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LPV Feedforward Controller Synthesis for Aerospace Applications

Theis, Julian (2013) LPV Feedforward Controller Synthesis for Aerospace Applications. Master's, Technischen Universität Hamburg.

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Abstract

Linear parameter varying (LPV) control has received a lot of attention in the last two decades for allowing to apply linear design tools to nonlinear systems. While in the literature mostly feedback control is considered, the present work uses the LPV framework for the design of feedforward controllers. In order to do so, the feedforward controller synthesis is cast into a state feedback problem and solved with semidefinite programming. Similarities to inversion-based control are highlighted. Further, a decoupling scheme is employed, justifying an independent design of the feedforward controller regardless of any feedback controller already present in the loop. A nonlinear missile model of industrial complexity serves as a benchmark for the design methodology. An LPV feedforward controller for the longitudinal dynamics is designed using mixed sensitivity loopshaping techniques. Performance is evaluated in simulation both under nominal conditions and parametric uncertainty. The work concludes with an outlook on the application to the lateral dynamics.

Item URL in elib:https://elib.dlr.de/82292/
Document Type:Thesis (Master's)
Title:LPV Feedforward Controller Synthesis for Aerospace Applications
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Theis, JulianUNSPECIFIEDUNSPECIFIED
Date:2013
Journal or Publication Title:DLR IB 571-13/01
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:84
Status:Unpublished
Keywords:linear parameter varying, LPV, feedforward controller
Institution:Technischen Universität Hamburg
Department:Institut für Regelungstechnik
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems & Cabin (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control > Aircraft System Dynamics
Deposited By: Knoblach, Andreas
Deposited On:13 May 2013 09:15
Last Modified:12 Jul 2019 13:39

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