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light weight, high power, high voltage dc/dc converter technologiesPower-conditioning weight reductions by orders of magnitude will be required to enable the megawatt-power-level space systems envisioned by the Strategic Defense Initiative, the Air Force, and NASA. An interagency program has been initiated to develop an 0.1-kg/kW dc/dc converter technology base for these future space applications. Three contractors are in the first phase of a competitive program to develop a megawatt dc/dc converter. Researchers at NASA Lewis Research Center are investigating innovative converter topology control. Three different converter subsystems based on square wave, resonant, and super-resonant topologies are being designed. The components required for the converter designs cover a wide array of technologies. Two different switches, one semiconductor and the other gas, are under development. Issues related to thermal management and material reliability for inductors, transformers, and capacitors are being investigated in order to maximize power density. A brief description of each of the concepts proposed to meet the goals of this program is presented.
Document ID
19910053362
Document Type
Conference Paper
Authors
Kraus, Robert
(W.J. Schafer Associates, Inc. Arlington, VA, United States)
Myers, Ira
(Schafer (W. J.) Associates, Inc. Arlington, VA, United States)
Baumann, Eric
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1990
Subject Category
ELECTRONICS AND ELECTRICAL ENGINEERING
Meeting Information
Intersociety Energy Conversion Engineering Conference(Reno, NV)
Distribution Limits
Public
Copyright
Other