High voltage DC-DC converter using a series stacked topology
Date
2006-03
Authors
Van Rhyn, P. D.
Journal Title
Journal ISSN
Volume Title
Publisher
Stellenbosch : University of Stellenbosch
Abstract
This thesis presents the design and implementation of a high voltage DC-DC converter using a
series stacked topology. The converter’s specifications were set by Spoornet and the converter
forms part of a DC-AC inverter to be installed in Spoornet substations. Different converter
topologies will be considered. A high frequency, high power coaxially wound transformer will be
analysed, designed and manufactured for this specific converter application. A thermal analysis of
the transformer will be carried out. The merits of different control schemes, leading to the choice of
an average current mode controller, will be discussed. This controller will be designed and
implemented to control the converter. The converter is then simulated to test and verify the
controller functionality. A two-level series stacked converter is built and tested to verify the
converter design and to test the functionality of the coaxially wound transformer. Finally, the results
obtained will be discussed.
Description
Thesis (MScEng (Electrical and Electronic Engineering))-- University of Stellenbosch, 2006.
Keywords
Theses -- Electrical and electronic engineering, Dissertations -- Electrical and electronic engineering