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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2019.5
- 수록면
- 2,022 - 2,026 (5page)
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초록· 키워드
오류제보하기
When the inverter controlled as a virtual synchronous generator (VSG) is connected to the non-ideal grid, the grid current will be severely distorted, especially when the line impedance is relatively small. However, the commonly used voltage-type VSG at present cannot directly control the output current of the VSG. Thus, this paper presented a method of harmonic suppression based on the virtual harmonic impedance (VHI). By introducing the VHI to the voltage-current dual loop, the equivalent virtual resistor and inductor of each harmonic can be configured independently according to the actual situation. Accordingly, the attenuation ratio of each harmonic current can be adjusted equivalently. The effectiveness of the VHI are verified by simulation.
목차
Abstract
I. INTRODUCTION
II. CONTROL STRATEGY OF THE VSG WITH VIRTUAL IMPEDANCE
III. VIRTUAL HARMONIC IMPEDANCE
IV. CONCLUSIONS
REFERENCES
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