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Design of Robust Dynamic Inversion Control Laws using Multi-Objective Optimization

Looye, Gertjan and Joos, Hans-Dieter (2001) Design of Robust Dynamic Inversion Control Laws using Multi-Objective Optimization. Proc. of Guidance, Navigation, and Control Conference and Exhibit, 2001-08-06 - 2001-08-09, Montreal (Canada).

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Abstract

The design of robust attitude control laws for a civil aircraft with nonlinear dynamic inversion and multiobjective optimization is discussed. Dynamic inversion is a methodology that achieves linearization and decoupled command responses of the closed-loop system via inverse model equations in the feedback loop. Using a linear outer loop controller the desired dynamic behavior is imposed. For tuning the free controller parameters, multi-objective optimization is used. The required robustness is achieved via a multi-model approach, as well as local robustness measures (e.g. gain and phase margins) as optimization criteria. As a new approach, not only the linear controller gains are optimized, but also physical parameters in the inverse model that are considered uncertain in the design model. The resulting control laws are used as inner loops of an autoland system, which was assessed for JAR-AWO requirements and successfully flight tested.

Document Type:Conference or Workshop Item (Paper)
Additional Information:LIDO-Berichtsjahr=2001,
Title:Design of Robust Dynamic Inversion Control Laws using Multi-Objective Optimization
Authors:
AuthorsInstitution or Email of Authors
Looye, GertjanUNSPECIFIED
Joos, Hans-DieterUNSPECIFIED
Date:May 2001
Status:Published
Keywords:Flight control, nonlinear control, robust control design, automatic landing, dynamic inversion, object-oriented modelling,
Event Title:Proc. of Guidance, Navigation, and Control Conference and Exhibit
Event Location:Montreal (Canada)
Event Type:international Conference
Event Dates:2001-08-06 - 2001-08-09
Organizer:AIAA-2001-4285
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignement
DLR - Program:no assignment
DLR - Research theme (Project):other
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics
Deposited By: elib DLR-Beauftragter
Deposited On:13 Mar 2006
Last Modified:12 Dec 2013 20:02

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