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International Federation of Automatic Control (IFAC), IFAC-PapersOnLine, 17(49), p. 432-437, 2016

DOI: 10.1016/j.ifacol.2016.09.074

International Federation of Automatic Control (IFAC), IFAC-PapersOnLine, 21(48), p. 194-199, 2015

DOI: 10.1016/j.ifacol.2015.09.527

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Combined Geometric and Neural Network Approach to Generic Fault Diagnosis in Satellite Reaction Wheels

Journal article published in 2015 by P. Baldi, M. Blanke ORCID, P. Castaldi, N. Mimmo, S. Simani
This paper is available in a repository.
This paper is available in a repository.

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Abstract

This paper presents a novel scheme for diagnosis of faults affecting the sensors measuring the satellite attitude, body angular velocity and flywheel spin rates as well as defects related to the control torques provided by satellite reaction wheels. A nonlinear geometric design is used to avoid that aerodynamic disturbance torques have unwanted influence on the residuals exploited for fault detection and isolation. Radial basis function neural networks are used to obtain fault estimation filters that do not need a priori information about the fault internal models. Simulation results are based on a detailed nonlinear satellite model with embedded disturbance description. The results document the efficacy of the proposed diagnosis scheme ; © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/