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Permanent link (DOI): https://doi.org/10.7939/R37M1M

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Fractional Order Transmission Line Modeling and Parameter Identification Open Access

Descriptions

Other title
Subject/Keyword
Fractional Order Calculus
Transmission Line
Parameter Identification
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Razib, Mohammad Yeasin
Supervisor and department
Tongwen Chen (Electrical and Computer Engineering)
Horacio Marquez (Electrical and Computer Engineering)
Examining committee member and department
Qing Zhao (Electrical and Computer Engineering)
Vinay Prasad (Chemical and Materials Engineering)
Department
Department of Electrical and Computer Engineering
Specialization

Date accepted
2010-09-08T19:18:23Z
Graduation date
2010-11
Degree
Master of Science
Degree level
Master's
Abstract
Fractional order calculus (FOC) has wide applications in modeling natural behavior of systems related to different areas of engineering including bioengineering, viscoelasticity, electronics, robotics, control theory and signal processing. This thesis aims at modeling a lossy transmission line using fractional order calculus and identifying its parameters. A lossy transmission line is considered where its behavior is modeled by a fractional order transfer function. A semi-infinite lossy transmission line is presented with its distributed parameters R, L, C and ordinary AC circuit theory is applied to find the partial differential equations. Furthermore, applying boundary conditions and the Laplace transformation a generalized fractional order transfer function of the lossy transmission line is obtained. A finite length lossy transmission line terminated with arbitrary load is also considered and its fractional order transfer function has been derived. Next, the frequency responses of lossy transmission lines from their fractional order transfer functions are also derived. Simulation results are presented to validate the frequency responses. Based on the simulation results it can be concluded that the derived fractional order transmission line model is capable of capturing the phenomenon of a distributed parameter transmission line. The achievement of modeling a highly accurate transmission line requires that a realistic account needs to be taken of its parameters. Therefore, a parameter identification technique to identify the parameters of the fractional order lossy transmission line is introduced. Finally, a few open problems are listed as the future research directions.
Language
English
DOI
doi:10.7939/R37M1M
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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