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Impedance-source network power converters

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posted on 2022-03-28, 11:48 authored by Yam P. Siwakoti
The research described in this thesis covers the analysis and design of impedance-source networks for a wide range of electric power conversion applications (dc-dc, dc-ac, ac-dc, ac-ac). Variance impedance networks, circuit topologies and modulation techniques were analysed, designed and tested in the laboratory to improve performance (efficiency, reliability and power density) of the converter. To achieve this, three distinct approaches were taken in this research, which include: i) investigate and implement a new modulation technique, ii) retrofit existing topologies to get an improved hybrid topology, and iii) investigate a novel converter topology with desired performance.


Table of Contents

1. Introduction -- 2. Improved modulation techniques -- 3. Quasi Z-source push-pull dc-dc converter -- 4. Y-source impedance network -- 5. Analysis of leakage inductances on impedance source networks -- 6. A distributed DC power system using quasi-Z source dc-dc converter -- 7. Conclusions.


Bibliography: pages 175-186 Thesis by publication.

Awarding Institution

Macquarie University

Degree Type

Thesis PhD


PhD, Macquarie University, Faculty of Science and Engineering, Department of Engineering

Department, Centre or School

Department of Engineering

Year of Award


Principal Supervisor

Graham E. Town

Additional Supervisor 1

Frede Blaabjerg


Copyright Yam P. Siwakoti 2014. Copyright disclaimer: Complete version suppressed due to copyright restrictions. However, on receipt of a Document Supply Request, placed with Macquarie University Library by another library, we will consider supplying a copy of this thesis. For more information on Macquarie University’s Document Supply, please contact




1 online resource (xiv, 186 pages) illustrations (some colour)

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