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Fault Diagnosis Scheme for Nonlinear Stochastic Systems with Time-Varying Fault: Application to the Rigid Spacecraft Control

SYSNO ASEP	0383283
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Ostatní články
Název	Fault Diagnosis Scheme for Nonlinear Stochastic Systems with Time-Varying Fault: Application to the Rigid Spacecraft Control
Tvůrce(i)	Nguyen, H.Q. (CZ) Čelikovský, Sergej (UTIA-B)_{RID, ORCID}
Celkový počet autorů	2
Zdroj.dok.	Cybernetics and Physics. - : Rossiiskaya Akademiya Nauk - ISSN 2223-7038 Roč. 1, č. 3 (2012), s. 179-187
Poč.str.	8 s.
Forma vydání	Internet - Internet
Jazyk dok.	eng - angličtina
Země vyd.	RU - Rusko
Klíč. slova	Attitude control ; adaptive fault estimation ; LMI ; PDF
Vědní obor RIV	BC - Teorie a systémy řízení
CEP	GAP103/12/1794 GA ČR - Grantová agentura ČR
Institucionální podpora	UTIA-B - RVO:67985556
Anotace	This paper studies the problem of the fault estimation for a class of time-varying faults using output probability density function (PDF). In particular, the spacecraft control system is studied. First, the attitude control of the nonlinear model with uncertainties is given. Then, the measured output is viewed as a stochastic process and its PDF is modeled, which leads to a deterministic dynamical model including nonlinearities and uncertainties. A new adaptive fault diagnosis algorithm is proposed to improve the performance of the fault estimation. The proposed algorithm contains both the proportional and the integral term. The proportional term can improve the speed of the fault estimation, while the integral term can eliminate estimation error. Then, based on the linear matrix inequality (LMI) technique, a feasible algorithm is explored to find the designed parameters. Finally, simulation results of the spacecraft are given to show the efficiency of the proposed approach.
Pracoviště	Ústav teorie informace a automatizace
Kontakt	Markéta Votavová, votavova@utia.cas.cz, Tel.: 266 052 201.
Rok sběru	2013

Počet záznamů: 1