DocumentCode :
2319259
Title :
Fuel Cell Current Ripple Mitigation by Interleaved Technique for High Power Applications
Author :
Thounthong, Phatiphat ; Sethakul, Panarit ; Raël, Stéphane ; Davat, Bernard
Author_Institution :
King Mongkut´´s Univ. of Technol. North Bangkok, Bangkok, Thailand
fYear :
2009
fDate :
4-8 Oct. 2009
Firstpage :
1
Lastpage :
8
Abstract :
This paper presents a fuel cell (FC) current ripple mitigation by interleaved algorithm for high power DC distributed system supplied by a FC generator. The major problems of operating a FC in high power applications is high FC ripple current, in which may lead to reduce its stack lifetime. Thus, to improve the FC stack lifetime, a proposed parallel power converter with interleaving technique is chosen to boost a low DC voltage of FC to a DC bus utility level. The present interleaved step-up converters are composed of two and four identical boost converters connected in parallel. Converters are controlled by interleaved switching signals, which have the same switching frequency and the same phase shift. During the past decade, power electronics research has focused on the development of interleaved parallel converters. For an interleaving technique with a real FC source, this work is the first presentation; it is not just a FC simulation. So, the design and experimental verification of 1.2-kW prototype converters at a switching frequency of 25 kHz connected with a Nexatrade PEM fuel cell system (1.2-kW, 46-A) in a laboratory is presented. Experimental results corroborate the excellent system performances.
Keywords :
fuel cells; power convertors; DC bus utility level; fuel cell current ripple mitigation; high power DC distributed system; high power applications; identical boost converters; interleaved algorithm; interleaved step-up converters; interleaved technique; parallel power converter; power electronics; DC generators; Distributed power generation; Fuel cells; Interleaved codes; Low voltage; Power electronics; Power generation; Prototypes; Switching converters; Switching frequency;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industry Applications Society Annual Meeting, 2009. IAS 2009. IEEE
Conference_Location :
Houston, TX
ISSN :
0197-2618
Print_ISBN :
978-1-4244-3475-6
Electronic_ISBN :
0197-2618
Type :
conf
DOI :
10.1109/IAS.2009.5324897
Filename :
5324897
Link To Document :
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