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A systems approach for a stand-alone residential fuel cell power inverter design / Selamogullari, U.S. in IEEE transactions on energy conversion, Vol. 25, N° 3 (Septembre 2010) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 25, N° 3 (Septembre 2010) . - pp. 741 - 749 Titre : A systems approach for a stand-alone residential fuel cell power inverter design Type de document : texte imprimé Auteurs : Selamogullari, U.S., Auteur ; Torrey, D. A., Auteur ; Salon, S., Auteur Année de publication : 2011 Article en page(s) : pp. 741 - 749 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : field  effect  transistor  switches;  fuel  cell  power  plants;  invertors;  power  semiconductor  switches Résumé : Analysis of an experimentally measured daily load profile reveals that the residential power demand has a high percentage of low power duration over a day. In a stand-alone residential fuel cell power system, the power inverter designed for the peak power requirement will be operating at light loads, where its efficiency is lower, most of the time. Thus, improving the light-load efficiency will provide considerable hydrogen (energy) savings for the stand-alone residential power system. A solution to improve the power inverter efficiency at light loads is proposed. Both simulation and experimental results are given. Results show that the light-load efficiency can be improved by employing and uniquely controlling a parallel IGBT-MOSFET switch combination in a half-bridge inverter topology. It is also shown that substantial savings on hydrogen usage can be realized through the use of new inverter design in stand-alone operations. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5552155&sortType%3Das [...] [article] A systems approach for a stand-alone residential fuel cell power inverter design [texte imprimé] / Selamogullari, U.S., Auteur ; Torrey, D. A., Auteur ; Salon, S., Auteur . - 2011 . - pp. 741 - 749. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 25, N° 3 (Septembre 2010) . - pp. 741 - 749 Mots-clés : field  effect  transistor  switches;  fuel  cell  power  plants;  invertors;  power  semiconductor  switches Résumé : Analysis of an experimentally measured daily load profile reveals that the residential power demand has a high percentage of low power duration over a day. In a stand-alone residential fuel cell power system, the power inverter designed for the peak power requirement will be operating at light loads, where its efficiency is lower, most of the time. Thus, improving the light-load efficiency will provide considerable hydrogen (energy) savings for the stand-alone residential power system. A solution to improve the power inverter efficiency at light loads is proposed. Both simulation and experimental results are given. Results show that the light-load efficiency can be improved by employing and uniquely controlling a parallel IGBT-MOSFET switch combination in a half-bridge inverter topology. It is also shown that substantial savings on hydrogen usage can be realized through the use of new inverter design in stand-alone operations. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5552155&sortType%3Das [...]