인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
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.
피인용 0
초록·키워드
In recent years, the need to use DC power distribution systems has increased and there has been a growing public interest in ensuring their safety. In particular, residual current devices (RCDs) are recognised as an important piece of protective equipment for users, preventing not only equipment accidents but also personal accidents. Therefore, it is necessary to verify the operation of DC RCDs in advance. Therefore, this paper investigates a stable sensor data processing method and algorithm of DC RCDs to ensure the safety of DC electrical equipment and protect people from electric shock. DC RCDs use a fluxgate current sensor as the DC ZCT, but as the fault current increases, the pulse generation frequency increases and distortion occurs. In addition, when the fault current is such that the core is saturated, the pulse generation is interrupted and the fault current is not detected and the breaker does not operate. To solve these problems, a data processing technique has been used which applies compensation by frequency analysis of the magnetic excitation circuit of the sensor to stabilize the operating performance of the protection device. The DC RCD developed in this paper can be used as a protective device to ensure the safety of DC equipment and to protect people from electric shock, and it is judged that it will contribute to ensuring electrical safety by ensuring safety in the event of a fault and taking appropriate preventive measures by confirming the exact cause of the operation of the protective device.
본문·목차
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