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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2008.10
- 수록면
- 363 - 370 (8page)
이용수
초록· 키워드
오류제보하기
In this paper, three kinds of PWM strategies for a three-phase current-fed dc/dc converter are proposed and compared in terms of losses and voltage transfer ratio. Each PWM strategy is described graphically and their switching losses are analyzed. With the proposed PWM C strategy, one turn-off switching of each bridge switch is eliminated to reduce switching losses under the same switching frequency. In addition, RMS current through the bridge switches is lowered by using parallel connection between two bridge switches and thus, conduction losses of the switches are reduced. Further, copper losses of the transformer are decreased due to the reduced RMS current of each transformer’s winding. Therefore, total losses are minimized and the efficiency of the converter is improved by using the proposed PWM C strategy. Digital signal processor (DSP: TI320LF2407) and a field-programmable gate array (FPGA: EPM7128) board are used to generate PWM patterns for three-phase bridge and clamp MOSFETs. A 500W prototype converter is built and its experimental results verify the validity of the proposed PWM strategies.
목차
ABSTRACT
1. Introduction
2. Comparison of PWM Strategies
3. Calculation of Switching Losses
4. Implementation and Experimental Results
5. Conclusions
Acknowledgement
References
참고문헌 (9)
참고문헌 신청
1. [학술대회논문] - M.W. Ellis / 2001 / “Fuel cell systems: efficient, flexible energy conversion for the 21st century” / the IEEE : 1808 ~ 1818
2. [학술대회논문] - V. Yakushev / 1999 / “Full-bridge isolated current fed converter with active clamp” / Applied Power Electronics Conference and Exposition : 560 ~ 566
3. [학술대회논문] - W.C.P. De Aragao Filho / 1996 / “A comparison between two current-fed push-pull DC-DC converters-analysis, design and experimentation” / 18th International Telecommunications Energy Conference : 313 ~ 320
4. [학술대회논문] - Kunrong Wang / 2000 / “Design, implementation, and experimental results of bi-directional full-bridge DC/DC converter with unified soft-switching scheme and soft-starting capability” / IEEE 31st Annual Power Electronics Specialists Conference : 1058 ~ 1063
5. [학술지(정기간행물)] - Jr.de Souza Oliveira / 2005 / “A three-phase ZVS PWM DC/DC converter with asymmetrical duty cycle for high power applications” / IEEE Transactions on Power Electronics 20 (2) : 370 ~ 377
2. [학술대회논문] - V. Yakushev / 1999 / “Full-bridge isolated current fed converter with active clamp” / Applied Power Electronics Conference and Exposition : 560 ~ 566
3. [학술대회논문] - W.C.P. De Aragao Filho / 1996 / “A comparison between two current-fed push-pull DC-DC converters-analysis, design and experimentation” / 18th International Telecommunications Energy Conference : 313 ~ 320
4. [학술대회논문] - Kunrong Wang / 2000 / “Design, implementation, and experimental results of bi-directional full-bridge DC/DC converter with unified soft-switching scheme and soft-starting capability” / IEEE 31st Annual Power Electronics Specialists Conference : 1058 ~ 1063
5. [학술지(정기간행물)] - Jr.de Souza Oliveira / 2005 / “A three-phase ZVS PWM DC/DC converter with asymmetrical duty cycle for high power applications” / IEEE Transactions on Power Electronics 20 (2) : 370 ~ 377
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