인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
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.
초록·키워드
Under voltage relays (UVR) and over-current relays (OCR) are used for protective modulation in distribution lines, contributing to the stabilization of distribution lines by separating lines in response to over-current or under-voltage conditions. These relays are capable of stabilizing and isolating the faulty line when operating at or near their rated limits. However, in extreme situations such as short-circuit accidents, grid coordination—in which all relays operate instantaneously to isolate only the faulty line—has a major disadvantage; that is, it is difficult to operate stably, causing a power outage across the entire distribution system. To solve this problem, there is a rapidly increasing demand for integrated relays that cooperate with each other in the current distribution coordination system they operate in independently. This paper proposes an integrated UVR-OCR relay for organic cooperation in the event of a short circuit in distribution lines. The proposed method demonstrates strong performance in all operations, including current sensing and short circuit judgment, and achieves a trip delay within 40 msec. The validity of the proposed method is verified through simulations and experiments.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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UCI(KEPA) : I410-151-25-02-091225105