Computer Science
Scientific paper
Jun 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976spfl...18..198g&link_type=abstract
Spaceflight, vol. 18, June 1976, p. 198-208.
Computer Science
1
Energy Technology, Satellite Solar Power Stations, Solar Collectors, Solar Energy Conversion, Energy Conversion Efficiency, Microwave Transmission, Single Crystals, Solar Arrays, Solar Cells
Scientific paper
An overview is given of the proposed course of development of a satellite solar power station (SSPS). The technologies under consideration for solar energy conversion, power transmission to earth, and transportation of the system or system components to orbit are discussed. A preliminary design for an SSPS based on single-crystal silicon solar cell arrays has been evolved. Two solar collector panels are designed to provide a power output of about 8500 MW, with an effective power output at the receiving antenna bus bar of about 5000 MW. Structural integrity is provided by a 100-meter diameter central mast and stiffened carried-through structure running through the assembly. Power is carried to microwave generators by structures which support the solar panels. A cross-field converter (Amplitron) with a platinum cathode operating on the principle of secondary emission to optimize lifetime is under consideration for converting dc to rf power at microwave frequencies. Potential transportation systems include the Space Shuttle, a modified Space Shuttle, or a fully reusable liquid oxygen/liquid hydrogen heavy-lift launch vehicle with a potential 400,000 lb payload capability to deliver into low-earth orbit. Ion propulsion could be used for transport of the fully assembled SSPS from low-earth to synchronous orbit.
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