DocumentCode :
1442718
Title :
Solar power system options for the Radiation and Technology Demonstration spacecraft
Author :
Kerslake, Thomas W. ; Haraburda, Francis M. ; Riehl, John P.
Author_Institution :
NASA Glenn Res. Center, Cleveland, OH, USA
Volume :
16
Issue :
2
fYear :
2001
fDate :
2/1/2001 12:00:00 AM
Firstpage :
9
Lastpage :
19
Abstract :
The Radiation and Technology Demonstration (RTD) Mission has the primary objective of demonstrating high-power (10 kilowatts) electric thruster technologies in Earth orbit. This paper discusses the conceptual design of the RTD spacecraft photovoltaic (PV) power system and mission performance analyses. These power system studies assessed multiple options for PV arrays, battery technologies and bus voltage levels. To quantify performance attributes of these power system options, a dedicated Fortran code was developed to predict power system performance and estimate system mass. The low-thrust mission trajectory was analyzed and important Earth orbital environments were modeled. Baseline power system design options are recommended on the basis of performance, mass and risk/complexity. Important findings from parametric studies are discussed and the resulting impacts to the spacecraft design and cost
Keywords :
aerospace propulsion; electric propulsion; ion engines; photovoltaic power systems; solar cell arrays; space vehicle power plants; Earth orbit; Hall thruster; PV arrays; Radiation and Technology Demonstration Mission; battery technologies; bus voltage levels; complexity; conceptual design; dedicated Fortran code; energy storage; high-power electric thruster technology; low-thrust mission trajectory; magnetoplasma rocket thruster; mission performance analyses; multiple options; parametric studies; performance attributes; risk; solar power system options; spacecraft PV power system; spacecraft cost; spacecraft design; system mass estimation; Batteries; Earth; Performance analysis; Photovoltaic systems; Power system analysis computing; Power system modeling; Solar energy; Solar power generation; Space technology; Space vehicles;
fLanguage :
English
Journal_Title :
Aerospace and Electronic Systems Magazine, IEEE
Publisher :
ieee
ISSN :
0885-8985
Type :
jour
DOI :
10.1109/62.904239
Filename :
904239
Link To Document :
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