계통연계형 태양광발전 시스템의 고장유형별 손실 비교분석

• Published in: 한국태양에너지학회 논문집 Vol. 37; no. 3; pp. 23 - 32
• Main Authors: 소정훈(So Jung-Hun), 고석환(Ko Suk-Whan), 주영철(Ju Young-Chul)
• Format: Journal Article
• Language: Korean
• Published: 한국태양에너지학회 2017
• Subjects: 기타공학; 계통연계(Grid-connected); 고장(Fault); 손실(Loss); 등가 가동시간(Yield)
• ISSN: 1598-6411; 2508-3562
• DOI: 10.7836/kses.2017.37.3.023

This paper presents losses comparison and analysis results for different types of fault modes of grid-connected photovoltaic system generated for long-term operation. The approach of losses comparison and analysis by faults is to identify relationship between measured and estimated values of five loss factors which are quantified from irradiance to system output power. This paper presents the symptom results for faults such as snow, shading, sensor defect, blackout, soiling and so on from three years or more monitored data. These results will indicate that it is useful to develop fault detection and diagnosis tool to enhance capacity factor and save operation and maintenance cost of grid-connected photovoltaic system in the field.