dc.contributor.author	Watson, Robert III	en
dc.contributor.committeechair	Lee, Fred C.	en
dc.contributor.committeemember	Sable, Don M.	en
dc.contributor.committeemember	Lai, Jih-Sheng	en
dc.contributor.committeemember	Nelson, Douglas J.	en
dc.contributor.committeemember	Chen, Dan Y.	en
dc.contributor.department	Electrical and Computer Engineering	en
dc.date.accessioned	2014-03-14T20:22:24Z	en
dc.date.adate	1998-08-17	en
dc.date.available	2014-03-14T20:22:24Z	en
dc.date.issued	1998-08-07	en
dc.date.rdate	1998-08-17	en
dc.date.sdate	1998-08-07	en
dc.description.abstract	Power conversion system design issues are expanding their role in information technology equipment design philosophies. These issues include not only improving power conversion efficiency, but also increased concerns regarding the cost and complexity of the power conversion design techniques utilized to satisfy the host system's total performance requirements. In particular, in computer system (personal computers, workstations, and servers) designs, the power "supplies" are rapidly becoming a limiting factor in meeting overall design objectives. This dissertation addresses the issue of simplifying the architecture of distributed power systems incorporated into computing equipment. In the dissertation's first half, the subject of the design of the distributed power system's front-end converter is investigated from the perspective of simplifying the conversion process while simultaneously improving efficiency. This is initially accomplished by simplifying the second-stage DC/DC converter in the standard two-stage front-end design (PFC followed by DC/DC conversion) through the incorporation of secondary-side control. Unique modifications are then made to two basic topologies (the flyback and boost converter topologies) that enable the two-stage front-end design to be reduced to an isolated PFC conversion stage, resulting in a front-end design that features reduced complexity and higher efficiency. In the dissertation's second half, the overall DC distributed power system design concept is simplified through the elimination of power processing conversion steps - the result being the creation of a high-frequency (HF) AC distributed power system. Design techniques for generating, distributing, and processing HF AC power in this new system are developed and experimentally verified. Also, an experimental comparison between both DC and AC distributed power systems is performed, illustrating in a succinct fashion the merits and limitations of both approaches.	en
dc.description.degree	Ph. D.	en
dc.identifier.other	etd-71398-22552	en
dc.identifier.sourceurl	http://scholar.lib.vt.edu/theses/available/etd-71398-22552/	en
dc.identifier.uri	http://hdl.handle.net/10919/30664	en
dc.publisher	Virginia Tech	en
dc.relation.haspart	fm.pdf	en
dc.relation.haspart	ch1.pdf	en
dc.relation.haspart	ch2.pdf	en
dc.relation.haspart	ch3.pdf	en
dc.relation.haspart	ch4.pdf	en
dc.relation.haspart	ch5.pdf	en
dc.relation.haspart	ch6.pdf	en
dc.relation.haspart	ch7.pdf	en
dc.relation.haspart	refs.pdf	en
dc.relation.haspart	appendix.pdf	en
dc.rights	In Copyright	en
dc.rights.uri	http://rightsstatements.org/vocab/InC/1.0/	en
dc.subject	DC Distributed Power System	en
dc.subject	AC Distributed Power System	en
dc.subject	Soft-switching	en
dc.subject	Electromagnetic Interference	en
dc.title	New Techniques in the Design of Distributed Power Systems	en
dc.type	Dissertation	en
thesis.degree.discipline	Electrical and Computer Engineering	en
thesis.degree.grantor	Virginia Polytechnic Institute and State University	en
thesis.degree.level	doctoral	en
thesis.degree.name	Ph. D.	en

New Techniques in the Design of Distributed Power Systems

Files

Original bundle

Collections