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Power Electronics for a Miniaturized ArcjetA 0.3 kW Power Processing Unit (PPU) was designed, tested on resistive loads, and then integrated with a miniaturized arcjet. The main goal of the design was to minimize size and mass while maintaining reasonable efficiency. In order to obtain the desired reductions in mass, simple topologies and control methods were considered. The PPU design incorporates a 50 kHz, current-mode-control, pulse-width-modulated (PWM), push-pull topology. An input voltage of 28 +/- 4V was chosen for compatibility with typical unregulated low voltage busses anticipated for smallsats. An efficiency of 0.90 under nominal operating conditions was obtained. The component mass of the PPU was 0.475 kg and could be improved by optimization of the output filter design. The estimated mass for a flight PPU based on this design is less than a kilogram.
Document ID
19970016806
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Pinero, Luis R. (NASA Lewis Research Center Cleveland, OH United States)
Bowers, Glen E. (Gilcrest Electric Cleveland, OH United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1997
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
AIAA Paper 96-2961
E-10650
NAS 1.15:107414
NASA-TM-107414
Meeting Information
Meeting: Joint Propulsion
Location: Lake Buena Vista, FL
Country: United States
Start Date: July 1, 1996
End Date: July 3, 1996
Sponsors: American Society for Electrical Engineers, Society of Automotive Engineers, Inc., American Society of Mechanical Engineers, American Inst. of Aeronautics and Astronautics
Accession Number
97N19211
Funding Number(s)
PROJECT: RTOP 233-1B-1B
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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