Computer Science
Scientific paper
Jan 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aipc..271.1197m&link_type=abstract
Proceedings of the tenth symposium on soacpace nuclear and propulsion. AIP Conference Proceedings, Volume 271, pp. 1197-1202 (1
Computer Science
Power Electronics, Power Supply Circuits
Scientific paper
The 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 assessments 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.
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