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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2019.5
- 수록면
- 2,840 - 2,845 (6page)
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초록· 키워드
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The active damping method based on proportional voltage feedforward is usually used to solve the inherent resonance and low-order harmonics of LCL filter. However, in the case of low short-circuit capacity and high impedance of weak grid, the grid impedance has a great influence on the control performance, especially for highfrequency inverters based on SiC MOSFET. In order to improve the stability of the inverter, this paper proposes a robust composite control method, which combines gridconnected current feedback active damping, full voltage feedforward and improved current controller. This method can not only adapt to the wide range of changes in grid impedance, but also suppress background harmonics. The simulation and experimental results verify the effectiveness of the proposed method.
목차
Abstract
I. INTRODUCTION
II. STABILITY ANALYSIS OF TRADITIONAL CONTROL METHOD
III. PROPOSED ROBUST CONTROL METHOD
IV. SIMULATION AND EXPERIMENTAL VERIFICATION
V. CONCLUSIONS
REFERENCES
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