Loading...
Please wait, while we are loading the content...
Power conditioning system modelling for nuclear electric propulsion
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Metcalf, Kenneth J. |
| Copyright Year | 1993 |
| Description | NASA LeRC is currently developing a Fortran based model of a complete nuclear electric propulsion (NEP) vehicle that would be used for piloted and cargo missions to the Moon or Mars. The proposed vehicle design will use either a Brayton or K-Rankine power conversion cycle to drive a turbine coupled with a rotary alternator. Two thruster types are also being studied, ion and magnetoplasmadynamic (MPD). In support of this NEP model, Rocketdyne developed a power management and distribution (PMAD) subroutine that provides parametric outputs for selected alternator operating voltages and frequencies, thruster types, system power levels, and electronics coldplate temperatures. The end-to-end PMAD model described is based on the direct use of the alternator voltage and frequency for transmitting power to either ion or MPD thrusters. This low frequency transmission approach was compared with dc and high frequency ac designs, and determined to have the lowest mass, highest efficiency, highest reliability and lowest development costs. While its power quality is not as good as that provided by a high frequency system, it was considered adequate for both ion and MPD engine applications. The low frequency architecture will be used as the reference in future NEP PMAD studies. |
| File Size | 6232001 |
| Page Count | 166 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940016706 |
| Archival Resource Key | ark:/13960/t6741pt7s |
| Language | English |
| Publisher Date | 1993-11-01 |
| Access Restriction | Open |
| Subject Keyword | Energy Production And Conversion Power Conditioning Electric Potential Subroutines Nuclear Electric Propulsion Rankine Cycle Ion Engines Computerized Simulation Brayton Cycle Spacecraft Design Electric Power Transmission Magnetoplasmadynamics Alternating Current Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
