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.
초록·키워드
Recently, electrical equipment in detached houses include various power conversion devices such as LED lighting, HVAC systems, electric vehicle chargers, and photovoltaic (PV) systems. This study systematically analyzed the harmonic characteristics of major electrical appliances used in detached houses and verified the effectiveness of filter application for harmonic mitigation based on measurement data at the main circuit breaker. The results of individual measurements of major appliances showed that the voltage total harmonic distortion (V<sub>THD</sub>) satisfied the IEEE 519 standard (≤8%). However, the current total harmonic distortion (I<sub>THD</sub> ) and current total demand distortion (I<sub>TDD</sub>) exhibited relatively high values in appliances such as refrigerators and HVAC systems, and the I<sub>TDD</sub> measured at the main circuit breaker ranged from 23% to 29%, exceeding the IEEE standard limit of 15%. To resolve this issue, the passive low-pass Bessel filters were designed and fabricated. Measurement results indicated that V<sub>THD</sub> was reduced by approximately 12% 16%, and I<sub>TDD</sub> was reduced by up to 47%. In particular, during periods without PV generation, the I<sub>TDD</sub> decreased to below 15%, satisfying the standard, and power factor improvement was also confirmed. This study empirically identified harmonic problems occurring in detached houses and demonstrated that cost-effective passive filters can serve as an effective solution.
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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