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
As renewable energy sources are increasingly integrated into power systems to mitigate the climate crisis, the adoption of smart inverters—key devices for enhancing the stability of distributed generators like photovoltaic (PV) systems—is being encouraged. Consequently, research on the impact of smart inverters on potential power system fluctuations is also growing. In this paper, a simulated distribution system was constructed to model load power variations and undervoltage conditions caused by single-line-to-ground faults. By configuring various Volt-VAR curves for the smart inverter, its effects on voltage recovery and line loss in the distribution system were analyzed. Our findings confirmed that a smaller slope in the Volt-VAR curve provided a more significant compensation effect for overall voltage drops in the distribution system. Also, setting an excessively large slope could lead to voltage oscillation due to reactive power output, thereby negatively impacting the entire system's stability. Two causes for oscillation phenomena in smart inverters were identified, stemming from their computation and control methods. Despite these inherent operational characteristics, experimental results further confirmed that mitigating these oscillations was achievable by adjusting the slope of the Volt-VAR curve to a gentler setting.
본문·목차
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