지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2011.5
- 수록면
- 551 - 556 (6page)
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초록· 키워드
오류제보하기
A popular power control and load demand sharing method for distributed generation (DG) units in microgrid is the frequency and voltage droop control. However, in a low voltage microgrid, due to the effects of nontrivial feeder impedance, the conventional droop control is subject to the real and reactive power coupling and steady-state reactive power errors. Furthermore, different microgrid configurations (looped network or radial system) and the different locations of loads make the DG reactive power sharing even more challenging. To improve the power control and sharing accuracy, this paper proposes a control strategy that estimates the reactive power sharing errors of DG units through injecting small real power disturbances. With the estimated reactive power errors, the conventional reactive power droop control can be improved with zero steadystate sharing error, just like the real power sharing through frequency droop control. The proposed method can work in both grid-connected mode and islanding mode and is effective for all types of microgrid configurations and load locations.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. CONVENTIONAL DROOP CONTROL METHOD
Ⅲ. PROPOSED IMPROVED DROOP CONTROL METHOD
Ⅳ. SIMULATION AND EXPERIMENTS
Ⅴ. CONCLUSIONS
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2013-560-000299429