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Multimegawatt dynamic NEP PMAD studyThe National Aeronautics and Space Administration Lewis Research Center (NASA LeRC) is developing a FORTRAN-based model of a complete nuclear electric propulsion (NEP) vehicle to be used for piloted or cargo missions to the Moon or Mars. The proposed vehicle will use either a Brayton or K-Rankine power conversion cycle, and either ion or magnetoplasmadynamic (MPD) thrusters. In support of this effort, Rocketdyne evaluated various power management and distribution (PMAD) approaches and selected a low-frequency design that is based on the direct use of the alternator voltage and frequency for power transmission. This approach was compared with dc and high-frequency ac designs, and selected on the basis of mass, efficiency, and qualitative assessment of power quality, reliability and development costs. This low-frequency architecture will be used as the reference in future NEP PMAD studies and for the subsequent FORTRAN model development.
Document ID
19930007437
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Metcalf, Kenneth J. (Rockwell International Corp. Canoga Park, CA, United States)
Date Acquired
September 6, 2013
Publication Date
November 1, 1992
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
NASA-CR-190764
NAS 1.26:190764
Meeting Information
Meeting: Symposium on Space Nuclear Power and Propulsion
Location: Albuquerque, NM
Country: United States
Start Date: January 10, 1993
End Date: January 14, 1993
Accession Number
93N16626
Funding Number(s)
CONTRACT_GRANT: NAS3-25808
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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