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
- 272 - 279 (8page)
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초록· 키워드
오류제보하기
Power electronics based microgrids consist of a number of voltage source inverters (VSIs) operating in parallel. In this paper, the modeling, control design, and stability analysis of three-phase VSIs are derived. The proposed voltage and current inner control loops and the mathematical models of the VSIs were based on the stationary reference frame. A hierarchical control for the paralleled VSI system was developed based on three levels. The primary control includes the droop method and the virtual impedance loops, in order to share active and reactive power. The secondary control restores the frequency and amplitude deviations produced by the primary control. And the tertiary control regulates the power flow between the grid and the microgrid. Also, a synchronization algorithm is presented in order to connect the microgrid to the grid. The evaluation of the hierarchical control is presented and discussed. Experimental results are provided to validate the performance and robustness of the VSIs functionality during Islanded and grid-connected operations, allowing a seamless transition between these modes through control hierarchies by regulating frequency and voltage, main-grid interactivity, and to manage power flows between the main grid and the VSIs.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. INNER CONTROL DESIGN
Ⅲ. DROOP CONTROL AND VIRTUAL IMPEDANCE LOOP
Ⅳ. COORDINATED SYNCHRONIZATION LOOP
Ⅴ. SECONDARY CONTROL FOR VOLTAGE-FREQUENCY RESTORATION
Ⅵ. SIMULATION RESULTS
Ⅶ. EXPERIMENTAL RESULTS AND CONCLUSIONS
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2013-560-000298997