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논문 기본 정보

저자정보
(한국전자기술연구원) (한국전자기술연구원) (한국폴리텍V대학)
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전력전자학회 전력전자학회논문지 전력전자학회 논문지 제30권 제3호
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    초록·키워드

    The use of DC distribution networks increases with the increasing adoption of electric propulsion systems in ships. Conventional mechanical circuit breakers should be replaced with solid-state circuit breakers (SSCBs) capable of ultrafast interruption in the microsecond range to ensure protection for these networks. This study focuses on the development of a 1.1 kV 2 kA SSCB for protecting 10 MW-class electric propulsion ships. A voltage-clamping MOV, a semiconductor switching unit, which is the core component of the SSCB, and a simplified short-circuit test setup were designed and fabricated. The voltage-clamping performance of the MOV and the operational characteristics of the SSCB were analyzed. Results confirmed that the developed SSCB can perform high-speed DC power interruption under its rated capacity. The proposed SSCB could be applied to large-scale electric propulsion systems for ships and power trading systems based on high-capacity ESS DC distribution networks.

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      UCI(KEPA) : I410-151-25-02-093114552