This dissertation addresses several key issues related to high-frequency soft-switching PWM three-phase power converters. These are:
1. Analysis, synthesis, and design of three-phase soft-switching PWM power converter topologies
2. Design of input EMI filters for three-phase converters
3. Design of microprocessor controllers for three-phase converters.
An analysis of existing soft-switching PWM techniques is performed, and two generalized soft-switching PWM converter circuit representations are derived.
Based on these representations and common topological properties of three-phase and dc-dc PWM converters, two new procedures for synthesis of three-phase soft-switching PWM converters are derived. The two procedures are used to synthesize five new three-phase soft-switching PWM converter topologies suitable for wide range of applications.
A digital signal processor-based controller implementation example is presented. It demonstrates the feasibility of producing versatile, high performance, reliable, low-cost digital controllers for soft-switching PWM three-phase power converters operating at high switching frequencies.
A new approach to the design of input filters for ac power electronic circuits is presented here. This approach is based on the application of a vast body of knowledge about passive L-C filters that has existed for many years, but has not been used in power electronics. New passive and active filter pole damping schemes are applied to high-order elliptic filters, resulting in significant filter size reduction compared to the standard filter designs. / Ph. D.
| Identifer | oai:union.ndltd.org:VTETD/oai:vtechworks.lib.vt.edu:10919/40059 |
| Date | 21 October 2005 |
| Creators | Vlatkovic, Vlatko |
| Contributors | Electrical Engineering, Chen, Dan Y., Baumann, William T., Klaus, Martin, Lee, Fred C., Borojević, Dušan |
| Publisher | Virginia Tech |
| Source Sets | Virginia Tech Theses and Dissertation |
| Language | English |
| Detected Language | English |
| Type | Dissertation, Text |
| Format | xiii, 224 leaves, BTD, application/pdf, application/pdf |
| Rights | In Copyright, http://rightsstatements.org/vocab/InC/1.0/ |
| Relation | OCLC# 32772573, LD5655.V856_1994.V538.pdf |
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