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5-kW arcjet power electronicsThe initial design and evaluation of a 5 kW arcjet power electronics breadboard which as been integrated with a modified 1 kW design laboratory arcjet is presented. A single stage, 5 kW full bridge, pulse width modulated (PWM), power converter was developed which was phase shift regulated. The converter used metal oxide semiconductor field effect transistor (MOSFET) power switches and incorporated current mode control and an integral arcjet pulse ignition circuit. The unoptimized power efficiency was 93.5 and 93.9 percent at 5 kW and 50A output at input voltages of 130 and 150V, respectively. Line and load current regulation at 50A output was within one percent. The converter provided up to 6.6 kW to the arcjet with simulated ammonia used as a propellant.
Document ID
19890062314
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gruber, R. P.
(NASA Lewis Research Center Cleveland, OH, United States)
Gott, R. W.
(NASA Lewis Research Center Cleveland, OH, United States)
Haag, T. W.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 14, 2013
Publication Date
July 1, 1989
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
AIAA PAPER 89-2725
Accession Number
89A49685
Distribution Limits
Public
Copyright
Other

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