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http://dx.doi.org/10.6113/TKPE.2011.16.5.440

Supercapacitor Energy Storage System for the Compensation of Fuel Cell Response Characteristics  

Song, Woong-Hyub (부경대 대학원 전기공학과)
Jung, Jae-Hun (부경대 대학원 전기공학과)
Kim, Jin-Young (부경대 대학원 전기공학과)
Nho, Eui-Cheol (부경대 전기공학과)
Kim, In-Dong (부경대 전기공학과)
Kim, Heung-Geun (경북대 전기공학과)
Chun, Tae-Won (울산대 전기전자정보시스템공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.16, no.5, 2011 , pp. 440-447 More about this Journal
Abstract
This paper deals with supercapacitor energy storage system for the compensation of the slow response characteristics of a fuel cell generation system for grid connection. A bidirectional dc/dc converter is used for the charging and discharging of the supercapacitor. The conventional converters use additional clamping circuit, etc. to reduce a voltage spike at the instant of switching and to provide wide range of soft switching. The proposed method provides simplified hardware implementation without any clamping circuit, and soft switching condition for both charging and discharging mode with proper switching patterns. The usefulness of the proposed scheme is verified through simulation and experimental results with 1 kW system.
Keywords
Fuel cell; Supercapacitor Bidirectional DC/DC converter;
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