지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.1
- 수록면
- 82 - 89 (8page)
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초록· 키워드
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Differences in the frequency characteristic applied to a ripple current may shorten fuel cell life span and worsen the fuel efficiency. Therefore, this paper presents an experimental analysis of the ripple current applied variable frequency characteristic in a polymer electrolyte membrane fuel cell (PEMFC). This paper provides the first attempt to examine the impact of ripple current through immediate measurements on a single cell test. After cycling for hours at three frequencies, each polarization and impedance curve is obtained and compared with those of a fuel cell. Through experimental results, it can be absolutely concluded that low frequency ripple current leads to long-term degradation of a fuel cell. Three different PEMFC failures such as membrane dehydration, flooding and carbon monoxide (CO) poisoning that lead to an increase in the impedance magnitude at low frequencies are simply introduced.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. OPERATION PRINCIPLES FOR A PEMFC
Ⅲ. EXPERIMENTAL SETUP
Ⅳ. RESULTS AND DISCUSSION
Ⅴ. PEMFC FAILURES WITH LOW FREQUENCY OPERATION
Ⅵ. CONCLUSIONS
ACKNOWLEDGMENT
REFERENCES
참고문헌 (20)
참고문헌 신청
J. Pukrushpan / 2004 / Control of fuel cell breathing / IEEE Control Syst. Mag 24(2):30~46
C. J. Hatziadoniu / 2002 / A simplified dynamic model of grid-connected fuel-cell generators / IEEE Trans. Power Deliv 17(2):467~473
Changrong Liu / 2007 / Low frequency current ripple reduction technique with active control in a fuel cell power system with inverter load / IEEE Trans. Power Electron 22(4):1429~1436
Guillaume Fontes / 2007 / Interactions between fuel cells and power converters: Influence of current harmonics on a fuel cell stack / IEEE Trans. Power Electron 22(2):670~678
Jung-Min Kwon / 2009 / High-Efficiency Fuel Cell Power Conditioning System With Input Current Ripple Reduction / IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 56(3):826~834
C. J. Hatziadoniu / 2002 / A simplified dynamic model of grid-connected fuel-cell generators / IEEE Trans. Power Deliv 17(2):467~473
Changrong Liu / 2007 / Low frequency current ripple reduction technique with active control in a fuel cell power system with inverter load / IEEE Trans. Power Electron 22(4):1429~1436
Guillaume Fontes / 2007 / Interactions between fuel cells and power converters: Influence of current harmonics on a fuel cell stack / IEEE Trans. Power Electron 22(2):670~678
Jung-Min Kwon / 2009 / High-Efficiency Fuel Cell Power Conditioning System With Input Current Ripple Reduction / IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 56(3):826~834
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UCI(KEPA) : I410-ECN-0101-2012-560-004168909