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http://dx.doi.org/10.5207/JIEIE.2004.18.6.205

Design of the Fuel Cell Powered Line-Interactive UPS System  

Choi, Woo-Jin (숭실대학교)
Jeon, Hee-Jong (숭실대학교)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.18, no.6, 2004 , pp. 205-212 More about this Journal
Abstract
In this paper the design of a 1-[KVA] fuel cell powered line-interactive UPS system employing modular (fuel cell & DC/DC converter) blocks is proposed. The proposed system employs the two fuel cell modules along with suitable DC/DC converters and these modules share the DC-Link of the DC/AC inverter. A supercapacitor module is also employed to compensate for the instantaneous power fluctuations and to overcome the slow dynamics of the fuel processor. The energy stored in the supercapacitor can also be utilized to handle the overload conditions for a short time period. Due to the absence of batteries, the system satisfies the demand for an environmentally friendly and dean source of the energy. A complete design example illustrating the amount of hydrogen storage required for 1hr power outage, and sizing of supercacpacitor for transient load demand is presented for a 1-[KVA] UPS.
Keywords
Fuel cell; Line-interactive UPS; Supercapacitor; Reformer; Fuel calculation;
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