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논문 기본 정보

자료유형
학술저널
저자정보
Jae-Hun Cha (Chungbuk National University) Kyung-Won Park (LS Industrial System) Hong-Seon Ahn (LS Industrial System) Kyoung-Min Kwon (Woojin Industrial System) Jin-Hong Oh (Chungbuk National University) Philemon MAHIRANE (Chungbuk National University) Jae-Eon Kim (Chungbuk National University)
저널정보
대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.13 No.2
발행연도
2018.3
수록면
599 - 607 (9page)

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초록· 키워드

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Distributed generation (DG) is being highlighted as an alternative for future power supplies, and the number of DG systems connected to conventional power systems is steadily increasing. DG generators are designed using power electronics and can give rise to various power quality problems, such as overvoltage or overcurrent. Particularly, unintentional islanding operation can occur in a conventional power system when the power grid is separated from the DG systems. Overvoltage may occur in this situation, depending on the power generation and power consumption. However, overvoltage phenomena might not happen even when islanding occurs. Therefore, it is necessary to analyze the fault characteristics during islanding. In this study, a fault analysis of islanding operation was carried out using PSCAD/EMTDC, and a countermeasure for the overvoltage problem is proposed.

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Abstract
1. Introduction
2. Control Structure of Distributed Generation
3. Overvoltage Phenomenon of DG during Islanding Operation
4. Simulation and Analysis
5. Controller Design for Overvoltage Prevention
6. Conclusion
References

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