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Design of Robust Drag-Free Controllers with Given Structure

Pettazzi, Lorenzo and Lanzon, Alexander and Theil, Stephan and Ercoli Finzi, Amalia (2009) Design of Robust Drag-Free Controllers with Given Structure. Journal of Guidance, Control, and Dynamics, 32 (5), pp. 1609-1621. DOI: 10.2514/1.40279

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In this paper the problem of designing a robust controller with given structure for a plant describing a drag-free satellite is addressed. From recent experiences in drag-free control design we first derive an uncertain plant set representative of many drag-free missions with nonspherical test masses. The design plant is uncertain and a performance requirement is imposed on the absolute acceleration of the test mass along a measurement axis. The v-gap metric is first used to derive a simplified uncertain design plant. Then the main performance requirement is broken down into requirements on the uncertain closed loop behavior of the simplified system. The fulfillment of this new set of requirements guarantees robust achievement of the overall system goal. Then optimal single-input–singleoutput controllers are designed that robustly achieve the desired level of performance. The method proposed allows one to properly account for the uncertainties in the system retaining the decentralized structure of the controller suggested by the peculiar features of the design plant.

Document Type:Article
Title:Design of Robust Drag-Free Controllers with Given Structure
AuthorsInstitution or Email of AuthorsAuthors ORCID
Pettazzi, LorenzoUniversity of BremenUNSPECIFIED
Lanzon, AlexanderUniversity of ManchesterUNSPECIFIED
Ercoli Finzi, AmaliaPolitecnico di MilanoUNSPECIFIED
Date:September 2009
Journal or Publication Title:Journal of Guidance, Control, and Dynamics
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1609-1621
Keywords:drag-free control, robust performance, controller synthesis
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignment
DLR - Research area:Space
DLR - Program:W - no assignment
DLR - Research theme (Project):W - no assignment (old)
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Regelungs- und Datensysteme
Deposited By: Theil, Dr.-Ing. Stephan
Deposited On:02 Dec 2009 10:58
Last Modified:06 Oct 2016 10:44

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