개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2011.5
- 수록면
- 2,304 - 2,311 (8page)
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초록· 키워드
오류제보하기
The direct borohydride fuel cell (DBFC) is directly fed sodium borohydride as a fuel and hydrogen peroxide as an oxidant. The output voltage of the DBFC drops with respect to current demand. Therefore, it requires a dc-dc converter for a regulated voltage. The dcdc converter should be designed considering both the impact of the fuel cell and load disturbances to achieve a wide range voltage response.
This paper analyzes the impact on the dc-dc converter due to the DBFC impedance. Based on the small signal model with the DBFC impedance, the boost converter was evaluated. Impacts of the voltage and current control loops on the boost converter were investigated. Improved speed and stability of the DBFC dc-dc converter was observed by adding a supercapacitor between the DBFC and the dc-dc converter. Finally, two converter controllers, a nonlinear feedforward controller and a state feedback controller are proposed for the further improvement of the dc-dc converter response time. A prototype 20W dc-dc converter was built and tested to show the response improvement of the proposed analysis and control scheme.
This paper analyzes the impact on the dc-dc converter due to the DBFC impedance. Based on the small signal model with the DBFC impedance, the boost converter was evaluated. Impacts of the voltage and current control loops on the boost converter were investigated. Improved speed and stability of the DBFC dc-dc converter was observed by adding a supercapacitor between the DBFC and the dc-dc converter. Finally, two converter controllers, a nonlinear feedforward controller and a state feedback controller are proposed for the further improvement of the dc-dc converter response time. A prototype 20W dc-dc converter was built and tested to show the response improvement of the proposed analysis and control scheme.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. SYSTEM MODELING
Ⅲ. RESPONSE ANALYSIS OF DBFC DC-DC CONVERTER
Ⅳ. RESPONSE IMPROVEMENT ADDING SUPERCAPACITOR
Ⅴ. FURTHER RESPONSE IMPROVEMENT
Ⅵ. SIMULATION RESULTS
Ⅶ. TEST RESULTS
Ⅷ. CONCLUSIONS
ACKNOWLEDGMENT
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2013-560-000302003