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A study of Schwarz converters for nuclear powered spacecraftHigh power space systems which use low dc voltage, high current sources such as thermoelectric generators, will most likely require high voltage conversion for transmission purposes. This study considers the use of the Schwarz resonant converter for use as the basic building block to accomplish this low-to-high voltage conversion for either a dc or an ac spacecraft bus. The Schwarz converter has the important assets of both inherent fault tolerance and resonant operation; parallel operation in modular form is possible. A regulated dc spacecraft bus requires only a single stage converter while a constant frequency ac bus requires a cascaded Schwarz converter configuration. If the power system requires constant output power from the dc generator, then a second converter is required to route unneeded power to a ballast load.
Document ID
19870014470
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Stuart, Thomas A. (NASA Lewis Research Center Cleveland, OH, United States)
Schwarze, Gene E. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1987
Subject Category
Electronics And Electrical Engineering
Report/Patent Number
E-3588
AIAA PAPER 87-9314
NASA-TM-89911
NAS 1.15:89911
Accession Number
87N23903
Funding Number(s)
PROJECT: RTOP 506-41-31
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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