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연료전지 시스템용 양방향 DC-DC컨버터 설계 및 제어
김성호(Kim Sung Ho),장한근(Jang Han Keun),장수진(Jang Su Jin),원충연(Won Chung Yuen),김윤호(Kim yoon ho) 전력전자학회 2004 전력전자학술대회 논문집 Vol.- No.-
Fuel Cell (FC) has slow response characteristic for load variation. During a load step, the inverter cannot pull more power from the fuel cell than is currently available so supplemental power must be provide by some sort of energy storage elements. In this paper, bi-directional dc-dc converter for FC generation system is proposed to improve load response characteristic. The bi-directional converter interfaces the low voltage battery to the inverter dc link of FC generation system. The converter is based on a active full bridge in the primary side and on a half bridge in the secondary of a high frequency isolation transformer. The complete operating principles and simulation results in presented.