Photovoltaic superiority for Space Station Freedom power in the 21st centuryComplete power systems capable of delivering 75 kW of continuous power in low earth orbit have been compared. Performance, liabilities, and advantages are discussed for a shielded nuclear system, a solar dynamic system, and photovoltaic systems, both current Freedom Si design and near-term GaAs/Ge with NaS storage. System components include power generation, storage (if required), heat rejection, power conversion and distribution, structural support, and shielding (if required). Performance parameters indicate the substantial advantage of the GaAs/Ge photovoltaic system, which does not require altering the support structure of the current Freedom design.
Document ID
19910057381
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bailey, Sheila G. (NASA Lewis Research Center Cleveland, OH, United States)
Landis, Geoffrey A. (Sverdrup Technology, Inc. Brook Park, OH, United States)