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논문 기본 정보

저자정보
(Soongsil University) (Soongsil University) (Soongsil University) (Soongsil University) (Soongsil University)
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대한전기학회 전기학회논문지 전기학회논문지 제73권 제11호
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    초록·키워드

    The application of distributed generations (DGs) is increasing. Because renewable energy is eco-friendly and has low carbon emissions interest on renewable energy based DGs is growing. However, as the number of DGs increases, the fault current magnitude in the system can either increase or decrease during faults. These changes can result in malfunctions or failure of overcurrent relays (OCRs), potentially leading to a large blackout. Research on superconducting fault current limiter (SFCL) to limit fault currents has been conducted, but applying SFCLs in distribution systems with DGs can complicate protective coordination among relays. In this paper, cases of malfunction and failure of OCRs due to the connection of distributed power sources were analyzed, and method to improve the protective coordination of OCRs using SFCLs were proposed.

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      UCI(KEPA) : I410-151-25-02-091081603