all estimated accurately by an improved proportional-differential part. Then a variable structure FTC scheme repairs the faults by the estimation, the fast-varying disturbance is considered in FTC scheme and is compensated by the control parameters designed based on its derivative function, thereby enhancing the output robust tracking accuracy of the variable structure hypersonic vehicles. The Lyapunov theory proves the system robust stability, semi-physical simulation verifies the validity of the proposed method and the superiority compared with the traditional method.
format	article
author	Kaiyu Hu Wenhao Li Zian Cheng
author_facet	Kaiyu Hu Wenhao Li Zian Cheng
author_sort	Kaiyu Hu
title	Fuzzy adaptive fault diagnosis and compensation for variable structure hypersonic vehicle with multiple faults.
title_short	Fuzzy adaptive fault diagnosis and compensation for variable structure hypersonic vehicle with multiple faults.
title_full	Fuzzy adaptive fault diagnosis and compensation for variable structure hypersonic vehicle with multiple faults.
title_fullStr	Fuzzy adaptive fault diagnosis and compensation for variable structure hypersonic vehicle with multiple faults.
title_full_unstemmed	Fuzzy adaptive fault diagnosis and compensation for variable structure hypersonic vehicle with multiple faults.
title_sort	fuzzy adaptive fault diagnosis and compensation for variable structure hypersonic vehicle with multiple faults.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/a9a4b2aca69943d8aada8615ec4f1734
work_keys_str_mv	AT kaiyuhu fuzzyadaptivefaultdiagnosisandcompensationforvariablestructurehypersonicvehiclewithmultiplefaults AT wenhaoli fuzzyadaptivefaultdiagnosisandcompensationforvariablestructurehypersonicvehiclewithmultiplefaults AT ziancheng fuzzyadaptivefaultdiagnosisandcompensationforvariablestructurehypersonicvehiclewithmultiplefaults
_version_	1718374302610358272

Fuzzy adaptive fault diagnosis and compensation for variable structure hypersonic vehicle with multiple faults.

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