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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2015.6
- 수록면
- 2,395 - 2,402 (8page)
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초록· 키워드
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The well-known inherent second-order ripple power in single phase converters imposes harmonic stress on the dc link, resulting in low efficiency and overheating issues. In order to avoid installing bulky electrolytic capacitors or LC filters in the dc-link, this paper presents a differential buck inverter to improve the dc link power quality, and an improved active power decoupling method is proposed to achieve ripple power reduction for both AC-DC and DC-AC conversions. The ripple energy storage is realized by the filter capacitors, which are connected between the output terminal and the negative dc bus. By properly controlling the differential mode voltage of the capacitors, it is possible to transfer desired energy between the DC port and AC port. The common mode voltage is controlled in such a way that the ripple power on the dc side will be reduced. Furthermore, an autonomous reference generation technique is proposed to provide accurate ripple power compensation, and closed-loop controllers are also designed based on small signal models. The effectiveness of this power decoupling method is verified by detailed simulation studies as well as laboratory prototype experimental results.
목차
Abstract
I. INTRODUCTION
II. OPERATION PRINCIPLE OF THE PROPOSED POWER DECOUPLING METHOD
III. OVERALL CONTROL METHOD FOR AC-DC AND DC-AC CONVERSIONS
IV. SMALL-SIGNAL MODELING OF THE COMMON MODE AND CONTROLLER DESIGN
V. SIMULATION AND EXPERIMENTAL RESULT
VI. CONCLUSION
REFERENCES
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