Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
Identifier
ETD_4367
PhysicalDescription
Form (authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
vii, 51 p. : ill.
Note (type = degree)
M.S.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Kliti Kodra
Abstract (type = abstract)
Fuel cell systems are considered important clean energy sources with great potential for the future. The mathematical models of fuel cell – fuel processing systems (FC – FPS) are quite complex therefore it is important to simplify them for efficient study. In this thesis we apply order-reduction techniques to replace a large scale model with a much smaller one while still retaining the original behavior. Two order-reduction techniques, namely, the balancing transformation and balancing residualization applied to an 18th-order FC – FPS model are investigated in the first part of the study. The results show that the reduced system even down to 5th-order still retains the original dynamics. In the second part of the thesis we demonstrate how to put linear system in singularly perturbed form and then investigate the approximate gramians and balancing transformation of the reduced-order system. For the linear singularly perturbed system in explicit form we provide a method to evaluate the exact gramians in terms of pure slow and pure fast reduced-order Lyapunov algebraic equations and improve the approximate method available in the control literature for order-reduction of singularly perturbed systems via balancing transformation.
Rutgers University. Graduate School - New Brunswick
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License
Name
Author Agreement License
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I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.