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Power processing units for high power solar electric propulsionAn evaluation of high-power processing units (PPUs) for multimegawatt solar electric propulsion (SEP) vehicles using advanced ion thrusters is presented. Significant savings of scale are possible for PPUs used to supply power to ion thrusters operating at 0.1 to 1.5 MWe per thruster. The PPU specific mass is found to be strongly sensitive to variations in the ion thruster's power per thruster and moderately sensitive to variations in the thruster's screen voltage due to varying the I(sp) of the thruster. Each PPU consists of a dc-to-dc converter to increase the voltage from the 500 V dc of the photovoltaic power system to the 5 to 13 kV dc required by the ion thrusters.
Document ID
19930042098
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Frisbee, Robert H.
(NASA Headquarters Washington, DC United States)
Das, Radhe S.
(NASA Headquarters Washington, DC United States)
Krauthamer, Stanley
(California Inst. of Technology Pasadena, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: IECEC '92; Proceedings of the 27th Intersociety Energy Conversion Engineering Conference, San Diego, CA, Aug. 3-7, 1992. Vol. 6 (A93-25851 09-44)
Publisher: Society of Automotive Engineers, Inc.
Subject Category
Spacecraft Propulsion And Power
Accession Number
93A26095
Distribution Limits
Public
Copyright
Other

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