NDLI: Development and testing of an ultracapacitor based uninterruptible power supply (ups) system

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Development and testing of an ultracapacitor based uninterruptible power supply (ups) system

Content Provider	NASA Technical Reports Server (NTRS)
Author	Eichenberg, Dennis J.
Copyright Year	2010
Description	The NASA Glenn Research Center (GRC) initiated the development and testing of an ultracapacitor based uninterruptible power supply (UPS) system as a means to provide backup power for the many critical NASA applications. A UPS system typically utilizes batteries for energy storage. The battery is the most vulnerable part of the UPS system, requiring regular maintenance and replacement. Battery performance is also extremely temperature dependent. Ultracapacitors are ideal for UPS systems where long life, maintenance free operation, and excellent low temperature performance is essential. State of the art symmetric ultracapacitors were used for these tests. The ultracapacitors were interconnected in an innovative configuration to minimize interconnection impedance, and to provide voltage balancing. Ultracapacitors can be charged extremely rapidly and supply high current, which are essential characteristics for an effective UPS system. Charging ultracapacitors is significantly less complex than charging batteries since there is no chemical reaction occurring while charging ultracapacitors. The report concludes that the implementation of symmetric ultracapacitors in a UPS system can provide significant improvements in power system performance and reliability.
File Size	3880264
Page Count	27
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20100031134
Archival Resource Key	ark:/13960/t0102542p
Language	English
Publisher Date	2010-07-01
Access Restriction	Open
Subject Keyword	Energy Production And Conversion Electric Potential Temperature Dependence High Current Maintenance Reliability Electric Batteries Energy Storage Electrochemical Capacitors Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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