Thesis (MScEng (Electrical and Electronic Engineering))-- University of Stellenbosch, 2006. / 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.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:sun/oai:scholar.sun.ac.za:10019.1/1602 |
| Date | 03 1900 |
| Creators | Van Rhyn, P. D. |
| Contributors | Mouton, H. du T., University of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. |
| Publisher | Stellenbosch : University of Stellenbosch |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Rights | University of Stellenbosch |
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