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Optimization-based tuning of LPV fault detection filters for civil transport aircraft

Ossmann, Daniel and Varga, Andreas (2011) Optimization-based tuning of LPV fault detection filters for civil transport aircraft. EUCASS 2011, Sankt Petersburg, Russland.

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Abstract

In this paper we propose a two steps optimal synthesis approach of robust fault detection filters for the model based diagnosis of sensor faults for an augmented civil aircraft. In the first step a direct analytic synthesis of a linear parameter varying (LPV) fault detection filter is performed for the open-loop aircraft using an extension of the nullspace based synthesis method to LPV systems. The employed scheduling parameters are either directly measurable flight conditions (altitude and speed) or aircraft parameters estimated in real time (mass and center of gravity position). In the second step, a multi-objective optimization problem is solved for the optimal tuning of the LPV detector parameters to ensure satisfactory fault detection performance for the augmented nonlinear closed-loop aircraft. Worst-case global search has been employed to assess the robustness of the fault detection system in the presence of aerodynamics uncertainties and estimation errors in the aircraft parameters. The main appeal of the proposed approach is its applicability to any robustly stable closed-loop aircraft simulation model, for which the open-loop aircraft model is trimmable and linearizable. An application of the proposed method is presented for the detection of failures in the angle-of-attack sensor.

Item URL in elib:https://elib.dlr.de/90251/
Document Type:Conference or Workshop Item (Speech)
Title:Optimization-based tuning of LPV fault detection filters for civil transport aircraft
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ossmann, Danieldaniel.ossmann (at) dlr.deUNSPECIFIED
Varga, AndreasAndreas.Varga (at) DLR.deUNSPECIFIED
Date:July 2011
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Fault Detection, Flight Control
Event Title:EUCASS 2011
Event Location:Sankt Petersburg, Russland
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control > Aircraft System Dynamics
Deposited By: Ossmann, Dr. Daniel
Deposited On:13 Aug 2014 12:40
Last Modified:31 Jul 2019 19:47

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