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Design and Testing of a Breadboard Electrical Power Control Unit for the Fluid Combustion Facility ExperimentThe Fluid Combustion Facility (FCF) Project and the Power Technology Division at the NASA Glenn Research Center (GRC) at Lewis Field in Cleveland, OH along with the Sundstrand Corporation in Rockford, IL are jointly developing an Electrical Power Converter Unit (EPCU) for the Fluid Combustion Facility to be flown on the International Space Station (ISS). The FCF facility experiment contains three racks: A core rack, a combustion rack, and a fluids rack. The EPCU will be used as the power interface to the ISS 120V(sub dc) power distribution system by each FCF experiment rack which requires 28V(sub dc). The EPCU is a modular design which contains three 120V(sub dc)-to-28V(sub dc) full-bridge, power converters rated at 1 kW(sub e) each bus transferring input relays and solid-state, current-limiting input switches, 48 current-limiting, solid-state, output switches; and control and telemetry hardware. The EPCU has all controls required to autonomously share load demand between the power feeds and--if absolutely necessary--shed loads. The EPCU, which maximizes the usage of allocated ISS power and minimizes loss of power to loads, can be paralleled with other EPCUs. This paper overviews the electrical design and operating characteristics of the EPCU and presents test data from the breadboard design.
Document ID
20000014311
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
Kimnach, Greg L. (NASA Glenn Research Center Cleveland, OH United States)
Lebron, Ramon C. (NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
September 7, 2013
Publication Date
December 1, 1999
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
E-11968
NASA/TM-1999-209638
NAS 1.15:209638
Meeting Information
Meeting: 32nd Intersociety Energy Conversion Engineering Conference
Location: Honolulu, HI
Country: United States
Start Date: July 27, 1997
End Date: August 1, 1997
Funding Number(s)
PROJECT: RTOP 398-20-0C
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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