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
- 학술대회자료
- 저자정보
- 발행연도
- 2019.5
- 수록면
- 2,350 - 2,355 (6page)
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초록· 키워드
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A novel parallel dual-frequency single-phase grid-connected inverter (PDF inverter) is proposed to improve the quality of the output current and reduce the loss of the grid-connected inverter. In the PDF inverter, there are two units which operate at different switching frequencies. The low-frequency unit has a low switching frequency (2kHz), which transfers electrical energy to the grid. The highfrequency unit operate at a high switching frequency (40kHz), and its current is reversed to the harmonic current of the low-frequency power unit. The principle and control strategy of the novel grid-connected inverter is presented. And the comparison of power loss of two inverters shows that the novel grid-connected inverter has higher efficiency than the LCL-type grid-connected inverter. These capabilities have been demonstrated by mathematical derivation and experiment. For the experiments, a 1500-W prototype has been built in the laboratory. Results obtained confirm the practicality and performance of the proposed inverter.
목차
Abstract
I. INTRODUCTION
II. WORKING PRINCIPLE
II. WORKING PRINCIPLE
IV. CALCULATION METHOD OF POWER LOSSES
IV. CALCULATION METHOD OF POWER LOSSES
VI. EFFICIENCY ANALYSIS
VII. CONCLUSIONS
REFERENCES
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